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Molding Technique for Scintillators


Development of the Injection Molding Technique for Scintillation Tiles Production.

Tech Area / Field

  • FIR-INS/Nuclear Instrumentation/Fission Reactors

8 Project completed

Registration date

Completion date

Senior Project Manager
Weaver L M

Leading Institute
Institute for High Energy Physics (IHEP), Russia, Moscow reg., Protvino

Supporting institutes

  • Klimovsk Machine Building Plant, Ltd, Russia, Moscow reg., Klimovsk\nNPO Lutch, Russia, Moscow reg., Podolsk\nStupino Titanium Company, Ltd, Russia, Moscow reg., Stupino\nVNIIKhT (Chemical Technology), Russia, Moscow


  • CERN, Switzerland, Geneva

Project summary

Organic scintillators based on polystyrene are widely used in construction of new generation of calorimeters for High Energy Physics.

The most promising technique capable to provide mass production of scintillator for huge detectors is injection molding from granulated polystyrene. This technology was elaborated in the Institute for High Energy Physics (Protvino) and was successfully used during a number of years for manufacturing of small-size scintillators.

The new generation of the detectors need scintillation tiles of a bigger dimensions with a higher demands for transparency, which require further development of the production technology. From the experience of scintillator production for calorimeter prototypes the improvement of the technology will be possible only in a result of intensive experimental work on the molds design and technology investigations.

The research includes molds construction design and their tests using up-to-date injection molding machines allowing to distinguish the influence of different steps of technological process on the quality of the final product. The collected information and recommendation will be important for the distribution of the orders for mass scintillator production, in particular for the ATLAS hadron calorimeter being constructed at CERN by international team of physicists. About 500,000 scintillator tiles of 11 sizes, with good light yield uniformity and transparency have to be produced for this device.

As long as the injection molding technique already exists and there is some conception of ways it may be improved, the authors of project are sure that the aims of project may be achieved. The improved technology will allow to produce all the number of scintillating tiles for ATLAS detector by means of injection molding.

Foreign collaborators will take part in the technology development, molds design, construction of the input control equipment for the materials used, the scintillator properties studies and in beam tests of calorimeter prototypes using tentative issues of scintillator.


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