Verification Makhov,s profile for slow positron in Germanium
In this paper the mean penetration depths z0 and Makhov (Implantation) profile I(z,E) were evaluated for low energies positrons(1.5-30/keV)by using a distribution function of Valkealahti - Nieminen for Germanium for different thicknesses:0.2, 0.4,0.8,1.2,1.4,1.6 μm. The obtained results reveals t...
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Tikrit University
2023-02-01
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| Series: | Tikrit Journal of Pure Science |
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| Online Access: | https://tjpsj.org/index.php/tjps/article/view/1217 |
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| _version_ | 1839631449194496000 |
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| author | Sabah Mahmuoud Aman Allah |
| author_facet | Sabah Mahmuoud Aman Allah |
| author_sort | Sabah Mahmuoud Aman Allah |
| collection | DOAJ |
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In this paper the mean penetration depths z0 and Makhov (Implantation) profile I(z,E) were evaluated for low energies positrons(1.5-30/keV)by using a distribution function of Valkealahti - Nieminen for Germanium for different thicknesses:0.2, 0.4,0.8,1.2,1.4,1.6 μm. The obtained results reveals that the values of Makhov,s profile decreased exponentialy with increasing the positron energy and profile depths increasing linearly with increasing the incident energy. The shape of the Makhov,s profile reflects the shape of the energy spectrum of the positrons, which indicates the annihilation of positrons inside the material where its wavefunction is delocalized.
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| format | Article |
| id | doaj-art-826fb59f5c1e43be9edda811f6c7b191 |
| institution | Matheson Library |
| issn | 1813-1662 2415-1726 |
| language | English |
| publishDate | 2023-02-01 |
| publisher | Tikrit University |
| record_format | Article |
| series | Tikrit Journal of Pure Science |
| spelling | doaj-art-826fb59f5c1e43be9edda811f6c7b1912025-07-11T15:32:42ZengTikrit UniversityTikrit Journal of Pure Science1813-16622415-17262023-02-0120410.25130/tjps.v20i4.1217Verification Makhov,s profile for slow positron in GermaniumSabah Mahmuoud Aman Allah In this paper the mean penetration depths z0 and Makhov (Implantation) profile I(z,E) were evaluated for low energies positrons(1.5-30/keV)by using a distribution function of Valkealahti - Nieminen for Germanium for different thicknesses:0.2, 0.4,0.8,1.2,1.4,1.6 μm. The obtained results reveals that the values of Makhov,s profile decreased exponentialy with increasing the positron energy and profile depths increasing linearly with increasing the incident energy. The shape of the Makhov,s profile reflects the shape of the energy spectrum of the positrons, which indicates the annihilation of positrons inside the material where its wavefunction is delocalized. https://tjpsj.org/index.php/tjps/article/view/1217Makhov,s profile (Implantation)distribution function of Valkealahti-Nieminenpositron absorption coefficientgermanium |
| spellingShingle | Sabah Mahmuoud Aman Allah Verification Makhov,s profile for slow positron in Germanium Tikrit Journal of Pure Science Makhov,s profile (Implantation) distribution function of Valkealahti-Nieminen positron absorption coefficient germanium |
| title | Verification Makhov,s profile for slow positron in Germanium |
| title_full | Verification Makhov,s profile for slow positron in Germanium |
| title_fullStr | Verification Makhov,s profile for slow positron in Germanium |
| title_full_unstemmed | Verification Makhov,s profile for slow positron in Germanium |
| title_short | Verification Makhov,s profile for slow positron in Germanium |
| title_sort | verification makhov s profile for slow positron in germanium |
| topic | Makhov,s profile (Implantation) distribution function of Valkealahti-Nieminen positron absorption coefficient germanium |
| url | https://tjpsj.org/index.php/tjps/article/view/1217 |
| work_keys_str_mv | AT sabahmahmuoudamanallah verificationmakhovsprofileforslowpositroningermanium |