C. A. Kilbourne
A5089896724- Superconducting and THz Device Technology
- Particle Detector Development and Performance
- Physics of Superconductivity and Magnetism
- X-ray Spectroscopy and Fluorescence Analysis
- Atomic and Molecular Physics
- Astrophysical Phenomena and Observations
- Superconducting Materials and Applications
- Astrophysics and Cosmic Phenomena
- Calibration and Measurement Techniques
- Thermal Radiation and Cooling Technologies
- Advanced Thermodynamic Systems and Engines
- Nuclear Physics and Applications
- Spacecraft and Cryogenic Technologies
- Galaxies: Formation, Evolution, Phenomena
- Particle accelerators and beam dynamics
- Superconductivity in MgB2 and Alloys
- Laser-induced spectroscopy and plasma
- Dark Matter and Cosmic Phenomena
- Astrophysics and Star Formation Studies
- Gamma-ray bursts and supernovae
- Microwave Engineering and Waveguides
- Astro and Planetary Science
- Astronomical Observations and Instrumentation
- Advanced Thermoelectric Materials and Devices
- Advanced X-ray and CT Imaging
Goddard Space Flight Center
2016-2025
National Aeronautics and Space Administration
2004-2025
University of Maryland, Baltimore County
2009-2024
Association of Research Libraries
2023
Northwestern University
2020-2022
Lawrence Livermore National Laboratory
2005-2020
Deleted Institution
2013-2019
Rikkyo University
2016-2017
Kanazawa University
2009-2017
Sandia National Laboratories California
2017
High-sensitivity wide-band X-ray spectroscopy is the key feature of Suzaku observatory, launched on 2005 July 10. This paper summarizes spacecraft, in-orbit performance, operations, and data processing that are related to observations. The scientific instruments, high-throughput telescopes, CCD cameras, non-imaging hard detector also described.
The X-ray Integral Field Unit (X-IFU) is the high resolution spectrometer of ESA Athena observatory. Over a field view 5' equivalent diameter, it will deliver spectra from 0.2 to 12 keV with spectral 2.5 eV up 7 on ∼ 5" pixels. X-IFU based large format array super-conducting molybdenum-gold Transition Edge Sensors cooled at 90 mK, each coupled an absorber made gold and bismuth pitch 249 μm. A cryogenic anti-coincidence detector located underneath prime TES enables non background be reduced....
The energy splitting of the $^{229}\mathrm{Th}$ ground-state doublet is measured to be $7.6\ifmmode\pm\else\textpm\fi{}0.5\text{ }\text{ }\mathrm{eV}$, significantly greater than earlier measurements. Gamma rays produced following alpha decay $^{233}\mathrm{U}$ ($105\text{ }\ensuremath{\mu}\mathrm{Ci}$) were counted in NASA/electron beam ion trap x-ray microcalorimeter spectrometer with an experimental resolution 26 eV (FWHM). A difference technique was applied gamma-ray 71.82 keV level that...
The joint JAXA/NASA ASTRO-H mission is the sixth in a series of highly successful X-ray missions initiated by Institute Space and Astronautical Science (ISAS). will investigate physics high-energy universe performing high-resolution, high-throughput spectroscopy with moderate angular resolution. covers very wide energy range from 0.3 keV to 600 keV. allows combination band (5-80 keV) provided multilayer coating, focusing hard mirrors imaging detectors, high energy-resolution soft (0.3-12...
The ASTRO-H mission was designed and developed through an international collaboration of JAXA, NASA, ESA, the CSA. It successfully launched on February 17, 2016, then named Hitomi. During in-orbit verification phase, on-board observational instruments functioned as expected. intricate coolant refrigeration systems for soft X-ray spectrometer (SXS, a quantum micro-calorimeter) imager (SXI, CCD) also However, March 26, operations were prematurely terminated by series abnormal events mishaps...
The X-ray Integral Field Unit (X-IFU) on board the Advanced Telescope for High-ENergy Astrophysics (Athena) will provide spatially resolved high-resolution spectroscopy from 0.2 to 12 keV, with 5 arc second pixels over a field of view minute equivalent diameter and spectral resolution 2.5 eV up 7 keV. In this paper, we first review core scientific objectives Athena, driving main performance parameters X-IFU, namely resolution, view, effective area, count rate capabilities, instrumental...
Abstract High-resolution X-ray spectroscopy with Hitomi was expected to resolve the origin of faint unidentified emission line reported in several low-resolution studies various massive systems, such as galaxies and clusters, including Perseus cluster. We have analyzed first-light observation The for based on XMM-Newton signal from large cluster sample under dark matter decay scenario is too be detectable data. However, previously 3.5 keV flux anomalously high compared sample-based...
We present the overall design and performance of Astro-H (Hitomi) Soft X-Ray Spectrometer (SXS). The instrument uses a 36-pixel array x-ray microcalorimeters at focus grazing-incidence mirror Telescope (SXT) for high-resolution spectroscopy celestial sources. was designed to achieve an energy resolution better than 7 eV over 0.3-12 keV range operate more 3 years in orbit. actual is 4-5 as demonstrated during extensive ground testing prior launch measured mass flow rate liquid helium cryogen...
