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

Omid Noroozian, John A. B. Mates, Douglas A. Bennett +10

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 achiev…