Optimization of energy and directional response of a small 4π silicon dosemeter for quality control of CT/CBCT-units – A 3D CAD, Monte-Carlo, AM approach

Herrnsdorf, Lars; Andersson, Martin; Gunnarsson, Mikael; Mattsson, Sören

doi:10.1016/j.apradiso.2020.109050

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2021

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“…Recent published research papers demonstrate the use of Monte Carlo simulations to obtain X-ray spectra, to test radiation detectors or to perform dosimetry studies [4,5]; however, when a study aims to develop or characterize radiation detectors used in calibration laboratories, it is interesting to use simulated standard X-ray spectra, because the research involving these beams may improve the quality of the calibrations performed in laboratories [6].…”

Section: Introductionmentioning

confidence: 99%

Radiology and mammography standard X-ray spectra simulated with the Monte Carlo method

Filho¹,

Silveira²,

Caldas³

2021

Braz. J. Rad. Sci.

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Six standard beams described in the TRS-457 (IAEA): RQR 5, 8, M1, M2, M3, M4 were simulated using the EGSnrc Monte Carlo code. Each spectrum was created by an X-ray tube simulated in BEAMnrc, and attenuation curves were obtained using the application egs_kerma. The quality of each beam was evaluated by the 1st and 2nd half-value layers, the homogeneity coefficients and the mean energies. All beams presented quality parameters compatible with those described in TRS-457 (IAEA).

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Section: Introductionmentioning

confidence: 99%