Sentence examples for use a point source from inspiring English sources

An alternative approach is to use a point source in a scattering object (Fig. 4 b) [71].

It uses a point source of monochromatic light at the focus of a quality lens.

Kohno et al. (2008) estimated the locations of the pressure sources activated by the latest eruption from geodetic data using a point source assumption.

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 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.

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.

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.

Different other techniques may be applied to improve recovery of activity concentration in periodically moving lesions such as gated PET/CT (in which data are only acquired during a certain respiratory phase), respiratory correlated dynamic PET/CT (by summing the sinograms of images of a particular breathing phase selected using a point source) or deep inspiration breath-hold PET/CT [ 27].

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.