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High-timing-precision detection of single X-ray photons by superconducting nanowires.
- Source :
-
National Science Review . Jan2024, Vol. 11 Issue 1, p1-10. 10p. - Publication Year :
- 2024
-
Abstract
- Precisely acquiring the timing information of individual X-ray photons is important in both fundamental research and practical applications. The timing precision of commonly used X-ray single-photon detectors remains in the range of one hundred picoseconds to microseconds. In this work, we report on high-timing-precision detection of single X-ray photons through the fast transition to the normal state from the superconductive state of superconducting nanowires. We successfully demonstrate a free-running X-ray single-photon detector with a timing resolution of 20.1 ps made of 100-nm-thick niobium nitride film with an active area of 50  μ m by 50  μ m. By using a repeated differential timing measurement on two adjacent X-ray single-photon detectors, we demonstrate a precision of 0.87 ps in the arrival-time difference of X-ray photon measurements. Therefore, our work significantly enhances the timing precision in X-ray photon counting, opening a new niche for ultrafast X-ray photonics and many associated applications. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 20955138
- Volume :
- 11
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- National Science Review
- Publication Type :
- Academic Journal
- Accession number :
- 175672725
- Full Text :
- https://doi.org/10.1093/nsr/nwad102