Abstract
Small-pixel TES is promising for imaging-spectroscopy applications. Researchers demand a high-spatial-resolution energy-resolving detector for many kinds of applications. However the spatial resolution and the energy resolution are quite restricted in the present semiconductor detector, so we are developing a new pixellated array based on the transition edge sensor (TES) technology. In this measurement, we developed an Ir-TES array which consists of 9 small TESs and are voltage biased in parallel. We performed measurements at SPring-8 with 6 keV X-rays and scanned the TES using a collimator by the two-dimensional scanning method. Position dependency on pulse height and risetime has been analyzed in detail.
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