CAJ | 학술논문

单粒子效应(SEE)加速器地面模拟需要离子束具有较好的均匀度，针对回旋加速器单粒子效应模拟的束流特点，建立了一套以位置灵敏平行板雪崩探测器(Parallel Plate Avalanche Counter， PPAC)为基础的均匀度探测系统并完成了带束测试，对它的结构、工作原理、均匀度获得方法及带束测试结果进行描述。为验证PPAC测量结果准确性，在带束测试过程中，前方同时放置PET膜测量穿过PPAC探测器的粒子分布，与离子径迹测量结果对比，给出PPAC的均匀度的测量误差在5%之内。探测器具有50 mm×50 mm的灵敏面积和小于1 mm的位置分辨，符合单粒子效应实验对束流均匀度测量的要求。
단입자효응(SEE)가속기지면모의수요리자속구유교호적균균도，침대회선가속기단입자효응모의적속류특점，건립료일투이위치령민평행판설붕탐측기(Parallel Plate Avalanche Counter， PPAC)위기출적균균도탐측계통병완성료대속측시，대타적결구、공작원리、균균도획득방법급대속측시결과진행묘술。위험증PPAC측량결과준학성，재대속측시과정중，전방동시방치PET막측량천과PPAC탐측기적입자분포，여리자경적측량결과대비，급출PPAC적균균도적측량오차재5%지내。탐측기구유50 mm×50 mm적령민면적화소우1 mm적위치분변，부합단입자효응실험대속류균균도측량적요구。
The homogeneity of beam is an important physical parameter in the ground-test accelerator of single event effects (SEEs), it can affect the SEEs evaluation accuracy. Nuclear track detector cannot get the beam profile promptly. A uniformity measurement system based on the Position sensitive parallel plate avalanche detector (PPAC) was built to fulfil the homogeneity analysis in real time during the SEE test. Here its construction and principle, the method of analysis and the result of beam test are described. To validate the result of PPAC, a PET film was synchronously irradiated before the PPAC. In comparison with the obtained results of PET films observation, the uniformity value from the PPAC has an estimated maximum error of 5%. The PPAC has about 1 mm position resolution and 50 mm × 50 mm sensitive area. Which can satisfy the requirement of uniformity analysis on SEEs test by accelerator irradiation.