与 «DELAYED NEUTRON»相关的英语书籍
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delayed neutron的用法。与
delayed neutron相关的书籍以及同一来源的简短摘要提供其在 英语文献中的使用情境。
1
Delayed Neutron Group Parameters from Photofission
This dissertation presents a theoretical basis and the experimental procedure for the determination of delayed neutron group parameters resulting from photofission for three fissionable materials (238U, 232Th, and 239Pu).
Mathew Thomas Kinlaw, 2007
2
Nuclear Principles in Engineering
Delayed neutron precursors Not all neutrons are released at the same time
following a fission event. Nearly 99% of all neutrons are released virtually
instantaneously (within about 10–13 s) after the actual fission event. These
neutrons are ...
3
Improved
Neutron Kinetics for Coupled Three-dimensional ...
0.940 0.945 0.950 0.955 0.960 0.965 0.970 0.975 0.980 0.985 0 1 2 3 4 5 6 7
Burnup (GWd/t) Delayed Neutron Group 1 Delayed Neutron Group 2 Delayed
Neutron Group 3 Delayed Neutron Group 4 Delayed Neutron Group 5 Delayed ...
4
Nuclear Reactor Physics
Moreover, for a transient below prompt critical, the largest part of the neutron
source is due to the decay of delayed neutron precursors, which tends to hold
back a flux tilt until the delayed neutron precursor distribution also tilts. The point
...
Echo, M. W. and Turk, E. H., Quantitative determination of U-235 by delayed
neutron counting, U.S. AEC Report PTR-143, January 28, 1957; and report TID
7531 (Pt 1) p. 153, A conference: Modern Approaches to Isotopic Analysis of
Uranium, ...
6
Nuclear Systems: Elements Of Thermal Design
where N(t) = neutron density Cj(t) = effective precursor concentration for group i p
= reactivity /* = mean neutron generation time /3 = total effective delayed neutron
fraction (j8 = Sf=,j8,) j8, = effective delayed neutron fraction of group i A, ...
7
Nuclear Reactor Kinetics and Plant Control
1.3 Prompt Neutron and Delayed Neutron Most neutrons (99.35 % for 235U
fission by thermal neutrons) are emitted immediately by a nuclear fission event.
These are called “prompt neutrons.” A few neutrons are emitted a little after
nuclear ...
Yoshiaki Oka, Katsuo Suzuki, 2013
8
Neutron Fluctuations: A Treatise on the Physics of Branching ...
Here, however, we shall instead use the traditional derivation with the forward
and backward equations. In order to calculate the moments, a master equation
will be considered for the joint distribution of neutrons, one group of delayed
neutron ...
Imre Pazsit, Lenard Pal, 2007
The delayed neutron fraction, β, can be estimated from a zero-dimensional
neutronics calculation by weighting the delayed neutron fraction of each
fissionable isotope with the number of neutrons produced from fissions by that
isotope, ...
Alan E. Waltar, Donald R. Todd, Pavel V. Tsvetkov, 2011
10
Reactor Dosimetry: Methods, Applications, and Standardization
The relation between the number of counts in a delayed neutron counter and the
neutron flux, *, based on the empirical Keepin [11] six- group representation of
the delayed neutron data is given by where e = efficiency of the detector, P =
mass ...
Harry Farrar, E. P. Lippincott, 1989
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Public Release: 18-Feb-2015 Getting a grip on exotic atomic nuclei
Delayed neutron emission is also of importance here on Earth: it makes it relatively easy to monitor the progression of nuclear reactions in ... «EurekAlert, 二月 15»
Where Does the Energy Come From in LENR?
... beta-delayed neutron emissions and beta-delayed alpha decays among others. Different values of energy release are associated with each ... «New Energy Times, 一月 12»
Recreating a Stellar Electron Catch
GT- distributions do not directly constrain electron capture rates, but they are relevant for the determination of half-lives, beta-delayed neutron ... «Physical Review Focus, 十一月 11»
