Practical tests of neutron transmission imaging with a superconducting kinetic-inductance sensor

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

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

We found that the sizes of the Gd islands determined from the transmission image correlated strongly with those determined from the SEM image. We demonstrated the CB-KID could be used to identify (1) tiny voids in a thermally sprayed continuous GdO film in and (2) various mosaic morphologies and different eutectic microstructures in Wood's metal samples. The fact that the CB-KID system could be used to identify features of samples with a wide distribution of sizes and thicknesses is promising for real application of the device for imaging samples of interest to material scientists. Operating the CB-KID at higher temperatures appreciably improved the efficiency for simultaneously identifying the X and Y positions of hotspots. We also compared the detection efficiency with the PHITS simulations. We now plan to improve the detection efficiency by increasing the thickness of the B neutron conversion layer