GAMMA AND NEUTRON IMAGING€¦ · Improvement of NANOPIX miniaturized gamma camera for nuclear waste management and characterization Advanced processing electronics Advanced algorithms

GAMMA AND NEUTRON IMAGINGFOR NUCLEAR INDUSTRY AND HOMELAND SECURITY APPLICATIONS

Vincent SCHOEPFF – [email protected]

G. Amoyal, K. Boudergui, F. Carrel, O. Gal, M. Gendreau, M. Gmar, H. Lemaire, M. Imbault, C. Lynde, Y. Moline, J-P. Poli

List, Institute of CEA Tech, Paris-Saclay University, F-91191 GIF-SUR-YVETTE Cedex, FRANCE

01VISUALIZE RADIOACTIVITY

WHAT IS GAMMA IMAGING?

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Accidental situationsNuclear waste

disposal

Operational

Radiation Protection

Dismantling &

decommissioning

Homeland Security Medical radiophysicsBorder monitoring

VISUALIZE RADIOACTIVITY…… A CHALLENGE FOR NUMEROUS APPLICATIONS

Vincent SCHOEPFF | Gamma & Neutron Imaging for Nuclear Industry and Homeland Security Applications

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VISUALIZE RADIOACTIVITY…… THE OBJECTIVE OF GAMMA IMAGING

• Superimposition of a gamma image on a visible image

• Remote visualization of hot spots

• Information on intensity / dose rate


02FROM CARTOGAM TO NANOPIX

A LONG (HI)STORY OF GAMMA IMAGING AT CEA

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FROM CARTOGAM TO NANOPIX…… THE FIRST GENERATION OF GAMMA IMAGER

CARTOGAM

- Pinhole (collimator)

- Scintillator

- CCD Camera 40 cm long

17 kg


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FROM CARTOGAM TO NANOPIX…… THE BREAKTHROUGH OF MEDIPIX TECHNOLOGIES

Direct conversion of

gamma to electric signalImprovement in size

/ weight of system

Vs

Early applied researches carried out in the frame of 2 PhD Thesis:

Marc Million – 1999 – Design of a high energy gamma semiconductor detector for gamma mapping

Erwan Manach – 2005 – Etude, tests et mise au point d'un détecteur semiconducteur pixélisé en mode

comptage pour l'imagerie gamma dans les installations nucléaires

MPX 1

MPX 2


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FROM CARTOGAM TO NANOPIX…… GAMPIX, A (MORE THAN) SECOND GENERATION IMAGER

Visible camera

Medipix2 detectorCoded masks

Prototype CEA

USB Interface

GAMPIX, a first prototype of Second Generation Gamma Camera

15 cm high

2 kg


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FROM CARTOGAM TO NANOPIX…… A VALIDATED SYSTEM IN INDUSTRY AND HOMELAND SECURITY

Radiation Protection Applications Homeland Security Applications

Dismantling and DecomissionningPost accidental

remediation

ToreSupra (WEST)

diagnosis


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FROM CARTOGAM TO NANOPIX…… INTRODUCTION OF SPECTROMETRIC CAPABILITIES

Timepix and ToT Mode

Capability to discriminate sources by

energy in the same field of view

241Am (60 keV) 133Ba (81 keV) 137Cs (662 keV)

= + +

Hermine Lemaire – 2015 – Development of third generation gamma imager TPX & MPX3


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FROM CARTOGAM TO NANOPIX…… INDUSTRIAL TRANSFER TO IPIX PRODUCT

( )

New design (L×l×P = 8 cm×8 cm×15 cm)

Minimized and optimized shielding (2 kg)

Automatic masque/anti-masque procedure

Simplified connectors and bias (Power Over Ethernet)

Single software for acquisition and process

GAMPIXiPIX


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FROM CARTOGAM TO NANOPIX…… MINIATURIZE ALL TECHNOLOGICAL BLOCKS

Miniaturization of detector Miniaturization of other building blocks

Collimator

Visible Camera

15 cm

7 cm

120 g 48 g

6 cm 2 cm


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FROM CARTOGAM TO NANOPIX…… THE SMALLEST CODED APERTURE GAMMA CAMERA

8 cm x

5,1 cm x

4,3 cm

268 g!

