| Autor: |
S. C. Fultz, N.E. Hansen, C.R. Hatcher, R. L. Bramblett |
| Rok vydání: |
1961 |
| Předmět: |
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| Zdroj: |
Nuclear Instruments and Methods. 14:337-342 |
| ISSN: |
0029-554X |
| Popis: |
The energy spread of the photon line produced by annihilation of 15-MeV positrons in a thin LiH target has been measured. Positrons are produced by bombarding a Ta target with 10-MeV electrons from a linear accelerator. The positrons are accelerated energy-analyzed with a bending magnet-slit assembly. The photon line width measurement was made by counting the number of photons elastically scattered from the 15.11-MeV level of C12 as a function of positron energy setting. The annihilation photon line was found to have a full width at half maximum of 0.45±0.05 MeV. An annihilation photon energy spectrum was calculated and found to be in agreement with experimental results. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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