a gps-enabled vehicle-based mobile radiation detection ...dave trombino, dave campbell, and steven...

This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. Lawrence Livermore National Security, LLC

A GPS-Enabled Vehicle-Based Mobile Radiation Detection Search Tool for CTBT OSI

Presented at the SnT2013

Dave Trombino, Dave Campbell, and Steven Kreek

June, 2013

LLNL-PRES-637553

The views expressed here do not necessarily reflect the views of the United States Government, the Department of Energy, the National Nuclear Security Administration, or the Lawrence Livermore National Laboratory

Lawrence Livermore National Laboratory LLNL-PRES-xxxxxx2

OSI will initially focus on search area reduction - applying multiple techniques

Active seismic

Backpacks

Field In Situ assay

Aerial overflight

Position keeping Laboratory assay

Radar

Conductivity

Support equipment

Sampling

….


� Potential for highly variable/unknown source terms

� Harsh operational environments complicated by instruments that are:• Hard to use, often proprietary

• Difficult to maintain

• Competing with other inspector responsibilities

Application of radiation detection to OSI is likely to be challenged by a number of issues including:


� Flexibility, and scalability for highly-variable environments• Operating• Activity ranges

� Ease-of-use• Multi-mode acquisition/data display• Open for international use, non-proprietary control and

output• Supportability• Data recording and/or transmission/retrieval including

location

OSI needs mobile gamma detection capability with some key attributes….


The Lawrence Livermore National Laboratory has a long history of solving radiation detection challenges

2005

Adaptable Radiation Area Monitor 2009

Next-gen high-resolution HPGe detector (GeMini)

Detective (HPGe)

2008

Fission Meter

2005: Adaptable Radiation Area Monitor2006: UltraSpec2007: Large Area Imager2009: GeMINI2010: SrI22010: SRaDS, Statistical Radiation Detection System Software2012: PSD Plastics


Next-gen materials promise improved performance and lower cost

First-ever organic plastic scintillator with pulse-shape discrimination

SrI2 offers better gamma energy resolution….


As a leveraging opportunity, we are evaluating technology developed for mobile search� Our regional security pilot in San

Francisco Bay is field testing detection technologies, advanced communications and reach back

� Partnership between LLNL, Naval Post Graduate School and a SF Bay Regional Coalition

Fielded with multiple organizations, the LLNL-developed detection systems have been operational for a number of years

Oleg at NPS

Video from

fieldDetector Data


We’re testing operational concepts and advanced reachback on a regional (larger than an inspection area) scale� Multiple technologies

� Harsh and real operational environments• Sea and land based

implementations

System layout courtesy of Naval Post Graduate School


� Real-time radiation monitoring system with scalar and spectral data display to enable decision-making

� Operational with multiple users

� Real-time reachback and analysis support

Specific focus is on an LLNL -developed mobile detection/screening system


Tech Specs of the detection system� NaI(Tl) Detector

• Active volume— Three sizes: 4x4x4, 2x4x16, 4x4x16 demonstrated— Including ganging as many a 4 detectors

• Energy resolution: typically 6-8% at 137Cs

� Environmentally hardened

� Optional embedded communications

� Power requirements• Operates off PC laptop battery

� Operating software (next slide)

� GPS (external and/or removable)


Data is collected and displayed in multiple modes

Scalar count rate histogram

Spectral

Cou

nts

Channel

137Cs & 60Co


� Windows-based (7+) C-Sharp code operating Ortec-based acquisition hardware (digiBase)

� Provides for simple operation• Starts/Stops acquisition• Reports relative scalar rates and an alarm threshold• Tracks GPS location• Provides spectral display

— Continuous or limited duration acquisition, clearable to the user, and can be enabled or disabled

• Data saved locally w/ or w/o transmission, both data push and pull available (if networked)— Saved in ANSI Standard file format for easy import

Operating interface designed for ease of use….


� Video of a system in operation around San Francisco Bay Area

� Example of data capture and data upload over our mesh network

A couple of short demonstrations


Field demonstration using an early prototype


Upload and reach back demo

Oleg at NPS

Video from field

Detector Data


Numerous demonstrations have been performed

� Locations around the world


System is operated on a boat


Close up of approaching target


Radioactive source is located

� Picture and spectrum returned to reachback


Data is analyzed locally or can be pushed by the user to reachback


� Demonstrated a flexible radiation detection system that is scalable and could support a wide variety of OSI operational environments

� Developed and operating - using currently available commercial hardware

Conclusions


Contact

Steven KreekLawrence Livermore National Laboratory

[email protected]

a gps-enabled vehicle-based mobile radiation detection ...dave trombino, dave campbell, and steven...

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