Author: M. R. HertzPublisher:
ISBN:
Category : Gamma rays
Languages : en
Pages : 60
Book Description
Gamma Radiation from Polonium Neutron Sources
Author: M. R. HertzPublisher:
ISBN:
Category : Gamma rays
Languages : en
Pages : 60
Book Description
Gamma Radiation from Polonium Neutron Sources. (Information Report).
Author: Preparation, Properties, and Availability of Polonium Neutron Sources
Author: U.S. Atomic Energy CommissionPublisher:
ISBN:
Category : Polonium
Languages : en
Pages : 24
Book Description
Bibliography of Published Literature on the Preparation and Properties of Radioactive Neutron Sources
Author: U.S. Atomic Energy CommissionPublisher:
ISBN:
Category : Radioactivity
Languages : en
Pages : 44
Book Description
Neutrons from ([alpha], N) Sources
![Neutrons from ([alpha], N) Sources PDF](https://books.google.com/books/content/images/frontcover/PA_3J37gaukC?fife=w80-h100)
Author: Wilmot N. HessPublisher:
ISBN:
Category : Alpha rays
Languages : en
Pages : 46
Book Description
The Physics and Shielding Aspects of Heterogeneous Isotopic Neutron Sources
Author: Donald Frank KnuthPublisher:
ISBN:
Category :
Languages : en
Pages : 56
Book Description
This study is concerned with the feasibility of constructing an isotopic neutron source which has the characteristic that it can be turned on or off at the option of the user. The alpha-neutron reaction was selected to be the source of neutrons. It was desired that a suitable combination of radioisotope material and target material be selected which exhibited a high neutron yield when the two materials were placed into the on mode, and yet exhibited low radiation intensities when the source was in the off mode. This way, a compace source of high intensity would be possible which would require little or no shielding when not in use. Source half-life, material availability and cost were considered. It was concluded that two radioactive materials, polonium-210 and plutonium-238, appeared to be the most attractive radioisotope materials. For a mechanical on-off system, beryllium was considered to be the best target material since it exhibits the highest yield in an alpha-neutron reaction. Typical neutron energy spectra and neutron yeilds were calculated which showed that the ratio of neutrons emitted while in the on mode compared to the off mode was on the order of 10,000. Calculations were made of neutron and gamma ray intensities.
Processing and Properties of Polonium-208
Author: G. L. FoxEnergy and Angular Distribution of Neutrons and Gamma Rays
Author: J. H. ThorngatePublisher:
ISBN:
Category : Gamma rays
Languages : en
Pages : 80
Book Description
Where possible, these data have been compared with data from previous field experiments. In every case, they were compared with calculations which approximated the experiment. Agreement in both cases is generally good, and this strengthens confidence in calculated results.
The Spectrum of Polonium-beryllium Neutron Sources
Author: R. J. BreenPublisher:
ISBN:
Category : Beryllium
Languages : en
Pages : 56
Book Description
Passive Nondestructive Assay of Nuclear Materials
Author: Doug ReillyPublisher:
ISBN: 9780160327247
Category : Non-destructive testing
Languages : en
Pages : 700
Book Description