Making relativistic positrons using ultraintense short pulse lasers by Chen, H, Wilks, S, Bonlie, J, Chen, SN, Cone, K, Elberson, L, Gregori, G, Meyerhofer, D, Myatt, J, Price, D, Schneider, M, Shepherd, R, Stafford, D, Tommasini, R, Van Maren, R, Beiersdorfer, P

Relativistic quasimonoenergetic positron jets from intense laser-solid interactions. by Chen, H, Wilks, S, Meyerhofer, D, Bonlie, J, Chen, C, Chen, SN, Courtois, C, Elberson, L, Gregori, G, Kruer, W, Landoas, O, Mithen, J, Myatt, J, Murphy, C, Nilson, P, Price, D, Schneider, M, Shepherd, R, Stoeckl, C, Tabak, M, Tommasini, R, Beiersdorfer, P