Effects of linear quadrupole fringe field overlap on transverse matching to an radio frequency quadrupole

被引：2

作者：

Xiao, C. ^{[1
]}

Groening, L. ^{[1
]}

Gerhard, P. ^{[1
]}

Kaiser, M. S. ^{[1
]}

Maier, M. ^{[1
]}

Mickat, S. ^{[1
]}

Vormann, H. ^{[1
]}

机构：

[1] GSI Helmholtzzentrum Schwerionenforsch GmbH, D-64291 Darmstadt, Germany

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2021年 / 1004卷

关键词：

LEBT; Transfer matrix; Hard-edge quadrupolar field; Singlet fringe field; RFQ; BEAM; INTERFERENCE;

D O I：

10.1016/j.nima.2021.165372

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Along many low energy beam transport (LEBT) systems transverse hadron beam matching to a subsequent radio frequency quadrupole (RFQ) is performed by magnetic quadrupole multiplets. Large apertures combined with short distances between the quadrupoles lead to overlap of individual singlet fields and significantly impact on the effective beam optics. Systematic measurements of beam transmission through an RFQ have been done and compared to beam dynamics simulations. For the latter, simplified hard-edge quadrupole fields were replaced by measured field data. It turned out that the hard-edge model is not sufficiently accurate to achieve acceptable agreement between calculated and measured beam properties.

引用

页数：8

共 24 条

[1]

Aleksandrov A., P 2001 PART ACC C CH

[2]

[Anonymous], 1998, WILEY SER BEAM PHYS

[3] Particle-in-cell code BEAMPATH for beam dynamics simulations in linear accelerators and beamlines [J].

Batygin, YK .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2005, 539 (03) :455-489

[4]

Batygin Yuri, COMMUNICATION

[5] Suppression of space charge induced beam halo in nonlinear focusing channel [J].

Batygin, Yuri K. ;

Scheinker, Alexander ;

Kurennoy, Sergey ;

Li, Chao .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2016, 816 :78-86

[6] Comprehensive comparison of two tracking codes for single-particle dynamics evaluation of a next-generation storage ring light source [J].

Borland, Michael ;

Sun, Yipeng ;

Huang, Xiaobiao .

PHYSICAL REVIEW ACCELERATORS AND BEAMS, 2019, 22 (11)

[7]

Brown IanG., 1989, PHYS TECHNOLOGY ION

[8] Study on the fringe field and the field interference effects of quadrupoles in the Rapid Cycling Synchrotron of the China Spallation Neutron Source [J].

Chen, Jianliang ;

Xu, Shouyan ;

Lu, Xiaohan ;

An, Yuwen ;

Li, Yong ;

Wang, Sheng .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2019, 927 :424-428

[9] Consideration of fringe field overlap of quadrupoles in a compact THz-FEL prototype [J].

Chen, Qushan ;

Qin, Bin .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2020, 959

[10]

Crandall K.R., 1997, Los Alamos National Laboratory Report

← 1 2 3 →