Baba M, Okamura H, Hagiwara M, Itoga T, Kamada S, Yahagi Y, Ibe E
Cyclotron and Radioisotope Center, Tohoku University, 980-8578, Sendai, Japan.
Radiat Prot Dosimetry. 2007;126(1-4):13-7. doi: 10.1093/rpd/ncm005. Epub 2007 May 21.
An intense (7)Li(p,n) neutron source was installed with the K = 110-MeV azimuthally varying field (AVF) cyclotron at the Cyclotron and Radioisotope Center (CYRIC), Tohoku University, by employing a special arrangement to allow a short target-sample distance down to 1 m. The source can deliver a neutron flux around 1.5 x 10(6) n cm(-2) s(-1) with a lithium target of thickness equivalent to 2-MeV energy loss and 3-microA proton beam, which is the highest intensity in the world. The source is successfully used for (1) measurement of neutron cross sections relevant to radiation safety and radiation effect and (2) semiconductor irradiation test for single-event effect and (3) characterisation of neutron detectors and dosemeters.
在东北大学回旋加速器与放射性同位素中心（CYRIC），利用一种特殊装置将靶与样品的距离缩短至1米，在K = 110兆电子伏特方位角变化磁场（AVF）回旋加速器上安装了一个强（7）Li（p，n）中子源。该源使用厚度相当于2兆电子伏特能量损失的锂靶和3微安的质子束，可提供约1.5×10（6）个中子·厘米（-2）·秒（-1）的中子通量，这是世界上最高的强度。该源已成功用于：（1）与辐射安全和辐射效应相关的中子截面测量；（2）用于单粒子效应的半导体辐照测试；（3）中子探测器和剂量计的特性表征。
