Influence of New Technologies on Technical Reachback

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2 Influence of New Technologies on Technical Reachback Prof. Olof TENGBLAD, IEM CSIC Madrid Spain Dr Sakari Ihantola, Imperial College London 2

3 Index New detector technologies Advantages of technical reachback Improvements in information management What will it mean to future Reachback Actions needed to be agreed 3

4 New detector materials High energy resolution: LaBr3, CeBr3, and SrI2. Combined gamma and neutron detection: Cs2LiLaBr6:Ce and Cs2LiYCl6:Ce (CLYC) Robustness and chemical stability: CYGAG:Ce (transparent ceramic material) Detector energy resolution (FWHM (%) at 662 kev) 4

5 Silicone photomultiplier (SiPM) Alternative to photomultiplier tube (PMT) + Compact - Small surface area + Insensitive to magnetic field - High dark-count rate (~MHz) + Excellent timing - Sensitive to temperature variations + Low voltage (~50V) + Robust + Inexpensive SiPM array PMT 5

6 Pulse shape analysis Phoswich scintillator LaBr/LaCl 60C o List-mode data Classical spectrum LaCl3 LaBr3

7 Generic trends Number of radiation detectors increases Cheap, compact, low power Autonomous operation Most of the detectors are not operated by radiation experts Richer data Step 1: Count rate Step 2: Energy information (spectra) Step 3: Time stamped events (list mode) Step 4: Pulse-shape analysis (neutron/gamma) Step 5: Segmented detectors (imaging) Data analysis in field gets harder 7

8 Way forward Technical Reachback Radiation specialists provide remote expert support for field officers Field officers not radiation expert Single expert can support multiple field officers Field officers focus on their core activity (not radiation) Complex analysis simpler to do in office Move data, not people 8

9 Detector system Detector technologies Operation centre Field operation From detector to response Response 9

10 Field operation From detector to response Detector system Data Acquisition System Raw data Detector technologies Information Technical reachback Events Data Spectra Analysis Knowledge Alarm adjudication Operation centre Wisdom Response 10

11 Field operation From detector to response Detector system Detector technologies Data Acquisition System FPGA's, ASIC's Technical reachback Information Data Spectra Analysis Events Raw data List-mode standard Knowledge Alarm adjudication Operation centre Wisdom Response 11

12 Field operation From detector to response Detector system Detector technologies Data Acquisition System FPGA's, ASIC's Events Raw data List-mode standard Wireless data transfer Operation centre Technical reachback Information Data Spectra Analysis Computer capacity Artificial intelligence Knowledge Alarm adjudication Wisdom Response 12

13 Standard for technical reachback? List-mode standard opens up the possibility to use new detector technologies Reachback is needed to take these into efficient use for nuclear security Nature of reachback services 24/7 operation favoured Most of the time not much happening Very high demand on RN events Would greatly benefit from shared resources Data can be shared only if protocol is agreed on

14 Thank you! Open for Discussion This work has received funding from the European Union s Horizon 2020 research and innovation programme. The European Commission s support is gratefully acknowledged. The views expressed in this document are purely those of the writer and may not in any circumstances be regarded as stating an official position of the European Commission. Magic Maggiore: Technical Reachback Workshop 2017 O. TENGBLAD 14