Influence of the photon beam position on incident SR intensity at the SXMCD endstation

GUO Yu-Xian; XU Peng-Shou

doi:10.1088/1674-1137/37/12/128002

Chinese Physics C> 2013, Vol. 37> Issue(12) : 128002 DOI: 10.1088/1674-1137/37/12/128002

Influence of the photon beam position on incident SR intensity at the SXMCD endstation

GUO Yu-Xian ^, ,
XU Peng-Shou

Abstract
HTML
Reference
Related

PDF

Abstract：
A small fluctuation of the photon beam position will affect the intensity and polarization characteristics of synchrotron radiation (SR) when it enters an endstation through the related beamline. In this paper, by changing the electron orbit equilibrium position in the vertical direction, we have measured the corresponding changes in the absorption strength of the SR with a gold mesh in different chopper aperture positions. It is found that for three aperture positions, the absorption intensity of the gold mesh shows a good Gaussian distribution as the photon beam position moves, while the ratio of the SR intensity passing through the upper and lower apertures shows a monotonous variation. This suggests a new method for estimating the circular polarization degree of SR originating from the bending magnet based on our current measurement.

References

[1]

Funk T, Deb A, George S J et al. Coordin. Chem. Rev., 2005, 249: 3[2] Sánchez-Hanke C, Kao C-C. J. Magn. Magn. Mater., 2001, 226-230: 1803[3] Sato K, Ueji Y, Okitsu K et al. J. Synchrotron Rad., 2001, 8: 1021[4] Holldack K, Kachel T, Schafers F et al. Rev. Sci. Instrum., 1996, 67: 2485[5] MacDonald M A, Schaefers F, Pohl R et al. Rev. Sci. Instrum., 2008, 79: 025108[6] GUO Zhi-Ying, XI Shi-Bo, ZHU Jing-Tao et al. Chin. Phys. C, 2013, 37: 018001[7] SUN Bao-Gen, LIN Shun-Fu, HE Duo-Hui et al. High Power Laser and Particle Beams, 2006, 18: 143 (in Chinese)[8] WANG Jie, LI Hong-Hong, WANG Feng et al. Nuclear Techniques, 2005, 28: 489 (in Chinese)

