Determination of Projectile Proton Beam Energy for the Best Yield of as-Isotopes from Ge-Crystal
| dc.contributor.author | Tessema, Genene | |
| dc.date.accessioned | 2018-06-25T13:27:09Z | |
| dc.date.accessioned | 2023-11-09T11:23:34Z | |
| dc.date.available | 2018-06-25T13:27:09Z | |
| dc.date.available | 2023-11-09T11:23:34Z | |
| dc.date.issued | 1995-06 | |
| dc.description.abstract | To extract information for the appropriate proton beam energy, which will be used for irradiating natural Ge crystal for the best yield of As isotopes, is the mere objective of this work. Five slices of natural Ge crystal with various thickness have been prepared in order to make energy degradation, and a proton beam energy of 35MeV is set to be incident onto the fIrst slice. After irradiation measurement~ have been taken from each slice using a ~(Li) detector, and spectral analysis are also carried out. From the complete spectral analysis and using a computer simulation programme called Transport of Ions in Matter (TRllvI) the projectile proton beam energies are determined for the best yield of 71 As, 71 As, '4As, '6As, 6'~, and 6'Ga isotopes. In this thesis the experimental results are di~cussed, and calculations are carried out for the cross-sections of the observed reaction product. From the dependence of the cross-section versus projectile beam energy, extrapolation is made to estimate the corresponding threshold energy for the reactions to occur | en_US |
| dc.identifier.uri | http://10.90.10.223:4000/handle/123456789/3345 | |
| dc.language.iso | en | en_US |
| dc.publisher | Addis Ababa University | en_US |
| dc.subject | The Best Yield of as-Isotopes from Ge-Crystal | en_US |
| dc.title | Determination of Projectile Proton Beam Energy for the Best Yield of as-Isotopes from Ge-Crystal | en_US |
| dc.type | Thesis | en_US |