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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Gilpatrick, J. D. Sherwood, B. A. Hahn, J. Chamberlin, D. D. |
| Copyright Year | 1963 |
| Abstract | The Fusion Materials Irradiation Test (FMIT) accelerator will provide an intense deuteron beam at 35 MeV (ß = 0.19). The beam, following a stripping reaction on a lithium target, 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 functional for start up of the FMIT accelerator. To this end, a test facility was needed to examine signals from diagnostic probes that sense electromagnetic fields emanating from the charged particle beam. The test facility also will help evaluate the probes' corresponding measurement systems before final assembly into the beamline. Three types of test facility were proposed: (1) a low-energy electron accelerator, (2) a large "electron-gun assembly," and (3) a coaxial structure that produces electromagnetic fields similar to that of the proposed FMIT accelerator. The third type was chosen because the design and fabrication could be done at Los Alamos and Types (1) and (2) would be more costly. The coaxial structure can carry the impulse currents required but cannot model the FMIT accelerator charged-particle bunch velocities accurately. However, one may introduce a highly resistive dielectric material into the coaxial test fixture so that its electromagnetic-wave velocities match those of the accelerator's particle-bunch velocities. This paper describes the design and some experimental results of the coaxial test fixture. |
| Sponsorship | IEEE Nuclear and Plasma Sciences Society Computer Applications in Nuclear and Plasma Sciences (CANPS) Lawrence Berkeley Lab. Lawrence Livermore Nat. Lab. APS College of William and Mary Continuous Electron Beam Accelerator Facility NASA Defence Nuclear Agency Sandia National Laboratories Jet Propulsion Laboratory Brookhaven Nat. Lab. Lawrence Livermore Nat. Lab IEEE/NPPS Radiat. Effects Committee Defence Nuclear Agency/DoD Sandia National Laboratories/DOE Jet Propulsion Laboratory/NASA Phillips Lab./DoD |
| Starting Page | 2256 |
| Ending Page | 2258 |
| Page Count | 3 |
| File Size | 2173175 |
| File Format | |
| ISSN | 00189499 |
| Volume Number | 30 |
| Issue Number | 4 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1983-08-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Fixtures Particle beams Coaxial components Life estimation Test facilities Materials testing Electromagnetic measurements Instruments Particle beam measurements Particle accelerators |
| Content Type | Text |
| Resource Type | Article |
| Subject | Nuclear and High Energy Physics Electrical and Electronic Engineering Nuclear Energy and Engineering |
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