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Mostrando ítems 11-20 de 88
Artículo
Performance of the reconstruction algorithms of the FIRST experiment pixel sensors vertex detector
(Elsevier, 2014)
Hadrontherapy treatments use charged particles (e.g. protons and carbon ions) to treat tumors. During a therapeutic treatment with carbon ions, the beam undergoes nuclear fragmentation processes giving rise to significant ...
Artículo
Output factor determination for dose measurements in axial and perpendicular planes using a silicon strip detector
(American Physical Society, 2012-04-23)
In this work we present the output factor measurements of a clinical linear accelerator using a silicon strip detector coupled to a new system for complex radiation therapy treatment verification. The objective of these ...
Artículo
Simultaneous measurement of neutron-induced capture and fission reactions at CERN
(Springer Verlag, 2012)
The measurement of the capture cross-section of fissile elements, of utmost importance for the design of innovative nuclear reactors and the management of nuclear waste, faces particular difficulties related to the γ-ray ...
Ponencia
GEANT4 application for the simulation of the head of a siemens primus linac
(AIP Publishing, 2010)
The Monte Carlo simulation of the head of a Siemens Primus Linac used at Virgen Macarena Hospital (Sevilla, Spain) has been performed using the code GEANT4 [1-2], version 9.2. In this work, the main features of the application ...
Artículo
GEANT4 simulation of the neutron background of the C6D6 set-up for capture studies at n_TOF
(Elsevier, 2014)
The neutron sensitivity of the C6D6 detector setup used at n-TOF facility for capture measurements has been studied by means of detailed GEANT4 simulations. A realistic software replica of the entire n-TOF experimental ...
Ponencia
Novel dual single sided silicon strip detector chip for radiotherapy verification
(Scuola Internazionale Superiore di Studi Avanzati (S I S S A), 2013)
A novel dual single sided silicon strip detector (SSSSD) chip was designed to meet clinical requirements in radiotherapy verification. An available design from Micron Semiconductor Ltd. (BB7, 500 µ m thick) was the base of ...
Artículo
The nucleosynthesis of heavy elements in stars: the key isotope 25Mg
(EDP Sciences, 2014)
We have measured the radiative neutron-capture cross section and the total neutron-induced cross section of one of the most important isotopes for the s process, the 25Mg. The measurements have been carried out at the ...
Artículo
7Be(n, p) 7Li Reaction and the Cosmological Lithium Problem: Measurement of the Cross Section in a Wide Energy Range at n_TOF at CERN
(APS Physics, 2018-07-24)
We report on the measurement of the 7Be(n,p)7Li cross section from thermal to approximately 325 keV neutron energy, performed in the high-flux experimental area (EAR2) of the n_TOF facility at CERN. This reaction plays a ...
Artículo
7Be(n,α) and 7Be(n,p) cross-section measurement for the cosmological lithium problem at the n-TOF facility at CERN
(EDP Sciences, 2017)
The Cosmological Lithium Problem refers to the large discrepancy between the abundance of primordial 7Li predicted by the standard theory of Big Bang Nucleosynthesis and the value inferred from the so-called “Spite ...
Artículo
High-accuracy determination of the 238U/ 235U fission cross section ratio up to ≈ 1 GeV at n_TOF at CERN
(American Physical Society, 2015)
The 238U to 235U fission cross section ratio has been determined at n_TOF up to ≈1 GeV, with two different detection systems, in different geometrical configurations. A total of four datasets has been collected and compared. ...