{"paper":{"title":"Bright 5 - 85 MeV Compton gamma-ray pulses from GeV laser-plasma accelerator and plasma mirror","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.acc-ph","authors_text":"A. C. Bernstein, A. Hannasch, C. Wagner, E. Gaul, G. Dyer, H.-E. Tsai, J. Gordon, J. M. Shaw, J. Welch, K. Weichman, M. C. Downer, M. Donovan, M. LaBerge, M. Martinez, M. Spinks, N. Fazel, R. Zgadzaj, T. Ditmire, T. Toncian, W. Henderson, X. Wang, Y. Y. Chang","submitted_at":"2017-05-24T07:20:07Z","abstract_excerpt":"We convert a GeV laser-plasma electron accelerator into a compact femtosecond-pulsed $\\gamma$-ray source by inserting a $100 \\mu$m-thick glass plate $\\sim3$ cm after the accelerator exit. With near-unity reliability, and requiring only crude alignment, this glass plasma mirror retro-reflected spent drive laser pulses (photon energy $\\hbar\\omega_L = 1.17$ eV) with $>50\\%$ efficiency back onto trailing electrons (peak Lorentz factor $1000 < \\gamma_e < 4400$), creating an optical undulator that generated $\\sim10^8 \\gamma$-ray photons with sub-mrad divergence, estimated peak brilliance $\\sim10^{21"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.08637","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}