Electron collision cross sections for highly reactive CFx (x = 1-3) radicals are required to model technological plasmas. In spite of their importance to industry, experimental studies of electron interactions with CFx radicals are rarely reported in the literature. A new apparatus for measuring absolute elastic differential ...

This paper reports measurements of absolute cross sections, differential in angle, for scattering of

Using a crossed electron-molecular beam experiment, featuring a skimmed nozzle beam with pyrolytic radical production, absolute elastic cross sections for electron scattering from the CF2 molecule have been measured. A new technique for placing measured cross sections on an absolute scale is ...

A combined experimental and theoretical study of 50 eV electron-impact ionization of helium is presented. The absolute coplanar triple differential cross sections (TDCS) are measured for 4 eV and 10 eV slow electrons for fixed scattering angles; -20 deg, ...

Absolute differential and total cross sections for single electron capture of H{sup +} ions impinging on Ar atoms in the energy range of 0.5-5.0 keV and scattering angles from -5.0 deg. to 5.0 deg. are reported. The absolute differential cross (DCS) sections for all ...

An experimental study is presented of the resonant Raman spectra of beta carotene. Absolute differential cross sections are obtained for the most intensive Raman spectral lines with excitation at the absorption maximum. A theoretical analysis is presented...

In spite of their importance to industry, experimental studies of electron interactions with highly-reactive CFx radicals are seldom reported in the literature. A crossed electron-molecular beam experiment, featuring a skimmed nozzle beam with pyrolytic radical production, has been used to measured absolute cross sections for electron ...

... Title : ABSOLUTE RAYLEIGH SCATTERING CROSS SECTIONS OF GASES AND FREONS OF STRATOSPHERIC INTEREST IN THE VISIBLE ...

The absolute (e,2e) triply differential cross sections measured in coplanar nonsymmetric conditions are reported for the intermediate 2p orbital of Ar, at an incident energy of 8.4 keV. The data are made absolute by integrating over all ejection directions and comparing with the corresponding doubly ...

The absolute differential cross section for the {sup 2}H({gamma},{ital p}){ital n} reaction has been measured using a large solid angle detector, with a tagged photon beam of mean energy 67 MeV. The data have been compared with nine different theoretical calculations of the cross section, which account for the data ...

We have conducted measurements of absolute differential cross sections for the excitation of hydrogen atoms to their n=3(3S+3P+3D) and 4(4S+4P+4D+4F) levels. A modulated, crossed-beam method was employed, and the impact energies were 40 and 60 eV. Comparison of our results with those of others is quite favorable.

In this work, we report an experimental cross-section determination of elastic electron collisions with tetrahydrofuran in the intermediate-energy range. More specifically, absolute differential cross sections are measured and reported in the (50-1000) eV range. The measurements were performed using a ...

The absolute differential cross section for elastic p-p scattering was measured for an energy of 0.97 Bev at 6, the unpolarized differential cross- section curve. A total elastic cross-section of (26.8 plus or minus 2.3) mb and a forward scattering ...

The absolute 60Ni(gamma, n) and Fe(gamma, n) differential cross sections at 93 degrees with respect to the incident bremsstrahlung beam were measured near the thresholds for 60Ni and 56Fe, respectively. Time-of-flight techniques were used to determine the...

A review is made of the various experimental methods used to determine the physics of natural uranium graphite, lattices. Integral lattice experiments reviewed include absolute and differential effective cross section measurements by activation methods and analysis of irradiated fuels and fine structure measurements. A number of ...

We have calculated, independently, the {sup 1}S singly differential cross section for the electron-impact ionization of hydrogen at an incident energy of 4.0 eV above threshold using two different methods: time-dependent close coupling and exterior complex scaling. The absolute value of the {sup 1}S cross section ...

The hyperspherical R-matrix method with semiclassical outgoing waves introduced by us previously [Phys. Rev. A 60, 3667 (1999)] is applied to the one-photon double ionization of the He atom. The absolute differential cross sections obtained are in excellent agreement with experiment for the very challenging dynamical situations ...

The differential cross section in free n-p forward elastic scattering has been measured for incident neutron energies of 378, 481, 582, 683, 784, 884, and 1085 MeV and for momentum transfer 0.01

This paper reports absolute elastic differential scattering cross sections (DCSs) for electron impact on CO and N2 in the energy range 20-100 eV and angular range 20-120 deg. The results are obtained using a relative flow technique in which the DCS of CO is compared with that of He at each angle and energy and the DCS of N2 is compared ...

