Design and production of Scintillation Detectors. SCIONIX general 2016

Сентябрь 14, 2022

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Design and production of Scintillation Detectors. SCIONIX general 2016

Содержание

2. Scintillation Detectors : Instruments using inorganic scintillation crystals or organic scintillators (plastics/ liquids) Radiation + Crystal
3. History of SCIONIX - Expertise of former HARSHAW personnel has been the basis of SCIONIX Holland
4. Scintillation crystal is important component * Inorganic synthetic crystal * Grown from solution or melt in
5. Product Range - Encapsulated scintillation crystals with optical windows - Scintillation detectors equiped with light readout
7. Some Milestones : 1995 250 kg NaI(Tl) detector system supplied to INFN FRASCATI 1996 SCIONIX become
8. KEY values - Flexibility - Expert Customer support - Solution provided - Dedicated applications - Business
9. Capabilities Manufacturing - Cutting and processing of various scintillation materials - Dry room area of assemblies
10. Quality control and testing - Characterization of scintillation materials - Advanced measurements on scintillators and light
11. Sales and marketing - SCIONIX products are often sold via a world-wide agent/distributor network. Some countries
12. Examples of Products in several Ranges Open window crystal assemblies NaI(Tl) C-Styles CsI(Tl) pixels Li(Eu) BaF2
13. Detectors with PMT Standard B-styles Largew OFHC NaI(Tl) Well detector Large Beta detector BGO Well det.
14. Detectors with advanced electronics Stabilised probes with HV and dedicated amplifiers Pen-type detector - Low power
15. Detectors with semiconductor readout Heavy ion detector and identification Challenges : Noise, compactness SiPm Readout
16. Security Applications : - “dirty bombs” - Special Nuclear materials (WGPu, HEU) → Neutron detection Challenges
17. Large inorganic scintillation detectors 2”x4”x16” NaI(Tl) detector Portal monitors Physics
18. Shipping Container Personal dosimeter Field use Other High resolution detectors for space
19. Medical Applications Safety in afterloading devices (high dose rates) Gamma camera crystals Bone densitometry Challenges :
20. Scrap Monitoring Sometimes metal scrap is contamined with Cs-137 or Co-60 from radio therapy devices Organic
21. Recent sensor developments to achieve our goals : Better crystals (more Light output, better proportionality) Better
22. Brighter scintillators Silicon Photomultipliers (SiPms) Arrays of self Quenched APDs in geiger mode. - Large gains
23. Organic scintillators (plastics / Liquids) SCIONIX partner with ELJEN technologies (USA) Neutron / gamma discrimination Large
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Слайд 2

Scintillation Detectors :
Instruments using inorganic scintillation crystals or
organic scintillators (plastics/

liquids)
Radiation + Crystal -> Light -> Electrical signal
SCIONIX : Designs and manufactures scintillation
detectors and - probes for application in
Medicine, Science, Security and Industry

Emphasis is on dedicated instruments, often custom made.

Слайд 3

History of SCIONIX
- Expertise of former HARSHAW personnel
has been

the basis of SCIONIX Holland
HARSHAW HOLLAND active in above field SINCE 1960's
- 1991 HARSHAW crystal products sold to Saint Gobain
- 1992 Holland plant closed
- 1993 SCIONIX Holland founded using experience
and know-how in manufacture of detectors in Holland.
Over the last 23 years the SCIONIX name has been established in the scintillation detection community.

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Scintillation crystal is important component
* Inorganic synthetic crystal
* Grown from solution

or melt in furnace
* diameters from 1 cm to 75 cm diameter
* (depending on material and application)
Examples of Materials used :
NaI(Tl), CsI(Tl), CsI(Na), CaF2(Eu), 6-LiI(Eu), BGO, CdWO4, CLYC, SrI2(Eu), YAP:Ce, PWO,
LaCl3, CeBr3, organic scintillators; each type different characteristics.
These materials in rough form (ingots, blocks) procured by SCIONIX from a large number of outside suppliers for cutting, polishing, encapsulation or further processing.

CdWO4

CsI(Tl)

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Product Range
- Encapsulated scintillation crystals with optical windows
- Scintillation detectors equiped with light

readout devices
(Photomultiplier Tube, photodiode, SiPm etc.)
- Scintillation probes with front-end electronics
- Detectors with HV supply and advanced hybrid electronics
(SCIIXON development)
SCIONIX DOES NOT supply :
- Complete (Health Physics) Instrumentation systems
- Monitors or digital processing electronics
65 % of products are manufactured for OEM customers

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Some Milestones :
1995 250 kg NaI(Tl) detector system supplied to INFN

FRASCATI
1996 SCIONIX become the main supplier to the IAEA Nuclear Safe guard inspectors
1997 Large ORNL Anti-Compton suppression Array delivered
1998 1200 CsI(Tl) elements (3 tons) to the CHIMERA experiment delivered ( > 3 tons)
2000 6000 scintillation element array for Integral (ESA) satellite supplied.
2001 Large BaF2 crystal ball ( 500 kg) at LANL supplied by SCIONIX

SCIONIX becomes contract partner for CMS project with CERN in cooperation with BTCP
SCIONIX key supplier for most important hand-held instrumentation companies
Developments in neutron detectors with 6-Li crystals leads to new generation of instruments for security applications (border control)
New generation of liquid scintillator cells for neutron / gamma detection
2010 Development of devices with advanced CeBr3 crystals
2012 300 kg BGO Project Astro-H delivered
High flash point liquids SrI2(Eu), CLYC
CeBr3 larger volume available;
Development of scintillation devices with Si PMT readout

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KEY values
- Flexibility - Expert Customer support - Solution provided - Dedicated applications - Business partnership

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Capabilities
Manufacturing
- Cutting and processing of various scintillation materials
- Dry room area of <

3 % RH for manufacturing of large
assemblies (gamma cameras)
- Encapsulation facilities for hygroscopic scintillation crystals
- Manufacturing facilities for metal housings and other hardware.

