IEAP - Institute of Experimental and Applied Physics CTU - Czech Technical University in Prague
Česky English
IEAP - Institute of Experimental and Applied Physics CTU - Czech Technical University in Prague
CTU - Czech Technical University in Prague
Publication  > Articles in Impacted Journals  > 'Pattern recognition of tracks induced by individual quanta of ionizing radiation in Medipix2 silicon detector'
Pattern recognition of tracks induced by individual quanta of ionizing radiation in Medipix2 silicon detector

Author

Year
2008

Scientific journal
Nucl. Instr. and Meth. A, Volume: 591, Issue:1, Pages: 287-290, doi: 10.1016/j.nima.2008.03.074

Web


Abstract
Medipix2 is a semiconductor pixel detector (256x256 square pixels, 55x55 m2 each) which can count individual quanta of radiation. The detector will respond differently for different types of radiation. If the acquisition time is short enough with respect to radiation intensity one can see characteristic tracks of individual quanta in image taken (e.g. curved lines for electrons, round shaped clusters for alpha particles, heavy ions and slow neutrons, cone shapes for fast neutrons, simple dots for low energy X-rays etc.). For effective visualization of neutrons, the device has to be equipped by corresponding neutron converter, which converts neutrons to heavy charged particles. By analyzing these patterns, in this so called “tracking mode” of operation, it is possible to distinguish individual tracks and classify them into predefined categories. For each “cluster” detected the features, (such as parameters describing the shape and energy deposition estimation), can be extracted and used to distinguish radiation type. The energy deposited can be estimated by using calibration measurements with different types of radiation and variation of the discrimination threshold.

Cite article as:
Z. Vykydal, "Pattern recognition of tracks induced by individual quanta of ionizing radiation in Medipix2 silicon detector", Nucl. Instr. and Meth. A, Volume: 591, Issue:1, Pages: 287-290, doi: 10.1016/j.nima.2008.03.074 (2008)

Search
10th Anniversary of IEAP