Array-compatible transition-edge sensor microcalorimeter γ-ray detector with 42eV energy resolution at 103keV
2006; American Institute of Physics; Volume: 89; Issue: 12 Linguagem: Inglês
10.1063/1.2352712
ISSN1520-8842
AutoresBarry Zink, Joel N. Ullom, James A. Beall, K. D. Irwin, W. B. Doriese, W. D. Duncan, L.F. Vieira Ferreira, G. C. Hilton, Robert D. Horansky, C. D. Reintsema, Leila R. Vale,
Tópico(s)Thermal Radiation and Cooling Technologies
ResumoThe authors describe a microcalorimeter γ-ray detector with measured energy resolution of 42eV full width at half maximum for 103keV photons. This detector consists of a thermally isolated superconducting transition-edge thermometer and a superconducting bulk tin photon absorber. The absorber is attached with a technique compatible with producing arrays of high-resolution γ-ray detectors. The results of a detailed characterization of the detector, which includes measurements of the complex impedance, detector noise, and time-domain pulse response, suggest that a deeper understanding and optimization of the thermal transport between the absorber and thermometer could significantly improve the energy resolution of future detectors.
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