title: High-dynamic-range neutron time-of-flight detector used to infer the D(t,n)4He and D(d,n)3He reaction yield and ion temperature on OMEGA.
abstract: Upgraded microchannel-plate-based photomultiplier tubes (MCP-PMT's) with increased stability to signal-shape linearity have been implemented on the 13.4-m neutron time-of-flight (nTOF) detector at the Omega Laser Facility. This diagnostic uses oxygenated xylene doped with diphenyloxazole C15H11NO + p-bis-(o-methylstyryl)-benzene (PPO + bis-MSB) wavelength shifting dyes and is coupled through four viewing ports to fast-gating MCP-PMT's, each with a different gain to allow one to measure the light output over a dynamic range of 1 × 106. With these enhancements, the 13.4-m nTOF can measure the D(t,n)4He and D(d,n)3He reaction yields and average ion temperatures in a single line of sight. Once calibrated for absolute neutron sensitivity, the nTOF detectors can be used to measure the neutron yield from 1 × 109to 1 × 1014and the ion temperature with an accuracy approaching 5% for both the D(t,n)4He and D(d,n)3He reactions.
authors.affiliation: Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623-1299, USA.
authors.forename: C J
authors.initials: CJ
authors.lastname: Forrest
authors.affiliation: Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623-1299, USA.
authors.forename: V Yu
authors.initials: VY
authors.lastname: Glebov
authors.affiliation: Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623-1299, USA.
authors.forename: V N
authors.initials: VN
authors.lastname: Goncharov
authors.affiliation: Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623-1299, USA.
authors.forename: J P
authors.initials: JP
authors.lastname: Knauer
authors.affiliation: Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623-1299, USA.
authors.forename: P B
authors.initials: PB
authors.lastname: Radha
authors.affiliation: Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623-1299, USA.
authors.forename: S P
authors.initials: SP
authors.lastname: Regan
authors.affiliation: Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623-1299, USA.
authors.forename: M H
authors.initials: MH
authors.lastname: Romanofsky
authors.affiliation: Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623-1299, USA.
authors.forename: T C
authors.initials: TC
authors.lastname: Sangster
authors.affiliation: Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623-1299, USA.
authors.forename: M J
authors.initials: MJ
authors.lastname: Shoup
authors.affiliation: Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623-1299, USA.
authors.forename: C
authors.initials: C
authors.lastname: Stoeckl