Using Axial Magnetized Permanent Rings to Build Axial Gradient Magnetic Field

PENG Quan-Ling; ZHAO Qi

Chinese Physics C> 2003, Vol. 27> Issue(4) : 363-366

Using Axial Magnetized Permanent Rings to Build Axial Gradient Magnetic Field

PENG Quan-Ling ^, ,
ZHAO Qi

Institute of High Energy Physics, CAS, Beijing 100039, China2 Pingdingshan Television University, He′nan Pingdingshan 467000, China

Abstract
HTML
Reference
Related

PDF

Abstract：
Axial field produced by an axially magnetized permanent ring was studied. For two permanent magnet rings, if they are magnetized in the same direction, a nearly uniform axial field can be produced; if they are magnetized in opposite direction, an axial gradient field can be produced in the region between the two permanent rings, with the field strength changing from-B₀ to B₀. A high gradient axial magnetic field has been built by using two axially magnetized permanent rings, the measured field results agree with the PANDIRA calculation very well. It is desirable that the field gradient can be varied to match various requirements. A method to produce the variable gradient field is presented. Axial gradient field can also be used as a beam focusing facility for linear accelerator if axial periodic field can be produced. Its magnetic field is similar to that of a solenoid, in which, large stray field will leak to the outside environment. A method for shielding the outside stray field is discussed.

References

[1]

. PENG QuanLing,Mc Murry S ,Coey J M D .Cylindrical Permanent Magnet Structure Using the Imagesin AnIron Shield.Will be Published in IEEE Transaction On Magnetics,2002 2. Poisson Superfish Package.LA- UR -87-126,Los Alamos National Laboratory,Los Alamos N M ,1987 3. Sprehn D ,Caryotakis G ,Jongewaard E et al.Periodic Permanent Magnet Development for Linear Collider X-band Klystrons.SLAC- PUB- 7925,1998 4. Chin Y H ,Higo T ,Urakawa J .Status of JLC Accelerator Development. KEK Preprint 2000-140