In a coincidence experiment, we have measured the absolute differential cross section for K-shell ionization of Cu and Ag by 140-keV electrons. The results are discussed and compared with the calculations of Das and of Cooper and Kalbensvedt. While the agreement between experiment and theory is reasonable at 15 deg , there ...

... Accession Number : AD0602400. Title : ABSOLUTE INVARIANCE AND INVARIANCE TO IN THE THEORY OF DIFFERENTIAL EQUATIONS, III,. ...

We present absolute partial electron impact ionization cross sections for ethylene in the electron energy range between threshold and 1000 eV measured with a two sector field double focusing mass spectrometer. Ion kinetic energy distribution functions have been measured at all electron energies by applying a deflection field method. Multiplication of the ...

The differential cross section for the production of bremsstrahlung by electrons with energies of 95 and 180 kev was measured with a scintillation spectrometer. Al/sub 2/O/sub 3/ and Au targets were used. A comparison with a theory using Born's approximation demonstrates that the Coulomb correction depends strongly on the angle even for ...

... Title : Absolute Absorption Cross Section Measurements of Ozone and the Temperature Dependence at Four Reference Wavelengths Leading to ...

The relationships between differential and integral cross sections are considered together with their application to the calculation of reaction rates in reactor spectra. A brief review of the measurement of these quantities is given in order to show the importance of chemical analysis in all methods. Particular attention is devoted to the ...

We present an experimental study for elastic electron-dimethyl ether scattering. Relative flow technique is used to determine the absolute cross sections. Elastic differential and integral cross sections measured in the 100-1000 eV are reported.

The absolute double differential cross section (DDCS), the generalized oscillator strength distribution (GOSD), and the ionization efficiency of ammonia (NH3) were investigated from the threshold to 40 eV under the condition of 200 and 400 eV incident electron energies and 6 and 8 degree scattering angles using electron energy-loss ...

The electron--proton coincidence method was used to determine the absolute differential cross sections for electron--atom scattering in helium. These studies were made for excitation of the 4/sup 1/S, 4/sup 1/D, 5/sup 1/S and 5/sup 1/D states which are not resolved by an electron spectrometer; the experiments were performed ...

A set of three computer programs is reported which allow for the deconvolution of overlapping molecular electronic state structure in electron energy-loss spectra, even in highly perturbed systems. This procedure enables extraction of absolute differentia...

Energy and angle differential cross sections for the electron-impact double ionization of helium are calculated using a non-perturbative time-dependent close-coupling method. Collision probabilities are found by projection of a time evolved nine dimensional coordinate space wave function onto fully antisymmetric products of spatial and spin functions ...

Differential cross sections (DCSs) for elastic scattering of electrons from pyrimidine (C{sub 4}H{sub 4}N{sub 2}) are presented for incident energies from 50 to 300 eV. The measurements were performed using a cross beam technique, for scattering angles from 20 deg. to 110 deg. The relative DCSs were measured as a function of both the ...

Differential cross sections (DCSs) for elastic scattering of electrons from pyrimidine (C4H4N2) are presented for incident energies from 50 to 300 eV. The measurements were performed using a cross beam technique, for scattering angles from 20� to 110� . The relative DCSs were measured as a function of both the angle and ...

The elastic proton-helium differential cross sections were determined for 5 different incident laboratory energies from 40 to 400 GeV in the range 0.003 < t absolute value < 0.52 (GeV/c)/sup 2/. The differential cross section drops 4 to 5 orders of magnitude to the first dip at t ...

A tagged medium-energy neutron beam was used in a precise measurement of the absolute differential cross section for np backscattering. The results resolve significant discrepancies within the np database concerning the angular dependence in this regime. The experiment has determined the absolute normalization with ...

The hydride anion H- would not be bound in the absence ofelectron correlation. Electron correlation drives the doublephotoionization process and, thus should impact double photoionizationresults most strongly for H-. We present fully differential crosssections for the three-body breakup of H- by single photon absorption.The absolute ...

Differential and absolute cross sections for the coherent reaction /sup 40/Ca(/gamma/,/pi//sup 0/)/sup 40/Ca g.s., as well as for the incoherent reaction /sup 40/Ca(/gamma/,/pi//sup 0/)/sup 40/Ca(g.s.), have been measured with monochromatic photons in the threshold region (/ital E//sub /gamma//=157--169 MeV). The ...

The differential cross sections for excitation of the n = 2 state of atomic hydrogen by the impact of electrons with energies of 54, 100, 136, and 200 eV are calculated in the distorted-wave approximation with exchange included. Cross sections for excitation of the 2s/sub 1/2/, 2p/sub 1/2/, and 2p/sub 3/2/ states are calculated and ...

