Open AccessSpectral response calibration of Au and CsI transmission photocathodes of X-ray streak camera in a 605500 eV photon energy region
Author(s) -
Peng Zeng,
Yuan Zheng,
Bo Deng,
Yuan Yong-Teng,
Li Zhichao,
Shenye Liu,
Zhao Yi-Dong,
Hong Cai-Hao,
Lei Zheng,
Mingqi Cui
Publication year - 2012
Publication title -
acta physica sinica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.61.155209
Subject(s) - photocathode , streak camera , physics , optics , synchrotron radiation , calibration , photon , streak , synchrotron , photon energy , transmission (telecommunications) , range (aeronautics) , electron , materials science , nuclear physics , laser , quantum mechanics , electrical engineering , composite material , engineering
A method is described of measuring absolute spectral response for Au and CsI transmission photocathodes in soft X-ray streak camera, which is of great importance for the inertial confinement fusion (ICF) diagnostics. Transmission photocathode is conventionally employed as photo-to-electron conversion accessories. To derive quantity information of X-ray spectra, the absolute response of photocathode must be calibrated in a range of interest. Here Au and CsI transmission photocathodes with slits are calibrated respectively on Beijing Synchrotron Radiation Facility (BSRF), in a photon energy range of 60 eV5500 eV. This method has an uncertainty less than 10% and good feasibility. Calibration results are in good agreement with the calculation results obtained from the Henke's photon emission model, with CH substrate effect revised.
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