Study on the Stability of the Device based on Double Crystal Monochromator

The stability of the single-energy X-ray device produced by X-ray machine and Bragg diffraction is studied. The stability of X-ray machine and double crystal structure is tested by controlling the temperature, humidity and other environmental factors. The test results show that the stability of the X-ray machine is less than 2.7% during the test time of 3000 s, and the double crystal structure is tested for 3000s, and the results show a periodic fluctuation of 1000s. When exploring the cause of fluctuation, the angle motor in the double crystal stepper motor is tested, and it is concluded that it is caused by the moment imbalance of the flexure hinge of the double crystal stepper. In the next work, the motion direction of the flexure hinge will be changed to ensure the stability of the double crystal structure.

關鍵字

X-ray machine ； Double crystal Monochromator ； Bragg diffraction ； Stability

參考文獻

Dongjie Hou, Jinjie Wu, Siming Guo, Chong Wu , Chengze Li: The realization and study of (21-301) keV monochromatic X-rays, Nuclear Instruments & Methods in Physics Research, Vol. 927(2019) No. MAY 21, p. 382-389.

S Yagi, G Kutluk, T Matsui, A Matano, A Hiraya, E Hashimoto, M Taniguchi: Design and performance of a soft X-ray double crystal monochromator at HSRC, Nucl Instrum Methods Phys Res, Vol. 467-468(2001) No. part-P1, p. 723-726.

Guo Siming, Li Mengshi, Hou Dongjie, Wu Jinjie, Wang Ji, Wang Bo, Zhai Yudan, Huang Jianwei, Zhang Jian: Design and Monochromaticity of a Monochromatic X-ray Calibration Device, Acta Metrologica Sinica, Vol. 39(2018) No. z1, p. 143-147.

Google Scholar

Cao Chongzhen: Study on Some Key Technologies of a Double-Crystal Monochromator for Synchrotron Radiation, (PH.D., Shanghai Jiao Tong University, China, 2005)

Google Scholar

Yan Yonglian, Xie Yaning, Hu Tiandou, Liu Tao, China CN2355409.(1999).

Google Scholar

國際替代計量

Study on the Stability of the Device based on Double Crystal Monochromator

全文下載

主題瀏覽