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Quantum Beam Science, Volume 7, Issue 3

2023 September - 9 articles

Cover Story: Photons with energy totaling more than 10 MeV provide efficient treatment for deeply seated tumors but interact with the nuclei of high-Z materials constituting the head of the linac. The current study used GEANT4 to calculate the photoneutron spectrum from the medical linac. The free-in-air photoneutron spectrum from the head of the linac was simulated using the NeutronHP experimental package. Validation of the simulated model was carried out based on a comparison of simulated and measured percentage depth–dose curves from photons in the water phantom. GEANT4 may improve the accuracy of calculations of the effective dose but should be improved and optimized. In the future, it may constitute a physical basis for the prediction of the risk of radiation-induced cancer. View this paper
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Articles (9)

  • Article
  • Open Access
7 Citations
3,261 Views
13 Pages

Effect of Oxygen Annealing Atmosphere on Structural, Electrical and Energy Storage Properties of Bi0.5Na0.5TiO3 Polycrystalline Thin Film

  • Ilham Hamdi Alaoui,
  • Nathalie Lemée,
  • Françoise Le Marrec,
  • Moussa Mebarki and ,
  • Anna Cantaluppi,
  • Delphine Favry and
  • Abdelilah Lahmar
  • + 2 authors+ 0 author

20 September 2023

Bismuth sodium titanate (BNT) thin films were deposited on Pt/SiN substrates by Sol-Gel spin coating technique and annealed under O2 atmosphere. The microstructural, structural, and electrical properties of the obtained film were investigated. Electr...

  • Perspective
  • Open Access
7 Citations
2,883 Views
18 Pages

13 September 2023

The existing experimental data for the γ decay of the stable N=Z doubly-odd nuclei and the β decay of the corresponding isospin multiplets is reviewed. The structure of the lightest nuclei with masses A≤14 is used to test and constrain...

(This article belongs to the Special Issue Quantum Beam Science: Feature Papers 2023)
  • Article
  • Open Access
5 Citations
6,643 Views
13 Pages

GEANT4 Simulation of Photoneutron Spectrum from Medical Linear Accelerator

  • Alexander Chernyaev,
  • Mikhail Belikhin,
  • Ekaterina Lykova and
  • Alexey Shcherbakov

Photons with energy totaling more than 10 MeV provide efficient treatment for deeply seated tumors but interact with the nuclei of high-Z materials constituting a head of the linac. These interactions result in photoneutrons that deliver an additiona...

(This article belongs to the Special Issue Quantum Beam Science: Feature Papers 2023)
  • Article
  • Open Access
2,626 Views
19 Pages

The conventional theory of neutron beams interacting with many-body systems treats the beam as a classical system, i.e., with its dynamical variables appearing in the quantum dynamics of the scattering process not as operators but only as c-numbers....

(This article belongs to the Special Issue Quantum Beam Science: Feature Papers 2023)
  • Article
  • Open Access
6 Citations
5,217 Views
13 Pages

The chemical composition and stoichiometry of vertically aligned arrays of nitrogen-doped multi-walled carbon nanotubes (N-CNTs) were studied by photoelectron spectroscopy using laboratory and synchrotron X-ray sources. We performed careful deconvolu...

(This article belongs to the Special Issue Quantum Beam Science: Feature Papers 2023)
  • Article
  • Open Access
3 Citations
4,281 Views
12 Pages

The study of the chemical composition of historical glasses is widely used in archaeometry. The results of such analyses provide information on the probable date, place, and technological features of their production. Over time, a weathered layer may...

(This article belongs to the Special Issue Quantum Beam Science: Feature Papers 2023)
  • Feature Paper
  • Article
  • Open Access
16 Citations
5,605 Views
17 Pages

Plastically deformed low-carbon steel has been analyzed by nondestructive three-dimensional orientation and strain mapping using scanning three-dimensional X-ray diffraction microscopy (S3DXRD). However, the application of S3DXRD is limited to single...

(This article belongs to the Special Issue Analysis of Strain, Stress and Texture with Quantum Beams, 2nd Edition)
  • Article
  • Open Access
5 Citations
3,766 Views
14 Pages

Laser-Induced Breakdown Spectroscopy and X-ray Fluorescence Analysis of Bronze Objects from the Late Bronze Age Baley Settlement, Bulgaria

  • Petya Penkova,
  • Galina Malcheva,
  • Margarita Grozeva,
  • Tanya Hristova and ,
  • Georgy Ivanov,
  • Stefan Alexandrov,
  • Kiril Blagoev,
  • Vani Tankova and
  • Valentin Mihailov
  • + 4 authors+ 0 author

In the presented work, a total of 60 bronze artefacts from the prehistoric settlement of Baley, Bulgaria were analyzed by means of laser-induced breakdown spectroscopy (LIBS) and X-ray fluorescence spectroscopy (XRF). The archaeological finds were ex...

(This article belongs to the Section Spectroscopy Technique)
  • Article
  • Open Access
8 Citations
3,656 Views
17 Pages

In this paper, the magnetic heating effect of the superconducting quarter-wave resonator (QWR) cavities is investigated, and the Q slopes of the superconducting cavities are measured with an increasing accelerating field. Bardeen–Cooper–S...

(This article belongs to the Special Issue Quantum Beam and Its Applications for Quantum Technologies)
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Quantum Beam Sci. - ISSN 2412-382X