The X-Ray Imaging and Spectroscopy Mission (XRISM) is the successor to 2016 Hitomi mission that ended prematurely. Like Hitomi, primary science goals are examine astrophysical problems with precise highresolution X-ray spectroscopy. XRISM promises discover new horizons in astronomy. carries a 6 x pixelized micro-calorimeter on focal plane of an mirror assembly co-aligned CCD camera covers same energy band over large field view. utilizes heritage, but all designs were reviewed. attitude orbit...
The Line Emission Mapper (LEM) is an X-ray Probe for the 2030s that will answer outstanding questions of Universe's structure formation. It also provide transformative new observing capabilities every area astrophysics, and to heliophysics planetary physics as well. LEM's main goal a comprehensive look at galaxy formation, including stellar black-hole feedback flows baryonic matter into out galaxies. These processes are best studied in X-rays, emission-line mapping pressing need this area....
Abstract The X-Ray Spectrometer (XRS) has been designed to provide the Suzaku Observatory with non-dispersive, high-resolution X-ray spectroscopy. As designed, instrument covers energy range 0.3 12 keV, which encompasses most diagnostically rich part of band. sensor consists a 32-channel array microcalorimeters, each an resolution about 6 eV. very low temperature required for operation (60 mK) is provided by four-stage cooling system containing single-stage adiabatic demagnetization...
The joint JAXA/NASA ASTRO-H mission is the sixth in a series of highly successful X-ray missions initiated by Institute Space and Astronautical Science (ISAS). will investigate physics high-energy universe via suite four instruments, covering very wide energy range, from 0.3 keV to 600 keV. These instruments include high-resolution, high-throughput spectrometer sensitive over 0.3-2 with high spectral resolution Delta E < 7 eV, enabled micro-calorimeter array located focal plane thin-foil...
The joint JAXA/NASA ASTRO-H mission is the sixth in a series of highly successful X-ray missions developed by Institute Space and Astronautical Science (ISAS), with planned launch 2015. equipped suite sensitive instruments highest energy resolution ever achieved at E > 3 keV wide range spanning four decades from soft X-rays to gamma-rays. simultaneous broad band pass, coupled high spectral Delta < 7 eV micro-calorimeter, will enable variety important science themes be pursued. expected...
The Hitomi (ASTRO-H) mission is the sixth Japanese X-ray astronomy satellite developed by a large international collaboration, including Japan, USA, Canada, and Europe. aimed to provide highest energy resolution ever achieved at E > 2 keV, using microcalorimeter instrument, cover wide range spanning four decades in from soft X-rays gamma-rays. After successful launch on 2016 February 17, spacecraft lost its function March 26, but commissioning phase for about month provided valuable...
ABSTRACT High-resolution spectroscopy in soft X-rays will open a new window to map multiphase gas galaxy clusters and probe physics of the intracluster medium (ICM), including chemical enrichment histories, circulation matter energy during large-scale structure evolution, stellar black hole feedback, halo virialization, mixing processes. An eV-level spectral resolution, large field view, effective area are essential separate cluster emissions from Galactic foreground efficiently outskirts....
Abstract We present an analysis of the first two XRISM/Resolve spectra well-known Seyfert-1.5 active galactic nucleus (AGN) in NGC 4151, obtained 2023 December. Our work focuses on nature narrow Fe K α emission line at 6.4 keV, strongest and most common X-ray observed AGN. The total is found to consist three components. Even narrowest component resolved with evident ,1 (6.404 keV) ,2 (6.391 contributions a 2:1 flux ratio, fully consistent neutral gas negligible bulk velocity. Subject...
Abstract We present an initial analysis of the X-Ray Imaging and Spectroscopy Mission (XRISM) first-light observation supernova remnant (SNR) N 132D in Large Magellanic Cloud. The Resolve microcalorimeter has obtained first high-resolution spectrum 1.6–10 keV band, which contains K-shell emission lines Si, S, Ar, Ca, Fe. find that Si S are relatively narrow, with a broadening represented by Gaussian-like velocity dispersion $\sigma _v \sim 450$ km s$^{-1}$. However, Fe He$\alpha$...
We describe a method for measuring the complex impedance of transition-edge-sensor (TES) calorimeters. Using this technique, we measured Mo/Au superconducting calorimeter. The data are in good agreement with our linear calorimeter model. From these measurements, obtained measurements unprecedented accuracy heat capacity and gradient resistance respect to temperature current TES throughout phase transition. probe internal state superconductor transition useful characterizing
We have recently shown that normal-metal/superconductor (N/S) bilayer TESs (superconducting Transition-Edge Sensors) exhibit weak-link behavior.1 Here we extend our understanding to include with added noise-mitigating normal-metal structures (N structures). find Au also behavior as evidenced by exponential temperature dependence of the critical current and Josephson-like oscillations applied magnetic field. explain results in terms an effect converse longitudinal proximity (LoPE)1, lateral...