Development of a neutron imager based on superconducting detectors

作者：Miyajima Shigeyuki^*; Yamaguchi Hiroyuki; Nakayama Hirotaka; Shishido Hiroaki; Fujimaki Akira; Hidaka Mutsuo; Harada Masahide; Oikawa Kenichi; Oku Takayuki; Arai Masatoshi; Ishida Takekazu

来源：Physica C-Superconductivity and Its Applications, 2016, 530: 98-100.

DOI：10.1016/j.physc.2016.05.022

• Superconducting detector
• Neutron detector
• Pulsed neutron

We succeeded in demonstrating a neutron detector based on a Nb superconducting meander line with a B-10 conversion layer for a neutron imager based on superconductor devices. We use a current-biased kinetic inductance detector (CB-KID), which is composed of a meander line, for detection of a neutron with high spatial resolution and fast response time. The thickness of Nb meander lines is 40 nm and the line width is narrower than 3 mu m. The area of 8 mm x 8 mm is covered by CB-KIDs, which are assembled at the center of the Si chip of the size 22 mm x 22 mm. The Nb CB-KIDs with a B-10 conversion layer output the voltage by irradiating pulsed neutrons. We have investigated gamma/n discrimination of a Nb-based CB-KID with B-10 conversion layer using a Cd plate, which indicates that a CB-KID can operate as a neutron detector under the strong gamma-ray fields.

• 出版日期2016-11-15