Characteristic of the 60°C-Dipole for CSR

HE Yuan; XIONG Hui; LIU Wei-Jun; HAN Shao-Fei; YUAN Ping; MA Li-Zhen; ZHANG Bin; WANG Wen-Jin; WANG Yue; XIA Jia-Wen

Chinese Physics C> 2003, Vol. 27> Issue(6) : 532-536

Characteristic of the 60°C-Dipole for CSR

Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China2 Graduate School of the Chinese Academy of Sciences,Beijing 100039,China

Abstract
HTML
Reference
Related

PDF

Abstract：
The trimming coils embedded in poles of magnet are applied in the C-dipole prototypes of CSR. They are used to adjust the uniformity of magnetic fields through reducing outside magnetic field and augmenting inside. The impact of trimming currents on the uniformity of field and multipole components is carefully investigated by using the two kinds of magnetic measurements,hall sensor and long coil,respectively. It is proved that the uniformity which is better than ±1.0×10 -3 can be reached easily. At the same time,the quadrupole and sextupole components of fields have decreased to a low level through optimizing the trimming currents,but,unfortunately,the octupole and dodecapole will increase correspondingly. Finally,the two measured and calculated results are compared. There is very small difference between the results of the two measuring methods. However,all of the measured results are alien to the calculated one because of the insufficiency of the TOSCA calculation.

References

[1]

. XIA J W et al.NIMA ,2002,488:11—252. XIA Jia-Wen et al.Nuclear Physics Review,2001,18(1):35—36(in Chinese)(夏佳文等.原子核物理评论,2001,18(1):35—36)3. Halbach K.NIM,1973,107:515—5284. Bryant P J.CAS,CERN 92—05,Geneva:19925. JIANG C J.Scientific Calculation and CProgram Library,Beijing:Uni versity of Science and Technology of China Press,1998,198—204(in Chinese)(蒋长锦.科学计算和C程序集,北京:中国科技大学出版社,1998,198—204)

[1]	GUO Yun-Jun , HE Kang-Lin . Muon Identification Using the Efficiencies Ratio Method at BESⅡ. Chinese Physics C, 2007, 31(11): 1050-1055.
[2]	HUANG Wen-Xue , WANG Yue , ZHU Zhi-Chao , TIAN Yu-Lin , XU Hu-Shan , SUN Zhi-Yu , XIAO Guo-Qing , ZHAN Wen-Long . Experimental Study of the High-Voltage Breakdown and Simulations for the RFQ Cooler and Buncher RFQ1L. Chinese Physics C, 2006, 30(S2): 261-264.
[3]	LIU Chang-Long , LU Yi-Ying , YIN LI . Effects of Additional Vacancy-Like Defects Produced by Ion Impealations on Boron Thermal Diffusion in Silicon. Chinese Physics C, 2005, 29(11): 1107-1111.
[4]	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.
[5]	HU Xi-Duo , SHAO Ming-Zhu , LUO Shi-Yu , LIU Yong-Sheng , ZHU De-Hai . Average Field Idea and Single Particle Model for 2 Dimension Crystallization Beams(Ⅱ). Chinese Physics C, 2004, 28(2): 196-199.
[6]	Yang Jianjun , Ma Boqiang , Li Guanglie . Non-perturbative Quark Propagator and the Study of the Non-trivial Q² Dependence in the Nucleon Structure Functions. Chinese Physics C, 1997, 21(2): 146-156.
[7]	BES Collaboration . Experimental Study of Resonance f₂(1270) in the J/ψ Hadronic Decay. Chinese Physics C, 1993, 17(2): 97-106.
[8]	HOU Ren-Chang , ZHAO Xuan . QUADRUPOLE-OCTUPOLE TWO-PHONON EXCITATIONS IN INELASTIC SCATTERING. Chinese Physics C, 1983, 7(2): 236-244.
[9]	Sa Ben-hao , Zhang Xi-zhen , Li Zhu-xia , Shi Yi-jin . A PRIMARY RESEARCH OF THE PHONON RENORMALIZATION OF NUCLEAR FIELD THEORY. Chinese Physics C, 1980, 4(3): 398-400.

Access

Get Citation

HE Yuan, XIONG Hui, LIU Wei-Jun, HAN Shao-Fei, YUAN Ping, MA Li-Zhen, ZHANG Bin, WANG Wen-Jin, WANG Yue and XIA Jia-Wen. Characteristic of the 60°C-Dipole for CSR[J]. Chinese Physics C, 2003, 27(6): 532-536.

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2002-06-05
Revised: 1900-01-01

Article Metric

Article Views(3135)
PDF Downloads(648)
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

Characteristic of the 60°C-Dipole for CSR

Corresponding author: HE Yuan,

Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China2 Graduate School of the Chinese Academy of Sciences,Beijing 100039,China

Received Date: 2002-06-05
Accepted Date: 1900-01-01
Available Online: 2003-06-05

Abstract: The trimming coils embedded in poles of magnet are applied in the C-dipole prototypes of CSR. They are used to adjust the uniformity of magnetic fields through reducing outside magnetic field and augmenting inside. The impact of trimming currents on the uniformity of field and multipole components is carefully investigated by using the two kinds of magnetic measurements,hall sensor and long coil,respectively. It is proved that the uniformity which is better than ±1.0×10 -3 can be reached easily. At the same time,the quadrupole and sextupole components of fields have decreased to a low level through optimizing the trimming currents,but,unfortunately,the octupole and dodecapole will increase correspondingly. Finally,the two measured and calculated results are compared. There is very small difference between the results of the two measuring methods. However,all of the measured results are alien to the calculated one because of the insufficiency of the TOSCA calculation.