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High-resolution gamma-ray spectroscopy with a microwave-multiplexed transition-edge sensor array

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arxiv 1310.7287 v1 pith:NXF3LOGG submitted 2013-10-28 physics.ins-det astro-ph.IMhep-ex

Omid Noroozian , John A. B. Mates , Douglas A. Bennett , Justus A. Brevik , Joseph W. Fowler , Jiansong Gao , Gene C. Hilton , Robert D. Horansky
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Kent D. Irwin Zhao Kang Daniel R. Schmidt Leila R. Vale Joel N. Ullom
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classification physics.ins-detastro-ph.IMhep-ex
keywords readoutsensorarraychangesgamma-raylambdamicrowavemicrowave-multiplexed
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abstract

We demonstrate very high resolution photon spectroscopy with a microwave-multiplexed two-pixel transition-edge sensor (TES) array. We measured a $^{153}$Gd photon source and achieved an energy resolution of 63 eV full-width-at-half-maximum at 97 keV and an equivalent readout system noise of 86 pA/$\sqrt{\text{Hz}}$ at the TES. The readout circuit consists of superconducting microwave resonators coupled to radio-frequency superconducting-quantum-interference-devices (SQUID) and transduces changes in input current to changes in phase of a microwave signal. We use flux-ramp modulation to linearize the response and evade low-frequency noise. This demonstration establishes one path for the readout of cryogenic X-ray and gamma-ray sensor arrays with more than $10^3$ elements and spectral resolving powers $R=\lambda/\Delta\lambda > 10^3$.

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Precision Spectroscopy of Antiprotonic Atoms for Investigation of Low-energy Antinucleon-nucleus Interactions

    nucl-ex 2025-01 conditional novelty 5.0 of 10

    The authors propose using a TES microcalorimeter and calcium isotopes with well-known nucleon densities to measure the isovector part of the antiproton-nucleus optical potential.

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