25–29 May 2026
La Biodola - Isola d'Elba (Italy)
Europe/Rome timezone
Reminder: Posters are requested to be uploaded by Thursday, 21 May.

Shape-factor analysis of real-time, in-situ photon-depth spectra for land quality β--emitter assay

26 May 2026, 11:25
1h 5m
Elena Room (Hotel Hermitage)

Elena Room

Hotel Hermitage

Poster presentation Real Time Diagnostics, Digital Twin, Control, Monitoring, Safety and Security Real Time Diagnostics, Digital Twin, Control, Monitoring, Safety and Security - PS

Speaker

Kate Williams (Lancaster University)

Description

A spectral analysis method is presented to determine depths at which strontium-90 and daughter isotope yttrium-90 arise, based on their bremsstrahlung contributions to the 500-1000 keV energy region. The spectra used to demonstrate this approach were recorded real time, in-situ, in blind tubes with a cerium bromide detector comprised of a Ø10 mm x 9.5 mm crystal coupled to a full-featured MCA Topaz-SiPM digitizer. Theoretical bremsstrahlung accounting for attenuation in-situ is also presented.

Minioral Yes
IEEE Member No
Are you a student? Yes

Author

Kate Williams (Lancaster University)

Co-authors

Ms Heather Chouman (Sellafield Ltd) Mr James Graham (UKNNL) Mr John Heneghan (Sellafield Ltd) Malcolm Joyce (Lancaster University) Mr Manuel Bandala (Lancaster University) Ms Soraia Elisio (Lancaster University)

Presentation materials