Application of GEANT4 to the Simulation of High Energy-Resolution Microcalorimeter Detectors

Andrew S. Hoover(Los Alamos National Laboratory), M. K. Bacrania(Los Alamos National Laboratory), Pete J. Karpius(Los Alamos National Laboratory), Michael W. Rabin(Los Alamos National Laboratory), C. R. Rudy(Los Alamos National Laboratory), Duc Vo(Los Alamos National Laboratory), James A. Beall(National Institute of Standards and Technology), W. B. Doriese(National Institute of Standards and Technology), G. C. Hilton(National Institute of Standards and Technology), Robert D. Horansky(National Institute of Standards and Technology), K. D. Irwin(National Institute of Standards and Technology), Joel N. Ullom(National Institute of Standards and Technology), Leila R. Vale(National Institute of Standards and Technology)
IEEE Transactions on Nuclear Science
August 1, 2009
10.1109/tns.2009.2022160
Cited by 5

Abstract

GEANT4 is a versatile Monte Carlo code for simulating the interactions of radiation with matter. GEANT4 has proven to be an effective toolkit for the simulation of a wide variety of detectors. We are interested in the application of GEANT4 to a new type of sensor technology being developed for X-ray and gamma-ray measurements. Microcalorimeter detectors based on transition-edge sensors coupled to bulk absorbers are an emerging technology for hard X-ray and soft gamma-ray measurements with unprecedented energy resolution. In this work, we assess the ability of the GEANT4 electromagnetic physics package to reproduce measured microcalorimeter data. We also use the simulations to explore the design space of absorber materials and cryostat design.

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