Design and production of Scintillation Detectors. SCIONIX general 2016 презентация

application: * Medicine
* Industry
* Science
* Security

 

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.

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.

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)

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

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

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

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.

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

pixels

det.

detector

- Low power
- Rugged

Built-in hybrid amplifiers

Stabilized

Readout

Neutron detection

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

- High rates
- Energy resolution

therapy devices

Organic scintillators are often used but these
are not nuclide specific

Challenges : Energy resolution needed, cost

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

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

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

gamma discrimination

Large liquid scintillators

Machining of plastics

important for a successful project