Dr. Simon R. Bandler Profile

Dr. Simon R. Bandler

Research Scientist at NASA Goddard Space Flight Ctr

Publications (21)

Proceedings Article | 13 December 2020 Presentation

Frequency domain multiplexing technology of transition-edge sensors for x-ray astronomy

Hiroki Akamatsu, Davide Vaccaro, Luciano Gottardi, Jan van der Kuur, Cor de Vries, Simon Bandler, Marcel Bruijn, James Chervenak, Matteo D'Andrea, Jian-Rong Gao, Jan-Willem den Herder, Ruud W. Hoogeveen, Mikko Kiviranta, Anton van der Linden, Brian Jackson, Antoine Miniussi, Kenichiro Nagayoshi, Kevin Ravensberg, Marcel Ridder, Kazuhiro Sakai, Stephen Smith, Emanuele Taralli, Sven Visser, Nicholas Wakeham, Martin de Wit

Proc. SPIE. 11444, Space Telescopes and Instrumentation 2020: Ultraviolet to Gamma Ray

KEYWORDS: Observatories, Resonators, Sensors, X-rays, Quantum efficiency, Multiplexing, Spectral resolution, X-ray astronomy, Sensor technology, Fused deposition modeling

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SPIE Journal Paper | 11 June 2019

Design of optical/IR blocking filters for the Lynx X-ray Microcalorimeter

Megan E. Eckart, Wonsik Yoon, Benjamin Zeiger, Simon R. Bandler, Dan McCammon

JATIS Vol. 5 Issue 02

KEYWORDS: Optical filters, X-rays, Aluminum, X-ray optics, Thin films, Silicon, Waveguides, Digital filtering, Optical design, X-ray telescopes

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SPIE Journal Paper | 31 May 2019

Lynx x-ray microcalorimeter

Simon Bandler, James Chervenak, Aaron Datesman, Archana Devasia, Michael DiPirro, Kazuhiro Sakai, Stephen Smith, Thomas Stevenson, Wonsik Yoon, Douglas Bennett, Benjamin Mates, Daniel Swetz, Joel Ullom, Kent Irwin, Megan Eckart, Enectali Figueroa-Feliciano, Dan McCammon, Kevin Ryu, Jeffrey Olson, Ben Zeiger

JATIS Vol. 5 Issue 02

KEYWORDS: X-rays, Sensors, Field effect transistors, Electronics, Microwave radiation, Staring arrays, Prototyping, Image resolution, Cryocoolers, Superconductors

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SPIE Journal Paper | 29 May 2019

Lynx X-Ray Observatory: an overview

Jessica Gaskin, Douglas Swartz, Alexey Vikhlinin, Feryal Özel, Karen E. Gelmis, Jonathan Arenberg, Simon Bandler, Mark Bautz, Marta Civitani, Alexandra Dominguez, Megan Eckart, Abraham Falcone, Enectali Figueroa-Feliciano, Mark Freeman, Hans Günther, Keith Havey, Ralf Heilmann, Kiranmayee Kilaru, Ralph Kraft, Kevin McCarley, Randall McEntaffer, Giovanni Pareschi, William Purcell, Paul Reid, Mark Schattenburg, Daniel Schwartz, Eric Schwartz, Harvey Tananbaum, Grant Tremblay, William Zhang, John Zuhone

JATIS Vol. 5 Issue 02

KEYWORDS: X-rays, Mirrors, Observatories, Galactic astronomy, Spatial resolution, Sensors, Space operations, X-ray imaging, Spectroscopy, Image resolution

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SPIE Journal Paper | 14 May 2019

Lynx x-ray microcalorimeter cryogenic system

Michael DiPirro, Simon Bandler, Xiaoyi Li, Jeffrey Olson, James Tuttle, Wonsik Yoon, Mark Zagarola

JATIS Vol. 5 Issue 02

KEYWORDS: Cryocoolers, Cryogenics, X-rays, Magnetism, Staring arrays, Sensors, Reliability, Space operations, Electronics, Mathematical modeling

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SPIE Journal Paper | 26 April 2019

Development of space-flight compatible room-temperature electronics for the Lynx x-ray microcalorimeter

Kazuhiro Sakai, Joseph Adams, Simon Bandler, Douglas Bennett, Kent Irwin, John A. Mates

JATIS Vol. 5 Issue 02

KEYWORDS: Field programmable gate arrays, Electronics, Field effect transistors, Digital signal processing, Microwave radiation, Signal processing, Multiplexers, Sensors, X-rays, Multiplexing

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SPIE Journal Paper | 9 April 2019

Magnetic calorimeter option for the Lynx x-ray microcalorimeter

Thomas Stevenson, Manuel Balvin, Simon Bandler, Archana Devasia, Peter Nagler, Kevin Ryu, Stephen Smith, Wonsik Yoon

JATIS Vol. 5 Issue 02

KEYWORDS: Sensors, X-rays, Inductance, Magnetic sensors, Niobium, Magnetism, Superconductors, Gold, Prototyping, Microwave radiation

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SPIE Journal Paper | 8 April 2019

