Results 41 to 50 of about 16,734 (227)

Design and Optimisation of a Three Layers Thermal Neutron, Fast Neutron and Gamma-Ray Imaging System [PDF]

open access: yesEPJ Web of Conferences, 2020
The design and configuration of a multi-layered imaging system with the ability to detect thermal neutrons, fast neutrons and gamma rays has been developed and its efficacy demonstrated.
Al Hamrashdi H., Monk S. D., Cheneler D.
doaj   +1 more source

Cálculo de Coeficientes de Fluência de Nêutrons para Equivalente de Dose Individual Utilizando o Geant4

open access: yesBrazilian Journal of Radiation Sciences, 2015
Fluence to dose equivalent conversion coefficients provide the basis for the calculation of area and personal monitors.  Recently, the ICRP has started a revision of these coefficients, including new Monte Carlo codes for benchmarking.
Rosane Moreira Ribeiro   +5 more
doaj   +1 more source

Geant4 Modeling of Cellular Dosimetry of 188Re: Comparison between Geant4 Predicted Surviving Fraction and Experimentally Surviving Fraction Determined by MTT Assay [PDF]

open access: yesJournal of Biomedical Physics and Engineering, 2021
Background: The importance of cellular dosimetry in both diagnostic and radiation therapy is becoming increasingly recognized. Objective: This study aims to compare surviving fractions, which were predicted using Geant4 and contained three types of ...
Sara Mohammadi   +2 more
doaj   +1 more source

Improvement of Geant4 Neutron-HP package: From methodology to evaluated nuclear data library [PDF]

open access: yesNuclear Instruments and Methods in Physics Research Section A : Accelerators, Spectrometers, Detectors and Associated Equipment, 2021
An accurate description of interactions between thermal neutrons (below 4 eV) and materials is key to simulate the transport of neutrons in a wide range of applications such as criticality-safety, reactor physics, compact accelerator-driven neutron ...
L. Thulliez, C. Jouanne, Eric Dumonteil
semanticscholar   +1 more source

Contribution of 4~400 MeV protons galactic cosmic rays to annihilation radiation in orbital gamma spectrum near lunar space

open access: yesHe jishu, 2023
BackgroundThe annihilation radiation exhibits conspicuous features in the low-energy segment of the orbital gamma spectrum, which contains a substantial amount of geological information about the lunar surface.
ZHAO Jiankun   +6 more
doaj   +1 more source

In-beam tests of a PET demonstrator (LAPD) for hadrontherapy beam ballistic control: data comparison to Geant4 Monte-Carlo predictions [PDF]

open access: yesEPJ Web of Conferences, 2020
This paper describes a small prototype of an in beam PET like detector, named ”Large Acceptance Pixelized Detector” (LAPD), developed to test technical concepts for the ion range control in the context of cancer treatments using proton or ion beams.
Binet Sébastien   +8 more
doaj   +1 more source

Geant4: A game changer in high energy physics and related applicative fields [PDF]

open access: yesFuture generations computer systems
Geant4 is an object-oriented toolkit for the simulation of the passage of particles through matter. Its development was initially motivated by the requirements of physics experiments at high energy hadron colliders under construction in the last decade ...
T. Basaglia   +6 more
semanticscholar   +1 more source

Measuring fluorescence photon counts of cosmic ray muons in scintillation fibers

open access: yesHe jishu, 2023
BackgroundIn the realm of cosmological ray studies employing plastic scintillation fibers, it is essential to conduct quantitative analyses of the photon number from the fiber's output pulse for the successful design of readout electronics.PurposeGiven ...
WANG Qiqi   +4 more
doaj   +1 more source

Geant4 Atomic Relaxation

open access: yesIEEE Transactions on Nuclear Science, 2005
The Low Energy Electromagnetic package of the Geant4 toolkit incorporates a component for the simulation of atomic relaxation of elements with atomic number between 6 and 100. This process is triggered by the creation of a vacancy in the atomic shell occupancy as a result of an incident particle interaction with an atom of the target material.
A. Mantero   +5 more
openaire   +3 more sources

An iterating method to investigate the geometry of range modulation wheel in passive proton therapy [PDF]

open access: yesمجله علوم و فنون هسته‌ای, 2020
In the treatment of the  tumors using proton therapy, the synchrotron emits a monoenergetic beam that transports most of its energy in a special position after entering the target. There are two approaches to invading the entire tumor tissue.
Z. Tabatabaeian, M. Sadeghi
doaj   +1 more source

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