Design and development of a radio frequency quadrupole linac postaccelerator for the Variable Energy Cyclotron Center rare ion beam project

S. Dechoudhury; V. Naik; M. Mondal; A. Chatterjee; H. K. Pey; T. K. Mi; A. Byopadhyay; P. Karmakar; S. Bhattacharjee; P. S. Chouhan; S. Ali; S. C. L. Srivastava; A. Chakrabarti

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Design and development of a radio frequency quadrupole linac postaccelerator for the Variable Energy Cyclotron Center rare ion beam project

机译：可变能量回旋加速器中心稀有离子束项目的射频四极直线加速器后加速器的设计与开发

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A four-rod type heavy-ion radio frequency quadrupole (RFQ) linac has been designed, constructed, and tested for the rare ion beam (RIB) facility project at VECC. Designed for cw operation, this RFQ is the first postaccelerator in the RIB beam line. It will accelerate A/q ≤ 14 heavy ions coming from the ion source to the energy of around 100 keV/u for subsequent acceleration in a number of Interdigital H-Linac. Operating at a resonance frequency of 37.83 MHz, maximum intervane voltage of around 54 kV will be needed to achieve the final energy over a vane length of 3.12 m for a power loss of 35 kW. In the first beam tests, transmission efficiency of about 90% was measured at the QQ focus after the RFQ for O5+ beam. In this article the design of the RFQ including the effect of vane modulation on the rf characteristics and results of beam tests will be presented. © 2010 American Institute of Physics Article Outline INTRODUCTION DESIGN OF THE RFQ Design of vane parameters Mechanical design and construction details Vane machining Rf structure design and measurements Rf injection system LOW ENERGY BEAM TRANSPORT (LEBT) LINE TO THE RFQ RESULTS OF BEAM TEST SUMMARY

机译：已经为VECC的稀有离子束（RIB）设施项目设计，建造并测试了四杆型重离子射频四极（RFQ）直线加速器。该RFQ专为连续操作而设计，是RIB光束线中的第一个后加速器。它将来自离子源的A / q≤14重离子加速到大约100 keV / u的能量，以便随后在多个叉指H-Linac中加速。在37.83 MHz的共振频率下运行，将需要大约54 kV的最大叶片间电压，以在3.12 m的叶片长度上获得35 kW功率损耗的最终能量。在最初的光束测试中，在对O5 +光束进行RFQ后，在QQ焦点处测得的传输效率约为90％。在本文中，将介绍RFQ的设计，其中包括叶片调制对RF特性的影响以及波束测试的结果。 ©2010美国物理研究所文章大纲RFQ的简介设计叶片参数的设计机械设计和构造的详细信息叶片加工Rf结构的设计和测量Rf注入系统低能束流传输（LEBT）线对RFQ结果的影响测试摘要

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来源
《Review of Scientific Instruments》 |2010年第2期|p.1-6|共6页
作者
S. Dechoudhury; V. Naik; M. Mondal; A. Chatterjee; H. K. Pey; T. K. Mi; A. Byopadhyay; P. Karmakar; S. Bhattacharjee; P. S. Chouhan; S. Ali; S. C. L. Srivastava; A. Chakrabarti;
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Variable Energy Cyclotron Center (VECC), 1/AF, Bidhan Nagar, Kolkata 700064, India;

Variable Energy Cyclotron Center (VECC), 1/AF, Bidhan Nagar, Kolkata 700064, India;

Variable Energy Cyclotron Center (VECC), 1/AF, Bidhan Nagar, Kolkata 700064, India;

CMERI, M.G. Avenue, Durgapur 713209, India;

Variable Energy Cyclotron Center (VECC), 1/AF, Bidhan Nagar, Kolkata 700064, India;

Variable Energy Cyclotron Center (VECC), 1/AF, Bidhan Nagar, Kolkata 700064, India;

Variable Energy Cyclotron Center (VECC), 1/AF, Bidhan Nagar, Kolkata 700064, India;

Variable Energy Cyclotron Center (VECC), 1/AF, Bidhan Nagar, Kolkata 700064, India;

UGC-DAE CSR, LB-8, Sector-III, Bidhan Nagar, Kolkata 700064, India;

Variable Energy Cyclotron Center (VECC), 1/AF, Bidhan Nagar, Kolkata 700064, India;

Variable Energy Cyclotron Center (VECC), 1/AF, Bidhan Nagar, Kolkata 700064, India;

Variable Energy Cyclotron Center (VECC), 1/AF, Bidhan Nagar, Kolkata 700064, India;

Variable Energy Cyclotron Center (VECC), 1/AF, Bidhan Nagar, Kolkata 700064, India;

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accelerator RF systems; ion accelerators; ion beams; ion sources; linear accelerators; particle beam bunching; particle beam dynamics; particle beam focusing;

机译：加速器RF系统;离子加速器;离子束;离子源;线性加速器;粒子束聚束;粒子束动力学;粒子束聚焦;

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Design and development of a radio frequency quadrupole linac postaccelerator for the Variable Energy Cyclotron Center rare ion beam project

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