Volume 476 - 42nd International Conference on High Energy Physics (ICHEP2024) - Dark Matter Posters
Solar axion search with TES microcalorimeters and an iron-57 absorber
T. Ikeda*, Y. Yagi, T. Hayashi, K. Tanaka, R. Ota, M. Saito, T. Homma, N. Yoshida, F. Hirayama, A. Sao, T. Kikuchi, S. Kohjiro, Y. Nakashima, N. Yamasaki and K. Mitsuda
*: corresponding author
Full text: pdf
Pre-published on: December 17, 2024
Published on: April 29, 2025
Abstract
The axion offers a compelling solution for the strong CP problem and stands as one of the promising candidates for dark matter.
One of the primary methods for axion detection involves probing gamma-ray emissions resulting from nuclear transitions mediated by axion-nucleon couplings.
Monochromatic 14.4~keV axions could be produced by de-excitation of the thermally excited $^{57}$Fe isotopes in the Sun and detected as 14.4~keV gamma-rays via the inverted production process on Earth.
We developed a Transition-Edge-Sensor (TES) microcalorimeter, featuring high energy resolution with an iron absorber.
In this report, we present the scientific objectives, experimental setup, and recent progress, including the development of a microwave multiplexer based on microstrip SQUIDs for enhanced scalability.
DOI: https://doi.org/10.22323/1.476.0771
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