The absolute cross section of electron-electron bremsstrahlung, which is differential in all the free kinematical variables, was measured by using an electron-photon coincidence technique. An electron beam of 300 keV was used, incident on a carbon target. Within the experimental errors we found agreement with recent ...

The major constituent in the atmosphere of the Earth at altitudes between 200 and 500km is atomic oxygen. Collisions involving atomic oxygen are therefore important in this region of the atmosphere. Due to the difficulty in producing atomic oxygen in the laboratory, there are very few reported measurements of scattering cross sections with an atomic oxygen target. The author ...

We report absolute elastic differential, integral, and momentum transfer cross sections for electron interactions with the series of molecules CH3X (X=F, Cl, Br, I). The incident electron energy range is 50-200 eV, while the scattered electron angular range for the differential measurements is 15�-150�. In all ...

Electron-impact vibrational excitation of the hydrogen molecule has been revisited in the energy region from 1 to 5 eV. A crossed-beam double trochoidal electron spectrometer is used. Forward and backward scattered electrons from the v=0?1 excitation channel are separated by electron-beam modulation and time-of-flight detection technique. Present results are normalized and ...

Absolute differential cross sections (DCS's) for electron-impact excitation of the lowest forty electronic levels in atomic neon have been determined for incident electron energies of 30 and 50 eV, for the four lowest levels at 25 eV, and two levels at 100 eV. The cross sections for these forty electronic levels ...

Doubly differential electron velocity spectra induced by 36Ar18 + (95 MeV/ u) from thin target foils (C, Ni, Ag, Au) were measured at GANIL (Caen, France) by means of the ARGOS multidetector and the time-of-flight technique. The main features observed in the forward spectra are convoy electrons, binary-encounter electrons, and (for the Au target only) a high-velocity tail ...

Doubly differential electron velocity spectra induced by 95-MeV/u {sup 36}Ar{sup 18+} from thin carbon foils were measured at GANIL (Caen, France) by means of the ARGOS multidetector and the time-of-flight technique. The spectra allow us to determine absolute singly differential cross sections as a function of the ...

Doubly differential electron velocity spectra induced by 95-MeV/u 36Ar18+ from thin carbon foils were measured at GANIL (Caen, France) by means of the ARGOS multidetector and the time-of-flight technique. The spectra allow us to determine absolute singly differential cross sections as a function of the emission ...

Single ionization of argon by 195-eV electron impact is studied in an experiment, where the absolute triple-differential cross sections are presented as three-dimensional electron emission images for a series of kinematic conditions. Thereby a comprehensive set of experimental data for electron-impact ionization of a many-electron ...

The absolute values and the form of doubly differential cross-sections of the nonresonance Compton x-ray photon scattering by an atom with d symmetry in the core are studied by the example of a Zn atom beyond the impulse approximation. The effects of radial relaxation of atomic shells in the field of core vacancies and elastic (Thomson ...

The procedures and status of the absolute measurement of the neutron capture cross sections for exp 115 In and exp 232 Th are described. Work on the exp 239 Pu fission fragment anisotropy and absolute measurement of the fast neutron fission cross section ...

High resolution measurements using the ({sup 3}He,n) reaction are used to determine excitation energies of astrophysically important states. Further, spins can be assigned to these states by comparing the measured differential cross sections to Hauser-Feshbach cross sections. The astrophysical reaction rates are then calculated using ...

There has been a surge of progress and published results in neutrino cross-section physics in recent years. In many cases, absolute differential cross-sections are being measured for the first time and can be compared to interaction models first developed decades ago. These measurements are important input for the ...

Electron interaction cross sections for species found in low-temperature industrial plasma environments are a crucial component to allow for accurate modeling of those plasmas. However, such data are still rarely reported in the literature, due to the complexities of working with such highly reactive species in a laboratory. Here, absolute ...

Absolute total electron detachment and relative elastic differential cross sections for the scattering of Cl$sup -$ by Ne, Ar, Kr, and Xe have been measured at energies ranging from near detachment threshold to 180 eV. The experimental results have been analyzed by using semiclassical expressions for the ...

This paper presents a measurement of J/psi, psi' differential cross sections in p bar-p collisions at radical s = 1.8 TeV. The cross sections are measured above 4 GeV/c in the central region (absolute value of eta less than 0.6) using the dimuon decay channel. The fraction of events from B decays is measured, and ...

The absolute differential cross sections for the He3(?,n)pp reaction were measured as a function of outgoing neutron scattering angle and energy at the incident ?-ray energies of 12.8, 13.5, and 14.7 MeV to within a precision better than �6%. Both the absolute cross sections and the neutron ...

