University of Surrey

Test tubes in the lab Research in the ATI Dance Research

Relativistic quasimonoenergetic positron jets from intense laser-solid interactions.

Chen, H, Wilks, SC, Meyerhofer, DD, Bonlie, J, Chen, CD, Chen, SN, Courtois, C, Elberson, L, Gregori, G, Kruer, W , Landoas, O, Mithen, J, Myatt, J, Murphy, CD, Nilson, P, Price, D, Schneider, M, Shepherd, R, Stoeckl, C, Tabak, M, Tommasini, R and Beiersdorfer, P (2010) Relativistic quasimonoenergetic positron jets from intense laser-solid interactions. Phys Rev Lett, 105 (1).

Full text not available from this repository.


Detailed angle and energy resolved measurements of positrons ejected from the back of a gold target that was irradiated with an intense picosecond duration laser pulse reveal that the positrons are ejected in a collimated relativistic jet. The laser-positron energy conversion efficiency is ∼2×10{-4}. The jets have ∼20 degree angular divergence and the energy distributions are quasimonoenergetic with energy of 4 to 20 MeV and a beam temperature of ∼1  MeV. The sheath electric field on the surface of the target is shown to determine the positron energy. The positron angular and energy distribution is controlled by varying the sheath field, through the laser conditions and target geometry.

Item Type: Article
Divisions : Surrey research (other units)
Authors :
Chen, H
Wilks, SC
Meyerhofer, DD
Bonlie, J
Chen, CD
Chen, SN
Courtois, C
Elberson, L
Gregori, G
Kruer, W
Landoas, O
Myatt, J
Murphy, CD
Nilson, P
Price, D
Schneider, M
Shepherd, R
Stoeckl, C
Tabak, M
Tommasini, R
Beiersdorfer, P
Date : 2 July 2010
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 12:27
Last Modified : 24 Jan 2020 22:18

Actions (login required)

View Item View Item


Downloads per month over past year

Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800