keywords
- low temperature detectors, x-ray spectroscopy, transition edge sensors, superconducting detectors, superconducting thin films
- Contact Info
Morgan, Kelsey Marie Research Associate
Positions
- Research Associate, Physics
Research Areas
Research
Publications
selected publications
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conference proceeding
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A Highly Linear Calibration Metric for TES X-ray Microcalorimeters.
Journal of Low Temperature Physics.
249-257.
2017
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Mapping TES Temperature Sensitivity and Current Sensitivity as a Function of Temperature, Current, and Magnetic Field with IV Curve and Complex Admittance Measurements.
Journal of Low Temperature Physics.
321-327.
2017
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Microstructure Analysis of Bismuth Absorbers for Transition-Edge Sensor X-ray Microcalorimeters.
Journal of Low Temperature Physics.
225-230.
2017
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Transition-edge sensor pixel parameter design of the microcalorimeter array for the X-ray Integral Field Unit on Athena.
Proceedings of SPIE.
2016
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Technique for Recovering Pile-Up Events from Microcalorimeter Data.
Journal of Low Temperature Physics.
431-435.
2015
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The DXL and STORM Sounding Rocket Mission.
Proceedings of SPIE.
2013
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Charge Exchange X-Ray Emission: Astrophysical Observations And Potential Diagnostics.
AIP Conference Proceedings.
49-54.
2012
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A Highly Linear Calibration Metric for TES X-ray Microcalorimeters.
Journal of Low Temperature Physics.
249-257.
2017
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journal article
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Absolute energies and emission line shapes of the L x-ray transitions of lanthanide metals.
Metrologia: international journal of pure and applied metrology.
2021
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Broadband high-energy resolution hard x-ray spectroscopy using transition edge sensors at SPring-8.
Review of Scientific Instruments.
2021
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Development of a transition-edge sensor bilayer process providing new modalities for critical temperature control.
Superconductor Science and Technology.
2020
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Valence-to-core X-ray emission spectroscopy of titanium compounds using energy dispersive detectors.
X-ray Spectrometry.
9-20.
2020
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X-ray Spectroscopy of Muonic Atoms Isolated in Vacuum with Transition Edge Sensors.
Journal of Low Temperature Physics.
445-451.
2020
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Hyperspectral X-ray Imaging with TES Detectors for Nanoscale Chemical Speciation Mapping.
Journal of Low Temperature Physics.
437-444.
2020
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Integration of a TES-based X-ray spectrometer in a kaonic atom experiment.
Journal of Low Temperature Physics.
1018-1026.
2020
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Resonant Soft X-Ray Scattering from Stripe-Ordered La2-xBaxCuO4 Detected by a Transition-Edge Sensor Array Detector.
Physical Review Applied.
2020
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Count Rate Optimizations for TES Detectors at a Femtosecond X-ray Laser.
Journal of Low Temperature Physics.
1038-1045.
2020
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A transition-edge sensor-based x-ray spectrometer for the study of highly charged ions at the National Institute of Standards and Technology electron beam ion trap.
Review of Scientific Instruments.
2019
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Expanding the Capability of Microwave Multiplexed Readout for Fast Signals in Microcalorimeters.
Journal of Low Temperature Physics.
164-170.
2019
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Soft X-ray spectroscopy with transition-edge sensors at Stanford Synchrotron Radiation Lightsource beamline 10-1.
Review of Scientific Instruments.
2019
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A High Spectral Resolution Study of the Soft X-Ray Background with the X-Ray Quantum Calorimeter.
The Astrophysical Journal: an international review of astronomy and astronomical physics.
2019
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Demonstration of Athena X-IFU Compatible 40-Row Time-Division-Multiplexed Readout.
IEEE Transactions on Applied Superconductivity.
2019
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Energy Calibration of High-Resolution X-Ray TES Microcalorimeters With 3 eV Optical Photons.
IEEE Transactions on Applied Superconductivity.
