Dosimeter und Verfahren zum Ermitteln einer Energiedosis eines gepulsten Strahlungsfeldes

摘要

#CMT# #/CMT# The dosimeter (10) has an evaluation unit (20) determining time interval of a radiation field (26) and detecting measuring points of voltage corresponding to the electrical charge relative to the time interval of constant times so that two rough measured values are received per time interval. A line (18) e.g. coaxial cable, is made of carbon fibers or plastic fibers and transfers the electrical charge. A measured variable related to an absorbed dose stored in a sensor volume of a sensor (14) i.e. semiconductor sensor, in a dosimeter probe (12) is determined from the two rough measured values. #CMT# : #/CMT# An independent claim is also included for a method for determining an absorbed dose of a pulsed radiation field. #CMT#USE : #/CMT# Dosimeter for use in medical radiotherapy (claimed) of patient, to determine an absorbed dose of a radiation field. #CMT#ADVANTAGE : #/CMT# The measured variable related to the absorbed dose stored in the sensor volume of the sensor in the dosimeter probe is determined from the two rough measured values, so that the absorbed dose rate can be determined with high accuracy and high speed. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic view of a dosimeter probe. 10 : Dosimeter 12 : Dosimeter probe 14 : Sensor 18 : Line 20 : Evaluation unit 26 : Radiation field.