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Positron Production in Tungsten Crystals by 1.2-GeV Channeling Electrons
- Source :
- Scopus-Elsevier
- Publication Year :
- 1998
- Publisher :
- American Physical Society (APS), 1998.
-
Abstract
- The efficiency of positron production by a 1.2-GeV electron beam incident on a tungsten single crystal oriented in an axially channeling condition has been experimentally studied. Positron yields from a 1.2-mm-thick crystal have been measured to be ,2.5 3.0 times larger than those from amorphous targets with the same thickness. A simple model simulation of the positron production process shows that coherent bremsstrahlung, as well as channeling radiation, contributes to the enhancement of the positron yields. [S0031-9007(98)05357-5]
- Subjects :
- Materials science
Astrophysics::High Energy Astrophysical Phenomena
Bremsstrahlung
General Physics and Astronomy
chemistry.chemical_element
Electron
Tungsten
Amorphous solid
Crystal
Positron
chemistry
Cathode ray
Physics::Accelerator Physics
High Energy Physics::Experiment
Atomic physics
Single crystal
Subjects
Details
- ISSN :
- 10797114 and 00319007
- Volume :
- 80
- Database :
- OpenAIRE
- Journal :
- Physical Review Letters
- Accession number :
- edsair.doi.dedup.....a0ec661b9c54fb7877f3d8f7da827dbe