Results 1 - 10
of
12,410
Table 5: The areas, detection efficiencies, and background rates of 1yplcal hand- held and transportable neutron and gamma-ray detectors apos;
"... In PAGE 9: ... More massive detectors would be more sensitive, but their application to treaty verification will probably be limited to fixed portals through which objects to be inspected would pass.- Table5 summarizes the neutron- and gamma- ray-detector characteristics used here, together with typical background rates; table 6 gives the distance from the four weapon models at which the neutron or gamma-ray signal equals the background counting rate in the detector. As table 6 shows, the neutron signal from weapons containing plutonium * The helicopter-mounted detecwr that made the measurements reported in the paper by... ..."
Table 7: The maximum detection range for a given detection time for neutron and gamma-ray emissions from each weapon model If a signal of 5 standard deviations relative to background fluctuations is required
Table 1 | Flux Limits on Fast Gamma Ray Pulsars P energy
"... In PAGE 4: ... No pulsars, either isolated or in binary systems, have been detected to date. We give upper limits to a selection of our searches in Table1 and a typical power spectrum in Figure 1. A typical OSSE observation during the sky survey portion of the Compton Observatory mission last two weeks.... ..."
Table I: Event rates in AMANDA detector. For models accommodating the di use GeV background the rates are larger by 2 orders of magnitude. The rst column is the redshift of the burst, the second (third) column is the signal without (with) absorption of gamma rays in intergalactic backgrounds. In each columns the results is given for zenith angle = 60 and = 0. The fourth column gives the signal to square root of noise corresponding to column 3. The 5th column shows the time in days between bursts with z lower than the value shown in the rst column. The role of absorption for gamma ray detection is evident. Nearby bursts with z lt; 0:1 provide the best opportunity for detection. Their frequency is of the order of 1 burst every 2 3 years.
TABLE III GAMMA-RAY STRENGTH
1977
Table 2: Elemental Contributions to Gamma-Ray Lines in Percent
"... In PAGE 8: ... (1990). Table2 lists eight of these features and estimates of the fractional contributions to each feature from speci c solar elements (Ramaty, Kozlovsky, and Lingenfelter, 1979; Ramaty and Kozlovsky 1994). Note that although the listed energies of the features are those of the primary de-excitation line, other lines not resolvable by the spectrometer and at slightly di erent energies may also contribute to the measured line strength.... In PAGE 10: ....1. FIP Abundance Variations As elemental abundances in various solar regions have been shown to be dependent on rst ionization potential (FIP), it makes sense to study the are-to- are line variability using this grouping. From Table2 we see that the lines at 0.... In PAGE 16: ...spallation products for harder spectra (see Table2 ).) A similar analysis reveals that the Ne/(C + N + O) ratio is also inversely correlated with spectral index at the 2:5 level.... ..."
Table 1. Shower and gamma-ray like event selection criteria.
Table 1.1: classifications of gamma-ray astronomy [38].
Table 1. Cumulative percentages of events passing gamma-ray
1998
Table 1. Gamma Ray Sources
"... In PAGE 5: ... In some cases the numerical portions of these names di er slightly from those which have been used to identify these sources in previous publications because of more data and the improved di use model. Table1 contains information about the ux, position, and identi cation of the sources. The photon ux for energy gt; 100 MeV is presented, along with the value of pTs in this band.... ..."
Results 1 - 10
of
12,410