Neutron Transmission CB-KID Imager Using Samples Placed at Room Temperature

期刊论文
发表日期：

2024年2月7日

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

摘要

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 75.2 °C 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 $\sim$ $\sim$ 25 μm and length $\sim$ $\sim$ 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 $\sim 10 {\upmu }\text{m}$ $\sim 10 μ m$ 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.