Absolute calibration of TFTR helium proportional counters (abstract)[sup a]

Journal Article · Sun Jan 01 04:00:00 EST 1995 · Review of Scientific Instruments; (United States)

DOI:https://doi.org/10.1063/1.1146198· OSTI ID:6689604

Strachan, J D; Barnes, C W; Diesso, M; Jassby, D; Johnson, L; Loughlin, M; McCauley, S; Munsat, T; Roquemore, A L ^[1]

---

1. Princeton Plasma Physics Laboratory, P.O. Box 451, Princeton, New Jersey 08543 (United States)

The TFTR helium proportional counters are located in the central five (5) channels of the TFTR multichannel neutron collimator. These detectors were absolutely calibrated using a 14 MeV neutron generator positioned at the horizontal midplane of the TFTR vacuum vessel. The neutron generator position was scanned in centimeter steps to determine the collimator aperture width to 14 MeV neutrons and the absolute sensitivity of each channel. Neutron profiles were measured for TFTR plasmas with time resolution between 5 and 50 ms depending upon count rates. The He detectors were used to measure the burnup of 1 MeV tritons in deuterium plasmas, the transport of tritium in trace tritium experiments, and the residual tritium levels in plasmas following 50:50 DT experiments.

• DOE Contract Number: AC02-76CH03073
• OSTI ID: 6689604
• Journal Information: Review of Scientific Instruments; (United States), Journal Name: Review of Scientific Instruments; (United States) Vol. 66:1; ISSN 0034-6748; ISSN RSINAK
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700320* -- Plasma Diagnostic Techniques & Instrumentation-- (1992-)
700412 -- Magnetic Confinement Devices-- (1992-)
CALIBRATION
CLOSED PLASMA DEVICES
COLLIMATORS
EMISSION
HE-3 COUNTERS
MEASURING INSTRUMENTS
NEUTRON DETECTORS
NEUTRON EMISSION
PLASMA DIAGNOSTICS
PROPORTIONAL COUNTERS
RADIATION DETECTORS
TFTR TOKAMAK
THERMONUCLEAR DEVICES
TOKAMAK DEVICES