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Quantum Beam Science, Volume 9, Issue 2

June 2025 - 11 articles

Cover Story: Even for bulk materials containing welds and coarse grains, the internal residual stress state can be seen as a detailed stress map. This is made possible by the double exposure method (DEM) using synchrotron high-energy X-rays. In addition, the residual stress under a triaxial stress state can be obtained by combining the results from the conventional neutron strain scanning method and results from the DEM. This method is the quantum beam hybrid method. In this paper, the quantum beam hybrid method was used to evaluate the residual stress in small-diameter butt-welded austenitic stainless steel piping. A unique method combining the DEM and a cross-correlation function is also proposed to determine the diffraction angle of complicated diffraction waveforms with coarse grains and texture. View this paper
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Articles (11)

  • Article
  • Open Access
1,184 Views
14 Pages

Anthropogenic Influences on the Chemical and Mineral Composition in Pond Sediment by X-Ray Absorption Spectroscopy and X-Ray Powder Diffraction

  • Jalal Sawas,
  • Derek Blanco,
  • Mary Kroll,
  • Aleida Perez,
  • Juergen Thieme,
  • Eric Dooryhee,
  • Sarah Nicholas,
  • Paul Northrup and
  • Dana Schaefer

Manmade detention ponds have historically been impacted by anthropogenic activities such as rainwater runoff, car emissions, and drainage from infrastructures, which can lead to complications for pond ecosystems. Sediment samples collected from the n...

  • Article
  • Open Access
1,040 Views
12 Pages

A Focusing Supermirror for Time-of-Flight Grazing-Incidence Small-Angle Neutron Scattering Measurement

  • Dai Yamazaki,
  • Ryuji Maruyama,
  • Hiroyuki Aoki,
  • Takayasu Hanashima,
  • Kazuhiro Akutsu-Suyama,
  • Noboru Miyata and
  • Kazuhiko Soyama

This study developed a neutron-beam-focusing supermirror for grazing-incidence small-angle neutron scattering (GISANS) measurements. We adopted point-to-point beam focusing based on an ellipse whose two foci correspond to a virtual point source and a...

  • Feature Paper
  • Article
  • Open Access
1,032 Views
11 Pages

Diffracted X-Ray Tracking for Analysis of Heterogeneity of Hydrogels

  • Hiroshi Sekiguchi,
  • Taiga Shinohara and
  • Isamu Akiba

Diffracted X-ray tracking (DXT) was applied to evaluate spatial heterogeneities in polyacrylamide gel networks. Diffraction spots from the (111) planes of gold nanocrystals (GNPs) encapsulated in the gels exhibited temporal motion during time-resolve...

  • Article
  • Open Access
1,088 Views
11 Pages

By way of studying the difference of the proton and neutron distributions in isotopes, isotones and isobars, we used the results of theoretical calculations obtained from the scattering of protons and electrons on nuclei. To calculate the differentia...

  • Article
  • Open Access
1 Citations
1,021 Views
10 Pages

An Electrospinning Sample Delivery Device for Synchrotron-Based Biomacromolecule Serial Crystallography Research

  • Li Yu,
  • Zhijun Wang,
  • Qin Xu,
  • Bo Sun,
  • Qingjie Xiao,
  • Weiwei Wang,
  • Yuzhu Wang,
  • Qisheng Wang and
  • Jianhua He

Serial crystallography is a rapidly advancing experimental technology that has seen significant development in recent years. This technique enables the continuous delivery of a series of protein crystal samples to the X-ray beam, allowing for the col...

  • Article
  • Open Access
1,147 Views
13 Pages

Impact of Pseudo-Random Number Generators on Dosimetric Parameters in Validation of Medical Linear Accelerator Head Simulation for 6 MV Photons Using the GATE/GEANT4 Platform

  • Meriem Tantaoui,
  • Mustapha Krim,
  • El Mehdi Essaidi,
  • Othmane Kaanouch,
  • Mohammed Reda Mesradi,
  • Abdelkrim Kartouni and
  • Souha Sahraoui

Monte Carlo simulation relies on pseudo-random number generators. In general, the quality of these generators can have a direct impact on simulation results. The GATE toolbox, widely adopted in radiotherapy, offers three generators from which users c...

  • Feature Paper
  • Article
  • Open Access
1,720 Views
15 Pages

Residual Stresses of Small-Bore Butt-Welded Piping Measured by Quantum Beam Hybrid Method

  • Kenji Suzuki,
  • Yasufumi Miura,
  • Hidenori Toyokawa,
  • Ayumi Shiro,
  • Takahisa Shobu,
  • Satoshi Morooka and
  • Yuki Shibayama

Cracks due to stress corrosion cracking in stainless steels are becoming a problem not only in boiling water reactors but also in pressurized water reactor nuclear plants. Stress improvement measures have been implemented mainly for large-bore welded...

  • Article
  • Open Access
1,588 Views
14 Pages

Generation of Coupled Nonlinear Oscillations in Charged-Particle Beam by Crossed Magnetic Fields

  • Alexander R. Karimov,
  • Grigoriy O. Buyanov,
  • Alexander E. Shikanov and
  • Konstantin I. Kozlovskij

Based on the cold-fluid hydrodynamic description, the interaction of a non-relativistic charged-particle beam with crossed magnetic fields is studied. This process results in the transfer of energy/momentum from the field to the beam, which, in turn,...

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

The Impact of Superconducting Properties of Micron-Scale Masked Proton Irradiation on BaTiO3-Doped YBCO Film

  • Di Chen,
  • Paththini Kuttige S. Nonis,
  • Sudaice Kazibwe,
  • Liangzi Deng and
  • Ching-Wu Chu

This study investigates the effects of 60 keV proton irradiation on BaTiO3-doped YBa2Cu3O7−δ (YBCO) films using masks with micron-scale holes to create controlled defect patterns aimed at enhancing superconducting properties. Contrary to...

  • Article
  • Open Access
3 Citations
2,330 Views
13 Pages

Boron neutron capture therapy (BNCT) is a specialized cancer treatment that leverages the high absorption cross-section of boron for thermal neutrons. When boron captures neutrons, it undergoes a nuclear reaction that produces alpha particles and lit...

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Quantum Beam Sci. - ISSN 2412-382X