NanoPixInnovation Award

World Nuclear Exhibition

Paris - 2018

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FROM CARTOGAM TO NANOPIX…… INTELLIGENCE CLOSE TO SENSOR

• Integration of on-board computing

capabilities for embedded

preprocessing

© P. STROPPA / CEA

• Advanced bias and communication

electronics (Power-over-Ethernet)

• Mini piezoelectric motor for remote

mask rotation


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Augmented-NANOPIX

INNOVATION CONCENTRATED IN A

COMPACT GAMMA IMAGER

100 x 70 x 54,5 MM3

450 G

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1

2

3

4

1 | Contamination on guide rail 2 | Localized contamination due to liquid effluent

3 | Hot spots in drums 4 | Contaminated filter [2 hot spots with ¼ activity ratio]

FROM CARTOGAM TO NANOPIX…… VALIDATED ON-SITE (@ ORANO LA HAGUE FUEL PROCESSING PLANT)


03CURRENT DEVELOPMENTS

COMPTON AND NEUTRON IMAGING

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CURRENT DEVELOPMENTS …… COMPTON IMAGING CAPABILITIES

Timepix3: Simultaneous ToT & ToA

Capability to carry out

Compton imaging

in a single detector

SourceM (Ei)

θ

A, Ed

B, Ea

Guillaume Amoyal – 2019 – Development of an hybrid gamma camera TPX3

Complete characterisation of Timepix3

and development of advanced algorithms


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CURRENT DEVELOPMENTS …… IMPLEMENTATION IN AN HYBRID IMAGER

Guillaume Amoyal – 2019 – Development of an hybrid gamma camera TPX3

Take advantages from Coded Aperture

AND Compton Imaging 241Am

137Cs


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CURRENT DEVELOPMENTS …… NEUTRON IMAGING CAPABILITIES

Clément Lynde – 2019 – Development of portable neutron camera TPX

Converted Timepix for

Neutron

+

Specific Coded Masks

+

Processing algorithmsFirst Prototype of Compact

Neutron Imager

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CURRENT DEVELOPMENTS …… ILLUSTRATION OF NEUTRON IMAGING FOR SHIELDED SOURCES

Clément Lynde – 2019 – Development of portable neutron camera TPX

Neutron

Gamma

No ShieldingPolyethylene

shielding

Lead

shielding


04FURTHER DEVELOPMENTS

ONE STEP TOWARD FUTURE APPLICATIONS

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Augmented-NANOPIX…… VALIDATED ON-SITE (@ ORANO LA HAGUE FUEL PROCESSING PLANT)

As part of a European Commission funded Research Program :

Embedment of NANOPIX miniaturized gamma camera

on robot (UGV) and drones (UAV) for area assessment


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Augmented-NANOPIX…… VALIDATED ON-SITE (@ ORANO LA HAGUE FUEL PROCESSING PLANT)

As part of a Euratom funded Research Program :

Improvement of NANOPIX miniaturized gamma camera

for nuclear waste management and characterization

Advanced processing

electronics

Advanced algorithms

for faster

reconstructionOptimized detection

substrateOptimized miniaturized

readout for Timepix3


Commissariat à l’énergie atomique et aux énergies alternatives

Institut List | CEA SACLAY NANO-INNOV | BAT. 861 – PC142

91191 Gif-sur-Yvette Cedex - FRANCE

www-list.cea.fr

Établissement public à caractère industriel et commercial | RCS Paris B 775 685 019

THANK YOU !!

And Happy Birthday Medipix!!

Contact:

Vincent SCHOEPFF

Email: [email protected]

Phone: +33.1.69.08.39.50

mailto:[email protected]

Commissariat à l’énergie atomique et aux énergies alternatives

Institut List | CEA SACLAY NANO-INNOV | BAT. 861 – PC142

91191 Gif-sur-Yvette Cedex - FRANCE

www-list.cea.fr

Établissement public à caractère industriel et commercial | RCS Paris B 775 685 019

THANK YOU !!

And Happy Birthday Medipix!!

Contact:

Vincent SCHOEPFF

Email: [email protected]

Phone: +33.1.69.08.39.50

mailto:[email protected]

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Field of View: 50°

Angular Resolution: 6°

Same technology as

GAMPIXSAME

PERFORMANCES

RN ActivitéSensitivity

@ 1 m

241Am 74 MBq < 1s

137Cs 33 MBq 60 s

60Co 4,6 MBq 1200 s

Dose rate range:

25 nGy.h-1 to > 30 Gy.h-1

Energy range:

8 keV to 1.5 MeVSpectroscopy capability: Yes

Dose Rate info possible: Yes

Augmented-NANOPIX…… CHARACTERIZED IN LABORATORY

Vincent SCHOEPFF | Ultra Compact, Remotely Controlled and Integrated Gamma Camera

Documents

GAMMA AND NEUTRON IMAGING€¦ · Improvement of NANOPIX miniaturized gamma camera for nuclear waste management and characterization Advanced processing electronics Advanced algorithms