Published July 1990
| Version v1
Journal article
In situ calibration of TFTR neutron detectors
Creators
- 1. Princeton Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08543 (USA)
Description
We report results of the TFTR fission detector calibration performed in December 1988. A NBS-traceable, remotely controlled 252Cf neutron source was moved toroidally through the TFTR vacuum vessel. Detection efficiencies for two 235U detectors were measured for 930 locations of the neutron point source in toroidal scans at 16 different major radii and vertical heights. These scans effectively simulated the volume-distributed plasma neutron source and the volume-integrated detection efficiency was found to be insensitive to plasma position. The Campbell mode is useful due to its large overlap with the count rate mode and large dynamic range. The resulting absolute plasma neutron source calibration has an uncertainty of ±13%
Additional details
Publishing Information
- Journal Title
- Review of Scientific Instruments
- Journal Volume
- 61
- Journal Issue
- 7
- Series
- Rev. Sci. Instrum.
- Journal Page Range
- 1900-1914
- ISSN
- 0034-6748
- CODEN
- RSINA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 21073519
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY; S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
- Descriptors DEI
- CALIBRATION; ERRORS; NEUTRON DETECTORS; NEUTRON SOURCES; POSITION SENSITIVE DETECTORS; TFTR TOKAMAK
- Descriptors DEC
- CLOSED PLASMA DEVICES; MEASURING INSTRUMENTS; PARTICLE SOURCES; RADIATION DETECTORS; RADIATION SOURCES; THERMONUCLEAR DEVICES; TOKAMAK DEVICES