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DOI 10.5286/raltr.2013011
Persistent URL http://purl.org/net/epubs/work/10698348
Record Status Checked
Record Id 10698348
Title Survey and Monitoring of Relativistic Electrons in Petawatt Laser Shots - Some Options
Abstract The exciting products of petawatt laser shots, charged particles and gamma rays of energies up to 100MeV and attosecond light pulses depend on the primary production of relativistic electrons (i.e. with energies comparable to or greater than the electron rest mass). On the negative side, recent work at Lawrence Livermore National Laboratory and recent analysis by the present authors points the finger at the flux of high energy (MeV) electrons leaving the target as the cause of the damaging electromagnetic pulse (EMP) frequently associated with such shots. Monitoring the magnitude and distribution of these electrons within a shot is clearly desirable. This report discusses the problems associated with this procedure and proposes some relatively simple detector systems appropriate to the task. Passive, dynamic and time domain detector types are considered using both the Cerenkov and scintillation processes. The Cerenkov type is shown to provide the maximum differentiation between electron flux and the other types of radiation present.
Organisation CLF , STFC
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Language English (EN)
Type Details URI(s) Local file(s) Year
Report RAL Technical Reports RAL-TR-2013-011. STFC, 2013. RAL-TR-2013-011.pdf 2013