Application of hard x-ray and gamma-ray TES microcalorimeters at an accelerator facility

Published

January 24, 2025

Author(s)

Takeshi Saito, Shinji Okada, Yuichi Toyoma, Toshiyuki Azuma, Gonçalo Baptista, Daniel Becker, Douglas Bennett, William Doriese, Joseph Fowler, Johnathon Gard, Tadashi Hashimoto, Ryota Hayakawa, Tasuku HAYASHI, Yuto Ichinohe, Josef Imrek, Paul Indelicato, Tadaaki Isobe, Sohtaro Kanda, Naritoshi Kawamura, John Mates, Yasuhiro Miyake, Kelsey Morgan, Hirofumi Noda, Galen O'Neil, Takuma Okumura, Nancy Paul, Daniel Schmidt, Kouichiro Shimomura, Patrick Strasser, Daniel Swetz, Tadayuki Takahashi, Motonobu Tampo, Joel Ullom, Izumi Umegaki, Joel Weber, Shinya Yamada, Daikang Yan

Abstract

The x-ray spectroscopy of the muonic atom has attracted atomic, nuclear, and particle physicists since its discovery. The properties of a muonic atom, such as its binding energy or atomic radius, are different from an ordinary atom because of the difference in the mass between the muon and electron. Our collaboration has employed superconductor transition-edge sensor (TES) microcalorimeters for the x-ray spectroscopy of the muonic atom. Thanks to the recent detector development, the 44-keV lines from muonic Ar, which is important for the precision test of bound-state quantum electrodynamics, and the 76-keV lines from muonic Si, which is of interest from the viewpoint of the measurement of nuclear radii, have been reached by the dynamic range of the state-of-art TES microcalorimeters. An accelerator facility that can produce a high-intensity muon beam is necessary for such spectroscopic experiments. We performed a commissioning experiment of the hard x-ray and gamma-ray TES microcalorimeter at the J-PARC MLF MUSE muon beam line. The energy resolution, gain stability, and performance of timing selection of the pulses were evaluated in the environment of a large-scale accelerator facility.

Proceedings Title

IEEE Transactions on Applied Superconductivity

Conference Dates

September 2-6, 2024

Conference Location

Salt Lake City, UT, US

Conference Title

Applied Superconductivity

Pub Type

Conferences

Keywords

Transition-edge sensors (TES) devices, Superconducting microcalorimeters, Instrumentation and readout of superconducting devices

Citation

Saito, T. , Okada, S. , Toyoma, Y. , Azuma, T. , Baptista, G. , Becker, D. , Bennett, D. , Doriese, W. , Fowler, J. , Gard, J. , Hashimoto, T. , Hayakawa, R. , Hayashi, T. , Ichinohe, Y. , Imrek, J. , Indelicato, P. , Isobe, T. , Kanda, S. , Kawamura, N. , Mates, J. , Miyake, Y. , Morgan, K. , Noda, H. , O'Neil, G. , Okumura, T. , Paul, N. , Schmidt, D. , Shimomura, K. , Strasser, P. , Swetz, D. , Takahashi, T. , Tampo, M. , Ullom, J. , Umegaki, I. , Weber, J. , Yamada, S. and Yan, D. (2025), Application of hard x-ray and gamma-ray TES microcalorimeters at an accelerator facility, IEEE Transactions on Applied Superconductivity, Salt Lake City, UT, US (Accessed October 17, 2025)