Improved large-energy-range magnetic electron-positron spectrometer for experiments with the Texas Petawatt Laser. (11th March 2019) - Glenn, G.D.; Tiwari, G.; Dyer, G.; Curry, C.B.; Donovan, M.E.; Gaul, E.; Gauthier, M.; Glenzer, S.H.; Gordon, J.; Hegelich, B.M.; Martinez, M.; McCary, E.; et al.