Operating principle of the superconducting neutron detector

超导中子探测器的工作原理

• 批准号: 21K14566
• 负责人: VU THEDANG
• 金额: $ 3万
• 依托单位: Osaka Metropolitan University (2022)Osaka Prefecture University (2021)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Early-Career Scientists
• 财政年份: 2021
• 资助国家: 日本
• 起止时间: 2021-04-01 至 2024-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-21K14566/
• 关键词: CB-KID; Neutron detector; Wood's metal; Temperature stability; Spatial resolution; Neutron image; Bragg-edges; Bragg-dips; Detection efficiency; Fast neutron; Neutron imaging; Superconducting detector; Operating principle; Readout circuit

We improved the stability of temperature of neutron detector better than 80uK at 5K, which gives an error in velocity lower than ±160 m/s (0.0002%) [1] under optimized PID conditions of two control loops using a Cryocon 54. This reduced the influence of velocity error to spatial resolution at near edges of detector [2]. Based on it, we built a new cryostat system to be able to mount room-temperature samples . This is in marked contrast with the former cryostat in conducting the experiments under pulsed neutrons. Especially, it performs a very high-resolution imaging because a sample is placed at the close vicinity of the CB-KID detector at a cryogenic temperature. Therefore, we can investigate various samples in a single beam time such as FeS2 ammonite, Fe2O3 ammonite, CaF2 [3], CuAl-glads, Li Grease, LiPS, etc.. This is also suitable to apply different conditions on sample during beam time, i.e., temperature, electrics, compression traction force, etc. to reveal many properties of material. We confirmed a sequential change in phase separations of low melting Wood’s metal by melting and re-solidification [1]. Neutron image becomes clearer by convenient open-beam normalization to avoid inhomogeneity beam condition and Boron conversion layer.[1] T. D. Vu, et al., Journal of Physics: Conference Series in press.[2] T. D. Vu, et al., The 3rd International Workshop on Engineering Physics, IC-MEMS-Sensors and Their Applications, HCM city, Viet Nam, November 25&26, 2022, Invited talk.[3] H. Shishido, T. D. Vu et al., Journal of Physics: Conference Series in press.

利用Cryocon 54优化了两个控制回路的PID条件，使中子探测器在5K时的温度稳定性优于80uK，速度误差小于±160 m/s(0.0002%)[1]。这降低了速度误差对探测器[2]近边缘空间分辨率的影响。在此基础上，我们建立了一个新的低温恒温系统，可以安装室温样品。这与以前的低温恒温器在脉冲中子下进行实验有明显的对比。特别是，由于样品在低温下放置在CB-KID探测器附近，因此它可以执行非常高分辨率的成像。因此，我们可以在单束时间内研究各种样品，如FeS2氨石、Fe2O3氨石、CaF2[3]、CuAl-glads、Li Grease、LiPS等。这也适用于在光束时间内对样品施加不同的条件，即温度、电学、压缩牵引力等，以揭示材料的许多特性。我们通过熔炼和再凝固[1]证实了低熔点木材金属相分离的顺序变化。通过方便的开束归一化，避免了光束的不均匀性和硼转换层，使中子图像更加清晰吴廷德，等，物理学报：会议丛刊，2010吴廷德等，第三届工程物理，ic - mems传感器及其应用国际研讨会，越南胡志明市，2022年11月25 - 26日，特邀演讲H. Shishido， T. D. Vu等，物理学报：会议系列出版。

项目成果

Experimental Studies on Spatial Resolution of a Delay-Line Current-Biased Kinetic-Inductance Detector

延迟线电流偏置动感探测器空间分辨率的实验研究

• 发表时间: 2022
• 作者: T. D. Vu;H. Shishido;K. Aizawa;T. Oku;K. Oikawa;M. Harada;K. M. Kojima;S. Miyajima;K. Soyama;T. Koyama;M. Hidaka;S. Y. Suzuki;M. M. Tanaka;A. Malins;M. Machida;S. Kawamata;T. Ishida
• 通讯作者: T. Ishida

Crystalline Orientation of CaF2 window determined by Neutron Transmission Imaging using a Delay Line Current-Biased Kinetic-Inductance Detector

使用延迟线电流偏置动感探测器通过中子透射成像确定 CaF2 窗口的晶体取向

• 发表时间: 2022
• 作者: H. Shishido;T. D. Vu;K. Aizawa;K. M. Kojima;T. Koyama;K. Oikawa;M. Harada;T. Oku;K. Soyama;S. Miyajima;M. Hidaka;S. Y. Suzuki;M. M. Tanaka;S. Kawamata;T. Ishida
• 通讯作者: T. Ishida

Narrow-area Bragg-edge transmission of iron samples using superconducting neutron sensor

使用超导中子传感器对铁样品进行窄域布拉格边传输

• DOI: 10.1088/1742-6596/2323/1/012028
• 发表时间: 2022
• 期刊: Journal of Physics: Conference Series
• 作者: Vu The Dang;Shishido Hiroaki;Aizawa Kazuya;Oku Takayuki;Oikawa Kenichi;Harada Masahide;Kojima Kenji M.;Miyajima Shigeyuki;Soyama Kazuhiko;Koyama Tomio;Hidaka Mutsuo;Suzuki Soh Y.;Tanaka Manobu M.;Malins Alex;Machida Masahiko;Ishida Takekazu
• 通讯作者: Ishida Takekazu

High Spatial Resolution Neutron Transmission Imaging Using a Superconducting Two-Dimensional Detector

使用超导二维探测器进行高空间分辨率中子透射成像

• DOI: 10.1109/tasc.2021.3111396
• 发表时间: 2021
• 期刊: IEEE Transactions on Applied Superconductivity
• 影响因子: 1.8
• 作者: Shishido Hiroaki;Nishimura Kazuma;Vu The Dang;Aizawa Kazuya;Kojima Kenji M.;Koyama Tomio;Oikawa Kenichi;Harada Masahide;Oku Takayuki;Soyama Kazuhiko;Miyajima Shigeyuki;Hidaka Mutsuo;Suzuki Soh Y.;Tanaka Manobu M.;Kawamata Shuichi;Ishida Takekazu
• 通讯作者: Ishida Takekazu

Superconducting neutron transmission imaging for investigating a sequential change in phase separations of low-melting Wood’s metal

超导中子透射成像用于研究低熔点伍德金属相分离的连续变化

• 发表时间: 2022
• 作者: T. D. Vu;H. Shishido;K. Aizawa;T. Oku;K. Oikawa;M. Harada;K. M. Kojima;S. Miyajima;K. Soyama;T. Koyama;M. Hidaka;S. Y. Suzuki;M. M. Tanaka;A. Malins;M. Machida;S. Kawamata;T. Ishida
• 通讯作者: T. Ishida