A scintillator attenuation spectrometer for intense gamma-rays

E Liang; K Q Zheng; K Yao; W Lo; H Hasson; A Zhang; M Burns; W H Wong; Y Zhang; A Dashko; H Quevedo; T Ditmire; G Dyer

doi:10.1063/5.0082131

A scintillator attenuation spectrometer for intense gamma-rays

Rev Sci Instrum. 2022 Jun 1;93(6):063103. doi: 10.1063/5.0082131.

Authors

E Liang¹, K Q Zheng¹, K Yao², W Lo¹, H Hasson³, A Zhang², M Burns¹, W H Wong⁴, Y Zhang⁴, A Dashko⁵, H Quevedo⁵, T Ditmire⁵, G Dyer⁶

Affiliations

¹ Physics and Astronomy Department, Rice University, Houston, Texas 77005, USA.
² Division of Physics, Mathematics and Astronomy, California Institute of Technology, Pasadena, California 91125, USA.
³ Physics Department, University of Rochester, Rochester, New York 14627, USA.
⁴ M.D. Anderson Cancer Center, Diagnostic Imaging Division, Houston, Texas 77005, USA.
⁵ High Energy Density Science Center, University of Texas at Austin, Austin, Texas 78712, USA.
⁶ SLAC National Accelerator Laboratory, Linac Coherent Light Source, Menlo Park, California 94025, USA.

PMID: 35777994
DOI: 10.1063/5.0082131

Abstract

A new type of compact high-resolution high-sensitivity gamma-ray spectrometer for short-pulse intense gamma-rays (250 keV to 50 MeV) has been developed by combining the principles of scintillators and attenuation spectrometers. The first prototype of this scintillator attenuation spectrometer (SAS) was tested successfully in Trident laser experiments at LANL. Later versions have been used extensively in the Texas Petawatt laser experiments in Austin, TX, and more recently in OMEGA-EP laser experiments at LLE, Rochester, NY. The SAS is particularly useful for high-repetition-rate laser applications. Here, we give a concise description of the design principles, capabilities, and sample preliminary results of the SAS.