Development of an active detector for the characterization of the late-time radiation environment from a reactor pulse
- Applied Nuclear Technologies, Sandia National Laboratories, Mail Stop 1146, P.O. Box 5800, Albuquerque, NM 87185-1146 (United States)
- Nuclear Facility Operations, Sandia National Laboratories, Mail Stop 0614, P.O. Box 5800, Albuquerque, NM 87185-1146 (United States)
- Applied Nuclear Technologies, Sandia National Laboratories, Mail Stop 0982, P.O. Box 5800, Albuquerque, NM 87185-0982 (United States)
- Advanced Nuclear Concepts, Sandia National Laboratories, Mail Stop 1143, P.O. Box 5800, Albuquerque, NM 87185-1143 (United States)
- Computational Engineering Analysis LLC, Albuquerque, NM 87111 (United States)
Document available in abstract form only, full text of document follows: This paper discusses the use of a commercially available {sup 235}U fission chamber, with a matching compensating ion chamber, originally sold as a single-ended detector with the signal conducted over the shield of a coaxial cable. The authors designed an aluminum housing that isolates the two detectors and converts the signals to full differential mode as a noise-reduction technique. The signals are processed using the switched resistor technique to extend the signal range to longer times from the peak of the pulse [Luker, S. M., Griffin, P. J., King, D. B., and Suo-Anttila, A. J., 'Improved Diagnostics for Analysis of a Reactor Pulse Radiation Environment,' 13. International Symposium on Reactor Dosimetry, Akersloot, Netherlands, May 25, 2008, pp. 4-6.]. The newly configured fission chamber assembly has been used at the annular core research reactor at Sandia National Laboratories to provide a high-fidelity characterization of the neutron time profile from a pulsed operation. (authors)
- Research Organization:
- American Society for Testing and Materials - ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA, 19428-2959 (United States); European Working Group on Reactor Dosimetry - EWGRD, SCK.CEN, Mol (Belgium)
- OSTI ID:
- 22086992
- Report Number(s):
- INIS-US-13-ISRD-14-P2-18; TRN: US13V0065045439
- Resource Relation:
- Conference: ISRD-14: 14. International Symposium on Reactor Dosimetry, Bretton Woods, NH (United States), 22-27 May 2011; Other Information: Country of input: France
- Country of Publication:
- United States
- Language:
- English
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