Results 11 to 20 of about 304 (178)

Study of prompt gamma and neutron emission for real-time range verification in proton and carbon-ion therapy. [PDF]

Med Phys
Abstract Background Accurate range verification is crucial in hadrontherapy to fully exploit the ballistic advantages of charged particles and prevent damage to healthy tissues. Among the proposed approaches, prompt gamma imaging (PGI) has emerged as an effective technique for real‐time monitoring, but its performance is limited by the intense neutron ...
Bellotti ES, Mazzucconi D, Bortot D, Pola A, Fiorini C, Urban K, Agosteo S.   +6 more
europepmc   +2 more sources

A comparative analysis of GEANT4, MCNP6 and FLUKA on proton-induced gamma-ray simulation. [PDF]

Med Phys
Abstract Background Precise range verification is essential in proton therapy to minimize treatment margins due to the steep dose fall‐off of proton beams. The emission of secondary radiation from nuclear reactions between incident particles and tissues stands out as a promising method for range verification. Two prominent techniques are PET and Prompt
Freitas H, Nobakht E, Grüner F, Seco J.
europepmc   +2 more sources

Gamma-ray spectra and absorbed doses measured at EuXFEL undulator system. [PDF]

J Synchrotron Radiat
The origin and composition of the stray radiation at the EuXFEL undulator system are investigated. This is essential for machine protection, as the stray radiation can damage the undulator permanent magnets as well as the correction and diagnostic equipment along the beamline.Characterization of the stray radiation field present in the undulator ...
Falowska-Pietrzak O, Hedqvist A, Hellberg F, Wolff-Fabris F, Bassler N.   +4 more
europepmc   +2 more sources

Evading the Illusions: Identification of False Peaks in Micro‐Raman Spectroscopy and Guidelines for Scientific Best Practice

Angewandte Chemie, Volume 135, Issue 43, October 23, 2023., 2023
Raman spectroscopy is a great analysis tool but the spectra are sometimes difficult to interpret due to the occurrence of spectral artefacts. This paper dives into the details of many spurious signals and spectral artefacts that occur in Raman spectra, explains their origin, and provides the tools to identify and avoid them.
Jakob Thyr, Tomas Edvinsson
wiley   +2 more sources

Nanoscopic biodosimetry using plasmid DNA in radiotherapy with metallic nanoparticles

Journal of Applied Clinical Medical Physics, Volume 24, Issue 2, February 2023., 2023
Abstract Nanoscopic lesions (complex damages), are the most lethal lesions for the cells. As nanoparticles have become increasingly popular in radiation therapy and the importance of analyzing nanoscopic dose enhancement has increased, a reliable tool for nanodosimetry has become indispensable. In this regard, the DNA plasmid is a widely used tool as a
Elham Mansouri, Asghar Mesbahi, Mohammad Saied Hejazi, Soheila Montazersaheb, Vahideh Tarhriz, Tohid Ghasemnejad, Mojtaba Zarei   +6 more
wiley   +1 more source

Deducing the EOS of dense neutron star matter with machine learning

Astronomische Nachrichten, Volume 344, Issue 1-2, January-February 2023., 2023
Abstract The interior of a neutron star is a unique astrophysical laboratory for studying matter at extreme densities and pressures beyond what is replicable in terrestrial experiments. While there is no direct way to simulate the interior of these stars, one promising avenue to learning more about the equation of state (EOS) of such matter is through ...
Delaney Farrell, Pierre Baldi, Jordan Ott, Aishik Ghosh, Andrew W. Steiner, Atharva Kavitkar, Lee Lindblom, Daniel Whiteson, Fridolin Weber   +8 more
wiley   +1 more source

Exotic Hadron Spectroscopy [PDF]

EPJ Web of Conferences, 2014
Since ten years ago experiments have been observing a host of exotic states decaying into heavy quarkonia. The interpretation of most of them still remains uncertain and, in some cases, controversial. Notwithstanding, a considerable progress has been made on the quality of the experimental information available and a number of ideas and models have ...
openaire   +4 more sources

First experimental measurements of 2D microdosimetry maps in proton therapy

Medical Physics, Volume 50, Issue 1, Page 570-581, January 2023., 2023
Abstract Background Empirical data in proton therapy indicate that relative biological effectiveness (RBE) is not constant, and it is directly related to the linear energy transfer (LET). The experimental assessment of LET with high resolution would be a powerful tool for minimizing the LET hot spots in intensity‐modulated proton therapy, RBE‐ or LET ...
Consuelo Guardiola, Diana Bachiller‐Perea, Emmanuel M. Mate Kole, Celeste Fleta, David Quirion, Ludovic De Marzi, Faustino Gómez   +6 more
wiley   +1 more source

Lattice QCD spectroscopy for hadronic CP violation

Physics Letters B, 2017
The interpretation of nuclear electric dipole moment (EDM) experiments is clouded by large theoretical uncertainties associated with nonperturbative matrix elements.
Jordy de Vries, Emanuele Mereghetti, Chien-Yeah Seng, André Walker-Loud   +3 more
doaj   +1 more source

Light hadron spectroscopy [PDF]

Nuclear Physics B - Proceedings Supplements, 1998
Recent developments in calculations of the light hadron spectrum are reviewed. Particular emphasis is placed on discussion of to what extent the quenched spectrum agrees with experiment. Recent progress, both for quenched and full QCD, in reducing scaling violation with the use of improved actions is presented.
openaire   +2 more sources