gamma emission

gamma emission

[¦gam·ə i′mish·ən]
(nuclear physics)
A quantum transition between two energy levels of a nucleus in which a gamma ray is emitted. Also known as gamma decay.
References in periodicals archive ?
Contract award notice: Supply contract for the manufacturing, Assembling, Delivering and support of a passive gamma emission tomography system ("pget") for verification of spent fuel assemblies from light-water reactors
Authorities said that "the aircraft, highly specialized, was equipped with sensors to measure the magnetic field of the earth, and count natural gamma emission from soil particles, but not harmful materials to the environment."
Observations of flare that generated gamma emission by SONG were restricted due to contamination of the detector count rate by high-energy particles during a passage of CORONAS-F through the radiation belts or due to arriving of solar high-energy particles.
A third type is gamma emission, in which the atom gives off a highly energetic photon along with the alpha or beta particle.
The [.sup.57]Co and [.sup.133]Ba sources were designed to produce a gamma emission rate equivalent to a bare source activity of 1.67 MBq (45 [micro]Ci) and 11.1 MBq (300 [micro]Ci) respectively.
The aim of the current study was to use gamma emission computed tomography (CT) to identify regions of preferred flow caused by inherent heterogeneity in some regolith materials from the Gilmore project, as they responded to incrementally reduced electrolyte levels present in the percolating fluid.
"It has very little neutron, very little gamma emission ...
The prompt gammas emitted from chlorine are considered as secondary standards for detector calibrations because of the high-thermal neutron capture cross section of chlorine and also because of the wide range of high-intensity gamma emissions up to 8.5 MeV [14].
The high energy gamma emissions of 364 keV, however, are a drawback due to poor image quality resulting in less than optimal evaluation of extent of disease and quantitation.
Appendices list Rutherford backscattering spectrometry kinematic factors, Rutherford cross sections, photon-induced gamma emissions, and x-ray energies.
In the process, neutrons are produced without gamma emissions. Analogously, the researchers theorize further that neutron flux increments, in correspondence to seismic activity, should be a result of the same reactions.
Demron, the world's first-of-its-kind fabric is providing our military and first responders the best protection against nuclear, radiological and biological agents and is currently the world's first and only full-body, radiation-protection fabric that shields against X-ray and low-energy Gamma emissions while also providing complete anti-chemical and biological protection.