Study of transmission grating diffraction efficiencies for soft X-ray

YANG Jiamin，

DING Yaonan，

ZHENG Zhijian，

YI Rongqing，

SUN Kexu，

CUI Mingqi，

CUI Congwu，

ZHU Peiping，

CHEN Zhenlin，

LI Chaoguang，

WANG Yaomei

Nuclear Science and Techniques

Vol.10, No.2

pp.78-82

Published in print 01 Mar 1999

23800

Tansmission grating spectrometers are extensively used to measure abso-lute X-ray spectra in a photon-energy range below 1000 eV. The transmission grating, as its dispersive element, must be calibrated to obtain its diffraction efficiencies. Cali-brations of absolute diffraction efficiencies of the transmission grating at photon energy of 844 eV have been carried out on Beijing Synchrotron Radiation Facility. With the aid of grating model, all of the grating structure parameters have been determined and the absolute diffraction efficiencies in a photon-energy range below 2000 eV have also been calculated and discussed.

Synchrotron radiationTransmission gratingDiffraction efficiency

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