DocumentCode
2553794
Title
Towards using a Monolithic Active Pixel Sensor for in-vivo beam monitoring of Intensity Modulated Radiotherapy
Author
Page, Ryan F. ; Abbott, Natalie L. ; Davies, John ; Dyke, Emma L. ; Randles, Heather J. ; Velthuis, J.J. ; Fletcher, Sam ; Gregory, Shaun D. ; Hall, C. ; John, Anne-Marie ; Lawrence, H. ; Stevens, Paul H. ; Hugtenburg, Richard P. ; Tunbridge, Victoria
Author_Institution
H.H. Wills Phys. Lab., Univ. of Bristol, Bristol, UK
fYear
2012
fDate
Oct. 27 2012-Nov. 3 2012
Firstpage
2200
Lastpage
2204
Abstract
To enable in-vivo monitoring of Intensity Modulated Radiotherapy (IMRT) with minimal attenuation of the treatment field, an upstream camera system based on a Monolithic Active Pixel Sensor (MAPS) has been developed. This system has been used to precisely reconstruct the position of the Multileaf Collimators (MLC) that are used to shape the treatment field. The results show the position of a MLC is known with a precision of 6 μm with 10 seconds worth of data and 52 ± 4 μm for a single frame.
Keywords
radiation therapy; semiconductor counters; Multileaf Collimators; in-vivo beam monitoring; intensity modulated radiotherapy; monolithic active pixel sensor; treatment field minimal attenuation; upstream camera system;
fLanguage
English
Publisher
ieee
Conference_Titel
Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2012 IEEE
Conference_Location
Anaheim, CA
ISSN
1082-3654
Print_ISBN
978-1-4673-2028-3
Type
conf
DOI
10.1109/NSSMIC.2012.6551501
Filename
6551501
Link To Document