Sentence examples for using a point source from inspiring English sources
Kohno et al. (2008) estimated the locations of the pressure sources activated by the latest eruption from geodetic data using a point source assumption.
In order to achieve accurate image quantification, camera calibration, necessary to convert counts in the reconstructed image to activity, was performed using a point source and a planar acquisition.
Figure 5 shows a comparison of the actual ash distribution from (Pardo et al., 2014) along the approximately north-south State Highway 1 and nearby roads with the output from both ASHFALL and HYSPLIT for a north-south profile at 175.81° E (about 12 km east of Te Maari), using a point source for ASHFALL and a 1.5 km diameter cylindrical source for HYSPLIT.
The method was proposed and demonstrated using a point source and acquiring simultaneously speckle measurements at multiple distances using 2D array of detectors like a CCD or CMOS camera and/or measuring speckles at different exposure times.
Spectra of 99mTc, Tl and I were measured using a method similar to the "intrinsic ER" test defined in NEMA NU-1 2001 standard section 2.2, on both DNM and S-SPECT detectors without collimation, using a point source.
At 1-mm distance from a point source of [F]FDG, the sensitivity for positrons was found to be roughly 250 cps/kBq, while the FWHM was calculated as 5 mm using a point source.
They found, through simulations performed using a point source-detection measurement geometry, that the reconstructions performed by solving the non-linear problem using a Newton-type method were more accurate than the reconstructions obtained using linearised forward models and linear regularisation methods.
It uses a point source of monochromatic light at the focus of a quality lens.
An alternative approach is to use a point source in a scattering object (Fig. 4 b) [71].
For the numerical simulation, we used a point source representation of the 2011 Tohoku Earthquake (Mw 9.0) by Kumagai et al. (2012) as example input.
In both clinical and small-animal PET, spatial resolution is measured using a point or line source, reconstructed with filtered back projection (FBP).