Differential cross sections for pi- p and pi+ p elastic scattering were measured at five energies between 19.9 and 43.3 MeV. The use of the CHAOS magnetic spectrometer at TRIUMF, supplemented by a range telescope for muon background suppression, provided simultaneous coverage of a large part of the full angular range, thus allowing very precise relative ...

An algorithm is presented for restoration of colour microscopic images with distortions from imperfect microscope lenses having transverse chromatic aberrations, resulting in a magnification that slightly varies with wavelengths or colours. The differential of each colour component image is computed as the difference between the component image and its slightly magnified ...

Absolute total and differential cross sections of the NN reaction channels may be used to determine partial wave amplitudes and photocouplings for the baryon resonances which decay predominantly into N. The aim of the current analysis of the pp0 channel is to determine absolute differential and ...

The authors report absolute differential and integral cross section measurements for electron-impact excitation of the A (1)B(1) electronic state of water. This is an important channel for the production of the OH (X (2)Pi) radical, as well as for understanding the origin of the atmospheric Meinel [Astrophys. J. 111, 555 (1950)] bands. ...

Absolute measurements have been made of single electron charge exchange cross ... Charge exchange is an important process in solar and stellar atmospheres, ...

... Title : High Resolution Absolute Absorption Cross Sections of NO2 at 295, 573, and 673K at Visible Wavelengths: Comprehensive Data Tables. ...

Cometary X-ray Emission Spectra and Absolute Charge-Exchange cross Sections ... Also reported were absolute single, double, and triple charge-exchange cross ...

The absolute cross section for photoionization of atomic oxygen from the 2p4 3P ground state of O(0)

... Accession Number : ADA216730. Title : Absolute Cross-Sections for Dissociative Electron Attachment in O2 Condensed on Kr Films. ...

... RESEARCH MANAGEMENT, SAMPLERS, CIRCULATION, DIFFERENTIAL CROSS SECTIONS, AEROSOL GENERATORS, MICROSPHERES. ...

... Accession Number : AD0658398. Title : DIFFERENTIATION IN CROSS-CULTURAL COMMUNICATION,. Corporate Author ...

A compilation is provided of absolute total photoabsorption and partial-channel photoionization cross sections for the valence shells of selected molecules, including diatomics (H2, N2, O2, CO, NO) and triatomics (CO2, N2O), simple hydrides (H2O, NH3, CH4), hydrogen halides (HF, HCl, HBr, HI), sulfur compounds (H2S, CS2, OCS, SO2, SF6),and chlorine ...

We have measured differential (P,xin) cross sections, d/sup 2/sigma/d..cap omega..dE/sub n/, from thin targets and absolute neutron yields from stopping-length targets at angles of 7.5/degree/, 30/degree/, 60/degree/, and 150/degree/, for the 113--MeV proton bombardment of elemental beryllium, carbon, aluminum, iron, and depleted ...

Differential and integral cross sections for electron-impact excitation of the b /sup 3/..sigma../sub u//sup +/ state of H/sub 2/ have been determined in the 20--100-eV impact energy region. The calibration of the cross sections was achieved through the H/sub 2/ elastic scattering cross sections, which in turn ...

The ( alpha , sup 2 He)-reaction was studied at 56-57 MeV incident energy at the target nuclei sup(58,60,62,64)Ni. In a laboratory angular range from 15 degrees -37.5 degrees the angular distributions of the absolute differential cross section were taken ...

Absolute differential cross sections for the elastic scattering of 29- Mev He/sup 3/ particles by H and D were measured using the photographic plate method. The He/sup 3/--H angular distribution was compared with theoretical predictions based on resonating group theory. (auth)

The frequency dependence of the nonlinear optical susceptibilities of fused quartz and four other glasses were determined along with the relative contributions of electronic and nuclear mechanisms to their nonlinear optical indices. This is the first such determination in solids. The method has been to analyze the absolute measurement of ordinary ...

It would be extremely advantageous, from the point of view of the planning of experiments and of the testing of theoretical models by such experiments, if a representation of the reaction matrix could be found such that the differential cross section is given by the absolute value squared of a single amplitude, and the simplest type of ...

COUNTER U/D SCALER DAC PA 3M 3M 3M 3M 100nF 5nF MCP MCP 1 5 RAE GRID 2M 2M 0.4M p p E. P. Benis and T. J a hemispherical analyser and a 2�dimensional position�sensitive detector (PSD) with multichannel plates

The results of experiments performed at Argonne to determine absolute differential and total cross sections for outgoing protons, ..cap alpha.. particles and neutrons in deuteron-induced reactions on /sup 6/Li at energies between approximately 0.1 and 1.0 MeV are summarized. Discussion of the observed angular and energy distributions ...

