منابع مشابه
Neutron Capture and Neutron Halos
The connection between the neutron halo observed in light neutron rich nuclei and the neutron radiative capture process is outlined. We show how nuclear structure information such as spectroscopic factors and external components of the radial wave function of loosely bound states can be derived from the neutron capture cross section. The link between the direct radiative capture and the Coulomb...
متن کاملBoron Neutron Capture Therapy
A project aimed at the development of an accelerator facility devoted to Boron Neutron Capture Therapy (BNCT) is ongoing at the National Atomic Energy Commission of Argentina [1]. In a first stage of development, the accelerator will be capable of delivering proton or deuteron beams of 30 mA at about 1.4 MeV which is suitable for neutron production through the 9Be(d,n) reaction. In this context...
متن کاملNeutron Capture Gamma Rays ( Thermal Neutron
Detection of landmines using nuclear techniques has been studied extensively since the late 1940s. Nuclear techniques look at either a return radiation, which is characteristic of explosive components that are infrequently found in soil (e.g., nitrogen or carbon), or an intensity change of a noncharacteristic scattered radiation, which is a function of a parameter that differs between soil and ...
متن کاملNon - resonant direct p - and d - wave neutron capture by 12 C
Discrete γ-rays from the neutron capture state of 13C to its low-lying bound states have been measured using pulsed neutrons at En = 550 keV. The partial capture cross sections have been determined to be 1.7±0.5, 24.2±1.0, 2.0±0.4 and 1.0±0.4 μb for the ground (J = 1/2−), first (J = 1/2+), second (J = 3/2−) and third (J = 5/2+) excited states, respectively. From a comparison with theoretical pr...
متن کاملRESONANT NEUTRON SCATTERING FROM YBa2Cu307
We have developed a new scattering geometry for magnetic neutron scattering experiments on YBa2Cu307 in which the phonon background around q (E, -), Rw 40meV is significantly reduced. We use this new approach to study the previously detected &a& magnetic excitation at 4OmeV in the superconducting state in detail. The excitation does not shift substantially in energy up to at least 75K (-0.8T,)....
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ژورنال
عنوان ژورنال: Australian Journal of Physics
سال: 1977
ISSN: 0004-9506
DOI: 10.1071/ph770599