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Spanish researchers developed a monolithic scintillator for detecting radiation and biomedical diagnostic devices

Country of origin:
Country: 
SPAIN
Opportunity:
External Id: 
TOES20200316002
Published
18/03/2020
Last update
16/04/2020
Expiration date
17/04/2021

Keywords

Partner keyword: 
Electrical Engineering/ Electrical Equipment
Optics
Medical Technology / Biomedical Engineering
Laser Related
Nuclear imaging
Medical instruments
Other research and experimental development on natural sciences and engineering
Other professional, scientific and technical activities n.e.c.
Tertiary education
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Summary

Summary: 
A Spanish university presents a scintillator built by means of a monolithic crystal engraved with a flexible and intelligent below-the-surface laser technique. The technology presents unique and precise Lambertian-type diffuse reflection features that can be applied in general radiation detectors and in biomedical diagnostic devices. Looking for licensing, manufacture and technical cooperation agreements.

Description

Description: 

A Spanish research group from a public university has developed an accuracy method for creating high-energy radiation scintillators from monolithic inorganic crystals. New Lambertian-type diffuse reflection features can be achieved using an intelligent laser technique that introduces a degree of randomization in the translucent walls of each cell of the inorganic crystal.
Nowadays, scintillation crystals configured as scintillation cells are used in different fields of science and technology. In any of these applications, scintillation cells are used to convert high-energy gamma ray or X ray photons into low-energy photons that can be easily measured by a photodetector. Among the applications of inorganic scintillation materials stands out in the field of the positron emission tomography (PET).
A specially designed configuration is used to build the developed scintillator. A laser beam applied on a monolithic scintillation crystal is used, engraving a design or diffuse microscopic array of points distributed with a certain degree of randomization, according to the optic properties to be obtained. A translucent wall with uniform features at the macroscopic level is thereby formed.
The developed method includes techniques for evaluating efficiency as an optic reflector of the pixels defined by those surfaces, and offers new design opportunities that were inconceivable up until now in the current state of the art.
Another aspect of the engraving lies in the improvements to the reflective walls with several layers of engraved regions. By controlling the distance between two adjacent regions in the order of a few tenths of a micrometre, the thickness and opacity of the created light guide surface can be controlled, allowing the optic features of the final pixeling to be easily handled.
All of these new features lead to a more precise, rapid, reliable and inexpensive manufacturing process of high-energy radiation scintillators from monolithic inorganic crystals.
Researchers are seeking for manufacturers of radiation detectors in general or of biomedical diagnostic devices (PET) or medical imaging devices, for licencing and/or manufacture agreement. Technical agreement is also requested with partners that work on detection of high-energy radiation and Biomedical diagnosis by means of detecting radiation.

Advantages & innovations

Cooperation plus value: 
Innovative aspects: - Monolithic scintillation crystal engraved by means of below-the-surface laser techniques. - Flexible and intelligent method for creating patterns. - Engraving process with a degree of randomization. - Lambertian diffuse reflection. Advantages: - Crystal scintillator in a single monolithic crystal. - Much more precise, rapid, reliable and inexpensive manufacturing process. - Better detection features due to diffuse reflection. - Engraves any pattern of interest

Stage of development

Cooperation stage dev stage: 
Available for demonstration

Partner sought

Cooperation area: 
Manufacturers of radiation detectors in general or of biomedical diagnostic devices (PET) or medical imaging devices for manufacture and/or license agreement. Technical agreement is also requested with partners that work on detection of high-energy radiation and Biomedical diagnosis by means of detecting radiation.

Type and size

Cooperation task: 
University

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Example of a monolithic scintillator with hexagonal cells