Responses of Fuji Imaging Plates (IPs) to proton have been measured in the range 1-200 MeV. Mono-energetic protons were produced with the 15 MV ALTO-Tandem accelerator of the Institute of Nuclear Physics (Orsay, France) and, at higher energies, with the 200-MeV isochronous cyclotron of the Institut Curie-Centre de Protonthérapie d'Orsay (Orsay, France). The experimental setups are described and the measured photo-stimulated luminescence responses for MS, SR, and TR IPs are presented and compared to existing data. For the interpretation of the results, a sensitivity model based on the Monte Carlo GEANT4 code has been developed. It enables the calculation of the response functions in a large energy range, from 0.1 to 200 MeV. Finally, we show that our model reproduces accurately the response of more complex detectors, i.e., stack of high-Z filters and IPs, which could be of great interest for diagnostics of Petawatt laser accelerated particles.
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http://dx.doi.org/10.1063/1.5009472 | DOI Listing |
Cancers (Basel)
November 2024
Radiotherapy and Radiation Dosimetry, National Physical Laboratory, Teddington TW11 0LW, UK.
Appl Radiat Isot
November 2024
Nuclear Physics Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India.
The cumulative yield of the fission products within the mass range of 83-117 and 123-153 have been measured in the 6.61and 10.92 MeV quasi-mono-energetic neutron-induced fission of U by using an off-line γ-ray spectrometric technique.
View Article and Find Full Text PDFInt J Radiat Oncol Biol Phys
November 2024
Department of Nuclear Medicine and Medical Physics, Karolinska University Hospital, Stockholm, Sweden; Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden.
Purpose: To test a first-generation clinical photon-counting computed tomography (PCCT) scanner's capabilities to characterize materials in an anthropomorphic head phantom for radiation therapy purposes.
Methods And Materials: A CIRS 731-HN head-and-neck phantom (CIRS/SunNuclear) was scanned on a NAEOTOM Alpha PCCT and a SOMATOM Definition AS+ with single-energy and dual-energy CT techniques (SECT and DECT, respectively), both scanners manufactured by Siemens (Siemens Healthineers). A method was developed to derive relative electron density (RED) and effective atomic number (EAN) from linear attenuation coefficients (LACs) of virtual mono-energetic images and applied for the PCCT and DECT data.
Life Sci Space Res (Amst)
November 2024
Leidos, Inc., Houston, TX 77058, USA.
The HIMAC (Heavy Ion Medical Accelerator in Chiba) was originally designed principally for carbon ion therapy, but heavy ion research projects in medicine, physics, chemistry and biology have been conducted under a collaborative research framework since 1994. One major application is space radiation research. The radiation in space of greatest interest for human space exploration consists of energetic protons and heavy ions which can affect the health of space crew and lead to the failure of electronic devices.
View Article and Find Full Text PDFRev Sci Instrum
September 2024
Plasma Science and Fusion Center, MIT. Cambridge, Massachusetts 02139, USA.
Image plates (IPs) are a quickly recoverable and reusable radiation detector often used to measure proton and x-ray fluence in laser-driven experiments. Recently, IPs have been used in a proton radiography detector stack on the OMEGA laser, a diagnostic historically implemented with CR-39, or radiochromic film. The IPs used in this and other diagnostics detect charged particles, neutrons, and x-rays indiscriminately.
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