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Center Independent Research & Development: GSFC IRAD

Cryocooler and Thermal Systems for Improved GeD Gamma-ray Imaging and Spectroscopy

Active Technology Project

Project Introduction

Place Germanium detectors (GeDs) in a few-MeV γ-ray Compton instrument on a satellite will enable unprecedented insight into nuclear astrophysics, key multimessenger synergies, including with X-rays and gravitational waves, and new heliophysics applications. GeDs, now demonstrating ~100x improvement in measurement capabilities, require a low noise cryocooler system with sufficient thermal control for operation in space. We will develop and characterize such a cryocooler system using low cost, commercial parts now available.

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