Multiabsorber transition-edge sensors for x-ray astronomy

Stephen J. Smith, Joseph Adams, Simon Bandler, James Chervenak, Aaron Datesman, Megan Eckart, Fred Finkbeiner, Ruslan Hummatov, Richard Kelley, Caroline Kilbourne, Antoine Miniussi, Frederick Porter, John Sadleir, Kazuhiro Sakai, Nicholas Wakeham, Edward Wassell

JATIS Vol. 5 Issue 02

KEYWORDS: Sensors, X-rays, X-ray astronomy, Image resolution, Gold, Lithium, Phonons, Signal to noise ratio, Digital filtering, Resistance

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SPIE Journal Paper | 22 March 2019

Microwave SQUID multiplexing for the Lynx x-ray microcalorimeter

Douglas Bennett, John A. Mates, Simon Bandler, Daniel Becker, Joseph Fowler, Johnathon Gard, Gene Hilton, Kent Irwin, Kelsey Morgan, Carl Reintsema, Kazuhiro Sakai, Daniel Schmidt, Stephen Smith, Daniel Swetz, Joel Ullom, Leila Vale, Abigail Wessels

JATIS Vol. 5 Issue 02

KEYWORDS: Microwave radiation, Multiplexing, Resonators, Sensors, X-rays, Multiplexers, Modulation, Field effect transistors, Inductance, Time division multiplexing

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Proceedings Article | 10 July 2018 Presentation

Transition-edge sensor array development for the ATHENA x-ray itegral field unit (Conference Presentation)

Stephen Smith, Joesph Adams, Simon Bandler, James Chervenak, Megan Eckart, Fred Finkbeiner, Richard Kelley, Caroline Kilbourne, Antoine Miniussi, F. Scott Porter, John Sadleir, Kazuhiro Sakai, Nicholas Wakeham, Edward Wassell, Wonsik Yoon, Hiroki Akamatsu, Luciano Gottardi, Roland den Hartog, Brian Jackson, Jan van der Kuur

Proc. SPIE. 10699, Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray

KEYWORDS: Observatories, Telescopes, Sensors, Metals, X-rays, Transition metals, Multiplexing, Spectral resolution, Fused deposition modeling

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The X-ray integral field unit (X-IFU) proposed for ESA’s Athena X-ray observatory will consist of 3840 transition edge sensor (TES) microcalorimeters optimized for the energy range of 0.2 to 12 keV. The instrument will provide unprecedented spectral resolution of ~ 2.5 eV at energies of up to 7 keV and will accommodate photon fluxes of 10’s mcrab (1000’s cps). Over the past two years the baseline configuration has evolved from the original proposal. The current baseline consists of a uniform large pixel array (LPA) of 5” pixels, AC-biased within their superconducting-to-normal transition and read out using frequency domain multiplexing (FDM). The baseline pixel design is approximately a factor of two times slower than in the original concept. High count-rate accommodation, needed for bright point source observations, is now achieved by defocusing the telescope optic to spread the photons over a larger number of pixels. In this paper we report on Mo/Au TES designs that are being optimized to meet the baseline pixel parameters and performance goals. This includes detailed studies on the optimization of the thermal heat sink and the impact of different TES geometries (including TES size and normal metal feature geometries) on the DC-biased transition shape. We discuss how these geometric effects ultimately impact important performance metrics such as energy resolution, decay time, slew-rate and array scale uniformity. Our Mo/Au TESs have historically been designed and optimized for DC-biased operation, however, the primary readout technology uses an AC drive to bias the TES. Depending upon the drive frequency, the AC bias affects the TES transition shape in two ways. Firstly, due to losses from the bias current coupling to metallic components in close proximity to the TES and secondly introducing fine structure in the transition due to Josephson effects. We present latest pixel design optimizations targeted at mitigating these frequency dependent effects in order to achieve commensurate performance with that obtained in the DC case.

Proceedings Article | 6 July 2018 Paper

Super DIOS: future x-ray spectroscopic mission to search for dark baryons

T. Ohashi, Y. Ishisaki, Y. Ezoe, S. Yamada, R. Hayakawa, K. Nunomura, K. Sato, Y. Tawara, I. Mitsuishi, K. Ohtsuka, K. Mitsuda, N. Yamasaki, T. Kikuchi, T. Hayashi, H. Muramatsu, Y. Nakashima, N. Ota, K. Osato, Y. Ichinohe, M. Eckart, S. Bandler, R. Kelley, C. Kilbourne

Proc. SPIE. 10699, Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray

KEYWORDS: Cooling systems, Telescopes, Sensors, Spectroscopy, X-rays, Coating, Space telescopes, Spatial resolution, Microwave radiation, X-ray telescopes

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Proceedings Article | 6 July 2018 Paper

Testing the X-IFU calibration requirements: an example for quantum efficiency and energy resolution

Edoardo Cucchetti, François Pajot, Etienne Pointecouteau, Philippe Peille, Gabriele Betancourt-Martinez, Stephen Smith, Marco Barbera, Megan Eckart, Simon Bandler, Caroline Kilbourne, Massimo Cappi, Didier Barret

