Experimental study using Touschek lifetime as machine status flag in SSRF

CHEN Zhi-Chu; LENG Yong-Bin; YUAN Ren-Xian; YAN Ying-Bing; YU Lu-Yang

doi:10.1088/1674-1137/38/7/077005

Chinese Physics C> 2014, Vol. 38> Issue(7) : 077005 DOI: 10.1088/1674-1137/38/7/077005

Experimental study using Touschek lifetime as machine status flag in SSRF

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Abstract：
The stabilities of the beam and machine have almost the highest priority in a modern light source. Although a lot of machine parameters could be used to represent the beam quality, there is no single parameter that could indicate the global information for the machine operators and accelerator physicists. For the last few years, a new parameter has been studied as a beam quality flag in the Shanghai Synchrotron Radiation Facility (SSRF). Calculations, simulations and detailed analysis of the real-time data from the storage ring have been made and the interesting results have confirmed its feasibility.

References

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Wiedemann H. Particle Accelerator Physics. Third Edition. New York: Springer-Verlag Berlin Heidelberg, 2007[2] Khan S. Simulation of the Touschek Effect for BESSY II A Monte Carlo Approach. In: Proceedings of the Fourth European Particle Accelerator Conference. London, England, 1994. 1192-1194[3] Boscolo M, Biagini M Raimondi P et al. Touschek Background and Lifetime Studies for the SuperB Factory. In: Proceedings of PAC09. Vancouver, BC, Canada, 2009. 3844-3846[4] KANG H S, HUANG J Y, Nam S H. Measurement of Touschek Lifetime in PLS Storage Ring. In: Proceedings of the Second Asian Particle Accelerator Conference. Beijing, China, 2001. 314-316[5] Leonov V, Ushkov V. Measurement of Siberia-1 Beam Lifetime by the Decay Rate Plot Method. In: Proceedings of RuPAC XIX. Dubna, 2002. 272-274[6] Steier C, YANG L Y. Touschek Lifetime Measurements at Small Horizontal Emittance in the ALS. In: Proceedings of PAC09. Vancouver, BC, Canada, 2009. 3269-3271[7] Blinov V, Kiselev V, Nikitin S et al. Measurement of the Energy Dependence of Touschek Electron Counting Rate. In: Proceedings of 2011 Particle Accelerator Conference. New York, USA, 2011. 426-428[8] Nash B, Ewald F, Farvacque L et al. Touschek Lifetime and Momentum Acceptance Measurements for ESRF. In: Proceedings of IPAC2011 San Sebastián, Spain, 2011. 2921-2923[9] HUANG G Q, CHEN J, CHEN Z C et al. Nuclear Techniques, 2010, 33(11): 806-809 (in Chinese)[10] CHEN Z C, LENG Y B, CHEN J et al. Point Spread Function Study of X-ray Pinhole Camera in SSRF. In: Proceedings of IPAC2013. Shanghai, China, 2013. 592-594[11] LENG Y B, YAN Y B, CHEN Z C et al. Beam Diagnostics Global Data Warehouse Implementation and Application at SSRF. In: Proceedings of IPAC2011. San Sebastián, Spain, 2011. 1287-1289

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CHEN Zhi-Chu, LENG Yong-Bin, YUAN Ren-Xian, YAN Ying-Bing and YU Lu-Yang. Experimental study using Touschek lifetime as machine status flag in SSRF[J]. Chinese Physics C, 2014, 38(7): 077005. doi: 10.1088/1674-1137/38/7/077005

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Received: 2013-09-10
Revised: 2013-12-05

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沈阳化工大学材料科学与工程学院沈阳 110142

Experimental study using Touschek lifetime as machine status flag in SSRF

Corresponding author: CHEN Zhi-Chu,

Corresponding author: LENG Yong-Bin,

Received Date: 2013-09-10
Accepted Date: 2013-12-05
Available Online: 2014-07-05

Abstract: The stabilities of the beam and machine have almost the highest priority in a modern light source. Although a lot of machine parameters could be used to represent the beam quality, there is no single parameter that could indicate the global information for the machine operators and accelerator physicists. For the last few years, a new parameter has been studied as a beam quality flag in the Shanghai Synchrotron Radiation Facility (SSRF). Calculations, simulations and detailed analysis of the real-time data from the storage ring have been made and the interesting results have confirmed its feasibility.