title: Design and fabrication of a window for the gas Cherenkov detector 3.
abstract: The gas Cherenkov detector 3 was designed at Los Alamos National Laboratory for use in inertial confinement fusion experiments at both the Omega Laser Facility and the National Ignition Facility. This instrument uses a low-Z gamma-to-electron convertor plate and high pressure gas to convert MeV gammas into UV/visible Cherenkov photons for fast optical detection. This is a follow-on diagnostic from previous versions, with two notable differences: the pressure of the gas is four times higher, and it allows the use of fluorinated gas, requiring metal seals. These changes force significant changes in the window component, having a unique set of requirements and footprint limitations. The selected solution for this component, a sapphire window brazed into a stainless steel flange housing, is described.
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: D A
authors.initials: DA
authors.lastname: Bingham
authors.affiliation: Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
authors.forename: M D
authors.initials: MD
authors.lastname: Cartelli
authors.affiliation: EnvirOptics, Inc., Colmar, Pennsylvania 18915, USA.
authors.forename: R A
authors.initials: RA
authors.lastname: DiDomizio
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: H W
authors.initials: HW
authors.lastname: Herrmann
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 A
authors.initials: JA
authors.lastname: Oertel
authors.affiliation: EnvirOptics, Inc., Colmar, Pennsylvania 18915, USA.
authors.forename: M J
authors.initials: MJ
authors.lastname: Pollack