Development and characterization of a TES optical imaging array for astrophysics applications

Document Type

Conference Proceeding

Publication Date

3-11-2004

Publisher

Elsevier

Abstract

Our research group has successfully developed photon detectors capable of both time-stamping and energy-resolving individual photons at very high rates in a wide band from the near-IR through optical and into the near-UV. We have fabricated 32-pixel arrays of these Transition-Edge Sensor (TES) devices and have mounted them in an adiabatic demagnetization refrigerator equipped with windows for direct imaging. We have characterized single pixel behavior; we have also begun operating multiple pixels simultaneously, starting the scaling process towards use of the full array. We emphasize the development of a metalized mask for our array that blocks photons from hitting the inter-pixel areas and reflects them onto the TESs. We also present calibration data on detector resolution, electronics noise, and optical alignment.

Comments

LTD-10, 10th International Workshop on Low Temperature Detectors, Genoa, Italy 7-11 July 2003

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