摘要
在“闪光二号”加速器产生的强流脉冲离子束(IPIB)调试过程中采用复合法进行参数诊断。主要测量质子与 C靶的核反应所产生的放射性核素的活度,从而确定离子数目。采用PIN探测器和闪烁体光电倍增管(光电管)监测瞬发γ射线和轫致辐射 X射线,用热释光探测器(TLD)监测漂移管外部的轫致辐射并确定了相应的屏蔽方法。采用偏压离子收集阵列测量离子束流密度分布,采用固体核径迹探测器 CR-39初步测量离子束流。
The preliminary experimental results for parameter diagnostics of intense
pulsed ion beams from the FLASH Ⅱ accelerator were reported. The ion number of an
intense pulsed ion beam were experimentally determined by monitoring delayed radio-
activity from protons induced nuclear reactions in a ^(12)C target. The prompt γ-rays and
diode bremsstrahlung X--rays were measured with PIN semi--conductor detector and a
ST401 plastic scintillator detector. The bremsstrahlung distribution outside of the drift
tube was detected with a thermoluminescent detector and the shielding design was also
determined. The current densities of beam were measured with biased ion collector
array. The ion beams were also recorded with a CR--39 detector.
出处
《原子能科学技术》
EI
CAS
CSCD
2004年第3期204-209,共6页
Atomic Energy Science and Technology
基金
国家自然科学基金(10375048)
国防预研基金
