title: Characterization of spatially resolved high resolution x-ray spectrometers for high energy density physics and light source experiments.
abstract: A high resolution 1D imaging x-ray spectrometer concept comprising a spherically bent crystal and a 2D pixelated detector is being optimized for diagnostics of small sources such as high energy density physics (HEDP) and synchrotron radiation or x-ray free electron laser experiments. This instrument is used on tokamak experiments for Doppler measurements of ion temperature and plasma flow velocity profiles. Laboratory measurements demonstrate a resolving power, E/ΔE of order 10,000 and spatial resolution better than 10 μm. Initial tests of the high resolution instrument on HEDP plasmas are being performed.
authors.affiliation: Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA.
authors.forename: K W
authors.initials: KW
authors.lastname: Hill
authors.affiliation: Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA.
authors.forename: M
authors.initials: M
authors.lastname: Bitter
authors.affiliation: Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA.
authors.forename: L
authors.initials: L
authors.lastname: Delgado-Aparacio
authors.affiliation: Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA.
authors.forename: P
authors.initials: P
authors.lastname: Efthimion
authors.affiliation: Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA.
authors.forename: N A
authors.initials: NA
authors.lastname: Pablant
authors.affiliation: Key Laboratory of Optoelectronic Technology and System of Ministry of Education, Chongqing University, Chongqing 400030, China.
authors.forename: J
authors.initials: J
authors.lastname: Lu
authors.affiliation: Physics Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
authors.forename: P
authors.initials: P
authors.lastname: Beiersdorfer
authors.affiliation: Physics Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
authors.forename: H
authors.initials: H
authors.lastname: Chen
authors.affiliation: Physics Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
authors.forename: E
authors.initials: E
authors.lastname: Magee