Development of 2 dimensional array EUV superconducting tunnel junction detector

二维阵列EUV超导隧道结探测器的研制

• 批准号: 12554017
• 负责人: TAKIZAWA Yoshiyuki
• 金额: $ 8.7万
• 依托单位: The Institute of Physical and Chemical Research
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-12554017/
• 关键词: Extreme ultra violet; Superconducting tunnel junction; 2D array; EUV; STJ; 検出器; 1光子分光

Superconducting tunnel junctions (STJs) are applicable to the photon detectors with an energy resolution and a high photon counting rate. The absorption of a photon in the superconductor of the STJ generates a number of the quasiparticles proportional to the photon energy. STJs especially have a good performance for soft X-ray and extreme ultraviolet (EUV) because of high absorption below 1 keV. We are developing an energy-dispersive photon detector for EUV radiation using STJs with Al trapping layers. We evaluated the performance of the detector for EUV photons using the Synchrotron Facility at KEK-PF in Tsukuba, Japan. We achieved the energy resolution of FWHM=18 eV (including the external noise of 17.6 eV) for 55eV EUV photons with a 100 × 100 um^2 STJ. We succeeded in simultaneous read-out of several pixels. However, the energy resolution was not good under the influence of noise from the read-out circuit. As the next step, we have to improve the read-out circuit.

超导隧道结（STJ）可用于具有能量分辨率和高光子计数率的光子探测器。光子在STJ超导体中的吸收产生与光子能量成比例的准粒子。由于STJ在1 keV以下具有高吸收，因此STJ尤其对软X射线和极紫外（EUV）具有良好的性能。我们正在开发一种能量色散光子探测器的EUV辐射使用STJ与铝捕获层。我们评估的EUV光子使用的同步加速器设施在KEK-PF在筑波，日本的检测器的性能。在100 × 100 μ m^2 STJ条件下，对55 eV的EUV光子，我们获得了18 eV的能量分辨率（包括17.6 eV的外部噪声）。我们成功地同时读出了几个像素。然而，在来自读出电路的噪声的影响下，能量分辨率不是很好。作为下一步，我们必须改进读出电路。

项目成果

Y.Takizawa, T.Ikeda, T.Oku, C.Otani, K.Kawai, H.Sato, H.M.Shimizu, H.Mikami, H.Miyasaka, H.Watanabe: "Development of superconducting tunnel junctions for EUV Detectors"Surface Review and Letters. Vol.9, No.1. 561-565 (2002)

Y.Takizawa、T.Ikeda、T.Oku、C.Otani、K.Kawai、H.Sato、H.M.Shimizu、H.Mikami、H.Miyasaka、H.Watanabe：“EUV 探测器超导隧道结的开发”Surface

Y.Takizawa, T.Ebisuzaki, C.Otani, H.M.Shimizu, Y.Takahashi.: "Conceptual design of combined visible-Xray wide band telescope"Porc.of "Astronomical Telescopes and Instrumentation" SPIE Conference. Vol.4849. 227-234 (2002)

Y.Takizawa、T.Ebisuzaki、C.Otani、H.M.Shimizu、Y.Takahashi.：“组合可见光X射线宽带望远镜的概念设计”Porc.of“天文望远镜与仪器”SPIE会议。

C.Otani,T.Ikeda,H.Kato,K.Kawai,H.Miyasaka,T.Oku,W,Ootani,H.Sato,H.M.Shimizu,Y.Takizawa,H.Watanabe 他4名: "Properties of Substrate Phonon Events in Superconducting Tunnel Junctions Induced by X-ray Absorption"Japanese Journal of Applied Physics. 39巻・4B号. 171

C.Otani、T.Ikeda、H.Kato、K.Kawai、H.Miyasaka、T.Oku、W,Ootani、H.Sato、H.M.Shimizu、Y.Takizawa、H.Watanabe 和其他 4 人：“基材的特性X 射线吸收引起的超导隧道结中的声子事件“日本应用物理学杂志。第 39 卷，第 4B 期。171

Otani C., Ikeda T., Kato H., Kawai K., Miyasaka H., Oku T., Ootani W., Sato H., Shimizu H.M., Takizawa Y., Watanabe H., Nakagawa H., Akoh H., Aoyagi M., Taino T.: "Spectral Features of Substrate Phonon Events Obtained by Illuminating Superconducting Tunne

大谷 C.、池田 T.、加藤 H.、川井 K.、宫坂 H.、奥 T.、大谷 W.、佐藤 H.、清水 H.M.、泷泽 Y.、渡边 H.、中川 H.、Akoh H.

Y.Takizawa, Y.Takahashi 他3名: "Conceptual design of combined visible-Xray Wide-Band telescope"Proc.SPIE, Highly Innovative Space Telescope Concepts. 4849. 227-234 (2002)

Y.Takizawa、Y.Takahashi 和其他 3 人：“组合式可见 X 射线宽带望远镜的概念设计”Proc.SPIE，高度创新的太空望远镜概念。 4849. 227-234 (2002)