| Title | End-user experience with the SCoTSS Compton imager and directional survey spectrometer |
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| Author | Sinclair, L E ;
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 |
| Source | 2018 Symposium on Radiation Measurements and Applications (SORMA XVII), abstract book; 2019 p. 93  Open Access |
| Links | Online - En ligne (complete volume - volume
complet, PDF, 3.35 MB)
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| Image |  |
| Year | 2019 |
| Alt Series | Natural Resources Canada, Contribution Series 20180164 |
| Publisher | National Nuclear Security Administration (United States) |
| Meeting | SORMA XVII - 2018 Symposium on Radiation Measurements and Analysis; Ann Arbor, MI; US; June 11-14, 2018 |
| Document | book |
| Lang. | English |
| Media | paper; on-line; digital |
| File format | pdf |
| Subjects | geophysics; 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 |
| Program | Canadian Hazard Information Service |
| Released | 2019 06 01 |
| Abstract | The 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. |
| GEOSCAN ID | 308477 |
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