Large-Area Microcalorimeter Detectors for Ultra-High-Resolution X-Ray and Gamma-Ray Spectroscopy

  title={Large-Area Microcalorimeter Detectors for Ultra-High-Resolution X-Ray and Gamma-Ray Spectroscopy},
  author={M. K. Bacrania and A. S. Hoover and P. J. Karpius and M. W. Rabin and C. Rudy and D. T. Vo and J K Beall and D. Bennett and W. R. Doriese and G J Hilton and R. D. Horansky and K S Irwin and Niti Jethava and Erlei Sassi and J. N. Ullom and L. M. Vale},
  journal={IEEE Transactions on Nuclear Science},
We discuss recent developments in using cryogenic microcalorimeter detectors for x- and gamma-ray spectroscopy. We are currently operating a detector array consisting of thirteen pixels with time-domain multiplexed readout. With a single pixel from this detector, we have measured 97.43-keV gamma rays from 153-Gd with 22-eV resolution (FWHM). We have also made the first multiplexed array measurements of plutonium x- and gamma-rays with 45-eV resolution. We are currently testing a 66-pixel next… CONTINUE READING
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