Acta Optica Sinica, Volume. 32, Issue 7, 730002(2012)
Calibration Research of Integral Diffraction Efficiency of Crystal in Laboratory
Based on stability and angle precision control of the X-ray diffractometer, the calibration technique of integral diffraction efficiency of the flat crystal is introduced by taking the flat PET crystal as sample. X-ray source is Cu X-ray tube and it is monochromatic at Cu-Kα lines by choosing appropriate high voltage and nickel foils to attenuate bremsstrahlung and Cu-Kβ lines. The slit width in front of proportional counter is 0.05 mm. The source and diffractive curve are scanned in steps of 0.001°. The data show that the integral diffraction efficiency is (1.759±0.002)×10-4 rad at Cu-Kα (8047.823 eV). The results show that this calibration technique is efficient and it can be completed conveniently in common laboratory.
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Wei Minxi, Yang Guohong, Yi Tao, Hou Lifei, Liu Shenye, Li Jun. Calibration Research of Integral Diffraction Efficiency of Crystal in Laboratory[J]. Acta Optica Sinica, 2012, 32(7): 730002
Category: Spectroscopy
Received: Jan. 11, 2012
Accepted: --
Published Online: May. 24, 2012
The Author Email: Minxi Wei (wmx17@sina.com)