PREPARATION OF A Sb-Be PHOTONEUTRON SOURCE

Journal Article · Sun Jan 01 04:00:00 EST 1961 · Magyar Tudomanyos Akad. Atommag Kutato Intezet (Debrecen), Kozlemenyek

OSTI ID:4837071

Csikai, G; Schadek, J

The ( gamma ,n) nuclear reaction is often used as a neutron source; it is endothermic and its energy is equal to the binding energy of the neutrons. The sources thus prepared present the advantage that the energy of the emitted neutrons will be monochromatic whenever monochromatic gamma -rays are used; their use is especially desirable whenever the thermal/epithermal fiux ratio must be high. For such cases Sb--Be sources are most suitable. For the ( gamma ,n) process only the 1.692- and 2.088-Mev gamma -rays of Sb/sup 124/ can be considered; at these energies the cross section of the Be/sup 9/( gamma ,n)Be/sup 8/ reaction is about 10/sup -3/ barn. The source consists of an 18-mm diameter 23-mm high Be cylinder, prepared by hot-pressing at 500 kg under 15000 kg/cm/sup 2/ the center of which a 5.2-mm diameter Sb rod is placed. The source is activated in its Al container, then encapsulated in stainless steel. Sources have been also prepared by hot-pressing mixed Be and Sb powders. (TTT)

• Research Organization: Inst. of Nuclear Research, Hungarian Academy of Sciences, Debrecen
• NSA Number: NSA-15-031567
• OSTI ID: 4837071
• Journal Information: Magyar Tudomanyos Akad. Atommag Kutato Intezet (Debrecen), Kozlemenyek, Journal Name: Magyar Tudomanyos Akad. Atommag Kutato Intezet (Debrecen), Kozlemenyek Vol. Vol: 3
• Country of Publication: Country unknown/Code not available
• Language: Hungarian

Related Subjects

ANTIMONY 124
BERYLLIUM
BERYLLIUM 8
BERYLLIUM 9
CROSS SECTIONS
GAMMA RADIATION
NEUTRON SOURCES
NEUTRONS
NUCLEAR REACTIONS
PHOTONEUTRONS
PHYSICS
POWDERS