Formation of very short pulse by neutron spin flip chopper for J-PARC
Formation of very short pulse by neutron spin flip chopper for J-PARC
复制标题
J-PARC 中子自旋翻转斩波器形成极短脉冲
DOI：
10.1016/j.nima.2004.04.159
复制
发表时间：
2004
影响因子：
1.4
通讯作者：
M. Hino
中科院分区：
文献类型：
--
作者：
T. Ebisawa;K. Soyama;Dai Yamazaki;S. Tasaki;K. Sakai;T. Oku;R. Maruyama;M. Hino
利用多级自旋反转斩波器研制了高信噪比、高强度的中子自旋反转斩波器。由于常规LR电路的时间常数L/R的限制，用自旋翻转斩波器很难获得小于10 μs的极短中子脉冲。我们将讨论将Ito和Takahashi[4]提出的改进推挽电路应用于带极化导的双自旋翻转斩波器中获得极短中子脉冲的方法。
We have developed neutron spin flip choppers with high S/N ratio and high intensity for pulsed sources using multi-stage spin flip choppers. It is not easy for us to obtain a very short neutron pulse less than 10 μs using a spin flip chopper, due to the time constant L/R in the normal LR circuit. We will discuss a method obtaining a very short neutron pulse applying the modified push–pull circuit proposed by Ito and Takahashi [4] to the double spin flip chopper with polarizing guides.