Radio frequency measurements and tuning of the China Material Irradiation Facility RFQ

被引：9

作者：

Li, Chenxing ^{[1
,2
,3
]}

He, Yuan ^{[1
]}

Wang, Fengfeng ^{[1
]}

Yu, Peiyan ^{[1
,3
]}

Yang, Lei ^{[1
,3
]}

Li, Chunlong ^{[1
]}

Wang, Wenbin ^{[1
]}

Xu, Xianbo ^{[1
]}

Shi, Longbo ^{[1
]}

Ma, Wei ^{[1
,3
]}

Sun, Liepeng ^{[1
]}

Lu, Liang ^{[1
]}

Wang, Zhijun ^{[1
]}

Shi, Aimin ^{[1
]}

Wang, Tieshan ^{[2
]}

机构：

[1] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China

[2] Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Gansu, Peoples R China

[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2018年 / 890卷

基金：

中国国家自然科学基金;

关键词：

Bead-pull measurement; RFQ tuning; Multi-port coupling; Q value measurement;

D O I：

10.1016/j.nima.2018.02.047

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The full assembly and alignment of the China Material Irradiation Facility RFQ have been completed. Before the completion, the assembly and braze of single segments had been done. Radio frequency measurements of each module with dummy extension undercuts were performed before and after braze. The results reveal that there is no unexpected deformation after braze. After the full assembly, RF measurements and tuning have been performed in order to compensate the errors originated from the fabrication, braze and assembly. The impact of these errors on the field distribution is depressed to a level that is restricted by beam dynamics simulation. In this paper, the procedure of radio frequency measurement and tuning will be expatiated and the ultimate RF parameters of the cavity after tuning will be presented.

引用

页码：43 / 50

页数：8

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