title: Next generation gamma-ray Cherenkov detectors for the National Ignition Facility.
abstract: The newest generation of Gas Cherenkov Detector (GCD-3) employed in Inertial Confinement Fusion experiments at the Omega Laser Facility has provided improved performance over previous generations. Comparison of reaction histories measured using two different deuterium-tritium fusion products, namely gamma rays using GCD and neutrons using Neutron Temporal Diagnostic (NTD), have provided added credibility to both techniques. GCD-3 is now being brought to the National Ignition Facility (NIF) to supplement the existing Gamma Reaction History (GRH-6m) located 6 m from target chamber center (TCC). Initially it will be located in a reentrant well located 3.9 m from TCC. Data from GCD-3 will inform the design of a heavily-shielded "Super" GCD to be located as close as 20 cm from TCC. It will also provide a test-bed for faster optical detectors, potentially lowering the temporal resolution from the current ∼100 ps state-of-the-art photomultiplier tubes (PMT) to ∼10 ps Pulse Dilation PMT technology currently under development.
authors.affiliation: Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
authors.forename: H W
authors.initials: HW
authors.lastname: Herrmann
authors.affiliation: Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
authors.forename: Y H
authors.initials: YH
authors.lastname: Kim
authors.affiliation: Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
authors.forename: A M
authors.initials: AM
authors.lastname: McEvoy
authors.affiliation: Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
authors.forename: A B
authors.initials: AB
authors.lastname: Zylstra
authors.affiliation: Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
authors.forename: C S
authors.initials: CS
authors.lastname: Young
authors.affiliation: Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
authors.forename: F E
authors.initials: FE
authors.lastname: Lopez
authors.affiliation: Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
authors.forename: J R
authors.initials: JR
authors.lastname: Griego
authors.affiliation: Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
authors.forename: V E
authors.initials: VE
authors.lastname: Fatherley
authors.affiliation: Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
authors.forename: J A
authors.initials: JA
authors.lastname: Oertel
authors.affiliation: Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
authors.forename: W
authors.initials: W
authors.lastname: Stoeffl
authors.affiliation: Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
authors.forename: H
authors.initials: H
authors.lastname: Khater
authors.affiliation: Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
authors.forename: J E
authors.initials: JE
authors.lastname: Hernandez
authors.affiliation: Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
authors.forename: A
authors.initials: A
authors.lastname: Carpenter
authors.affiliation: Atomic Weapons Establishment, Aldermaston, Berkshire RG7 4PR, United Kingdom.
authors.forename: M S
authors.initials: MS
authors.lastname: Rubery
authors.affiliation: Atomic Weapons Establishment, Aldermaston, Berkshire RG7 4PR, United Kingdom.
authors.forename: C J
authors.initials: CJ
authors.lastname: Horsfield
authors.affiliation: Atomic Weapons Establishment, Aldermaston, Berkshire RG7 4PR, United Kingdom.
authors.forename: S
authors.initials: S
authors.lastname: Gales
authors.affiliation: Atomic Weapons Establishment, Aldermaston, Berkshire RG7 4PR, United Kingdom.
authors.forename: A
authors.initials: A
authors.lastname: Leatherland
authors.affiliation: General Atomics, San Diego, California 92186, USA.
authors.forename: T
authors.initials: T
authors.lastname: Hilsabeck
authors.affiliation: General Atomics, San Diego, California 92186, USA.
authors.forename: J D
authors.initials: JD
authors.lastname: Kilkenny
authors.affiliation: National Security Technologies, LLC, Los Alamos, New Mexico 87544, USA.
authors.forename: R M
authors.initials: RM
authors.lastname: Malone
authors.affiliation: Kentech Instruments LTD, Wallingford, United Kingdom.
authors.forename: J D
authors.initials: JD
authors.lastname: Hares
authors.affiliation: Photeck LTD, St Leonards on Sea, United Kingdom.
authors.forename: J
authors.initials: J
authors.lastname: Milnes
authors.affiliation: Laboratory for Laser Energetics, Rochester, New York 14623, USA.
authors.forename: W T
authors.initials: WT
authors.lastname: Shmayda
authors.affiliation: Laboratory for Laser Energetics, Rochester, New York 14623, USA.
authors.forename: C
authors.initials: C
authors.lastname: Stoeckl
authors.affiliation: Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
authors.forename: S H
authors.initials: SH
authors.lastname: Batha