Effect on energy drift from temperature fluctuation at the Dreamline monochromator

doi:10.3788/OPE.20182609.2312

CIOMP OpenIR

	Effect on energy drift from temperature fluctuation at the Dreamline monochromator
	Chen, Jia-Hua; Zou, Ying; Lu, Qi-Peng; Wang, Yong; Xue, Song
	2018
发表期刊	Guangxue Jingmi Gongcheng/Optics and Precision Engineering
ISSN	1004924X
卷号	26 期号:9 页码:2312-2318
摘要	In order to ensure that energy drift from temperature fluctuation of the grating monochromator does not affect apparent energy resolution of the beamline, a high-accuracy constant temperature environment (CTE) was built for the monochromator. Combined with the design of Dreamline beamline at Shanghai Synchrotron Radiation Facility, the relationship between the temperature difference at the monochromator and the energy drift was established by the grating equation. Based on that, the CTE of the monochromator was designed with tiny temperature fluctuations along the beam direction, and long-time temperature stability was tested under different conditions of temperature-controlled system (TCS); then, the corresponding energy drift was obtained through measuring K-edge absorption spectra of nitrogen several times over a long time. The results show that the maximum temperature fluctuation was 0.62 K and the corresponding energy drift was about 49 meV when the TCS was off; in contrast, when it was working with a stand-alone chiller, the maximum temperature fluctuation became 0.20 K and the corresponding energy drift reduced to around 17 meV. The results demonstrated that the built CTE of the monochromator meets the design requirement, and the energy drift from the temperature difference of the monochromator has little effect on the apparent energy resolution of the Dreamline beamline. 2018, Science Press. All right reserved.
关键词	Monochromators Electromagnetic wave absorption Gas absorption Synchrotron radiation Temperature distribution
DOI	10.3788/OPE.20182609.2312
收录类别	EI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/60644
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Chen, Jia-Hua,Zou, Ying,Lu, Qi-Peng,et al. Effect on energy drift from temperature fluctuation at the Dreamline monochromator[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2018,26(9):2312-2318.
APA	Chen, Jia-Hua,Zou, Ying,Lu, Qi-Peng,Wang, Yong,&Xue, Song.(2018).Effect on energy drift from temperature fluctuation at the Dreamline monochromator.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,26(9),2312-2318.
MLA	Chen, Jia-Hua,et al."Effect on energy drift from temperature fluctuation at the Dreamline monochromator".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 26.9(2018):2312-2318.

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