Synchrotron experiment will help to improve gallium arsenide sensors

2019-10-29

Radiophysicist Anastasia Lozinskaya has conducted an experiment on the Diamond Light Source synchrotron in the Rutherford Appleton Laboratory (RAL) in the UK. She irradiated a sensor based on gallium arsenide compensated by chromium (HR GaAs: Cr), created at TSU with a beam of synchrotron radiation. The data obtained will help to improve the quality of the sensors and make the final picture more uniform.

- Recently some defects were detected in the structure of gallium arsenide, which we compensate for chromium. These defects lead to a change in the counting speed of the sensors, and as a result, the picture becomes heterogeneous, that is, small “spots” are visible with more or less charge collected, - said Anastasia Lozinskaya, junior scientific researcher at the center for research and development Advanced Technologies in Microelectronics. - In early 2019, we applied to Diamond Light Source for an experiment to improve the quality of our sensors.

Read more: http://en.tsu.ru/news/synchrotron-experiment-will-help-to-improve-gallium-arsenide-sensors-/