title: Health physics measurement of Princeton Tokamaks, 1977-1987.
abstract: The Princeton Plasma Physics Laboratory (PPPL) began fusion experiments in 1951. In the early years, the major health physics concerns were associated with x radiation produced by energetic electrons in the plasma. Within the past year, neutron and 3H production from 2H-2H (represented hereafter as D-D) reactions has increased significantly on the larger fusion devices. Tritium retention noted in graphite tiles underscores the significance of material selection in present and future 3H-fueled fusion devices. This paper reports on operational health physics radiation measurements made on various PPPL machines over the past 10 y.
authors.affiliation: Princeton Plasma Physics Laboratory, NJ 08543.
authors.forename: J R
authors.initials: JR
authors.lastname: Stencel
authors.forename: J D
authors.initials: JD
authors.lastname: Gilbert
authors.forename: J G
authors.initials: JG
authors.lastname: Couch
authors.forename: O A
authors.initials: OA
authors.lastname: Griesbach
authors.forename: J J
authors.initials: JJ
authors.lastname: Fennimore
authors.forename: J M
authors.initials: JM
authors.lastname: Greco
mesh_terms: D006283:Health Physics; D009502:Neutrons; D009678:Nuclear Energy; D009681:Nuclear Fusion; D011874:Radiometry / Q000379:methods; D014316:Tritium
chemical_list: D014316:Tritium