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Quality control and testing
- Characterization of scintillation materials
- Advanced measurements on scintillators and

light detection techniques
- Climate chamber for environmental tests and temperature cycling
- Vibration and shock equipment at external facility
- Computer controlled X-Y translation tables for homogeneity tests
of large area detectors.
- Full range of nuclear radiation detection instrumentation
- Low background chamber with HPGe detector for material
characterization.

Слайд 11

Sales and marketing
- SCIONIX products are often sold via a world-wide agent/distributor

network. Some countries are handled direct.
- Technical support is usually offered directly from the factory
Some products that contain SCIONIX scintillation detectors
- Hand held Nuclide Identification instruments
- Density measurement equipment on dredging ships
- Afterloading equipment for radiotherapy (brachytherapy)
- Regional perfusion equipment
- Intra-operative probes
- Bone densitometers
- Gamma cameras
- X-ray diffraction equipment

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Examples of Products in several Ranges
Open window crystal assemblies
NaI(Tl) C-Styles
CsI(Tl) pixels
Li(Eu)
BaF2
CeBr3

pixels

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Detectors with PMT
Standard B-styles
Largew OFHC NaI(Tl) Well detector
Large Beta detector
BGO Well

det.

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Detectors with advanced electronics
Stabilised probes with HV and dedicated amplifiers
Pen-type

detector

- Low power
- Rugged

Built-in hybrid amplifiers

Stabilized

Слайд 15

Detectors with semiconductor readout
Heavy ion detector and identification
Challenges : Noise, compactness
SiPm

Readout

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Security Applications :
- “dirty bombs”
- Special Nuclear materials (WGPu, HEU)
→

Neutron detection

Challenges :
- Better and faster indentification
- Neutron gamma discrimination
- Better energy resolution
- Compact, robust

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Large inorganic scintillation detectors
2”x4”x16” NaI(Tl) detector
Portal monitors
Physics

Слайд 18

Shipping Container
Personal dosimeter
Field use
Other
High resolution detectors for space

Слайд 19

Medical Applications
Safety in afterloading devices
(high dose rates)
Gamma camera crystals
Bone densitometry
Challenges :

- High rates
- Energy resolution

Слайд 20

Scrap Monitoring
Sometimes metal scrap is contamined with
Cs-137 or Co-60 from radio

therapy devices
Organic scintillators are often used but these
are not nuclide specific

Challenges : Energy resolution needed, cost

Слайд 21

Recent sensor developments to achieve
our goals :
Better crystals (more Light output,

better proportionality)
Better PMTs (higher QE better statistics)
Alternative readout methods (silicon PMTs)

Developments are going fast and it is mandatory to explore the opportunities these new materials and sensors offer.

Direct connection of detectors to USB

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Brighter scintillators
Silicon Photomultipliers (SiPms)
Arrays of self Quenched APDs in geiger

mode.
- Large gains
Higher QE than PMTs
- Small size

CeBr3
4 % @ 662 keV
Fast decay (20 ns)
Density 5.2 g / cc

Слайд 23

Organic scintillators (plastics / Liquids)
SCIONIX partner with ELJEN technologies (USA)
Neutron /

gamma discrimination

Large liquid scintillators

Machining of plastics

Design and production of Scintillation Detectors. SCIONIX general 2016

Содержание

Scintillation Detectors :Instruments using inorganic scintillation crystals or organic scintillators (plastics/

History of SCIONIX - Expertise of former HARSHAW personnel has been

Scintillation crystal is important component * Inorganic synthetic crystal * Grown from solution

Product Range- Encapsulated scintillation crystals with optical windows- Scintillation detectors equiped with light

Some Milestones : 1995 250 kg NaI(Tl) detector system supplied to INFN

KEY values- Flexibility - Expert Customer support - Solution provided - Dedicated applications - Business partnership

CapabilitiesManufacturing- Cutting and processing of various scintillation materials- Dry room area of <

Quality control and testing- Characterization of scintillation materials- Advanced measurements on scintillators and

Sales and marketing - SCIONIX products are often sold via a world-wide agent/distributor

Examples of Products in several RangesOpen window crystal assembliesNaI(Tl) C-StylesCsI(Tl) pixelsLi(Eu)BaF2CeBr3

Detectors with PMTStandard B-stylesLargew OFHC NaI(Tl) Well detectorLarge Beta detectorBGO Well

Detectors with advanced electronics Stabilised probes with HV and dedicated amplifiersPen-type

Detectors with semiconductor readoutHeavy ion detector and identificationChallenges : Noise, compactnessSiPm

Security Applications : - “dirty bombs” - Special Nuclear materials (WGPu, HEU) →

Large inorganic scintillation detectors2”x4”x16” NaI(Tl) detectorPortal monitorsPhysics

Shipping ContainerPersonal dosimeterField useOtherHigh resolution detectors for space

Medical ApplicationsSafety in afterloading devices(high dose rates)Gamma camera crystalsBone densitometryChallenges :

Scrap MonitoringSometimes metal scrap is contamined withCs-137 or Co-60 from radio

Recent sensor developments to achieveour goals :Better crystals (more Light output,

Brighter scintillatorsSilicon Photomultipliers (SiPms) Arrays of self Quenched APDs in geiger

Organic scintillators (plastics / Liquids)SCIONIX partner with ELJEN technologies (USA)Neutron /

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