Calibration of a time-resolved hard-x-ray detector using radioactive sources

Journal Article · Tue Nov 15 00:00:00 EST 2016 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4960599· OSTI ID:22596505

Theobald, W.; Regan, S. P.; Romanofsky, M. H. ^[1]

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1. Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623-1299 (United States)

A four-channel, time-resolved, hard x-ray detector (HXRD) has been operating at the Laboratory for Laser Energetics for more than a decade. The slope temperature of the hot-electron population in direct-drive inertial confinement fusion experiments is inferred by recording the hard x-ray radiation generated in the interaction of the electrons with the target. Measuring the energy deposited by hot electrons requires an absolute calibration of the hard x-ray detector. A novel method to obtain an absolute calibration of the HXRD using single photons from radioactive sources was developed, which uses a thermoelectrically cooled, low-noise, charge-sensitive amplifier.

• OSTI ID: 22596505
• Journal Information: Review of Scientific Instruments, Vol. 87, Issue 11; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
AMPLIFIERS
CALIBRATION
DEPOSITS
ELECTRONS
HARD X RADIATION
INERTIAL CONFINEMENT
INTERACTIONS
LASERS
NOISE
PHOTONS
RADIATION SOURCES
TIME RESOLUTION
X-RAY DETECTION