Mostrando 1,121 - 1,140 Resultados de 1,262 Para Buscar '"Compton"', tiempo de consulta: 0.16s Limitar resultados
  1. 1121
  2. 1122
  3. 1123
    por Joram, Christian
    Publicado 2013
    “…The results entirely meet the performance expectations ( <2 mm FWHM in all three coordinates over the complete held of view) and also demonstrated the ability to include Compton interactions (inter-crystal scatter) in the reconstruction without noticeable performance loss. …”
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  4. 1124
    por Kunc, Stepan
    Publicado 2018
    “…The difference in the refraction indexes of the ordinary and extraordinary ray is directly related to fundamental constants, such as fine structure constant or Compton wavelength. Contributions to VMB could also arise from the existence of light scalar or pseudoscalar particles, such as axions or axions like particles. …”
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  5. 1125
    por Cueto Gomez, Ana Rosario
    Publicado 2018
    “…Measurements of prompt-photon production at the Large Hadron Collider provide a handle on the gluon density in the proton by means of the Compton scattering and can be used to constrain the gluon density function inside the proton. …”
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  6. 1126
    por Wuensch, Walter
    Publicado 2022
    “…</span></span></span></p> <p><span><span><span>Short bio:</span></span></span></p> <p><span><span><strong>Walter Wuensch</strong> is a principle applied physicist in the Radio-Frequency group at CERN currently leading the development of high-performance linac technology for multiple applications including CLIC and a broad range of next-generation compact accelerators including XFELs, Inverse Compton Sources and medical linacs. The accelerator technology development is complemented by both theoretical and experimental investigations of the fundamental processes which occur at high-gradients including field emission and breakdown. …”
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  7. 1127
    “…The usage of the Pixel Chamber as scatterer detector in Compton Cameras would reduce by orders of magnitude the numbers of gammas required for performing a precise source imaging, both for in vivo monitoring during hadron therapy and for astrophysics measurements.…”
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  8. 1128
    “…The CERN Gamma Factory proposal has the potential of increasing by 7 orders of magnitude the intensity limits of the present Inverse Compton Scattering sources. In 2017 the CERN accelerator complex demonstrated its flexibility by producing a new, xenon ion beam. …”
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  9. 1129
    “…Moreover, we describe a new concept of such a system based on position-sensitive scintillator detectors equipped with an anti-Compton shield and data analysis supported with modern artificial intelligence algorithms.…”
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    Online Artículo Texto
  10. 1130
    “…A laser-driven electron-storage ring can produce nearly monochromatic, tunable X-rays in the keV energy regime by inverse Compton scattering. The small footprint, relative low cost and excellent beam quality provide the prospect for valuable preclinical use in radiography and tomography. …”
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    Online Artículo Texto
  11. 1131
    “…Moreover, because electron distribution can be described in momentum or in position space, charge and spin density have two definitions and they can be observed through Bragg (for the position space) or Compton (for the momentum space) diffraction experiments, using X-rays (charge density) or polarized neutrons (spin density). …”
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    Online Artículo Texto
  12. 1132
    “…In this range, the predominant gamma ray interaction with matter is by Compton scattering effect, as the photoelectric absorption effect diminishes. …”
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    Online Artículo Texto
  13. 1133
    “…In addition to the conventional polyenergetic images created for each patient, projection-space decomposition is used to generate spectral basis images (photoelectric and Compton scatter) for creating multiple spectral images, including material decomposition (iodine-only, virtual non-contrast, effective atomic number) and virtual monoenergetic images, on-demand according to clinical need. …”
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    Online Artículo Texto
  14. 1134
    “…The detectors, exploiting the measurement of the 478 keV prompt gamma rays emitted by 94% (7)Li nuclides from the (10)B(n, α)(7)Li reaction, are very appealing for the development of single-photon emission computed tomography (SPECT) systems and Compton cameras in BNCT. High-resolution gamma-ray spectra from (10)B samples under thermal neutrons were measured at the T.R.I.G.A. …”
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    Online Artículo Texto
  15. 1135
  16. 1136
    “…This contribution reviews some of the latest detector developments in detection systems for (n,$\gamma$) measurements at n_TOF, such as i-TED, an innovative detection system which exploits the Compton imaging technique to reduce the dominant neutron scattering background and s-TED, a highly segmented total energy detector intended for high flux facilities. …”
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  17. 1137
  18. 1138
    “…Compton-scattered photons included within the photopeak pulse-height window result in the degradation of SPECT images both qualitatively and quantitatively. …”
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    Online Artículo Texto
  19. 1139
    “…Our results indicate that photons carrying orbital angular momentum should be created naturally by cyclotron/synchrotron radiations or Compton scatterings in various situations in cosmic space. …”
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  20. 1140
    “…However, quantification of SPECT images is degraded by many factors such as Compton photon scattering. This could have a destructive effect on clinical reports so it is important to do scatter correction to get better quality SPECT images. …”
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