Journal article

Measuring electron-positron annihilation radiation from laser plasma interactions.

Abstract:
We investigated various diagnostic techniques to measure the 511 keV annihilation radiations. These include step-wedge filters, transmission crystal spectroscopy, single-hit CCD detectors, and streaked scintillating detection. While none of the diagnostics recorded conclusive results, the step-wedge filter that is sensitive to the energy range between 100 keV and 700 keV shows a signal around 500 keV that is clearly departing from a pure Bremsstrahlung spectrum and that we ascribe to annihilation radiation.
Publication status:
Published

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Publisher copy:
10.1063/1.4734038

Authors

Tommasini, R More by this author
Feldman, U More by this author
Journal:
The Review of scientific instruments
Volume:
83
Issue:
10
Pages:
10E113
Publication date:
2012-10-05
DOI:
EISSN:
1089-7623
ISSN:
0034-6748
URN:
uuid:f6f28561-5f93-4cc0-a40d-7dd6f9b87193
Source identifiers:
364405
Local pid:
pubs:364405
Language:
English