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Quantum Beam Science, Volume 9, Issue 3

2025 September - 6 articles

Cover Story: For the first time, a mixture of lead telluride and lead/tellurium oxides produced by high-energy milling is used as a precursor to form various PbTe structures under electron beam irradiation (EBI). When conditions favor rapid transformation, the high internal energy of the multiphase mixture allows EBI to trigger immediate physical and chemical changes. These changes lower the Gibbs free energy barrier, enabling the formation of PbTe quantum dots, nanocrystals, nanoparticles, and grain-like structures with a sintered appearance, along with a small amount of non-stoichiometric phases. Post-irradiation imaging reveals morphological changes in PbTe, demonstrating its potential for thermoelectric applications due to their crystallinity and nanostructured features. View this paper
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Articles (6)

  • Feature Paper
  • Article
  • Open Access
1,021 Views
11 Pages

Measurement of the 33S(n,α)30Si Thermal Cross-Section with Slow Neutrons at ILL

  • Javier Praena,
  • Begoña Fernández,
  • Miguel Macías,
  • Ignacio Porras,
  • María Pedrosa-Rivera,
  • Hanna Koivunoro,
  • Marta Sabaté-Gilarte and
  • Fernando Arias de Saavedra

22 September 2025

This work is focused on an accurate experimental determination of the thermal 33S(n,α)30Si cross-section. This cross-section is a critical parameter for the potential use of 33S as a cooperative target in boron neutron capture therapy or to und...

  • Feature Paper
  • Article
  • Open Access
1,942 Views
20 Pages

Optimizing thermoelectric (TE) performance in two-dimensional materials has emerged as a pivotal strategy for sustainable energy conversion. This study systematically investigates the regulatory mechanisms of uniaxial strain (−2% to +2%), tempe...

  • Article
  • Open Access
1,670 Views
14 Pages

Modelling of linear accelerators using the Monte Carlo method is critical for precise radiotherapy planning. In addition, detailed and accurate dose estimation to the organ at risk can be assessed and optimized. In this study, EGSnrc Monte Carlo code...

  • Article
  • Open Access
1 Citations
1,369 Views
12 Pages

Fast Transformation of PbTe Using a Multiphase Mixture of Precursors: First Insights

  • Hugo Rojas-Chávez,
  • Nina Daneu,
  • Manuel A. Valdés-Madrigal,
  • Guillermo Carbajal-Franco,
  • Marcela Achimovičová and
  • José M. Juárez-García

For the first time, a mixture of PbTe and Pb- and Te-oxides coated with carbon, under electron beam irradiation (EBI), was transformed into quantum dots, nanocrystals, nanoparticles and grains of PbTe with a sintered appearance. A small portion of no...

  • Feature Paper
  • Article
  • Open Access
1,327 Views
10 Pages

DNA Damage Induced by Fast Neutron and Gamma Rays Evaluated Using qPCR

  • Youichirou Matuo,
  • Miyabi Yanami,
  • Shingo Tamaki,
  • Yoko Akiyama,
  • Yoshinobu Izumi,
  • Fuminobu Sato,
  • Isao Murata and
  • Kikuo Shimizu

We developed a novel dosimetric method using DNA molecules as a radiation sensor. The amount of neutron or gamma rays irradiated DNA damage was determined by evaluating the amount of DNA serving as a template for qPCR. The absorbed doses in the sampl...

  • Article
  • Open Access
1,764 Views
10 Pages

A Solid-State Three-Stage Nd:YVO4 Laser Amplifier System Based on AOM Pulse Picker-Integrated Modulator

  • Zhenyu Li,
  • Yawen Zheng,
  • Zhengtao Zhang,
  • Peipei Lu,
  • Zhen Zeng,
  • Zhongsheng Zhai and
  • Boya Xie

In recent years, ultrafast bursts with high power have been applied in many significant fields. However, the peak power of the pulse train generated by fiber lasers is limited by fiber characteristics from nonlinear effects, which can only be at the...

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Quantum Beam Sci. - ISSN 2412-382X