NDLI: Hodoscope coincidence imaging for hadron therapy using a compton camera

Content Provider	IEEE Xplore Digital Library
Author	Gillam, J.E. Torres-Espallardo, I. Lacasta, C. Llosa, G. Barrio, J. Stankova, V. Solaz, C. Rafecas, M.
Copyright Year	2011
Description	Author affiliation: Instituto de Física Corpuscular (IFIC), Universitat de València / CSIC, Spain (Gillam, J.E.; Torres-Espallardo, I.; Lacasta, C.; Llosa, G.; Barrio, J.; Stankova, V.; Solaz, C.; Rafecas, M.)
Abstract	In hadron therapy particulate radiation is used to treat regions in close proximity to vital organs or tissue. Protons, or Carbon ions, provide enhanced treatment due to the characteristic Bragg peak structure of dose deposition, which constrains maximum dose deposition to a small volume of the patient. However, as there is no transmitted beam novel methods of beam monitoring must be developed to ensure accuracy in dose delivery. The particulate beam activates the target material giving rise to positrons, prompt gamma-rays and neutrons. While positron emission imaging is possible, Compton imaging has some distinct advantages in this role. The broad spectrum of prompt radiation means that incident photon energy is unknown. Unless incident photon energy can be determined, Compton imaging requires that either three or more interactions be measured or that the photon spectrum also be estimated during image reconstruction. However, the extension of the image space to include incident energy is inconvenient as the image space dimension is increased. Here pencil-beam therapy is considered, which allows the inclusion of beam information into the reconstruction algorithm. Coincident hodoscope information constrains the unknown spatial distribution of the emission field to a single dimension leaving one spatial and one spectral dimension. In this investigation hodoscope coincidence imaging using a Compton camera was explored using data simulated with GEANT4 and was shown to be a promising approach to the challenge of monitoring in hadron therapy.
Starting Page	3508
Ending Page	3513
File Size	1539859
Page Count	6
File Format	PDF
ISBN	9781467301183
ISSN	10823654
e-ISBN	9781467301206
DOI	10.1109/NSSMIC.2011.6152645
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-10-23
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Extraterrestrial measurements Imaging Computational modeling Monitoring Image reconstruction
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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