Energy-resolved neutron imaging with high spatial resolution using a superconducting delay-line kinetic inductance detector

超伝導遅延時間型運動インダクタンス検出器を用いた高空間分解能のエネルギー分解型中性子イメージング

飯澤 侑貴*; 宍戸 寛明*; 西村 和真*; Vu, TheDang*   ; 小嶋 健児*; 小山 富男*; 及川 健一   ; 原田 正英   ; 宮嶋 茂之*; 日高 睦夫*; 奥 隆之   ; 曽山 和彦  ; 相澤 一也  ; 鈴木 聡*; 石田 武和*

Iizawa, Yuki*; Shishido, Hiroaki*; Nishimura, Kazuma*; Vu, TheDang*; Kojima, Kenji M*; Koyama, Tomio*; Oikawa, Kenichi; Harada, Masahide; Miyajima, Shigeyuki*; Hidaka, Mutsuo*; Oku, Takayuki; Soyama, Kazuhiko; Aizawa, Kazuya; Suzuki, Soh*; Ishida, Takekazu*

Neutron imaging is one of the key technologies for non-destructive transmission testing. Recent progress in the development of intensive neutron sources allows us to perform energy-resolved neutron imaging with high spatial resolution. We have been developing a neutron imager aiming at conducting high spatial and temporal resolution imaging based on a delay-line neutron detector, called the current-biased kinetic-inductance detector, with a conversion layer B. The detector allowed us to obtain a neutron transmission image with four signal readout lines. Herein, we expanded the sensor active area, and improved the spatial resolution of the detector. We examined the capability of high spatial resolution neutron imaging over the sensor active area of 15 15 mm for various samples, including biological and metal ones. We also demonstrated an energy-resolved neutron image in which stainless-steel specimens were discriminating of other specimens with the aid of the Bragg edge transmission.