期刊论文、会议论文

Pritchard, JL

英文

Journal of Instrumentation

1748-0221

2022

17

8

C08018

12th International Conference on Position Sensitive Detectors

SEP 12-17, 2021

Birmingham, ENGLAND

[Pritchard, J. L.;Velthuis, J. J.;Beck, L.;Li, Y.;De Sio, C.;Ballisat, L.;Duan, J.;Shi, Y.;Hugtenburg, R. P.] Univ Bristol, Sch Phys, Bristol BS8 1TL, Avon, England.^[Velthuis, J. J.;Hugtenburg, R. P.] Swansea Univ Med Sch, Dept Med Phys, Swansea SA2 8QA, W Glam, Wales.^[Velthuis, J. J.] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.^[Hugtenburg, R. P.] Swansea Bay Univ Hlth Board, Dept Med Phys & Clin Engn, Swansea SA2 8QA, W Glam, Wales.

TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND

IOP Publishing Ltd

10.1088/1748-0221/17/08/C08018

本校为其他机构

A multileaf collimator (MLC) is an integral component in modern radiotherapy machines as it dynamically shapes the photon field used for patient treatment. Currently, the MLC leaves which collimate the treatment field are mechanically calibrated to +/- 1mm every 3 months and during pre-treatment calibration are calibrated to the mechanically set leaf positions. Leaf drift can occur between calibration dates and hence exceed the +/- 1mm tolerance. Pre-treatment verification, increases LINAC usage time so is seldom performed for each individual patient treatment, but instead for an acceptable sa...