A flexible, on-line magnetic spectrometer for ultra-intense laser produced fast electron measurement

Ge, Xulei and Yuan, Xiaohui and Yang, Su and Deng, Yanqing and Wei, Wenqing and Fang, Yuan and Gao, Jian and Liu, Feng and Chen, Min and Zhao, Li and Ma, Yanyun and Sheng, Zhengming and Zhang, Jie (2018) A flexible, on-line magnetic spectrometer for ultra-intense laser produced fast electron measurement. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 887. pp. 54-58. ISSN 0168-9002

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    Abstract

    We have developed an on-line magnetic spectrometer to measure energy distributions of fast electrons generated from ultra-intense laser-solid interactions. The spectrometer consists of a sheet of plastic scintillator, a bundle of non-scintillating plastic fibers, and an sCMOS camera recording system. The design advantages include on-line capturing ability, versatility of detection arrangement, and resistance to harsh in-chamber environment. The validity of the instrument was tested experimentally. This spectrometer can be applied to the characterization of fast electron source for understanding fundamental laser-plasma interaction physics and to the optimization of high-repetition-rate laser-driven applications.