GEOSCAN Search Results: Fastlink


TitleEnd-user experience with the SCoTSS Compton imager and directional survey spectrometer
AuthorSinclair, L EORCID logo; Saull, P R B; McCann, A; Murtha, N; Mantifel, R; Ouellet, C; Drouin, P L; Macleod, A M L; Beckman, B; Fairbrother, B; Le Gros, B; Summerell, I; Hovgaard, J; Monkhouse, S; Stanescu, F; Jonkmans, G
Source2018 Symposium on Radiation Measurements and Applications (SORMA XVII), abstract book; 2019 p. 93 Open Access logo Open Access
LinksOnline - En ligne (complete volume - volume complet, PDF, 3.35 MB)
Alt SeriesNatural Resources Canada, Contribution Series 20180164
PublisherNational Nuclear Security Administration (United States)
MeetingSORMA XVII - 2018 Symposium on Radiation Measurements and Analysis; Ann Arbor, MI; US; June 11-14, 2018
Mediapaper; on-line; digital
File formatpdf
Subjectsgeophysics; Science and Technology; Health and Safety; geophysical surveys; radiometric surveys; gamma-ray spectrometers; radioactivity; in-field instrumentation; Silicon Compton Telescope for Safety and Security (SCoTSS); Technology; Research and development; Emergency services
ProgramCanadian Hazard Information Service
Released2019 06 01
AbstractThe Silicon photomultiplier-based Compton Telescope for Safety and Security (SCoTSS) has been developed incorporating end-user requirements into the design process. The end-user group includes those responsible for mobile survey in the event of a radiological or nuclear accident, those responsible for radiation survey support to security operations at major events and at Canadian borders, as well as some of those responsible for Canadian defense applications. The result is a high sensitivity rugged mobile survey and mapping instrument, capable of direction reconstruction in motion, as well as imaging of a field of view. The SCoTSS development program has reached a technology readiness level of eight, and we are proceeding with field trials of the instrument in high fidelity operational environments. Prospective end users have been involved in trial set up and execution, assuring applicability in their mission spaces. SCoTSS has been subject to trials involving hidden sources, heavily shielded sources, open sources distributed over a large area, source moving with respect to imager, and congested built environments. We present here the results of those end-user experiences including a critical examination of required performance features for a fieldable device both in real time and post-acquisition. We present quantitative performance measures under service conditions.
Summary(Plain Language Summary, not published)
This manuscript describes recent advances made to the performance of the SCoTSS gamma imager in response to trials conducted with prospective end users of the instrument. It is argued that it is important for the imager to be able to determine a direction anywhere in space. One algorithm to calculate this direction is presented and the directional precision for this method is quantified. It is also argued that the imager must be highly sensitive. The time required for the imager to produce an image of a certain precision is presented. This quantity is calculated also for a commercially available device made with a competing technology. The two responses of the two devices are compared and it is shown that the SCoTSS imager, being much more sensitive, takes a much shorter time to produce an image of a certain precision.

Date modified: