Zobrazeno 1 - 10
of 88
pro vyhledávání: '"Paulo Crespo"'
Autor:
Firas Abouzahr, John Paul Cesar, Paulo Crespo, Michael Julius Gajda, Zongsheng Hu, Willie Kaye, Kyle Klein, Alex Kuo, Stanislaw Majewski, Osama R Mawlawi, Andrey Morozov, Aryan Ojha, Falk Poenisch, Jerimy C Polf, Marek Proga, Narayan Sahoo, Joao Seco, Takeshi Takaoka, Stefaan Tavernier, Uwe Titt, Xiaochun Wang, Xiaorong Ronald Zhu, Karol Lang
Publikováno v:
Physics in Medicine & Biology.
We demonstrate the first ever recorded PET imaging and dosimetry of a FLASH proton beam at the Proton Center of the MD~Anderson Cancer Center. Two scintillating LYSO crystal arrays, read out by silicon photomultipliers, were configured with a partial
Autor:
Paulo Fonte, Luís Lopes, Rui Alves, Nuno Carolino, Paulo Crespo, Miguel Couceiro, Orlando Cunha, Nuno Dias, Nuno C. Ferreira, Susete Fetal, Ana L. Lopes, Jan Michel, Jorge Moreira, Américo Pereira, João Saraiva, Carlos Silva, Magda Silva, Michael Traxler, Antero Abrunhosa, Alberto Blanco, Miguel Castelo-Branco, Mário Pimenta
We present first results from a Positron Emission Tomography (PET) scanner demonstrator based on Resistive Plate Chambers and specialized for brain imaging. The device features a 30 cm wide cubic field-of-view and each detector comprises 40 gas gaps
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::19d60688664e0fa695f890bdfa0b971e
http://arxiv.org/abs/2211.05860
http://arxiv.org/abs/2211.05860
Publikováno v:
2021 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC).
Publikováno v:
Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB). 84
Multi-slat prompt-gamma camera is a promising tool for range monitoring during proton therapy. We report the results of a comprehensive simulation study analyzing the precision which is possible to reach with this camera in determination of the posit
Publikováno v:
IEEE Transactions on Radiation and Plasma Medical Sciences. 2:510-519
Much attention is currently being paid to imaging prompt gamma (PG) rays for in vivo proton range monitoring in proton therapy. PG imaging using a collimator is affected by neutron-related background. We study the effectiveness of background reductio
Autor:
J.A.M. Santos, Mariana Alves Barros, Ana Luisa Lopes, Paulo Crespo, Carolina Travassos, P.J.B.M. Rachinhas, Hugo Simoes, Joana Lencart
Publikováno v:
IEEE Transactions on Radiation and Plasma Medical Sciences. 1:452-459
We analyze by simulation a fully-3-D, low-dose imaging system aiming at assisting external-beam radiotherapy, either for on-board patient imaging, or for real-time radiotherapy monitoring. The system consists in detecting megavoltage patient-scattere
Autor:
Natalia Auricchio, J.M. Maia, R. M. Curado da Silva, M. Moita, S.J.C. do Carmo, M. P. Pascoa, Paulo Crespo, Francisco Alves, Ezio Caroli
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Agência para a Sociedade do Conhecimento (UMIC)-FCT-Sociedade da Informação
instacron:RCAAP
Agência para a Sociedade do Conhecimento (UMIC)-FCT-Sociedade da Informação
instacron:RCAAP
This article reports the proton radiation sensitivity of two 1.0-mm-thick EURORAD ohmic CdTe detectors, irradiated with a low energy proton beam generated in a positron emission tomography (PET) cyclotron facility. The CdTe crystals were exposed to a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff637ee706c05fcb913b828c65a36efc
https://hdl.handle.net/10400.26/34007
https://hdl.handle.net/10400.26/34007
Autor:
Ana Rita Silva, Daniela Lopes Oliveira, Ana Barradas, Pedro Fevereiro, Olívia Campos Costa, Ana Sofia Duque, João Paulo Crespo
Publikováno v:
Plant Cell, Tissue and Organ Culture (PCTOC). 125:177-181
There is an ever-increasing demand for high quality forage legumes, essential to feed livestock. Micropropagation may be useful to preserve elite allelic compositions in allogamous and auto-incompatible forage legume species, as is the case of Trifol
Autor:
R.F. Marques, Dennis R. Schaart, Patricia Cambraia Lopes, Hugo Simoes, Katia Parodi, Paulo Crespo
Publikováno v:
Physica Medica: an international journal devoted to the applications of physics to medicine and biology, 54
Prompt-gamma (PG) imaging has the potential for monitoring proton therapy in real time. Different approaches are investigated. We focus on developing multi-slat collimators to image PG quanta, aiming at optimizing collimator performance to detect dev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ac84b90b3b7e994a7f0a2b34e995af51
http://resolver.tudelft.nl/uuid:50b235cc-e7b6-4bc4-b6c6-3307229f736b
http://resolver.tudelft.nl/uuid:50b235cc-e7b6-4bc4-b6c6-3307229f736b
Autor:
Paulo Crespo, Natalia Auricchio, R. M. Curado da Silva, Sharif Ghithan, M. Moita, Francisco Alves, S.J.C. do Carmo, Nuno Simões, J.M. Maia, Ezio Caroli
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Agência para a Sociedade do Conhecimento (UMIC)-FCT-Sociedade da Informação
instacron:RCAAP
Agência para a Sociedade do Conhecimento (UMIC)-FCT-Sociedade da Informação
instacron:RCAAP
Future high-energy space telescope missions require further analysis of orbital environment induced activation and radiation damage on main instruments. A scientific satellite is exposed to the charged particles harsh environment, mainly geomagnetica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a20be31860d0035c6a46589fc1df6fe