Dosimetric calibration of radiochromic film for laser-accelerated proton beams

Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/123288

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Campo DC	Valor	Lengua/Idioma
dc.contributor.author	Bellido Millán, Pablo Jesús	-
dc.contributor.author	García López, J.	-
dc.contributor.author	Jiménez-Ramos, M. C.	-
dc.contributor.author	Fernández-Martínez, Begoña	-
dc.date.accessioned	2015-10-13T11:01:38Z	-
dc.date.available	2015-10-13T11:01:38Z	-
dc.date.issued	2013	-
dc.identifier.citation	IEEE: NSS/MIC/RTSD (2013)	-
dc.identifier.uri	http://hdl.handle.net/10261/123288	-
dc.description	Resumen del trabajo presentado al IEEE Nuclear Science Symposium and Medical Imaging and Workshop on Room-Temeprature Semiconductor: "Beyond Imagination of Future Science" celebrado en Seoul (Korea) del 27 de octubre al 2 de noviembre de 2013.-- et al.	-
dc.description.abstract	When an ultra-intense and ultra-short laser pulse interacts with solid matter a fraction of the laser pulse can be converted into kinetic energy of a beam of charged particles. Radiochromic film (RCF), widely used as radiation detector in the field of conventional radiotherapy, can be used as detector for laser-accelerated protons. If used in stack configuration it is a useful and versatile tool to obtain 2D spatial distribution and energetic information of proton beams. In order to obtain dosimetric information from RCF it must be properly calibrated. Irradiating film pieces under well known conditions allows us to establish a relation between the optical density (OD) of the radiochromic film, which is measured through a flat bed scanner operating in transmission mode, and the deposited energy in the active layer. A calibration curve over a large dynamic range (3 orders of magnitude) has been obtained for few MeV protons. Our calibration process has been performed at the Spanish National Accelerator Center at Sevilla. We have irradiated several areas of a single RCF with a constant 50 pA beam current and fixed 4 MeV energy from a 3 MV tandem accelerator. We have calculated the deposited energy in the films under the same conditions. We demonstrate that this technique can be used to measure the spectrum and total energy of a laser-accelerated mixed-energy proton beam. This detector has been calibrated for a near future application at the Center of Pulsed, Ultra-short, Ultra-intense Lasers (CLPU) at Salamanca (Spain). We present the calibration procedure and results, the design optimization, and a comparison with similar experiments.	-
dc.rights	closedAccess	-
dc.title	Dosimetric calibration of radiochromic film for laser-accelerated proton beams	-
dc.type	comunicación de congreso	-
dc.date.updated	2015-10-13T11:01:39Z	-
dc.description.version	Peer Reviewed	-
dc.language.rfc3066	eng	-
dc.relation.csic	Sí	-
dc.type.coar	http://purl.org/coar/resource_type/c_5794	es_ES
item.cerifentitytype	Publications	-
item.openairecristype	http://purl.org/coar/resource_type/c_18cf	-
item.grantfulltext	none	-
item.openairetype	comunicación de congreso	-
item.fulltext	No Fulltext	-
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