Abstract: A position detector arranged to be mounted at a radiation detector of a radiotherapy treatment apparatus, which includes a gantry rotatable about a gantry rotation axis, and a collimator rotatable about a collimator rotation axis. The radiation detector is mounted at the collimator. The position detector comprises: —an accelerometer device, which is arranged to detect at least gravitational acceleration in at least one dimension; —a gyro device arranged to detect at least angular velocity in at least one dimension; wherein the accelerometer device and the gyro device in common are arranged to be operative in three dimensions, and —a controller connected with the accelerometer and the gyro; wherein the controller is arranged to receive first input data from the accelerometer device and second input data from the gyro device, and to determine at least a collimator angle and a gantry angle by means of the first and second input data.
Abstract: The present invention generally relates to a radiation sensor for use particularly in, but by no means exclusively, in measuring radiation dose in photon or electron fields such as for radiation medicine, including radiotherapy and radiation based diagnosis. According to the present invention, there is provided a semiconductor radiation detector comprising a radiation sensitive detector element arranged such that it forms a continuous radiation sensitive portion having surfaces oriented in at least two non-parallel directions.
Type:
Grant
Filed:
May 20, 2011
Date of Patent:
October 3, 2017
Assignee:
SCANDIDOS AB
Inventors:
Görgen Nilsson, Stephane Junique, Wlodek Kaplan, Peter Norlin
Abstract: The present invention generally relates to a radiation sensor for use particularly in, but by no means exclusively, in measuring radiation dose in photon or electron fields such as for radiation medicine, including radiotherapy and radiation based diagnosis. According to the present invention, there is provided a semiconductor radiation detector comprising a radiation sensitive detector element arranged such that it forms a continuous radiation sensitive portion having surfaces oriented in at least two non-parallel directions.
Type:
Application
Filed:
May 20, 2011
Publication date:
April 3, 2014
Applicant:
SCANDIDOS AB
Inventors:
Görgen Nilsson, Stephane Junique, Wlodek Kaplan, Peter Norlin