Absolute levels of total-body calcium can be determined by exposing a subject to a uniform neutron depth flux from 14-MeV neutrons produced by the 3H(d, n)4He reaction. The induced 49Ca can be measured with a whole-body counter with an invariant response to geometry and attenuation. This ...
Simple formulae for optical potentials are given as a function of energy and mass number from which neutron cross-sections can be calculated from 1 to 15 MeV for medium and heavy nuclei.doi:10.1016/0029-5582(64)90184-1D. WilmoreP.E. Hodgson...
International Journal of Applied Radiation & IsotopesCOHN SH, DOMBROWSKI CS, FAIRCHILDRG: In vivo neutron activation analysis of calcium in man. Intern J App! Radiat21: 127a€"13179,70Cohn SH, Dombrowski CS, Fairchild RG. In vivo neutron activation analysis of calcium in man. Int J Appl ...
radius of the 1f(,7/2) orbital. The combined data indicate that the. radius varies with nucleon number roughly as A('.1(+OR -).1). While the. result is consistent with no change in the radius, the theoretical. uncertainties in inferring rms radii from existing transfer reaction. data ...
Realistic shell-model calculations for neutron-rich calcium isotopes We study the neutron-rich calcium isotopes performing shell-model calculations with a realistic effective interaction. This is derived from the CD-Bonn nucleon-nucleon potential renormalized by way of the V-low-k approach, considering...
Twitter Google Share on Facebook neutron spectrometer [′nü‚trän spek′träm·əd·ər] (nucleonics) An instrument used to determine the energies of neutrons and the relative intensities of neutrons of different energies in a neutron beam. ...
To look for the most neutron-rich isotopes of these elements, the team fired a high-energy beam of calcium-48 ions at a beryllium target. The calcium nuclei undergo fragmentation to create smaller nuclei, which were studied by the team. This was done using BigRIPS, which sorts nuclei accord...
The vibrational spectra (Raman, photoacoustic and Fourier transform infrared and inelastic neutron scattering) of the calcium, strontium and europium salts of hexahydrido- and hexadeuteridoruthenate(II) have been analyzed. All observed fundamental modes and overtone and combination bands are assigned. ...
Neutron activation analysisis not a common technique for cobalt analysis. However, it can be used as a multielement technique when determining a large number of trace elements without destroying the sample. Furthermore, it is a well-established technique for multielement determination at ultratrace lev...
Vesta also has a large number of equatorial troughs (Buczkowski et al., 2012), which have characteristics consistent with graben (a depressed part of the crust bounded by faults). The visual geometric albedo of Vesta varies from 0.10 to 0.67 (Reddy et al., 2012a), which is the largest ...