If we consider the mean generation time to be ~0.1s, the increase from 1000 neutrons to 1105 neutrons occurs within 10 seconds. Theinfinite multiplication factorin a multiplying system measures the change in the fissionneutron populationfrom one neutron generation to the subsequent ge...
mean generation timemultiplication factoradjoint fluxThe ambiguity of the mean time from birth of a neutron to its loss in a critical reactor is presented. The neutron lifetime defined as the adjoint-weighted mean loss time should not be interpreted as the mean time from birth of a neutron to...
Words You Always Have to Look Up Democracy or Republic: What's the difference? Every Letter Is Silent, Sometimes: A-Z List of Examples Popular in Wordplay See More What do SCOTUS, POTUS, and FLOTUS mean? 'When Pigs Fly' and Other Barnyard Idioms ...
Words You Always Have to Look Up Democracy or Republic: What's the difference? Every Letter Is Silent, Sometimes: A-Z List of Examples Popular in Wordplay See More What do SCOTUS, POTUS, and FLOTUS mean? 'When Pigs Fly' and Other Barnyard Idioms ...
where Λ is the mean generation time, βi is the fraction of neutrons for each delayed group, λi is the decay constant for each delayed group, and Ci (t) is number of precursors for each delayed group as a function of time. When (1 − βeff) k = 1, the reactor in this case...
wherelfis the mean time between fission iterations and\(\left\langle {\nu_{p} } \right\rangle\)is the average number of prompt neutrons released per fission. With the use of Eqs. (4.29), (4.30), and (4.31), the intensity of correlated probabilityCin Eq. (4.27) can be expressed as ...
Neutron events were detected by a time-of-flight (ToF) system consisting of four plastic scintillators positioned at various angles around the experimental chamber. The maximum cut- off energy of the forward accelerated protons and deuterons was close to 1.4 MeV and 1 MeV, while the mean ...
Boron carbide has a complex crystal structure [29,30] constituted of nearly regular icosahedra (mean composition B11C, C located on polar sites) interconnected according to a rhombohedral network, Fig. 15.8. The bonding is mainly covalent, this conferring its thermomechanical properties. The center...
the total neutron yield is 1.5 × 1011n/s with a mean neutron energy of 38 keV and a mean neutron angle of 23° [21]. For a H−ion beam diameter of 5 cm and with an ion beam current of 65 mA, the average neutron yield for 1% DF operation is approximately 1 × 1010n/s, ...
& Wang, Y. Glass ceramic phosphors: towards long-lifetime high-power white light-emitting-diode applications-a review. Laser Photonics Rev. 12, 1700344 (2018). Article ADS Google Scholar Zhang, R. et al. A new-generation color converter for high-power white LED: transparent Ce3+:YAG ...