Neutron transmission CB-KID imager using samples placed at room temperature

室温配置試料を用いた中性子透過CB-KID撮像装置

石田 武和*; Vu, TheDang*   ; 宍戸 寛明*; 相澤 一也  ; 奥 隆之   ; 及川 健一   ; 原田 正英   ; 小嶋 健児*; 宮嶋 茂之*; 小山 富男*; 曽山 和彦  ; 日高 睦夫*; 鈴木 聡*; 田中 真伸*; 町田 昌彦  ; 川又 修一*

Ishida, Takekazu*; Vu, TheDang*; Shishido, Hiroaki*; Aizawa, Kazuya; Oku, Takayuki; Oikawa, Kenichi; Harada, Masahide; Kojima, Kenji M*; Miyajima, Shigeyuki*; Koyama, Tomio*; Soyama, Kazuhiko; Hidaka, Mutsuo*; Suzuki, Soh Y*; Tanaka, Manobu M*; Machida, Masahiko; Kawamata, Shuichi*

We built a new cryostat to apply a current-biased kinetic inductance detector (CB-KID) for conducting neutron transmission imaging of room temperature samples under pulsed neutrons. A Wood's metal alloy of melting temperature 75.2C was placed at room temperature to inspect the measurement system at J-PARC. Since one of the four phases of Wood's metal is a fine Cd-rich needle phase (width 25 m and length 5 mm), it is suitable for observing fine mosaic structure selectively by neutron imaging. The spatial resolution of the CB-KID imager was estimated as 10 m by using a Gd Siemens-star pattern. The CB-KID system is useful to conduct transmission imaging for various materials rather easily at room temperature.