[1]	Pazilet Obul , Mamut Ababekri , Sayipjamal Dulat , Joshua Isaacson , Carl Schmidt , C. -P. Yuan . Implications of CMS analysis of photon-photon interactionsfor photon PDFs. Chinese Physics C, 2018, 42(11): 113101. doi: 10.1088/1674-1137/42/11/113101
[2]	Chao-Cai Cheng , Bao-Gen Sun , Yong-Liang Yang , Ze-Ran Zhou , Ping Lu , Fang-Fang Wu , Ji-Gang Wang , Kai Tang , Qing Luo , Hao Li , Jia-Jun Zheng , Qing-Ming Duan . Beam size and position measurement based on logarithm processing algorithm in HLS Ⅱ. Chinese Physics C, 2016, 40(4): 047004. doi: 10.1088/1674-1137/40/4/047004
[3]	Yong Zhang , Jun-Xia Wu , Guang-Yu Zhu , Huan Jia , Zong-Heng Xue , Hai Zheng , Hong-Ming Xie , Xin-Cai Kang , Yuan He , Lin Li , Jean Claude Denard . Capacitive beam position monitors for the low-β beam of the Chinese ADS proton linac. Chinese Physics C, 2016, 40(2): 027003. doi: 10.1088/1674-1137/40/2/027003
[4]	LI Hong-Wei , LU Jing-Bin , LI Guang-Sheng , ZHENG Yun , YAO Shun-He , WU Xiao-Guang , HE Chuang-Ye , XIA Qing-Liang , LIU Jia-Jian , LI Cong-Bo , HU Shi-Peng , WANG Jin-Long , WU Yi-Heng , LUO Peng-Wei , MA Ke-Yan , XU Chuan , SUN Jun-Jie . New high spin level scheme of ⁸⁷Sr. Chinese Physics C, 2014, 38(7): 074004. doi: 10.1088/1674-1137/38/7/074004
[5]	ZOU Jun-Ying , WU Fang-Fang , YANG Yong-Liang , SUN Bao-Gen , ZHOU Ze-Ran , LUO Qing , LU Ping , XU Hong-Liang . A new measurement method for electrode gain in an orthogonally symmetric beam position monitor. Chinese Physics C, 2014, 38(12): 127002. doi: 10.1088/1674-1137/38/12/127002
[6]	YU Lei , ZHANG Gao-Long , LE Xiao-Yun . Simulation of effects of incident beam condition in p-p elastic scattering. Chinese Physics C, 2014, 38(2): 024001. doi: 10.1088/1674-1137/38/2/024001
[7]	CHENG Xiao-Lei , OUYANG Xiao-Ping , LIU Fang . A digital transmission system for high intensity pulsed radial detection. Chinese Physics C, 2013, 37(1): 016102. doi: 10.1088/1674-1137/37/1/016102
[8]	LIU Mei , DAI Hong-Liang , QI Hui-Rong , ZHUANG Bao-An , ZHANG Jian , LIU Rong-Guang , ZHU Qi-Ming , OUYANG Qun , CHEN Yuan-Bo , JIANG Xiao-Shan , WANG Ya-Jie , LIU Peng , CHANG Guang-Cai . Beam test of a one-dimensional position sensitive chamber on synchrotron radiation. Chinese Physics C, 2013, 37(10): 108001. doi: 10.1088/1674-1137/37/10/108001
[9]	SU Jia-Hang , DU Ying-Chao , HUA Jian-Fei , ZHENG Shu-Xin , QIU Jia-Qi , YANG Jin , HUANG Wen-Hui , CHEN Huai-Bi , TANG Chuan-Xiang . Design and cold test of a rectangular cavity beam position monitor. Chinese Physics C, 2013, 37(1): 017002. doi: 10.1088/1674-1137/37/1/017002
[10]	KE Zun-Jian , LI Jia-Cai , ZHANG Shao-Ping , AN Guang-Peng , TANG Xing-Hua , YANG Tao . A plastic scintillating fiber position detector in vacuum for the test beam facility at BEPCⅡ-LINAC. Chinese Physics C, 2012, 36(1): 67-70. doi: 10.1088/1674-1137/36/1/011
[11]	LI Xiang , ZHENG Shu-Xin . Design and experiments for the waveguide to coaxial cable adapter of a cavity beam position monitor. Chinese Physics C, 2011, 35(1): 79-82. doi: 10.1088/1674-1137/35/1/016
[12]	YAN Qiu-Rong , ZHAO Bao-Sheng , LIU Yong-An , YANG Hao , SHENG Li-Zhi , WEI Yong-Lin . Two-dimensional photon counting imaging detector based on a Vernier position sensitive anode readout. Chinese Physics C, 2011, 35(4): 368-373. doi: 10.1088/1674-1137/35/4/009
[13]	N. N. Achasov , G. N. Shestakov . Nature of light scalars through photon-photon collisions. Chinese Physics C, 2010, 34(6): 807-815. doi: 10.1088/1674-1137/34/6/032
[14]	LI Xiang , ZHENG Shu-Xin . Simulation and experiments for the Q_ext of a cavity beam position monitor. Chinese Physics C, 2010, 34(3): 405-408. doi: 10.1088/1674-1137/34/3/020
[15]	RUAN Yu-Fang , XU Tao-Guang , FU Shi-Nian . Design and simulation of a beam position monitor for the high current proton linac. Chinese Physics C, 2009, 33(3): 240-244. doi: 10.1088/1674-1137/33/3/015
[16]	MAO Ya-Xian , ZHOU Dai-Cui , XU Chun-Cheng , YIN Zhong-Bao . Study of the photon identification efficiency with ALICE photon spectrometer. Chinese Physics C, 2008, 32(7): 543-547. doi: 10.1088/1674-1137/32/7/006
[17]	CHU Jian-Hua , TONG De-Chun , ZHAO Zhen-Tang . RF measurements of a C-band cavity beam position monitor. Chinese Physics C, 2008, 32(5): 385-388. doi: 10.1088/1674-1137/32/5/012
[18]	DENG Biao , YU Xiao-Han , XU Hong-Jie . Influence of Sampling Interval and Number of Projections on the Quality of SR-XFMT Reconstruction. Chinese Physics C, 2007, 31(4): 409-413.
[19]	LI Ming-Liang , ZHU Sheng-Jiang , CHE Xing-Lai , YU Ying-Nan . Research on Two-Quasiparticle Bands in ⁹⁸Sr. Chinese Physics C, 2004, 28(S1): 75-77.
[20]	SUN Bao-Gen , HE Duo-Hui , LU Ping , WANG Jun-Hua , GUO Cong-Liang , WANG Yong , CAO Yong , LI Ji-Hao , ZHENG Pu . Development of a Split Photon Beam Position Monitor for HLS. Chinese Physics C, 2004, 28(2): 210-214.

Access

Get Citation

GUO Yu-Xian and XU Peng-Shou. Influence of the photon beam position on incident SR intensity at the SXMCD endstation[J]. Chinese Physics C, 2013, 37(12): 128002. doi: 10.1088/1674-1137/37/12/128002

GUO Yu-Xian and XU Peng-Shou. Influence of the photon beam position on incident SR intensity at the SXMCD endstation[J]. Chinese Physics C, 2013, 37(12): 128002. doi: 10.1088/1674-1137/37/12/128002 shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2013-03-13
Revised: 2013-05-03

Article Metric

Article Views(1827)
PDF Downloads(192)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Influence of the photon beam position on incident SR intensity at the SXMCD endstation

Corresponding author: GUO Yu-Xian,

Received Date: 2013-03-13

Accepted Date: 2013-05-03

Available Online: 2013-12-05

Abstract: A small fluctuation of the photon beam position will affect the intensity and polarization characteristics of synchrotron radiation (SR) when it enters an endstation through the related beamline. In this paper, by changing the electron orbit equilibrium position in the vertical direction, we have measured the corresponding changes in the absorption strength of the SR with a gold mesh in different chopper aperture positions. It is found that for three aperture positions, the absorption intensity of the gold mesh shows a good Gaussian distribution as the photon beam position moves, while the ratio of the SR intensity passing through the upper and lower apertures shows a monotonous variation. This suggests a new method for estimating the circular polarization degree of SR originating from the bending magnet based on our current measurement.

HTML

Reference (1)

Influence of the photon beam position on incident SR intensity at the SXMCD endstation

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article