Common type of gamma-ray sources 翻译结果4复制译文编辑译文朗读译文返回顶部 Common gamma-ray source types 翻译结果5复制译文编辑译文朗读译文返回顶部 Commonly used gamma beam source type 相关内容 aCan l hve an orange ? 能l hve桔子?[translate] ...
There are long-focus and short-focus types of gamma-ray source. The short-focus type, in which the distance from the source to the patient’s skin is less than 25 cm, is intended for the irradiation of tumors no deeper than 3-4 cm and usually uses sources with an activity of up to...
In extragalactic space gamma ray blazars, i.e., certain types of active galactic nuclei (AGN) emitting high energy gamma rays, had been discovered (Hartman et al., 1999), and measurements of the diffuse cosmic gamma ray background have been significantly improved in recent years. On the ...
cosmic nucleosynthesis with space experiments: Supernovae 1987A, 1998bu and 1991T have been studied in radioactivity from the 56 Ni decay chain, 44Ti from Cas A opened a new supernova window, and diffuse 26Al radioactivity maps offer insights into the nucleosynthesis of specific source typesdoi...
separate these source types and support this model. Present-day gamma-ray telescopes have not seen any largescale60Fe signal at the level expected from dominating core-collapse26Al production, but the upper limits still allow for substantialsupernovacontributions, given the uncertainty of source ...
Among the many exciting measurements that have been made, most gamma-ray sources are of Galactic origin. I will concentrate here on an overview of Galactic observations and summarise and discuss observations of selected objects of the different source types....
Subsequently, we co-added maps of counts, exposure and diffuse background, and residuals, in varying numbers for different sub-categories of putatively and known source populations (like PSRs). Finally we tested for gamma-ray excess emission in those maps and attempt to quantify the systematic ...
Other interesting discoveries lie in the few dozen objects above 100 MeV that do not belong to the classical types of extragalactic gamma-ray sources, namely blazars and radio galaxies. For example, narrow-line Seyfert 1 (NLSY1) galaxies can display jets with an inferred power similar to that...
The 36 sensors were thoroughly tested with a 22Na and a 137Cs gamma-ray sources, and with an AmBe neutron and gamma-ray source, the results are quite satisfactory, and the next step will be the test in a real environment. Keywords: gamma-ray counters; radwaste management; radwaste ...
Explore gamma rays. Learn the definition of a gamma ray and see its characteristics. Find the sources of gamma rays on Earth and outer space, and...