Influence of New Technologies on Technical ReachbackInfluence of New Technologies on Technical Reachback Magic Maggiore: Technical Reachback Workshop 2017 O. TENGBLAD 2 Prof. Olof

Influence of New Technologies on Technical Reachback

2Magic Maggiore: Technical Reachback Workshop 2017 O. TENGBLAD

Prof. Olof TENGBLAD, IEM – CSIC Madrid SpainDr Sakari Ihantola, Imperial College London

Index

• New detector technologies

• Advantages of technical reachback

• Improvements in information management

• What will it mean to future Reachback

• Actions needed to be agreed

Magic Maggiore: Technical Reachback Workshop 2017 O. TENGBLAD 3

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)

Silicone photomultiplier (SiPM)

5

Alternative to photomultiplier tube (PMT)

+ Compact

+ Insensitive to magnetic field

+ Excellent timing

+ Low voltage (~50V)

+ Robust

+ Inexpensive

- Small surface area

- High dark-count rate (~MHz)

- Sensitive to temperature variations

SiPM arrayPMT

60Co

LaCl3

LaBr3

Classical spectrum List-mode data

Phoswich scintillator LaBr/LaCl

Magic Maggiore: Technical Reachback Workshop 2017 O. TENGBLAD

Pulse shape analysis

Generic trends


• Number of radiation detectors increases• Cheap, compact, low power

• Autonomous operation

→ Most of the detectors are not operated by radiation experts

• Richer dataStep 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

Way forwardTechnical 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


Detector system

Response

Detector technologies

Fie

ld

oper

atio

nO

pera

tion

cent

reFrom detector to response


Detector systemData Acquisition

System Events

Spectra AnalysisAlarm

adjudication

Response

Raw data

Data

Information Knowledge

Wisdom

Detector technologies

Fie

ld

oper

atio

nTe

chni

cal

reac

hbac

kO

pera

tion

cent




System Events


adjudication

Response

Raw data

Data


Wisdom

Detector technologies FPGA's, ASIC's List-mode standard

Fie

ld

oper

atio

nTe

chni

cal

reac

hbac

kO

pera

tion

cent




System Events


adjudication

Response

Raw data

Data


Wisdom

Detector technologies FPGA's, ASIC's List-mode standard

Wireless data transfer

Computer capacityArtificial intelligence

Fie

ld

oper

atio

nTe

chni

cal

reac

hbac

kO

pera

tion

cent


Magic Maggiore: Technical Reachback Workshop 2017 O. TENGBLAD

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


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.

Influence of New Technologies on Technical ReachbackInfluence of New Technologies on Technical Reachback Magic Maggiore: Technical Reachback Workshop 2017 O. TENGBLAD 2 Prof. Olof

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