[1]	SHI Cai-Tu , NI Gan-Lin , SUN Xian-Jing , CAO Zan , YIN Zhao-Sheng , PANG Jia-Biao , CHEN Wan , LI Li , CHEN Fu-San , PENG Quan-Ling , YIN Bao-Gui , ZHANG Zhuo , SUN Yao-Lin , WANG Jian-Li , ZHANG Jia-Fei . Design and Fabrication of the Magnets for BEPCⅡ Project. Chinese Physics C, 2008, 32(S1): 7-10.
[2]	YAO Qing-Gao , MA Li-Zhen , HE Yuan , LI Qing , WU Wei , BIAN Wen-Long , YUAN Ping , ZHAN Wen-Long . Optimization of Magnetic Field for CR Dipole Magnet. Chinese Physics C, 2008, 32(S1): 19-21.
[3]	CUI Bao-Qun , TANG Bing , MA Yin-Jun , MA Rui-Gang , JIANG Cong , CHEN Li-Hua , JIANG Wei-Sheng . A Permanent Magnet Ion Source with Adjustable Magnetic Field. Chinese Physics C, 2008, 32(S1): 280-282.
[4]	A.Hobl , B.Fischer , C.Radermacher , D.Krischel , M.Jordan , M.M.Reumers . Superconducting Magnets for ECRIS - Design Aspects and Industrial Production. Chinese Physics C, 2007, 31(S1): 27-30.
[5]	C.Bieth¹ , J.L.Delvaux² , F.Varenne³ , M.Duval³ , M.P.Bourgarel¹ , J.Fermé¹ . Studies and Design of a Dual Beam Axial Injection System Using H- Cusp Source and ECR Ion Source for He for IBA C70 Cyclotron. Chinese Physics C, 2007, 31(S1): 223-225.
[6]	GE Ming-Qi , ZHAO Sheng-Chu , SUN Hong , GAO Jie . Design study on 1.3GHz Mono-cell High Gradient Low Loss Superconducting Cavity. Chinese Physics C, 2006, 30(4): 354-358.
[7]	PEI Shi-Lun , WANG Shu-Hong . Wake Field Calculation Studies in Constant Gradient Accelerating Structures. Chinese Physics C, 2006, 30(3): 251-259.
[8]	YAO Hong-Juan , ZHANG Tian-Jue , JIA Xian-Lu , GUAN Feng-Ping , WEI Su-Min , LV Yin-Long , LIN Yu-Zheng . Physics Design For Axial Injection System and Central Region of 100MeV High Intensity Cyclone. Chinese Physics C, 2006, 30(S1): 141-143.
[9]	ZHANG Jin-Quan , LI Zhi-Hui , SONG Ming-Tao , YIN Quan-Min , ZHAO Hong-Wei . Study of Buncher Efficiency in Axial Injection System of SFC. Chinese Physics C, 2006, 30(8): 788-791.
[10]	YIN Quan-Min , SONG Ming-Tao , ZHANG Jin-Quan , ZHAO Hong-Wei . New Axial Injection Beam Line of SFC. Chinese Physics C, 2006, 30(S1): 117-119.
[11]	YANG Guo-Jun , ZHANG Zhuo , CHEN Si-Fu , LIU Cheng-Jun , LIN Yu-Zheng . Time-Resolved Emittance Measurement of Intense Pulse Beams Using the Modified Three Gradient Method. Chinese Physics C, 2005, 29(2): 191-196.
[12]	CHEN Di , ZHU Jun , LEI Wei , WANG Sui , ZHANG Da-Cheng , YI Fu-Ting . Study on New Type LIGA Mask Fabrication Technique. Chinese Physics C, 2001, 25(S1): 131-134.
[13]	TANG JingYu , JIANG JunZhang , LI ZhiHui , XU XiangYang , WANG YiFang , YIN QuanMin . Study and Design of the Axial Injection System at SFC. Chinese Physics C, 2000, 24(12): 1173-1178.
[14]	Huang Yongzhang , Wu Gang . Transient Beam Loading Problem in Constant Gradient Accelerator Structure. Chinese Physics C, 1994, 18(4): 310-316.
[15]	HUANG Yong-Zhang , TENG Ke-Jian , XIE Jia-Lin . Design and Fabrication of Alpha Magnet for an Microwave Electron Gun. Chinese Physics C, 1993, 17(9): 790-795.
[16]	XU Jian-Ming , WU Qing . STUDIES OF THE FIELD DISTRIBUTION OF THE MODULATING WIDTH MULTIPOLE PERMANENT MAGNETS. Chinese Physics C, 1987, 11(3): 369-375.
[17]	LI Zeng-Hai , MAO Nai-Feng , LIU Lan-Fen , SUN Qin-Ren . SPATIAL DISTRIBUTION OF MAGNETIC FIELD EXPRESSED BY THE FIELD ON MERIDIANAL PLANE. Chinese Physics C, 1986, 10(6): 730-737.
[18]	XU Jian-Ming , SHI Cai-Tu , LIU Mao-San , XU Ke-Jing . PERMANENT STEERING MAGNET. Chinese Physics C, 1986, 10(4): 452-458.
[19]	. A HIGH GRADIENT 250keV PULSED PROTON BEAM ACCELERATING EQUIPMENT. Chinese Physics C, 1981, 5(6): 722-731.
[20]	LIU MAO-SAN , CHEN REN-HUAI , WU WEN-TAI , LI SHU-ZHEN . ON THE ANALYSIS OF MAGNETIC MULTIPOLE FIELD WITH FIXED DIRECTION MAGNETIZED MULTI-SEGMENTED RING STRUCTURE. Chinese Physics C, 1981, 5(5): 623-627.

Access

Get Citation

PENG Quan-Ling and ZHAO Qi. Using Axial Magnetized Permanent Rings to Build Axial Gradient Magnetic Field[J]. Chinese Physics C, 2003, 27(4): 363-366.

PENG Quan-Ling and ZHAO Qi. Using Axial Magnetized Permanent Rings to Build Axial Gradient Magnetic Field[J]. Chinese Physics C, 2003, 27(4): 363-366. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2002-04-25
Revised: 1900-01-01

Article Metric

Article Views(4303)
PDF Downloads(555)
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

Using Axial Magnetized Permanent Rings to Build Axial Gradient Magnetic Field

Corresponding author: PENG Quan-Ling,

Institute of High Energy Physics, CAS, Beijing 100039, China2 Pingdingshan Television University, He′nan Pingdingshan 467000, China

Received Date: 2002-04-25

Accepted Date: 1900-01-01

Available Online: 2003-04-05

Abstract: Axial field produced by an axially magnetized permanent ring was studied. For two permanent magnet rings, if they are magnetized in the same direction, a nearly uniform axial field can be produced; if they are magnetized in opposite direction, an axial gradient field can be produced in the region between the two permanent rings, with the field strength changing from-B₀ to B₀. A high gradient axial magnetic field has been built by using two axially magnetized permanent rings, the measured field results agree with the PANDIRA calculation very well. It is desirable that the field gradient can be varied to match various requirements. A method to produce the variable gradient field is presented. Axial gradient field can also be used as a beam focusing facility for linear accelerator if axial periodic field can be produced. Its magnetic field is similar to that of a solenoid, in which, large stray field will leak to the outside environment. A method for shielding the outside stray field is discussed.

HTML

Reference (1)

Using Axial Magnetized Permanent Rings to Build Axial Gradient Magnetic Field

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article