Testing, Installation, Commissioning and First Operation of the ISIS RFQ Pre-Injector Upgrade
Testing, Installation, Commissioning and First Operation of the ISIS RFQ Pre-Injector Upgrade
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ISIS RFQ 预喷射器升级的测试、安装、调试和首次运行
DOI：
10.1109/pac.2005.1590531
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发表时间：
2005
期刊：
影响因子：
--
通讯作者：
M. Whitehead
中科院分区：
文献类型：
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作者：
A. Letchford;D. Faircloth;D. Findlay;M. Perkins;A. Stevens;M. Whitehead
位于卢瑟福阿普尔顿实验室(Oxon。ISIS是目前世界上最强烈的脉冲散裂中子源，以50赫兹的频率向钨靶发射160千瓦的800 MeV质子。一项主要的设施升级计划涉及建设第二个10赫兹目标，并将总光束功率增加高达50%（即高达240千瓦）。为了实现将平均光束电流增加到300 μA的计划，同时保持当前可控的光束损耗水平，同步加速器中安装了四个二次谐波射频腔，直线加速器中老化的Cockcroft-Walton预注入器已被665 keV， 202.5 MHz， 4杆射频四极杆（RFQ）所取代。本文介绍了RFQ预喷油器升级的广泛测试、安装、调试和成功的初始运行。
Situated at the Rutherford Appleton Laboratory (Oxon., UK), ISIS is currently the world's most intense pulse spallation neutron source, delivering 160 kW of 800 MeV protons to a tungsten target at 50 Hz. A major facility upgrade programme involves the construction of a second, 10 Hz target and an increase in the total beam power of up to 50% (i.e. up to 240 kW). To achieve the planned increase in average beam current to 300 μA whilst maintaining the current manageable levels of beam loss, four 2nd harmonic RF cavities have been installed in the synchrotron and the ageing Cockcroft-Walton preinjector in the linac has been replaced with a 665 keV, 202.5 MHz, 4-rod Radio Frequency Quadrupole (RFQ). This paper describes the extensive testing, installation, commissioning and successful initial operation of the RFQ pre-injector upgrade.