title: Preliminary design of a tangentially viewing imaging bolometer for NSTX-U.
abstract: The infrared imaging video bolometer (IRVB) measures plasma radiated power images using a thin metal foil. Two different designs with a tangential view of NSTX-U are made assuming a 640 × 480 (1280 × 1024) pixel, 30 (105) fps, 50 (20) mK, IR camera imaging the 9 cm × 9 cm × 2 μm Pt foil. The foil is divided into 40 × 40 (64 × 64) IRVB channels. This gives a spatial resolution of 3.4 (2.2) cm on the machine mid-plane. The noise equivalent power density of the IRVB is given as 113 (46) μW/cm2for a time resolution of 33 (20) ms. Synthetic images derived from Scrape Off Layer Plasma Simulation data using the IRVB geometry show peak signal levels ranging from ∼0.8 to ∼80 (∼0.36 to ∼26) mW/cm2.
authors.affiliation: National Institute for Fusion Science, Toki 509-5292, Japan.
authors.forename: B J
authors.initials: BJ
authors.lastname: Peterson
authors.affiliation: National Institutes for Quantum and Radiological Science and Technology, Naka, Ibaraki 311-0193, Japan.
authors.forename: R
authors.initials: R
authors.lastname: Sano
authors.affiliation: Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
authors.forename: M L
authors.initials: ML
authors.lastname: Reinke
authors.affiliation: Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
authors.forename: J M
authors.initials: JM
authors.lastname: Canik
authors.affiliation: Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA.
authors.forename: L F
authors.initials: LF
authors.lastname: Delgado-Aparicio
authors.affiliation: Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
authors.forename: J D
authors.initials: JD
authors.lastname: Lore
authors.affiliation: National Institute for Fusion Science, Toki 509-5292, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Mukai
authors.affiliation: Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
authors.forename: T K
authors.initials: TK
authors.lastname: Gray
authors.affiliation: FOM Institute DIFFER, 5612 AJ Eindhoven, The Netherlands.
authors.forename: G G
authors.initials: GG
authors.lastname: van Eden
authors.affiliation: Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA.
authors.forename: M A
authors.initials: MA
authors.lastname: Jaworski