CAJ | 학술논문

清华大学为微型脉冲强子源加速器注入研制了一套2.45 GHz ECR强流脉冲质子源和低能传输线（LEBT ）系统。质子源采用四电极系统引出能量达50 keV／75 mA的混合束，经低能传输段实现匹配注入RFQ加速器。在LEBT出口处获得了高达50 keV／60 mA的质子束，使用Allison发射度探测器在第2诊断室测得均方根归一化发射度小于0.2πmm · mrad。本文介绍强流质子源与低能传输段的调试结果，并对束流品质进行了研究。
청화대학위미형맥충강자원가속기주입연제료일투2.45 GHz ECR강류맥충질자원화저능전수선（LEBT ）계통。질자원채용사전겁계통인출능량체50 keV／75 mA적혼합속，경저능전수단실현필배주입RFQ가속기。재LEBT출구처획득료고체50 keV／60 mA적질자속，사용Allison발사도탐측기재제2진단실측득균방근귀일화발사도소우0.2πmm · mrad。본문개소강류질자원여저능전수단적조시결과，병대속류품질진행료연구。
A 2.45 GHz intense pulsed ECR proton source and low energy beam trans‐port (LEBT) system was developed by Tsinghua University for the compact pulsed had‐ron source (CPHS) .The proton injector provides proton beam into a 3.2 MeV RFQ accelerator .The 50 keV/75 mA hybrid beam extracted by a 4‐electrode extraction sys‐tem from the ion source passes through the LEBT to the RFQ entrance and the root‐mean‐square (RMS) normalized emittance is less than 0.2πmm · mrad .The commissio‐ning results of the intense proton source and low energy beam transport system were described in this paper .The beam quality was also studied .