Study of HLS Injection System with DC Assistant Bump

FAN KuanJun; WANG XiangQi; PEI YuanJi

Chinese Physics C> 2000, Vol. 24> Issue(7) : 676-680

Study of HLS Injection System with DC Assistant Bump

National Synchrotron Radiation Lab.,University of Science and Technology of China,Hefei 230029

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Abstract：
Hefei synchrotron Light Source(HLS) presently has three kickers for injection,and different lattices will form different shapes of bump orbits In order to relieve the dependence between bump and lattice,a compact injection scheme,in which four kickers are located at the same straight section,is proposed.Because the straight section for injection is too short,it needs kicker to produce strong magnetic fields.This paper looks into the possibilities of using orbit correcting trim coils to make assistance DC bump orbit to reduce kickers strength.The different schemes and their advantages are discussed.

References

[1]

. WANG X Q ,PEL YuanJi et al.The Multi–Turn Injection System for the HESYRL Electron Storage Ring .Pro .Int.Conf.Synchrotron RadiationAppl.1989.2. SHANG Lei,WANG X Q et al.Nuc.Ins . Meth .In Phys.Res.,1998,A4 0 6 :177— 181 3. LIUR Z ,First Consideration son Three Kicker Injection Into Low Emittance Configuration .SPEAR 3,SSRLACD –NOTE 2 3,19844. Fieguth T ,Bloom E et al.Injection System for the PEPⅡ Asymmetric B Factory at SLAC .SLAC –PUB – 5775,LBL –32 0 75,March 1992 (A)5. LIUR Z .Additions To“PATRICIA”the Non –linear Effects Treating Program .SSRLACD –NOTE ,April1984 6. Wiedemann H .User's Guide for PATRICIA .PTM – 2 30 ,Feb .19817. WANG XiangQi,PEI YuanJi et al.The Progress of Four–Kicker–bump Injection .In :Pei Yuanjied.Pro.of 2th National Symp .On Part.Acc.Tech .July .1998.12 1— 12 4(王相綦 ,裴元吉等 .四冲击磁铁凸轨注入系统的研制进展 .见 :裴元吉等编 .第二届全国加速器技术交流会论文集 .合肥 .1998.7.12 1— 12 4 )

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FAN KuanJun, WANG XiangQi and PEI YuanJi. Study of HLS Injection System with DC Assistant Bump[J]. Chinese Physics C, 2000, 24(7): 676-680.

FAN KuanJun, WANG XiangQi and PEI YuanJi. Study of HLS Injection System with DC Assistant Bump[J]. Chinese Physics C, 2000, 24(7): 676-680. shu

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Received: 1999-05-30
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Study of HLS Injection System with DC Assistant Bump

Corresponding author: FAN KuanJun,

National Synchrotron Radiation Lab.,University of Science and Technology of China,Hefei 230029

Received Date: 1999-05-30
Accepted Date: 1900-01-01
Available Online: 2000-07-05

Abstract: Hefei synchrotron Light Source(HLS) presently has three kickers for injection,and different lattices will form different shapes of bump orbits In order to relieve the dependence between bump and lattice,a compact injection scheme,in which four kickers are located at the same straight section,is proposed.Because the straight section for injection is too short,it needs kicker to produce strong magnetic fields.This paper looks into the possibilities of using orbit correcting trim coils to make assistance DC bump orbit to reduce kickers strength.The different schemes and their advantages are discussed.