Research output: Contribution to journal › Article › peer-review
Diagnostics of peak laser intensity by pair production from thin foil target. / Lécz, Zsolt; Andreev, Alexander.
In: Laser Physics Letters, Vol. 17, No. 5, 056101, 05.2020.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Diagnostics of peak laser intensity by pair production from thin foil target
AU - Lécz, Zsolt
AU - Andreev, Alexander
N1 - Publisher Copyright: © 2020 Astro Ltd. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/5
Y1 - 2020/5
N2 - It is known that in the small quantum parameter regime the Breit-Wheeler electron-positron pair creation cross section is extremely sensitive on the photon energy and on the background field. We present the dependence of positron yield on laser intensity in laser-foil interactions with the help of analytical theory and particle-in-cell simulaitons. These particles are emitted in a relatively narrow range of cone angles close to perpendicular direction relative to the laser beam axis. This allows for establishing an in situ intensity diagnostic by measuring the positron current in experiments where peta-watt class lasers are used.
AB - It is known that in the small quantum parameter regime the Breit-Wheeler electron-positron pair creation cross section is extremely sensitive on the photon energy and on the background field. We present the dependence of positron yield on laser intensity in laser-foil interactions with the help of analytical theory and particle-in-cell simulaitons. These particles are emitted in a relatively narrow range of cone angles close to perpendicular direction relative to the laser beam axis. This allows for establishing an in situ intensity diagnostic by measuring the positron current in experiments where peta-watt class lasers are used.
KW - QED in plasmas
KW - high power lasers
KW - laser intensity diagnostics
KW - ENERGY
UR - http://www.scopus.com/inward/record.url?scp=85085309348&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/718ec5b0-e9cb-32fd-87b8-40a13b6a6a98/
U2 - 10.1088/1612-202X/ab83fe
DO - 10.1088/1612-202X/ab83fe
M3 - Article
AN - SCOPUS:85085309348
VL - 17
JO - Laser Physics Letters
JF - Laser Physics Letters
SN - 1612-2011
IS - 5
M1 - 056101
ER -
ID: 71736147