@proceedings{18385,
   author = {Vykydal, Zdeněk and Králík, Miloslav and Jančář, Aleš and Kopecký, Zdeněk and Dressler, Jan and Veškrna, Martin},
   keywords = {graphite pile; thermal neutrons; He-3 detector; neutron source},
   language = {eng},
   title = {Characterization of the Graphite Pile as a Source of Thermal Neutrons},
   year = {2014}
}

TY  - CONF
ID  - 18385
AU  - Vykydal, Zdeněk - Králík, Miloslav - Jančář, Aleš - Kopecký, Zdeněk - Dressler, Jan - Veškrna, Martin
PY  - 2014
TI  - Characterization of the Graphite Pile as a Source of Thermal Neutrons
KW  - graphite pile
KW  - thermal neutrons
KW  - He-3 detector
KW  - neutron source
N2  - The absorption cross sections of low energy neutrons obey 1/v law for most materials. Therefore, the detection efficiency of a particular detector increase with decreasing neutron energy. Consequently, most of neutron measuring instruments consist of the detector of thermal neutrons which is located inside of the polyethylene moderator. Development of such instruments requires testing and response calibrations in the field of thermal neutrons. Availability of thermal neutron beams on nuclear reactors is limited and access to them is rather complicated, so it is more convenient to moderate neutrons from the radionuclide neutron sources. Since radionuclide neutron sources are producing fast neutrons it is necessary to use an appropriate moderator material like heavy water or graphite to thermalize neutrons from the source and to avoid thermal neutron capture in the same time.
ER  - 

VYKYDAL, Zdeněk, Miloslav KRÁLÍK, Aleš JANČÁŘ, Zdeněk KOPECKÝ, Jan DRESSLER a Martin VEŠKRNA. \textit{Characterization of the Graphite Pile as a Source of Thermal Neutrons}. 2014.