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59:38 FIPP_July2022 FIPP_July2022	FIPP_July2022 laser electron plasma energy pair beam frequency field qed pairs density regime parameter process positron physics photon factor experiment intensity ppplonly From PPPL Admins 0 likes 0 plays
01:02:47 FIPP_September2020 FIPP_September2020	FIPP_September2020 pppl plasma beam energy field electron physics particle accelerators particles electrons experiments positron laser linear gev accelerator collider structure beams power captions_11_4_2020 From PPPL Admins 0 likes 35 plays