title: Plastic fiber scintillator response to fast neutrons.
abstract: The Neutron Imaging System at NIF uses an array of plastic scintillator fibers in conjunction with a time-gated imaging system to form an image of the neutron emission from the imploded capsule. By gating on neutrons that have scattered from the 14.1 MeV DT energy to lower energy ranges, an image of the dense, cold fuel around the hotspot is also obtained. An unmoderated spallation neutron beamline at the Weapons Neutron Research facility at Los Alamos was used in conjunction with a time-gated imaging system to measure the yield of a scintillating fiber array over several energy bands ranging from 1 to 15 MeV. The results and comparison to simulation are presented.
authors.affiliation: Los Alamos National Laboratory, Los Alamos, New Mexico 87544, USA.
authors.forename: C R
authors.initials: CR
authors.lastname: Danly
authors.affiliation: Los Alamos National Laboratory, Los Alamos, New Mexico 87544, USA.
authors.forename: S
authors.initials: S
authors.lastname: Sjue
authors.affiliation: Los Alamos National Laboratory, Los Alamos, New Mexico 87544, USA.
authors.forename: C H
authors.initials: CH
authors.lastname: Wilde
authors.affiliation: Los Alamos National Laboratory, Los Alamos, New Mexico 87544, USA.
authors.forename: F E
authors.initials: FE
authors.lastname: Merrill
authors.affiliation: Los Alamos National Laboratory, Los Alamos, New Mexico 87544, USA.
authors.forename: R C
authors.initials: RC
authors.lastname: Haight