A modified Glauber method proposed recently for electron-atom scattering is extended to the analysis of the 1-2 excitation of atomic hydrogen by electron impact. Exchange effects are not neglected, but included in the calculation through the exact eikonal exchange formulas. The results are compared with experimental data acquired by absolute measurements. Good agreement with ...

Absolute measurements of an integral of the differential cross section for the scattering of electrons by CsBr are reported in the 1--22.5-eV energy range. A precise prescription for comparison with theory is presented, thus setting a benchmark for testing calculations. Comparison with Born-approximation calculations is also presented.

Absolute values of the differential cross sections for the reaction C12(C12, alpha)Ne20 to the ground and 1.63-MeV states are given at 100keV energy intervals between 20.3- and 25.6-MeV bombarding energy at eight equally spaced angles between 3 and 73 deg...

Reactions of a radioactive (sup 11) Be beam at 41 MeV/u have been investigated. The absolute magnitude of the differential cross-sections of the forward neutrons in the exclusive ((sup 10) Be + n) channel can be accounted for quantitatively in a simple mo...

Diffractive interactions with two high p{sub T} jets are studied in photo-and electroproduction at HERA. Within the large errors, the absolute cross sections and the differential distributions are reasonably well described in both cases by models based on a factorisable pomeron flux and a meson component, the pomeron structure function ...

In order to test the {sup 16}C internal wave function, we perform microscopic coupled-channels (MCC) calculations of the {sup 16}C(0{sub 1}{sup +}{yields}2{sub 1}{sup +}) inelastic scattering by a {sup 208}Pb target at E/A=52.7 MeV using the antisymmetrized molecular dynamics (AMD) wave functions of {sup 16}C, and compare the calculated differential cross ...

Vibrational excitation of gaseous methylamine induced by 4.5--30 eV energy electrons has been investigated by the electron energy loss spectroscopy. The ratios of the differential cross sections for excitation of the vibrational modes and for elastic scattering measured as a function of the electron kinetic energies show that at 15 and 30 eV, the ...

Differential cross sections were measured for alpha particles from the reactions Be/sup 9/(Li/sup 6/, alpha )B/sup 12/ and Be/sup 9/(Li /sup 7/, alpha )B/sup 12/. These reactions were studied for the ground states, the first seven excited states of B/sup 11/, and the first four excited states of B/sup 12/. Absolute ...

A joint experimental-theoretical study on electron-SO2 collisions in the low and intermediate energy range is reported. More specifically, experimental elastic differential, integral, and momentum transfer cross sections in absolute scale are measured in the 100-1000 eV energy range using the relative-flow technique. Calculated elastic ...

Double-differential ionization cross sections of adenine (C5H5N5) by 1.0-MeV protons have been measured using a vapor-phase adenine target. Ejected electrons were analyzed by a 45? parallel-plate electrostatic spectrometer in an electron energy range from 1 to 1000 eV at electron emission angles from 15? to 165?. The effective target thickness of adenine ...

Measurements of absolute differential cross sections for H{sup +}-H{sub 2} direct, single-, and double-charge-transfer scattering at 0.5, 1.5, and 5.0 keV are reported at laboratory scattering angles less than 1{degree} with an angular resolution of approximately 0.02{degree}. The cross sections exhibit deep ...

The CDF collaboration collected 19.5 pb(sup -1) of data during the 1992-93 collider run at Fermilab. Using these data the inclusive jet cross section is measured in the pseudorapidity (eta) range 0.1-0.7. The transverse energy (E(sub T)) range of the jets extends from 15 to 440 GeV. The measured cross section is compared with next-to-leading order ...

Doubly differential cross sections for single and multiple ionization of Ar have been measured for 500, 750, and 1000 eV electron impact. The cross sections were measured as a function of projectile energy loss and scattering angle. The energy loss range was 0-85% of the initial projectile energy and scattering angles were between ...

Results are presented for the absolute bremsstrahlung yields at a backward angle of 135� from 53keV electrons on gold targets of thickness ranging from 66to28976?g/cm2 . The target thicknesses range from thin enough for single collision conditions to apply to thick enough for the yield to be dominated by multiple interactions. The results for all thicknesses are found to ...

... of the absolute total cross-sections for the ... studies, and a new crossed ion-supersonic ... molecule beams apparatus, designed to remove the thermal ...

... of the maximal excitation cross sections of the (2)S- and (2)D- levels upon the principal quantum number and the atomic number was established ...

