Relevance of β-delayed neutron data for reactor, nuclear physics and astrophysics applications

Initially, yields (or abundances) and branching ratios of β-delayed neutrons (βdn) from fission products (P{sub n}-values) have had their main importance in nuclear reactor control. At that time, the six-group mathematical approximation of the time-dependence of βdn-data in terms of the so-called &#...

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Bibliographic Details
Main Author: Kratz, Karl-Ludwig
Format: Conference Proceeding
Language:English
Subjects:
APPROXIMATIONS
ASTROPHYSICS
CONTROL
DELAYED NEUTRONS
EXCITATION
FISSION PRODUCTS
FISSION YIELD
NEUTRON SPECTROSCOPY
NUCLEAR PHYSICS AND RADIATION PHYSICS
NUCLEAR STRUCTURE
TIME DEPENDENCE
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Summary:Initially, yields (or abundances) and branching ratios of β-delayed neutrons (βdn) from fission products (P{sub n}-values) have had their main importance in nuclear reactor control. At that time, the six-group mathematical approximation of the time-dependence of βdn-data in terms of the so-called 'Keepin groups' was generally accepted. Later, with the development of high-resolution neutron spectroscopy, βdn data have provided important information on nuclear-structure properties at intermediate excitation energy in nuclei far from stability, as well as in nuclear astrophysics. In this paper, I will present some examples of the βdn-studies performed by the Kernchemie Mainz group during the past three decades. This work has been recognized as an example of 'broad scientific diversity' which has led to my nomination for the 2014 Hans A. Bethe prize.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4909565