Results 251 to 260 of about 568,064 (303)

Analysis of epicardial adipose tissue in relation to arterial hypertension using radiomics in photon-counting CT. [PDF]

open access: yesFront Cardiovasc Med
Waßmer F   +5 more
europepmc   +1 more source

Photon Counting Histogram for One-Photon Excitation [PDF]

open access: yesChemPhysChem, 2003
The photon counting histogram (PCH) analysis is a fluorescence fluctuation method that is able to characterize the brightness and concentration of different fluorescent species present in a liquid sample. We find that the PCH model using a three-dimensional Gaussian observation volume profile is inadequate for fitting experimental data obtained from a ...
Richard Zare, Mark I Wallace
exaly   +4 more sources
Some of the next articles are maybe not open access.

Related searches:

Photon Counting

Applied Optics, 1968
The fundamentals of photon counting using photomultipliers are described, including criteria for selecting suitable photomultipliers, some of the precautions that must be taken in using these devices, and methods of calculating the counting errors that may occur under various conditions of measurement.
G A Morton
exaly   +3 more sources

Photon-Counting CT Review [PDF]

open access: yesPhysica Medica, 2020
Photon-counting detectors are a promising new technology for computed tomography (CT) systems. They provide energy-resolved CT data at very high spatial resolution without electronic noise and with improved tissue contrasts. This review article gives an overview of the principles of photon-counting detector CT, of potential clinical benefits and ...
Stefan Ulzheimer   +2 more
exaly   +3 more sources

Photon counting with photodiodes

Applied Optics, 1983
Preliminary results concerning the use of silicon photodiodes designed to be used in the photon counting or Geiger mode are described. These Geiger photodiodes have higher detected quantum efficiency than photomultiplier tubes over the 5000–9000-A wavelength region and are especially superior at longer wavelengths, although they can only be used in the
T E, Ingerson   +2 more
openaire   +2 more sources

Photon Counting Histogram: One-Photon Excitation

ChemPhysChem, 2004
AbstractThe photon counting histogram (PCH) analysis is a fluorescence fluctuation method that is able to characterize the brightness and concentration of different fluorescent species present in a liquid sample. We find that the PCH model using a three‐dimensional Gaussian observation volume profile is inadequate for fitting experimental data obtained
Richard Zare
exaly   +3 more sources

Photon-Counting Polarizing Radiometer

Applied Optics, 1974
Photon counting is used in this instrument to obtain high precision in the measurement of the intensity, degree of polarization, and orientation of the plane of polarization of light in the natural environment. The dual-channel configuration, with four interference filters in each channel, provides the possibility of measurements in eight narrow ...
K L, Coulson   +3 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy