Development of soft X-ray energy spectrometer on Shenguang Ⅱ-up equipment

Lifei, 侯立飞 Hou; Jun, 黎军 Li; Huabing, 杜华冰 Du; Yanli, 崔延莉 Cui; Tianming, 宋天明 Song; Minxi, 韦敏习 Wei; Yimeng, 杨轶濛 Yang; Sanwei, 李三伟 Li; Rongqing, 易荣清 Yi; Tao, 易涛 Yi; Guohong, 杨国洪 Yang; Shenye, 刘慎业 Liu; Shaoen, 江少恩 Jiang

doi:10.3788/hplpb20132512.3139

强激光与粒子束

2013

DOI: 10.3788/hplpb20132512.3139

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Development of soft X-ray energy spectrometer on Shenguang Ⅱ-up equipment

侯立飞 Hou Lifei¹,

黎军 Li Jun²,

杜华冰 Du Huabing³

et al.

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A Novel Recovery Method of Soft X-ray Spectrum Unfolding Based on Compressive Sensing

Xia

Huang

et al. 2018

Sensors

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In the experiment of inertial confinement fusion, soft X-ray spectrum unfolding can provide important information to optimize the design of the laser and target. As the laser beams increase, there are limited locations for installing detection channels to obtain measurements, and the soft X-ray spectrum can be difficult to recover. In this paper, a novel recovery method of soft X-ray spectrum unfolding based on compressive sensing is proposed, in which (1) the spectrum recovery is formulated as a problem of accurate signal recovery from very few measurements (i.e., compressive sensing), and (2) the proper basis atoms are selected adaptively over a Legendre orthogonal basis dictionary with a large size and Lasso regression in the sense of ℓ1 norm, which enables the spectrum to be accurately recovered with little measured data from the limited detection channels. Finally, the presented approach is validated with experimental data. The results show that it can still achieve comparable accuracy from only 8 spectrometer detection channels as it has previously done from 14 detection channels. This means that the presented approach is capable of recovering spectrum from the data of limited detection channels, and it can be used to save more space for other detectors.

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A Novel Recovery Method of Soft X-ray Spectrum Unfolding Based on Compressive Sensing

Xia

Huang

et al. 2018

Sensors

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show abstract

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Development of soft X-ray energy spectrometer on Shenguang Ⅱ-up equipment

Cited by 1 publication

References 0 publications

A Novel Recovery Method of Soft X-ray Spectrum Unfolding Based on Compressive Sensing

A Novel Recovery Method of Soft X-ray Spectrum Unfolding Based on Compressive Sensing

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