... METHODOLOGY, VIBRATION, HIGH RATE, FATIGUE LIFE, PERFORMANCE ... STRUCTURAL PROPERTIES, ACCELERATION, EXCITATION ...

The principal goal of this project was to develop a tunable dielectric loaded accelerator (DLA) to allow one to adjust the phase velocity of the DLA after it has been assembled into its final form.

A charged particle accelerating assembly provided with a predetermined ratio of parametric structural characteristics and with related operating voltages applied to each of its linearly spaced focusing and accelerating quadrupoles, thereby to maintain a particle beam traversing the electrostatic fields of the ...

Some of the concepts for orchestrating large numbers of events associated with accelerator assembly and characterization include: (1) structuring of activity into smaller workable and trackable packages, with associated subelements assigned to each section of the accelerator. (2) establishing detailed ...

Assembly Drawing AD-756-082-00-R0 and the referenced drawings and specifications on the series of drawings provide the information and specifications for constructing a typical support structure for a typical SLAC 10 ft. disc loaded waveguide accelerator section. This support assembly is supported in turn by a 2 ...

The dielectric wall accelerator (DWA) is a compact induction accelerator structure that incorporates the accelerating mechanism, pulse forming structure, and switch structure into an integrated module. The DWA consists of stacked stripline Blumlein ...

We describe the operating principles, design, fabrication, assembly, and bench-test of a miniature planar dielectric traveling-wave accelerator structure made from dielectric brazed to oxygen-free electronic grade (OFE) copper. This work focuses on alumina ceramic (AL995) and diamond as dielectrics. This two-port device is matched to ...

This thesis evaluates different assembly methods for particle accelerator called Compact Linear Colliders(CLIC) accelerating components. This work focuses on the definition of a strategy and mechanical design for the assembly of four quadrants in radial and longitudinal direction. The study takes into account the ...

A study was conducted to examine different possible designs for an ion source and accelerator assembly, suitable for operating in space. Such an assembly could serve to treat products in space such as the surfaces of space structures eroded by micrometeor...

The design of the prototype 120-keV, 65-A, 0.5-sec ion accelerator for TFTR-type beam systems is described. Details of the manufacture of the constituent parts are given along with descriptions of the major components of the accelerator. Included are the molybdenum grid structures, molybdenum shields, stainless steel hats and the epoxy ...

... ACCELERATORS, NEUTRON FLUX), NEUTRON ... REACTIONS, REACTOR CORES, ELECTRON ... ELECTRON IRRADIATION, MEASUREMENT. ...

A radar absorbing material, CMS-184, and assemblies bonded with two silicone based structural adhesives, DC-577 and RTV-630, were subjected to limited accelerated aging conditions and then evaluated for degradation of mechanical properties and adhesion, r...

... structural Interface Joints on admissles, but to assemble In one documft., ... Or, ueparation and assembly Joints may be Integrated Into one structural ...

This paper will demonstrate the application of model validation techniques to a transient structural dynamics problem. The problem of interest is the propagation of an explosive shock through a complex threaded joint that is a surrogate model of a system assembly. The objective is to validate the computational modeling of the key mechanical phenomena in ...

This report documents structural analysis of the Accelerator Production of Tritium Low Energy Demonstration Accelerator (APT/LEDA) Radio Frequency Quadrupole (RFQ) accelerator structure and its associated support frame. This work was conducted for the Department of Energy in support of the ...

... INDUCTION SYSTEMS, *ELECTRON ACCELERATORS, *PARTICLE ACCELERATORS, IMPEDANCE, BETATRONS, NUCLEAR STRUCTURE. ...

The US LHC Accelerator Research Program (LARP) is developing Nb{sub 3}Sn accelerator magnet technology for the LHC luminosity upgrade. Two 90 mm 'Technology Quadrupole' models (TQS01, TQC01) are being developed in close collaboration between LBNL and FNAL, using identical coil design, but two different support ...

A teleoperated robot was used to assemble the Experimental Assembly of Structures in Extra-vehicular

... Title : Assembly and Functionalization of Supramolecular Structures Studied by ... concentration is called the CMC or critical micellar concentration. ...

During cotranslational protein targeting by the Signal Recognition Particle (SRP), the correct cargo accelerates stable complex assembly between the SRP and SRP receptor (FtsY) by several orders of magnitude, thus enabling rapid and faithful cargo delivery to the target membrane. The molecular mechanism underlying this cargo-induced rate ...

The Fusion Materials Irradiation Test (FMIT) accelerator will supply the neutron flux required for studying materials that may be used in a fusion environment. The diagnostic measurement instrumentation, which will characterize the accelerator beam, must be noninterceptive because of the beam's power density. Instrumentation also must be fully ...

Construction of the CEBAF (Continuous Electron Beam Accelerator Facility) recirculating linac represents the largest scale application of superconducting RF (SRF) technology to date. The accelerating structures in CEBAF are 169 pairs of 1.5 GHz SRF five-cell cavities-9 pairs in an injector and 80 pairs each in two linacs. Commissioning ...

In the program of work directed towards the development of an X-Band Next Linear Collider accelerator structure, two different test accelerator sections have been completed, and a third is being fabricated. The first is a simple 30-cell constant-impedance section in which no special attention was given to surface finish, pumping, and ...

Millimeter-wave rf cavities for use in linear accelerators, free-electron lasers, and mm-wave undulatory are under development at Argonne National Laboratory. Typical cavity dimensions are in the 1000 mm range, and the overall length of the accelerator structure, which consists of 30-100 cavities, is about 50-100 mm. An accuracy of ...

To develop and demonstrate the crucial front end of the APT accelerator and some of the critical components for APT, Los Alamos is building a CW proton accelerator (LEDA) to provide 100 mA at up to 40 MeV. LEDA will be installed where the SDI-sponsored Ground Test Accelerator was located. The first accelerating ...

The ALICE Inner Tracking System is designed to provide the determination of the primary vertex and of the secondary vertices in order to reconstruct charm and hyperon decays, particle identification and tracking of low-momentum particles and to improve the momentum and angle measurements of the Time Projecting Chamber (TPC). The device consists of six layers of silicon detectors and has been ...

The details of the manufacturing processes used to fabricate a vacuum tight Alumina to Titanium brazed rectangular insulator structure are presented. The specifics of component cleaning procedures are given and the brazing cycle chosen is described. General precautions and techniques that should be used for similar applications are discussed. The insulator ...

As a joint effort in the JLC/NLC research program, the authors have developed a new type of damped detuned accelerator structure with optimized round-shaped cavities (RDDS). This paper discusses some important R and D aspects of the first structure in this series (RDDS1). The design aspects covered are the cell design with sub-MHz ...