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Microcalorimeter design for fast-neutron spectroscopy |
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| Authors: | T. Niedermayr I. D. Hau T. Miyazaki S. Terracol A. Burger V. E. Lamberti Z. W. Bell J. L. Vujic S. E. Labov S. Friedrich |
| Affiliation: | a Lawrence Livermore National Laboratory, 7000 East Avenue, P.O. Box 808, Livermore, CA 94550, USA b Department of Nuclear Engineering, University of California, Berkeley, CA 94720, USA c Fisk Univerisity, 240 Dubois Hall, 1000 17th Avenue N, Nashville, TN 37208, USA d Y-12 National Security Complex, P.O. Box 2009, Oak Ridge, TN 37831, USA |
| Abstract: | We are developing microcalorimeters for fast-neutron spectroscopy. The goal is to develop a detector with an energy resolution of 0.1% for 1–20 MeV neutrons with an efficiency of 1%. We discuss the design of such a detector and present the first results of a transition edge sensor based microcalorimeter with a small TiB2 absorber. The best energy resolution obtained was 5.5 keV FWHM for a total energy deposition of 2.792 MeV by thermal neutrons. |
| Keywords: | Author Keywords: Neutron spectroscopy Calorimeters Low-temperature detectors |
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