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X-ray detection using a superconducting transition-edge sensor microcalorimeter with electrothermal feedback
Abstract
We have developed a new type of x-ray detector based on a superconducting transition-edge thermometer operated near 100 mK. A superconducting quantum interference device is used to measure the current through the thermometer, and negative electrothermal feedback is used to improve the energy resolution and shorten the thermal time constant. We have used a detector mounted on a scanning electron microscope to measure the energy of titanium Kα (4.5 keV) fluorescence x rays with a resolution better than 14 eV full width at half-maximum. Using two other devices, we have measured an energy resolution for Joule heat pulses of 2.6 eV at 1 keV and 0.2 eV at 4 eV, the best reported for any calorimeter. An electrical noise equivalent power of 3×10−18 W/√Hz was also measured, suggesting the use of these detectors as infrared bolometers.
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Cited by
A broadband superconducting detector suitable for use in large arrays
Day, P. K., LeDuc, H. G., Mazin, B. A., Vayonakis, A., & Zmuidzinas, J. (2003) · Nature · doi:10.1038/nature02037 · Cited by 1,380
Cabrera, B., Clarke, R. M., Colling, P., Miller, A. J., Nam, S., & Romani, R. W. (1998) · Applied Physics Letters · doi:10.1063/1.121984 · Cited by 352
Impact of ionizing radiation on superconducting qubit coherence
Vepsäläinen, A. P., Karamlou, A. H., Orrell, J. L., Dogra, A. S., Loer, B., Vasconcelos, F., Kim, D. K., Melville, A. J., Niedzielski, B. M., Yoder, J. L., et al. (2020) · Nature · doi:10.1038/s41586-020-2619-8 · Cited by 230
Metadata
- Authors
- Irwin, K. D., Hilton, G. C., Wollman, D. A., & Martinis, J. M.
- Venue
- Applied Physics Letters
- Publisher
- AIP Publishing
- Published
- 1996-09-23
- Volume
- 69
- Issue
- 13
- Pages
- 1945-1947
- ISSN
- 0003-6951 (ISSN-L)
- 1077-3118
- OpenAlex
- W2050628481
- Cited by
- 229
- References
- 0
- FWCI
- 8.70
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: X-ray detection using a superconducting transition-edge sensor microcalorimeter with electrothermal feedback. https://app.cochat.ai/papers/10.1063/1.117630
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- Irwin, K. D., Hilton, G. C., Wollman, D. A., & Martinis, J. M. (1996). X-ray detection using a superconducting transition-edge sensor microcalorimeter with electrothermal feedback. Applied Physics Letters. https://doi.org/10.1063/1.117630
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