Technical Note: Characterization of the new microSilicon diode detector.

ABSTRACT:

Purpose

Dosimetric properties of the new microSilicon diode detector (60023) have been studied with focus on application in small-field dosimetry. The influences of the dimensions of the sensitive volume and the density of the epoxy layer surrounding the silicon chip of microSilicon have been quantified and compared to its predecessor (Diode E 60017) and the microDiamond (60019, all PTW-Freiburg, Germany).

Methods

Dose linearity has been studied in the range from 0.01 to 8.55 Gy and dose-per-pulse dependence from 0.13 to 0.86 mGy/pulse. The effective point of measurement (EPOM) was determined by comparing measured percentage depth dose curves with a reference curve (Roos chamber). Output ratios were measured for nominal field sizes from 0.5 × 0.5  cm² to 4 × 4 cm<

SUBMITTER: Schonfeld AB 

PROVIDER: S-EPMC6852691 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature