A new X-ray microcalorimeter based on a pixelated TES array
A new X-ray microcalorimeter based on a pixelated TES array
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基于像素化 TES 阵列的新型 X 射线微量热计
DOI：
10.1109/tasc.2003.813986
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发表时间：
2003
期刊：
影响因子：
--
通讯作者：
M. Nakazawa
中科院分区：
文献类型：
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作者：
D. Fukuda;M. Ohno;H. Takahashi;Y. Kunieda;T. Inou;M. Ohkubo;M. Ataka;M. Nakazawa
我们正在开发一种新的基于超导过渡边缘传感器（TES）作为成像传感器的X射线微量热计。该设备具有10个像素化过渡边缘传感器，带有铱薄膜。当向所有像素施加恒定偏置电压时，每个像素在略微不同的平衡温度下操作。这是由像素之间的不同热响应引起的，使得响应信号形状将根据入射X射线的位置而变化。我们已经制作了一个原型的像素阵列，并检查其性能。通过在设备上扫描准直X射线的位置依赖性测量已经成功地示出了设备能够解析其像素位置。测试设备的能量分辨率为13.1 eV（FWHM）为3 keV的X射线。
We are developing a new x-ray microcalorimeter based on superconducting transition edge sensors (TES) as an imaging sensor. This device has ten pixelated transition edge sensors with Iridium superconductive films. When a constant bias voltage is applied to all pixels, each pixel is operated at slightly different equilibrium temperature. This arises from the different thermal responses between pixels, so that response signal shapes would vary according to the position of the incident x-ray. We have fabricated a prototype of the pixelated array and examined its performance. The position dependency measurements by scanning the collimated x-ray over the device have successfully shown that the device is able to resolve its pixel position. The energy resolution of a test device was 13.1 eV (FWHM) for 3 keV x-rays.