A version of the J-matrix method for solving numerically the three-body Faddeev-Merkuriev differential equations is proposed. This version allows one to take into account the full spectrum of the two-body Coulomb subsystem. As a result, a discrete analog of the Lippmann-Schwinger equation is obtained which allows one to interpret correctly the three-body wave function in ...

Absolute differential cross sections of the $sup 28$Si(p,p')$sup 28$Si* (1.78 MeV) reaction have been measured for 12 scattering angles and at 88 different energies between bombarding energies of 3.0 to 5.2 MeV. In addition, 53 absolute cross sections of the $sup ...

Single ionization of helium by 70.6-eV electron impact is studied in a comprehensive experiment covering a major part of the entire collision kinematics and the full 4? solid angle for the emitted electron. The absolutely normalized triple-differential experimental cross sections are compared with results from the convergent ...

Absolutely calibrated solar images are necessary for a variety of solar physics problems, such as the identification of solar variability sources and the derivation of differential emission measure (DEM) maps. SOHO EIT is absolutely calibrated by using TIMED SEE spectra to provide a method of determining physical values of irradiance ...

Results are presented from a {sup 4}He photodisintegration experiment performed with quasimonochromatic photons using a large solid-angle detector. The tagged-bremsstrahlung technique gave a reliable absolute normalization. In addition, an unambiguous separation of the proton-triton channel from other photodisintegration channels was achieved. A total ...

Absolute differential elastic and vibrational excitation cross sections up to v=11 were measured for CO in scattering angle ranges extending to 180 deg. at energies between 0.2 and 5 eV (and an elastic measurement at 10 eV). The lowest angles were 0 deg. for inelastic scattering and between 5 deg. and 20 deg. for elastic scattering, ...

The chromosomal composition of the Zernokormovaya 169, Istra 1, Ostankinskaya, and Otrastayushchaya 38 cultivars of octoploid partial wheat-wheatgrass hybrids was studied using genomic in situ hybridization (GISH). Differentiation of wheatgrass chromosomes by the distribution of the GISH signal along the chromosome was revealed. The wheatgrass chromosomes of the hybrid ...

Absolute differential and integral cross sections for the ten most intense allowed transitions in atomic oxygen were measured at incident energies between 16.5 and 200 eV. The characterized transitions are the (/sup 3/P ..-->.. /sup 3/S/sup 0/) transition at 1304 A, the (/sup 3/P ..-->.. /sup 3/D/sup 0/) transition at 989 A, the ...

A new method is described for crossed molecular beam measurements of differential cross sections. One of the reagent beams is labeled with a short-lived radioactive isotope, and detection utilizes counting of radioactive disintegrations. It is shown theoretically that for optimal sensitivity in crossed-beam ...

Differential cross sections for charge change resulting from the scattering of 20 MeV /sup 127/I/sup 5 +/ and 20 MeV /sup 35/Cl/sup 4 +/ ions from thin gaseous targets were measured. Total cross sections for multiple electron loss were determined by integration of the differential charge state yields over angle. ...

Antiproton-deuteron (bar pd) scattering is calculated at beam energies below 300 MeV within the Glauber approach, utilizing the amplitudes of the J�lich bar NN models. A good agreement is obtained with available experimental data on upolarized differential and integrated bar pd cross sections. Predictions for polarized total bar pd ...

In this work, we present a joint theoretical and experimental study on electron scattering by C2H4 in the intermediate energy range. Calculated elastic differential, integral, and momentum-transfer as well as total (elastic + inelastic) and absorption cross sections are reported at impact energies ranging from 10 to 500 eV. Also, experimental ...

We present absolute partial electron impact ionization cross sections for propene in the electron energy range between threshold and 1000 eV measured with a two sector field double focussing mass spectrometer. Ion beam profiles have been measured at all electron energies by applying a deflection field method. In combination with a three-dimensional ion ...

The MiniBooNE experiment has recently published a measurement of the CCpi+/CCQE cross section ratio as a function of neutrino energy [1, 2]. In addition, a new event fitter has been developed that allows for the reconstruction of not only the final state muon, but the charged pion as well. By using a new particle identification technique, we are able to distinguish muon and ...

Neutron emission spectra of /sup 10/B and /sup 11/B were measured at 6, 10, and 14.1 MeV and those of /sup 6/Li, /sup 7/Li and carbon at 14.1 MeV using time-of-flight technique. Absolute double differential cross sections were obtained by using scattering from hydrogen as a cross section reference. Integration over ...

l7206 A new counter method has been develoded for measuring pi /sup +/ meson photoproduction near threshold. It has been employed, in particular, to examine the variation with energy of the differential cross section from hydrogen, at laboratory angles of ll5 and 90 deg to the gamma-ray beam of the Glasgow synchrotron. Polythene and carbon ...

