Longitudinal bunch length measurement of RFQ beam using in-house developed detector system

被引：0

作者：

Pandey, H. K. ^{[1
,2
]}

Dechoudhury, S. ^{[1
]}

Bhattacharyya, T. K. ^{[2
]}

Chakrabarti, A. ^{[1
]}

机构：

[1] Variable Energy Cyclotron Ctr, 1-AF Bidhan Nagar, Kolkata 700064, W Bengal, India

[2] Indian Inst Technol, ATDC, Kharagpur 721302, W Bengal, India

来源：

JOURNAL OF INSTRUMENTATION | 2017年 / 12卷

关键词：

Beam-line instrumentation (beam position and profile monitors; beam-intensity monitors; bunch length monitors); Instrumentation for heavy-ion accelerators;

D O I：

10.1088/1748-0221/12/09/T09001

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We report here the bunch width measurement of 98keV/u ion beam accelerated through a 3.4m long 37.8MHz Radio Frequency Quadruple (RFQ) linac using a minimally interceptive approach. The detector system for this measurement has been indigenously developed and is based on secondary electron emission from tungsten filament on being hit by ion beam, followed by a capacitive loaded helical resonator cavity. A Channeltron Electron Multiplier (CEM) detector is used for detection of electrons. The design, development and optimization of various parameters of bunch width detector system along with its deflector cavity applicable in the low frequency regime (few tens of MHz) have been discussed. The measured bunch profile of accelerated Nitrogen beam from RFQ is in close agreement with the estimated profile obtained via simulation.

引用

页数：14

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