Fast Scintillation Probes For Investigation Of Pulsed Neutron Radiation From Small Fusion Devices
- ACS Ltd., Advanced Diagnostics Laboratory, Hery 23 St., 01-497 Warsaw (Poland)
This paper presents the design as well as laboratory/performance tests results taken by means of the fast scintillation probes. The design of each scintillation probe is based on photomultiplier tube hybrid assembly, which--besides photomultiplier itself--also includes high-voltage divider optimized for recording of fast radiation bursts. Plastic scintillators with short-time response are applied as hard X-ray and neutron radiation detectors. Heavy-duty probe's housing provides efficient shielding against electromagnetic interference and allows carrying out pulsed neutron measurements in a harsh electromagnetic environment. The crucial parameters of scintillation probes have been examined during laboratory tests in which our investigations have been aimed mainly to determine: a time response, an anode radiant sensitivity and an electron transit time dependence on high-voltage supply. During the performance tests, the relative calibration of probes set has been done. It allowed to carry out very accurate measurements of neutron emission anisotropy and investigations of neutron radiation scattering by different materials. The usefulness of presented scintillation probes - embedded in the neutron time-of-flight diagnostic system was proven during experimental campaigns conducted on the plasma-focus PF1000 device.
- OSTI ID:
- 21137045
- Journal Information:
- AIP Conference Proceedings, Vol. 996, Issue 1; Conference: 17. IAEA technical meeting on research using small fusion devices, Lisbon (Portugal), 22-24 Oct 2007; Other Information: DOI: 10.1063/1.2917036; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CALIBRATION
ELECTRONS
HARD X RADIATION
MAGNETOHYDRODYNAMICS
NEUTRON EMISSION
NEUTRON SOURCES
NEUTRONS
PHOTOMULTIPLIERS
PLASMA
PLASMA FOCUS
PLASTIC SCINTILLATORS
PROBES
RADIATION DETECTORS
SCATTERING
SCINTILLATIONS
SENSITIVITY
THERMONUCLEAR DEVICES
TIME-OF-FLIGHT METHOD