Results 271 to 280 of about 256,292 (310)
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Lineal energy calibration of a spherical TEPC
Radiation Protection Dosimetry, 2015Tissue-equivalent proportional counters (TEPCs) do not always allow built-in calibration alpha-particle sources, and the lineal energy calibration of these counters must be performed with an external radiation able to penetrate the detector walls. The irradiation field can be used for calibration if a particular marker point of known lineal energy is ...
D, Moro +4 more
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Calibration of a proton beam energy monitora)
Medical Physics, 2007Delivery of therapeutic proton beams requires an absolute energy accuracy of to for patch fields and a relative energy accuracy of to for tailoring the depth dose distribution using the energy stacking technique. Achromatic switchyard tunes, which lead to better stability of the beam incident onto the patient, unfortunately limit the ability of ...
M F, Moyers +5 more
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Energy calibration measurements of MediPix2
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2008Abstract Real-time measurement of the composition and spectroscopic characteristics of the radiation field inside the ATLAS detector and cavern will be carried out with MediPix2 devices. In view of this application, a calibration of the low energy threshold was performed by illuminating the devices with low energy photons, using 241Am sources and X ...
Fiederle, Michael +10 more
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Canadian Journal of Physics, 1959
A new betatron energy controlling circuit is described which has many advantages over those previously used. It is shown that there is a linear relationship between the helipot control on this circuit and the momentum of the electrons in the betatron just prior to striking the X-ray producing target.
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A new betatron energy controlling circuit is described which has many advantages over those previously used. It is shown that there is a linear relationship between the helipot control on this circuit and the momentum of the electrons in the betatron just prior to striking the X-ray producing target.
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Calibration of electron-energy spectrometers
Journal of Electron Spectroscopy and Related Phenomena, 1976Relative photoionization cross-sections of strong peaks in the He(I) photoelectron spectra of N2, CO, CO2, and O2 are tabulated. These data have been measured with an electron energy analyzer whose relative luminosity has been calibrated to an accuracy of + or - 5%. Thus, the tables will be useful for calibrating the transmission of other analyzers for
J.L. Gardner, James A.R. Samson
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The energy calibration of tandem accelerators
Nuclear Instruments and Methods, 1969Abstract The beam energy homogeneity, stability and reproducibility of a model MP tandem Van de Graaff accelerator has been investigated. The 90° analyzing magnet system was calibrated using a number of (p,n) thresholds whose proton energies are known absolutely in the range from 4 to 10 MeV.
J.C. Overley, P.D. Parker, D.A. Bromley
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Energy Calibration of Electron Spectrometers
1980One of the principal useful features of electron spectroscopy for chemical analysis (ESCA) is the identification of chemical states by the use of chemical shifts in the energies of photoelectron and Auger lines. For this purpose, the proper operation of electron spectrometers requires an accurate voltage scale.
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Gamma-ray calibration energies
Nuclear Data Sheets. Section A, 1968A tabulation is given of γ -ray energies which are suitable for calibrating high-resolution γ -ray spectrometers. Data from studies of both radioactive sources and nuclear reactions are included, allowing precision calibration in the range 25 keV ...
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AIP Conference Proceedings, 1992
This report describes the calibration of the beam energy of the Large Electron‐Positron Collider (LEP) at CERN for the 1991 running period. An intensive program of investigations and the utilization of resonant de‐polarization of transversely polarized electron beams led to improved measurements of the mass, MZ, and the width, ΓZ, of the Z0 boson.
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This report describes the calibration of the beam energy of the Large Electron‐Positron Collider (LEP) at CERN for the 1991 running period. An intensive program of investigations and the utilization of resonant de‐polarization of transversely polarized electron beams led to improved measurements of the mass, MZ, and the width, ΓZ, of the Z0 boson.
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Recommended Values of Calibration Energies
1964Since the time of the last International Conference on Nuclidic Masses, there has been considerable activity in several different phases of precision beam energy measurements. First, several new absolute measurements have been made of the energies of standard calibration points, two of these using an altogether new technique.
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