High Power Laser Science and Engineering, 2015, 3 (4): 04000001, Published Online: Jan. 7, 2016
The application of proton spectrometers at the SG-III facility for ICF implosion areal density diagnostics 
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areal density diagnostics areal density diagnostics CR39 detector CR39 detector SRF proton spectrometer SRF proton spectrometer WRF proton spectrometer WRF proton spectrometer
Abstract
Charged particle diagnostics is one of the required techniques for implosion areal density diagnostics at the SG-III facility. Several proton spectrometers are under development, and some preliminary areal density diagnostics have been carried out. The response of the key detector, CR39, to charged particles was investigated in detail. A new track profile simulation code based on a semi-empirical model was developed. The energy response of the CR39 detector was calibrated with the accelerator protons and alphas from a 241Am source. A proton spectrometer based on the filtered CR39 detector was developed, and D–D primary proton measurements were implemented. A step range filter spectrometer was developed, and preliminary areal density diagnostics was carried out. A wedged range filter spectrometer array made of Si with a higher resolution was designed and developed at the SG-III facility. A particle response simulation code by the Monte Carlo method and a spectra unfolding code were developed. The capability was evaluated in detail by simulations.
Xing Zhan, Jianhua Zheng, Ji Yan, Zhenghua Yang, Ming Su, Yudong Pu, Pin Yang, Xufei Xi, Li Chen, Ming Chen, Tianxuan Huang, Shao’en Jiang, Shenye Liu, Jiamin Yang. The application of proton spectrometers at the SG-III facility for ICF implosion areal density diagnostics[J]. High Power Laser Science and Engineering, 2015, 3(4): 04000001.
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