Conceptual Design of a High-flux Multi-GeV Gamma-ray Spectrometer

被引：13
|
作者：
Fleck, K. [1 ]
Cavanagh, N. [1 ]
Sarri, G. [1 ]
机构：
[1] Queens Univ Belfast, Sch Math & Phys, Belfast BT7 1NN, Antrim, North Ireland
来源：
SCIENTIFIC REPORTS | 2020年 / 10卷 / 01期
基金：
英国工程与自然科学研究理事会;
关键词：
D O I：
10.1038/s41598-020-66832-x
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
We present here a novel scheme for the high-resolution spectrometry of high-flux gamma-ray beams with energies per photon in the multi-GeV range. The spectrometer relies on the conversion of the gamma-ray photons into electron-positron pairs in a solid foil with high atomic number. The measured electron and positron spectra are then used to reconstruct the spectrum of the gamma-ray beam. The performance of the spectrometer has been numerically tested against the predicted photon spectra expected from non-linear Compton scattering in the proposed LUXE experiment, showing high fidelity in identifying distinctive features such as Compton edges and non-linearities.
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页数：7
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