Results 251 to 260 of about 8,528,873 (308)
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Energy calibration using scintillator background radiation for high-resolution PET detectors
, 2020Nowadays more and more positron emission tomography (PET) detectors are constructed with a LYSO crystal array coupled to a silicon photomultiplier (SiPM) array.
Liwei Wang +2 more
semanticscholar +1 more source
Determination of effective energies in CT calibration
Medical Physics, 1978The effective energy of a polychromatic beam for a Computed Tomography (CT) scanner can be measured directly only with difficulty. However, a linear relationship exists between the measured CT numbers and corresponding attenuation coefficients of known materials at the effective energy of the x-ray beam.
M R, Millner +5 more
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Understanding of binding energy calibration in XPS of lanthanum oxide by in situ treatment.
Physical Chemistry, Chemical Physics - PCCP, 2019Rare earth oxides have seen increased usage over the years in batteries and catalysts. Due to their unique electronic properties, they are the subject of fundamental and practical interest.
J. Li +8 more
semanticscholar +1 more source
Nuclear Instruments and Methods in Physics Research Section A : Accelerators, Spectrometers, Detectors and Associated Equipment, 2019
Plastic scintillators have been utilized for radiation detection in the fields of security screening and dosimetry because of their unique advantages such as low price and tissue equivalence.
Byoungil Jeon +3 more
semanticscholar +1 more source
Plastic scintillators have been utilized for radiation detection in the fields of security screening and dosimetry because of their unique advantages such as low price and tissue equivalence.
Byoungil Jeon +3 more
semanticscholar +1 more source
Energy determination for electron beam calibration
Physics in Medicine and Biology, 1988Presents the results of independent energy determinations, one by ion-chamber measurements in a water phantom, one by film analysis in a lucite phantom, and one by the ion-chamber response ratio described by the authors. The energy differences are insignificant with regard to the corresponding mass stopping power ratios needed for calibration.
J O, Freim, A, Feldman
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Spectrochimica Acta Part A - Molecular and Biomolecular Spectroscopy, 2019
Multi-Energy Calibration (MEC) was recently proposed as an innovative analytical method to be used in efficient and accurate quantitative analysis based on atomic spectroscopy.
M. C. Alencar +5 more
semanticscholar +1 more source
Multi-Energy Calibration (MEC) was recently proposed as an innovative analytical method to be used in efficient and accurate quantitative analysis based on atomic spectroscopy.
M. C. Alencar +5 more
semanticscholar +1 more source
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
openaire +2 more sources
Energy and Buildings, 2019
The calibration of heating, ventilation and air conditioning (HVAC) sub-systems provides additional information, such as sub-systems performance during operation, and circumvents compensation errors often reported in the literature for the calibration of
G. Martin +4 more
semanticscholar +1 more source
The calibration of heating, ventilation and air conditioning (HVAC) sub-systems provides additional information, such as sub-systems performance during operation, and circumvents compensation errors often reported in the literature for the calibration of
G. Martin +4 more
semanticscholar +1 more source
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.
openaire +1 more source
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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