A thin-foil Faraday collector as a radiation-hard, high fluence charged particle spectrometer
- Colorado School of Mines, Golden, CO (United States)
- Sandia National Labs., Albuquerque, NM (United States)
- JET Joint Undertaking, Abingdon (United Kingdom); and others
The authors have developed a radiation-hard, charged particle spectrometer, consisting of thin parallel conducting foils as current collectors. Prototype detectors have been tested in accelerator bombardments and at the fusion plasma facilities TFTR and JET. In the case of the accelerator bombardments, a detector consisting of 6 Al foils, each of thickness about 6 {micro}m, demonstrated an energy resolution of about 7% for 7 MeV alpha particles. The prototype tested immediately outside TFTR demonstrated the expected insensitivity to moderately high levels of fast neutrons and hard gamma rays. The prototype tested inside JET similarly indicated operational capability at elevated temperatures as a lost alpha particle detector for d-t tokamak fusion plasmas. The robustness and moderately good energy resolution of these detectors should permit the application to tasks such as the first wall measurement of lost alpha particles from tokamak fusion plasmas, the real time measurement of light ion fission fragments from fission reactor experiments and the in-beam measurement of accelerator beam energies as a control diagnostic.
- Research Organization:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Colorado School of Mines, Golden, CO (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research, Washington, DC (United States)
- DOE Contract Number:
- AC04-94AL85000; FG03-95ER54303
- OSTI ID:
- 510406
- Report Number(s):
- SAND-97-1654C; CONF-9705133-1; ON: DE97007129; TRN: 97:014538
- Resource Relation:
- Conference: Nuclear data for science and technology Trieste 1997, Trieste (France), 18-22 May 1997; Other Information: PBD: [1997]
- Country of Publication:
- United States
- Language:
- English
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