Microcalorimeter design for fast-neutron spectroscopy

✍ Scribed by Niedermayr, T.; Hau, I.D.; Miyazaki, T.; Terracol, S.; Burger, A.; Lamberti, V.E.; Bell, Z.W.; Vujic, J.L.; Labov, S.E.; Friedrich, S.

• Publisher: Elsevier Science
• Year: 2004
• Tongue: English
• Weight: 191 KB
• Volume: 520
• Category: Article
• ISSN: 0168-9002
• DOI: 10.1016/j.nima.2003.11.223

✦ Synopsis

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 TiB 2 absorber. The best energy resolution obtained was 5:5 keV FWHM for a total energy deposition of 2:792 MeV by thermal neutrons.