X-ray bang-time and fusion reaction history at picosecond resolution using RadOptic detection

Journal Article · Mon Oct 15 00:00:00 EDT 2012 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4729677· OSTI ID:22093804

Vernon, S. P.; Lowry, M. E.; Baker, K. L.; Bennett, C. V.; Celeste, J. R.; Cerjan, C.; Haynes, S.; Hernandez, V. J.; Hsing, W. W.; LaCaille, G. A.; London, R. A.; Moran, B.; Schach von Wittenau, A.; Steele, P. T.; Stewart, R. E. ^[1]

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1. Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808 (United States)

We report recent progress in the development of RadOptic detectors, radiation to optical converters, that rely upon x-ray absorption induced modulation of the optical refractive index of a semiconductor sensor medium to amplitude modulate an optical probe beam. The sensor temporal response is determined by the dynamics of the electron-hole pair creation and subsequent relaxation in the sensor medium. Response times of a few ps have been demonstrated in a series of experiments conducted at the LLNL Jupiter Laser Facility (JLF). This technology will enable x-ray bang-time and fusion burn-history measurements with {approx} ps resolution.

• OSTI ID: 22093804
• Journal Information: Review of Scientific Instruments, Vol. 83, Issue 10; Other Information: (c) 2012 American Institute of Physics; 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
ABSORPTION
AMPLITUDES
BEAMS
LASER RADIATION
LAWRENCE LIVERMORE NATIONAL LABORATORY
MODULATION
PAIR PRODUCTION
REFRACTIVE INDEX
RELAXATION
SEMICONDUCTOR DETECTORS
SEMICONDUCTOR MATERIALS
X RADIATION
X-RAY DETECTION