Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Design and Test of a RadOptic Detector Optimized for Pulsed MeV Gamma Rays

Not Accessible

Your library or personal account may give you access

Abstract

A RadOptic detector, which was optimized to respond to MeV pulses utilizing bulk semiconductors and an interferometer method, was reported. The interferometer in the detector consisted of a C-band, continuous-wave, narrow-bandwidth laser, single-mode fibers and a bulk semiconductor. The instantaneous refractive index change induced by a MeV pulse was recorded in one shot by an optic-electrical detector. The relationship between the gamma pulse and the detector output pattern was theoretically deduced and experimentally tested with incident MeV pulses. The pulsed gamma source had a 0.8 MeV (max) energy and 60 ns duration. The detector with an intrinsic GaAs sample, whose recombination time was approximately 0.6 ns, as measured by double photon absorption, was an impulsive detector, demonstrating a pattern the output represents the gamma-pulse strength. The detector with an intrinsic InP sample (a recombination time of approximately 1000 ns) was an integral detector, and the differential of the output pattern was consistent with the gamma pulse. A long-distance (~ 1 km) and high temporal resolution (better than 2 ns) detector for MeV pulses was created in this work.

© 2018 The Author(s)

PDF Article
More Like This
Path to 100 fs multi-MeV gamma rays from extremely brilliant Compton sources

Trevor Reutershan, Yoonwoo Hwang, Haytham H. Effarah, and Christopher P. J. Barty
P1.4 Ultrafast Optics (UFO) 2023

Production of tens-of-MeV Compton gamma-rays from a 2 GeV laser-plasma electron accelerator

J. M. Shaw, A. C. Bernstein, Y. Y. Chang, R. Zgadzaj, A. Hannasch, K. Weichmann, J. Welch, M. LaBerge, W. Henderson, H.E. Tsai, N. Fazel, X. Wang, T. Ditmire, M. Donovan, G. Dyer, E. Gaul, J. Gordon, M. Martinez, M. Spinks, T. Toncian, and M. C. Downer
FTh3M.1 CLEO: QELS_Fundamental Science (CLEO:FS) 2016

Schemes of High-Order Pulse Modulations for Gamma-Gamma Channel Free-Space Optical Communication

Meiyong Xu, Kaimin Wang, Sijie Huang, You Yong, Xiongfei Fan, and Xiangjun Xin
Su2A.245 Asia Communications and Photonics Conference (ACP) 2018

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved