Absolute Energy Measurements with Superconducting Transition-Edge Sensors for Muonic X-ray Spectroscopy at 44 keV

Autor: Daikang Yan, Joel C. Weber, Tejas Guruswamy, Kelsey M. Morgan, Galen C. O’Neil, Abigail L. Wessels, Douglas A. Bennett, Christine G. Pappas, John A. Mates, Johnathon D. Gard, Daniel T. Becker, Joseph W. Fowler, Daniel S. Swetz, Daniel R. Schmidt, Joel N. Ullom, Takuma Okumura, Tadaaki Isobe, Toshiyuki Azuma, Shinji Okada, Shinya Yamada, Tadashi Hashimoto, Orlando Quaranta, Antonino Miceli, Lisa M. Gades, Umeshkumar M. Patel, Nancy Paul, Guojie Bian, Paul Indelicato
Rok vydání: 2022
Předmět:
DOI: 10.48550/arxiv.2207.10845
Popis: Superconducting transition-edge sensor (TES) microcalorimeters have great utility in x-ray applications owing to their high energy resolution, good collecting efficiency and the feasibility of being multiplexed into large arrays. In this work, we develop hard x-ray TESs to measure the absolute energies of muonic-argon ($μ$-Ar) transition lines around 44 keV and 20 keV. TESs with sidecar absorbers of different heat capacities were fabricated and characterized for their energy resolution and calibration uncertainty. We achieved ~ 1 eV absolute energy measurement accuracy at 44 keV, and < 12 eV energy resolution at 17.5 keV.
Databáze: OpenAIRE