A New Technology for Fast Two-Dimensional Detection of Proton Therapy Beams
Joint Authors
Shukla, Gaurav
Dolney, Derek
Maughan, Richard
Hollebeek, Robert
Newcomer, Mitch
Mayers, Godwin
Delgado, Brian
Source
Physics Research International
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-12-30
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
The Micromesh Gaseous Structure, or Micromegas, is a technology developed for high count-rate applications in high-energy physics experiments.
Tests using a Micromegas chamber and specially designed amplifiers and readout electronics adapted to the requirements of the proton therapy environment and providing both excellent time and high spatial resolution are presented here.
The device was irradiated at the Roberts Proton Therapy Center at the University of Pennsylvania.
The system was operated with ionization gains between 10 and 200 and in low and intermediate dose-rate beams, and the digitized signal is found to be reproducible to 0.8%.
Spatial resolution is determined to be 1.1 mm (1σ) with a 1 ms time resolution.
We resolve the range modulator wheel rotational frequency and the thicknesses of its segments and show that this information can be quickly measured owing to the high time resolution of the system.
Systems of this type will be extremely useful in future treatment methods involving beams that change rapidly in time and spatial position.
The Micromegas design resolves the high dose rate within a proton Bragg peak, and measurements agree with Geant4 simulations to within 5%.
American Psychological Association (APA)
Hollebeek, Robert& Newcomer, Mitch& Mayers, Godwin& Delgado, Brian& Shukla, Gaurav& Maughan, Richard…[et al.]. 2012. A New Technology for Fast Two-Dimensional Detection of Proton Therapy Beams. Physics Research International،Vol. 2012, no. 2012, pp.1-11.
https://search.emarefa.net/detail/BIM-492739
Modern Language Association (MLA)
Hollebeek, Robert…[et al.]. A New Technology for Fast Two-Dimensional Detection of Proton Therapy Beams. Physics Research International No. 2012 (2012), pp.1-11.
https://search.emarefa.net/detail/BIM-492739
American Medical Association (AMA)
Hollebeek, Robert& Newcomer, Mitch& Mayers, Godwin& Delgado, Brian& Shukla, Gaurav& Maughan, Richard…[et al.]. A New Technology for Fast Two-Dimensional Detection of Proton Therapy Beams. Physics Research International. 2012. Vol. 2012, no. 2012, pp.1-11.
https://search.emarefa.net/detail/BIM-492739
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-492739