Measuring longitudinal beam parameters in the low energy section of the Oak Ridge Spallation Neutron Source accelerator

被引：3

作者：

Shishlo, A. ^{[1
]}

Aleksandrov, A. ^{[1
]}

Liu, Yong ^{[2
]}

Wang, Zhijun ^{[3
]}

机构：

[1] Oak Ridge Natl Lab, POB 2008, Oak Ridge, TN 37831 USA

[2] KEK J PARC, 1-1 Oho, Tsukuba, Ibaraki 3050801, Japan

[3] Chinese Acad Sci, Inst Modern Phys, 509 Nanchang Rd, Lanzhou 730000, Gansu, Peoples R China

来源：

PHYSICAL REVIEW ACCELERATORS AND BEAMS | 2018年 / 21卷 / 09期

关键词：

D O I：

10.1103/PhysRevAccelBeams.21.092803

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Knowledge of the longitudinal beam parameters is important for understanding beam dynamics in hadron linacs. Recently, a noninterceptive method suitable for measuring the longitudinal rms Twiss parameters in the high energy part of a hadron linac was developed and experimentally verified at the Spallation Neutron Source (SNS). This work presents an extension and modification of the method to allow measurements in the low energy part of a linac. Like the original method, amplitude of the beam rf harmonic measured by the beam position monitor is used to derive the information on the bunch length. The new method was tested at the medium energy beam transfer line of the SNS accelerator. The results are in good agreement with an independent measurement of the bunch length using the longitudinal acceptance scan of the drift tube linac. The suggested method is fast, and it can be a useful part of the initial longitudinal beam tuning at the front end of hadron linacs.

引用

页数：4

共 6 条

[1]

Chao A., 2013, HDB ACCELERATOR PHYS, P39

[2] The Spallation Neutron Source accelerator system design [J].

Henderson, S. ;

Abraham, W. ;

Aleksandrov, A. ;

Allen, C. ;

Alonso, J. ;

Anderson, D. ;

Arenius, D. ;

Arthur, T. ;

Assadi, S. ;

Ayers, J. ;

Bach, P. ;

Badea, V. ;

Battle, R. ;

Beebe-Wang, J. ;

Bergmann, B. ;

Bernardin, J. ;

Bhatia, T. ;

Billen, J. ;

Birke, T. ;

Bjorklund, E. ;

Blaskiewicz, M. ;

Blind, B. ;

Blokland, W. ;

Bookwalter, V. ;

Borovina, D. ;

Bowling, S. ;

Bradley, J. ;

Brantley, C. ;

Brennan, J. ;

Brodowski, J. ;

Brown, S. ;

Brown, R. ;

Bruce, D. ;

Bultman, N. ;

Cameron, P. ;

Campisi, I. ;

Casagrande, F. ;

Catalan-Lasheras, N. ;

Champion, M. ;

Chen, Z. ;

Cheng, D. ;

Cho, Y. ;

Christensen, K. ;

Chu, C. ;

Cleaves, J. ;

Connolly, R. ;

Cote, T. ;

Cousineau, S. ;

Crandall, K. .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2014, 763 :610-673

[3]

Maruta T., 2011, P 2 INT PART ACC C S, P2592

[4] Noninterceptive method to measure longitudinal Twiss parameters of a beam in a hadron linear accelerator using beam position monitors [J].

Shishlo, A. ;

Aleksandrov, A. .

PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS, 2013, 16 (06)

[5]

Shishlo A., 2017, P 8 INT PART ACC C I, P814

[6] Measurement of longitudinal acceptance and emittance of the Oak Ridge Spallation Neutron Source Superconducting Linac [J].

Zhang, Y. ;

Galambos, J. ;

Shishlo, A. .

PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS, 2008, 11 (10)

← 1 →