A new counter method has been developed for measuring ?+ meson photoproduction near threshold. It has been employed, in particular, to examine the variation with energy of the differential cross section from hydrogen, at laboratory angles of 115� and 90� to the gamma-ray beam of the Glasgow synchrotron. Polythene and carbon targets were used. Results ...

The proton-proton absolute elastic differential cross section, {sigma}{sub pp}({theta}), has been measured at incident proton beam energies of 491.9, 575.5, 641.6, 728.2, and 793.0 MeV at laboratory scattering angles of {approximately}15{degree} to {approximately}42{degree} with a total uncertainty on the order of 1%. The measurements ...

The proton-proton absolute elastic differential cross section, [sigma][sub pp]([theta]), has been measured at incident proton beam energies of 491.9, 575.5, 641.6, 728.2, and 793.0 MeV at laboratory scattering angles of [approximately]15[degree] to [approximately]42[degree] with a total uncertainty on the order of 1%. The measurements ...

The proton-proton absolute elastic differential cross section, [sigma][sub pp]([theta]), has been measured at incident proton beam energies of 491.9, 575.5, 641.6, 728.2, and 793.0 MeV at laboratory scattering angles of [approximately]15[degrees] to [approximately]42[degrees] with a total uncertainty on the order of 1%. The ...

The primary mission of the Neutron Interactions and Dosimetry Group at the National Bureau of Standards (NBS) is the measurement of the standard neutron cross sections. The group has had a long-term program for the measurement of one of the most important of these cross sections---the neutron-induced fission cross section of /sup ...

This thesis deals with experiments on the elastic scattering of Ar, Kr and Xe, using the molecular beam technique. The aim of this work was the measurement of the absolute value of the total cross section and the behaviour of the total cross section, Q, a...

... to-pulse radar cross sections. ... step attenuation values present at the time of measure- ment and calibrated to an absolute cross-section value. ...

The development and initial results of a method for the determination of differential cross sections for electron scattering by molecular oxygen are described. The method has been incorporated into an existing package of computer programs which, given spectroscopic factors, dissociation energies and an energy-loss spectrum for electron-impact excitation, ...

The results of measurements and calculations of absolute cross sections for elastic electron scattering from the 3-hydroxytetrahydrofuran (3hTHF) (C4H8O2) molecule are reported. The measurements were performed using a crossed beam experimental setup, for an incident electron energy range of 40 300 eV and an overall scattering angle ...

A high-statistics sample of charged-current muon neutrino scattering events collected with the MiniBooNE experiment is analyzed to extract the first measurement of the double differential cross section (d{sup 2}{sigma}/dT{sub {mu}}d cos {theta}{sub {mu}}) for charged-current quasielastic (CCQE) scattering on carbon. This result features minimal model ...

Using a high statistics sample of muon neutrino charged current quasielastic (CCQE) events, we report the first measurement of the double differential cross section (d{sup 2}{sigma}/dT{sub {mu}}d cos {theta}{sub {mu}}) for this process. The result features reduced model dependence and supplies the most complete information on neutrino CCQE scattering to ...

Electron impact excitation from the v=0 level of the ground X 1S+ state to the v'=0, 1, 2, 3, 4 and 5 vibrational levels of the a3? valence state of the carbon-monoxide molecule has been revisited in the energy region from threshold to 9,7 eV. A crossed beam double trochoidal electron spectrometer is used. Forward and backward scattered electrons from the v'=0 of the a3? ...

Using a high statistics sample of muon neutrino charged current quasielastic (CCQE) events, we report the first measurement of the double differential cross section ((d{sup 2}sigma/dT{sub m}udcos theta{sub m}u)) for this process. The result features reduced model dependence and supplies the most complete information on neutrino CCQE scattering to date. ...

Using a high statistics sample of muon neutrino charged current quasielastic (CCQE) events, we report the first measurement of the double differential cross section ((d{sup 2}{sigma}/dT{sub {mu}}dcos {theta}{sub {mu}})) for this Process. The result features reduced model dependence and supplies the most complete information on neutrino CCQE scattering to ...

A new method to compute fully differential double photoionization cross sections of atoms has been devised and fully developed for two-electron systems. The method exploits the Green function for two noninteracting electrons in the field of a nuclear charge to infer the effects of the residual potential projected on a set of L(2)-basis functions. Test ...

