Courant-Snyder invariant density screening method for emittance analysis

SUN Ji-Lei; TANG Jing-Yu; JING Han-Tao

doi:10.1088/1674-1137/35/11/015

Chinese Physics C> 2011, Vol. 35> Issue(11) : 1059-1065 DOI: 10.1088/1674-1137/35/11/015

Courant-Snyder invariant density screening method for emittance analysis

Abstract
HTML
Reference
Related

PDF

Abstract：
Emittance is an important characteristic of describing charged particle beams. In hadron accelerators, we often meet irregular beam distributions that are not appropriately described by a single rms emittance or 95% emittance or total emittance. In this paper，it is pointed out that in many cases a beam halo should be described with very different Courant-Snyder parameters from the ones used for the beam core. A new method — the Courant-Snyder invariant density screening method - is introduced for analyzing emittance data clearly and accurately. The method treats the emittance data from both measurements and numerical simulations. The method uses the statistical distribution of the beam around each particle in phase space to mark its local density parameter, and then uses the density distribution to calculate the beam parameters such as the Courant-Snyder parameters and emittance for different beam boundary definitions. The method has been used in the calculations for beams from different sources, and shows its advantages over other methods. An application code based on the method including the graphic interface has also been designed.

References

[1]

Buon J. Beam Phase Space and Emittance, CERN Accelerator School, 4th general course, 91-04, 302 Frank J. Sacherer, RMS Envelope Equations with Space Charge, PAC1971, CERN, Geneva, Switzerland, 1105-11073 Takeda H. Parmila, LA-UR-98-4478, Los Alamos National Laboratory, 2005, 47-494 Crandall K R, Rusthoi D P. TRACE 3-D Documentation (Third Edition), LA-UR-97-886, Los Alamos National Laboratory, 1997. 3, 705 Galambos J D, Holmes J A, Olsen D K. ORBIT User Manual Version 1.10, SNS Building MS-8218, Oak Ridge National Laboratory, 1999, 15-166 TANG Jing-Yu. Nucl. Instrum. Methods A, 2008, 595: 561-5677 Stockli M P, Welton R F, Keller R. Self-consistent, Unbiased Exclusion Methods of Emittance Analysis, 20th IEEE Particle Accelerator Conference, Portland, OR, USA, 2003, 5278 Stockli M P. AIP Conf. Proc., 2006, 868: 25-629 Stockli M P et al. AIP Conf. Proc., 2002, 639: 135-15910 WEI Jie et al. Nuc. Inst. Meth. Phys. Res. A, 2009, 600: 10-1311 Private communication with MENG Cai12 Private communication with Peng Jun13 The Mathworks Inc., Matlab trial software