2019
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High-Throughput, DC-Parametric Evaluation of Flux-Activated-Switch-Based TDM and CDM SQUID Multiplexers.
IEEE Transactions on Applied Superconductivity.
2019
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Optimization of Time- and Code-Division-Multiplexed Readout for Athena X-IFU.
IEEE Transactions on Applied Superconductivity.
2019
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Use of Transition Models to Design High Performance TESs for the LCLS-II Soft X-Ray Spectrometer.
IEEE Transactions on Applied Superconductivity.
2019
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Controlling the thermal conductance of silicon nitride membranes at 100 mK temperatures with patterned metal features.
Applied Physics Letters.
2019
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Configurable error correction of code-division multiplexed TES detectors with a cryotron switch.
Applied Physics Letters.
2019
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Microwave SQUID multiplexing for the Lynx x-ray microcalorimeter.
Journal of Astronomical Telescopes, Instruments, and Systems.
2019
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TES X-ray Spectrometer at SLAC LCLS-II.
Journal of Low Temperature Physics.
1287-1297.
2018
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L-edge spectroscopy of dilute, radiation-sensitive systems using a transition-edge-sensor array.
Journal of Chemical Physics.
2017
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Eliminating the non-Gaussian spectral response of X-ray absorbers for transition-edge sensors.
Applied Physics Letters.
2017
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A reassessment of absolute energies of the x-ray L lines of lanthanide metals.
Metrologia: international journal of pure and applied metrology.
494-511.
2017
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When "Optimal Filtering" Isn't.
IEEE Transactions on Applied Superconductivity.
2017
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Dependence of transition width on current and critical current in transition-edge sensors.
Applied Physics Letters.
2017
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A practical superconducting-microcalorimeter X-ray spectrometer for beamline and laboratory science.
Review of Scientific Instruments.
2017
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Mapping of the resistance of a superconducting transition edge sensor as a function of temperature, current, and applied magnetic field.
Journal of Applied Physics.
2017
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A thin-film cryotron suitable for use as an ultra-low-temperature switch.
Applied Physics Letters.
2016
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Code-division-multiplexed readout of large arrays of TES microcalorimeters.
Applied Physics Letters.
2016
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Fabrication of Superconducting Mo/Cu Bilayers Using Ion-Beam-Assisted e-Beam Evaporation.
Journal of Low Temperature Physics.
647-653.
2016
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Developments in Time-Division Multiplexing of X-ray Transition-Edge Sensors (vol 184, pg 389, 2016).
Journal of Low Temperature Physics.
396-396.
2016
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SEARCHING FOR keV STERILE NEUTRINO DARK MATTER WITH X-RAY MICROCALORIMETER SOUNDING ROCKETS.
The Astrophysical Journal: an international review of astronomy and astronomical physics.
2015
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Ion-Beam-Assisted Deposition of Mo Thin Films for TES Applications.
IEEE Transactions on Applied Superconductivity.
2015
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The origin of the local 1/4-keV X-ray flux in both charge exchange and a hot bubble.
Nature.
171-+.
2014
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PRESSURE EQUILIBRIUM BETWEEN THE LOCAL INTERSTELLAR CLOUDS AND THE LOCAL HOT BUBBLE.
Letters of the Astrophysical Journal.
2014
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Large Area Transition Edge Sensor X-ray Microcalorimeters for Diffuse X-ray Background Studies.
Journal of Low Temperature Physics.
331-336.
2014
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Narrow Line X-Ray Calibration Source for High Resolution Microcalorimeters.
Journal of Low Temperature Physics.
566-570.
2014
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X-ray-emission measurements following charge exchange between C6+ and H-2.
Physical Review A: Atomic, Molecular and Optical Physics.
2014
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X-ray emission measurements following charge exchange between C6+ and He.
Physical Review A.
2013
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Absolute energies and emission line shapes of the L x-ray transitions of lanthanide metals.
Metrologia: international journal of pure and applied metrology.
2021
International Activities
global connections related to teaching and scholarly work (in recent years)
- Japan Country