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Detection of x rays by a surface acoustic delay line in contact with a diamond crystal.
Appl. Phys. Lett. 118:133501 (2021)
Publ. Version/Full Text
DOI
In this study, we present proof of concept for an x-ray detector. The hybrid device consists of a synthetic single crystal diamond in mechanical contact with a piezoelectric lithium niobate surface acoustic wave (SAW) delay line. Upon x-ray irradiation, the diamond crystal experiences a change in conductivity, which, in turn, very sensitively influences the SAW transmission on the delay line. This change in SAW attenuation is directly used to monitor the x-ray beam intensity. The SAW attenuation shows a monotonic variation with dose rate D in the studied range between 100 and 1800 μGy/s. While the response time leaves room for further improvement, the SAW detection principle offers the unique possibility for wireless remote powering and sensing.
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Publication type
Article: Journal article
Document type
Scientific Article
ISSN (print) / ISBN
0003-6951
e-ISSN
1077-3118
Journal
Applied Physics Letters
Quellenangaben
Volume: 118,
Issue: 13,
Article Number: 133501
Publisher
American Institute of Physics (AIP)
Publishing Place
1305 Walt Whitman Rd, Ste 300, Melville, Ny 11747-4501 Usa
Non-patent literature
Publications
Reviewing status
Peer reviewed
Institute(s)
Institute of Radiation Medicine (IRM)
Grants
Deutsche Forschungsgemeinschaft
Helmholtz Research School of Radiation Sciences (RS2)
Helmholtz Research School of Radiation Sciences (RS2)