[1]	Ibrahim Sener . Massive self-duality solution associated with invariant one-forms. Chinese Physics C, 2018, 42(1): 013107. doi: 10.1088/1674-1137/42/1/013107
[2]	Yanyan Bu , Shu Lin . Holographic magnetized chiral density wave. Chinese Physics C, 2018, 42(11): 114104. doi: 10.1088/1674-1137/42/11/114104
[3]	F. Koyuncu , A. Soylu . Screening effects on ¹²C+¹²C fusion reaction. Chinese Physics C, 2018, 42(5): 054106. doi: 10.1088/1674-1137/42/5/054106
[4]	Yunlong Zheng , Yicen Mou , Haomin Rao , Mingzhe Li . Conformal invariant cosmological perturbations via the covariant approach: multicomponent universe. Chinese Physics C, 2018, 42(3): 035102. doi: 10.1088/1674-1137/42/3/035102
[5]	Zhi-Wei Zuo , Jun-Chen Pei , Xue-Yu Xiong , Yi Zhu . Global analysis of Skyrme forces with higher-order density dependencies. Chinese Physics C, 2018, 42(6): 064106. doi: 10.1088/1674-1137/42/6/064106
[6]	Zhong Xu , Zhi-Pan Li . Microscopic analysis of octupole shape transitions in neutron-rich actinides with relativistic energy density functional. Chinese Physics C, 2017, 41(12): 124107. doi: 10.1088/1674-1137/41/12/124107
[7]	Jing-Jing Liu , Qiu-He Peng , Dong-Mei Liu . Strongly screening electron capture for nuclides ^{52, 53, 59, 60}Fe by the Shell-Model Monte Carlo method in pre-supernovae. Chinese Physics C, 2017, 41(9): 095101. doi: 10.1088/1674-1137/41/9/095101
[8]	Heng Chen , Kun Gao , Da-Jiang Wang , Li Song , Zhi-Li Wang . Performance analysis of quantitative phase retrieval method in Zernike phase contrast X-ray microscopy. Chinese Physics C, 2016, 40(2): 029001. doi: 10.1088/1674-1137/40/2/029001
[9]	Jin-Tao Zhu , Guo-Fu Liu , Jun Yang , Xiao-Liang Luo , Lei Zhang , Li-Feng Ji . A new method of charged particle identification based on frequency spectrum analysis. Chinese Physics C, 2016, 40(3): 036202. doi: 10.1088/1674-1137/40/3/036202
[10]	TIAN Sai-Ke , WANG Jiu-Qing , XU Gang , JIAO Yi . Intra-beam scattering studies for low emittance at BAPS. Chinese Physics C, 2015, 39(6): 067001. doi: 10.1088/1674-1137/39/6/067001
[11]	XU Gang , PENG Yue-Mei . Minimum emittance in TBA and MBA lattices. Chinese Physics C, 2015, 39(3): 037005. doi: 10.1088/1674-1137/39/3/037005
[12]	LI Dong-Cang , REN Zhong-Guo , YANG Lei , QI Zhong , MENG Xiang-Ting , HU Bi-Tao . A novel acquisition method for nuclear spectra based on pulse area analysis. Chinese Physics C, 2015, 39(4): 046201. doi: 10.1088/1674-1137/39/4/046201
[13]	XU Xing , WANG Meng , SHUAI Peng , CHEN Rui-Jiu , YAN Xin-Liang , ZHANG Yu-Hu , YUAN You-Jin , XU Hu-Shan , ZHOU Xiao-Hong , Yuri A , Sergey Litvinov , TU Xiao-Lin , CHEN Xiang-Cheng , FU Chao-Yi , GE Wen-Wen , GE Zhuang , HU Xue-Jing , HUANG Wen-Jia , LIU Da-Wei , XING Yuan-Ming , ZENG Qi , ZHANG Wei . A data analysis method for isochronous mass spectrometry usingtwo time-of-flight detectors at CSRe. Chinese Physics C, 2015, 39(10): 106201. doi: 10.1088/1674-1137/39/10/106201
[14]	A. Pilloni , A. D. Polosa . H→γγ: a comment on the indeterminacy of non-gauge-invariant integrals. Chinese Physics C, 2013, 37(4): 043102. doi: 10.1088/1674-1137/37/4/043102
[15]	Zafar Yasin , Warda Iram , Muhammad Asghar , Ikram Shahzad . Cascade-exciton model analysis of level density parameter dependence in proton induced fission cross sections of some sub-actinide nuclei. Chinese Physics C, 2011, 35(11): 1013-1016. doi: 10.1088/1674-1137/35/11/006
[16]	Lü Hui-Yi , WANG Tie-Shan , HAN Yun-Cheng , FANG Kai-Hong , MENG Xuan , HE Qing-Hua , GUAN Xing-Cai , LAN Ming-Cong . Effect of deuteron density distribution on the deduction of screening potential from the D(d,p)T reaction in Be metals. Chinese Physics C, 2011, 35(1): 26-30. doi: 10.1088/1674-1137/35/1/006
[17]	He Zejun , Zhang Jiaju . Dilepton Invariant Mass Distribution in Central Rapidity Region. Chinese Physics C, 1995, 19(S4): 421-425.
[18]	Dong Yubing , Shen Pengnian , Yu Youwen , Zhang Zongye . Color Screening Effect in bb System. Chinese Physics C, 1994, 18(S2): 201-206.
[19]	Shen Xiaoyan , Shen Pengnian , Yu Youwen , Zhang Zongye . Color Screening Effect and Nucleon-Nucleon Interaction. Chinese Physics C, 1993, 17(S2): 207-213.
[20]	Yang Hua , Deng Weizhen , Zhang Zongye . Color Screening Effect and Baryon Spectra. Chinese Physics C, 1992, 16(S1): 91-100.

Access

Get Citation

SUN Ji-Lei, TANG Jing-Yu and JING Han-Tao. Courant-Snyder invariant density screening method for emittance analysis[J]. Chinese Physics C, 2011, 35(11): 1059-1065. doi: 10.1088/1674-1137/35/11/015

SUN Ji-Lei, TANG Jing-Yu and JING Han-Tao. Courant-Snyder invariant density screening method for emittance analysis[J]. Chinese Physics C, 2011, 35(11): 1059-1065. doi: 10.1088/1674-1137/35/11/015 shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2011-03-10
Revised: 2011-04-07

Article Metric

Article Views(2333)
PDF Downloads(349)
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

Courant-Snyder invariant density screening method for emittance analysis

Received Date: 2011-03-10

Accepted Date: 2011-04-07

Available Online: 2011-11-05

Abstract: Emittance is an important characteristic of describing charged particle beams. In hadron accelerators, we often meet irregular beam distributions that are not appropriately described by a single rms emittance or 95% emittance or total emittance. In this paper，it is pointed out that in many cases a beam halo should be described with very different Courant-Snyder parameters from the ones used for the beam core. A new method — the Courant-Snyder invariant density screening method - is introduced for analyzing emittance data clearly and accurately. The method treats the emittance data from both measurements and numerical simulations. The method uses the statistical distribution of the beam around each particle in phase space to mark its local density parameter, and then uses the density distribution to calculate the beam parameters such as the Courant-Snyder parameters and emittance for different beam boundary definitions. The method has been used in the calculations for beams from different sources, and shows its advantages over other methods. An application code based on the method including the graphic interface has also been designed.

HTML

Reference (1)

Courant-Snyder invariant density screening method for emittance analysis

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Courant-Snyder invariant density screening method for emittance analysis

HTML

目录