18 февраля 2020  |  
1:24 PM  September 9, 2019

TSU radiophysicists create electromicroscopes ultra-precise detectors

© РИА Томск. Павел СтефанскийTSU radiophysicists create electromicroscopes ultra-precise detectors

TOMSK, Sep 9 – RIA Tomsk. Scientists of Tomsk State University (TSU) are working on optimizing sensors based on gallium arsenide, compensated by chromium, to register high-energy electrons; improved sensors can be used in transmission electron microscopes, the press service of the university said on Monday.

It is noted that the project on sensor optimization is carried out by specialists of the research and development center "Advanced Technologies in Microelectronics". The study of TSU radiophysicists is supported by the D.I. Mendeleev Fund Program of TSU.

"TSU radiophysicists create sensors based on chromium-compensated gallium arsenide (HR-GaAs:Cr) to detect high-energy electrons. These are electrons with energies from several thousand to several million electron volts, they are emitted during the radioactive decay of atomic nuclei. Sometimes these electrons are called beta particles or beta rays", – is said in the message.

It is added that on the basis of these sensors by December 2019 scientists will develop detectors for research and measuring equipment, in particular modern transmission electron microscopes for the study of biological tissues and cells.

© предоставлено пресс-службой Томского госуниверситета

"Improved sensors can be used in transmission electron microscopes. They find their application in medicine and in the study of various biological objects, such as tissues and cells", – the employee of the research and development center Leia Shaimerdenova is quoted in the message.

It is planned that studies of the radiation resistance of optimized sensors will be carried out at the Joint Institute for Nuclear Research in Dubna. It is also reported that currently TSU gallium arsenide sensors are used in the world's leading research centers DESY, ESRF, PSI, RAL, JINP and in the project to create the prototype of the world's first Compton X-ray microscope in Germany.

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