The triple-differential cross sections for the ionization of Kr(4p) and Xe(5p) by a fast electron where the exiting electrons have energies of 20 eV and 1 keV have been measured and compared with distorted-wave Born calculations. Difficulties were encountered when trying to place the relative data on an absolute scale by extrapolation ...

On the basis of a model-independent S-matrix approach, the differential cross sections for elastic {sup 4}He-{sup 90}Zr, {sup 16}O-{sup 12}C, and {sup 16}O-{sup 16}O scattering at energies of projectile nuclei in the range 13-30 MeV per nucleon are analyzed by using an evolution algorithm. In each of the cases considered in this analysis, the resulting ...

Absolute doubly differential cross sections for the ionization of atomic hydrogen by electron impact have been measured at energies ranging from near threshold to intermediate values. The measurements are normalized to the accurate differential cross section for the electron-impact excitation ...

This paper reports measurements of absolute scattering cross sections, differential in angle, for collisions of ground state oxygen atoms with He, N{sub 2}, and O{sub 2}. Data are presented for scattering of 0.5-, 1.5-, and 5.0-keV oxygen atome projectiles in the range of laboratory frame angles between 0.06{degree} and 5{degree}. ...

The differential cross sections for N/sup 14/(d,p)N/sup 15/ are calculated for the case in which the 2S level of N/sup 15/ is formed. A variational method is applied and the angular distribution of the emerging protons is calculated by the Born first approximation for four values of the range of the Yukawa potential. The proton-target nucleus ...

absolute_tolerance : Ordinary Differential Equations � absolute_tolerance : Quadrature � add_left : Collocation Weights � add_right : Collocation Weights ...

Identify absolute extrema and local extrema given the graph of a function and find the absolute extrema of a continuous function on a (bounded) closed interval.

... 1, . . ., s sub p. Using Kuranishi's infinite analytic mappings, the last non-zero integer among s sub o, s sub 1, . . . s sub p is an absolute invariant. ...

... Electron Impact Ionization I April 1994 ... Quantitative Monitoring of Ammonia and Hydrazines: Absolute Cross Sections for Electron Impact Ionization ...

... Title : Lower Limits on the Absolute Dissociative Electron Attachment Cross Section from O2 Condensed on Rare-Gas Films. ...

... has been used to measure the absolute total electron-helium-atom scattering cross ... with increasing energy to a minimum of about 10% below the ...

Absolute differential cross sections (DCS's) for electron-impact excitation of the lowest forty electronic levels in atomic neon have been determined for incident electron energies of 30 and 50 eV, for the four lowest levels at 25 eV, and two levels at 100 eV. The cross sections for these forty electronic ...

We present a joint theoretical-experimental study on electron scattering by propane (C{sub 3}H{sub 8}) in the low- and intermediate-energy ranges. Calculated elastic differential, integral, and momentum transfer as well as total (elastic + inelastic) and total absorption cross sections are reported for impact energies ranging from 2 to 500 eV. Also, ...

We present a joint theoretical-experimental study on electron scattering by propane (C3H8) in the low- and intermediate-energy ranges. Calculated elastic differential, integral, and momentum transfer as well as total (elastic + inelastic) and total absorption cross sections are reported for impact energies ranging from 2 to 500 eV. Also, experimental ...

We present a joint theoretical-experimental study on electron scattering by C2H2 in the intermediate energy range. We report calculated elastic differential, integral, and momentum-transfer as well as total (elastic + inelastic) and absorption cross-sections at impact energies ranging from 10 to 500 eV. Also, experimental absolute ...

We present a joint theoretical-experimental study on electron scattering by ethane (C2H6) in the low- and intermediate-energy ranges. Calculated elastic differential, integral and momentum transfer as well as total (elastic + inelastic) and total absorption cross sections are reported for impact energies ranging from 1 to 500 eV. Also, experimental ...

Absolute calibration of small-angle scattering (SAS) intensity data (measured in terms of the differential scattering cross section per unit sample volume per unit solid angle) is essential for many important aspects of quantitative SAS analysis, such as obtaining the number density, volume fraction, and specific surface area of the ...

Absolute calibration of small-angle scattering (SAS) intensity data (measured in terms of the differential scattering cross section per unit sample volume per unit solid angle) is essential for many important aspects of quantitative SAS analysis, such as obtaining the number density, volume fraction, and specific surface area of the ...

The cross-section of the 6Li(n,t)4He reaction has been adopted as a standard neutron cross-section from thermal energy to 100 keV. In the MeV neutron energy region, however, there are large discrepancies among the existing data including experimental and evaluated ones. For example, at 1.0 MeV, the cross section of the 6Li(n,t)4He ...