Weighting method to improve recovery ratio of radiation flux for flat response X-ray diffraction

Tianming, 宋天明 Song; Jiamin, 杨家敏 Yang; Rongqing, 易荣清 Yi; Zhichao, 李志超 Li; Yongteng, 袁永腾 Yuan; Sanwei, 李三伟 Li

doi:10.3788/hplpb20122408.1887

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2013

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“…Five flat-response X-ray diodes (FXRDs) are used to measure the radiation fluxes from five different directions. The novel FXRD is composed of a specially designed gold filter and gold cathode for the purpose of obtaining an approximately uniform response in the soft X-ray photon energy region from 100 eV to 4 keV [15] , and the radiation flux can be recovered using a weighted method [16] . A transmission grating spectrometer (TGS) using CCD as the detector is used to diagnose the time-integrated X-ray spectra.…”

Section: Methodsmentioning

confidence: 99%

Experimental Study of the X-Ray Radiation Source at Approximately Constant Radiation Temperature

Song¹,

Yang²,

Yang³

et al. 2013

Plasma Sci. Technol.

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An X-ray radiation source with approximately constant radiation temperature is realized by irradiating golden hohlraum with a shaped laser pulse. A simple theoretical model based on power balance is used to design the shape of the drive laser pulse. Experiments are carried out on the Shenguang III prototype laser facility, and the experimental results are presented for radiation sources with the flat-top lasting about 2.5 ns at two different peak temperatures of about 150 eV and 170 eV, respectively, including the time histories of the temperatures, the shapes of the drive laser pulses and the time integrated radiation spectra. The validity of the model and possible improvements are discussed.

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Section: Methodsmentioning

confidence: 99%