© РИА Томск. Павел Стефанский
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.
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
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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.
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.