Proc. SPIE. 10699, Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray

KEYWORDS: Sensors, Calibration, Error analysis, X-rays, Quantum efficiency

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Proceedings Article | 6 July 2018 Paper

ATHENA X-ray Integral Field Unit on-board event processor: analysis of performance of two triggering algorithms

Beatriz Cobo, María Teresa Ceballos, Philippe Peille, Jean-Michel Mesnager, Joern Wilms, Thomas Dauser, Christian Kirsch, Frédéric Pinsard, Christophe Cara, Michel Gros, Laurent Ravera, Simon Bandler, Frederick Porter, Caroline Kilbourne, Kazuhiro Sakai

Proc. SPIE. 10699, Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray

KEYWORDS: Detection and tracking algorithms, Photons, X-rays, Reconstruction algorithms, Optimal filtering, Algorithm development, Beryllium

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Proceedings Article | 17 August 2016 Paper

The Athena X-ray Integral Field Unit (X-IFU)

Didier Barret, Thien Lam Trong, Jan-Willem den Herder, Luigi Piro, Xavier Barcons, Juhani Huovelin, Richard Kelley, J. Miguel Mas-Hesse, Kazuhisa Mitsuda, Stéphane Paltani, Gregor Rauw, Agata Rożanska, Joern Wilms, Marco Barbera, Enrico Bozzo, Maria Teresa Ceballos, Ivan Charles, Anne Decourchelle, Roland den Hartog, Jean-Marc Duval, Fabrizio Fiore, Flavio Gatti, Andrea Goldwurm, Brian Jackson, Peter Jonker, Caroline Kilbourne, Claudio Macculi, Mariano Mendez, Silvano Molendi, Piotr Orleanski, François Pajot, Etienne Pointecouteau, Frederick Porter, Gabriel Pratt, Damien Prêle, Laurent Ravera, Etienne Renotte, Joop Schaye, Keisuke Shinozaki, Luca Valenziano, Jacco Vink, Natalie Webb, Noriko Yamasaki, Françoise Delcelier-Douchin, Michel Le Du, Jean-Michel Mesnager, Alice Pradines, Graziella Branduardi-Raymont, Mauro Dadina, Alexis Finoguenov, Yasushi Fukazawa, Agnieszka Janiuk, Jon Miller, Yaël Nazé, Fabrizio Nicastro, Salvatore Sciortino, Jose Miguel Torrejon, Hervé Geoffray, Isabelle Hernandez, Laure Luno, Philippe Peille, Jérôme André, Christophe Daniel, Christophe Etcheverry, Emilie Gloaguen, Jérémie Hassin, Gilles Hervet, Irwin Maussang, Jérôme Moueza, Alexis Paillet, Bruno Vella, Gonzalo Campos Garrido, Jean-Charles Damery, Chantal Panem, Johan Panh, Simon Bandler, Jean-Marc Biffi, Kevin Boyce, Antoine Clénet, Michael DiPirro, Pierre Jamotton, Simone Lotti, Denis Schwander, Stephen Smith, Bert-Joost van Leeuwen, Henk van Weers, Thorsten Brand, Beatriz Cobo, Thomas Dauser, Jelle de Plaa, Edoardo Cucchetti

Proc. SPIE. 9905, Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray

KEYWORDS: Staring arrays, Signal to noise ratio, Electronics, Iron, Stars, Sensors, Calibration, X-rays, Spectral resolution, Galactic astronomy

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Proceedings Article | 26 July 2016 Paper

The impact of crosstalk in the X-IFU instrument on Athena science cases

R. den Hartog, P. Peille, T. Dauser, B. Jackson, S. Bandler, D. Barret, T. Brand, J.-W. den Herder, M. Kiviranta, J. van der Kuur, S. Smith, J. Wilms

Proc. SPIE. 9905, Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray

KEYWORDS: Sensors, X-rays, Silicon, Manufacturing, Magnetism, Detector arrays, Bridges, Magnetic sensors, X-ray detectors, Signal detection

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Proceedings Article | 19 July 2016 Paper

TESSIM: a simulator for the Athena-X-IFU

J. Wilms, S. Smith, P. Peille, M. T. Ceballos, B. Cobo, T. Dauser, T. Brand, R. den Hartog, S. Bandler, J. de Plaa, J.-W. den Herder

Proc. SPIE. 9905, Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray

KEYWORDS: Astronomy, Sensors, Photons, X-rays, Resistance, Monte Carlo methods, Spatial resolution, X-ray detectors, Cerium, Device simulation

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Proceedings Article | 19 July 2016 Paper

Development of x-ray microcalorimeter imaging spectrometers for the X-ray Surveyor mission concept

Simon Bandler, Joseph Adams, James Chervenak, Aaron Datesman, Megan Eckart, Fred Finkbeiner, Richard Kelley, Caroline Kilbourne, Gabriele Betancourt-Martinez, Antoine Miniussi, Frederick Porter, John Sadleir, Kazuhiro Sakai, Stephen Smith, Thomas Stevenson, Nicholas Wakeham, Edward Wassell, Wonsik Yoon, Dan Becker, Douglas Bennett, William Doriese, Joseph Fowler, Johnathan Gard, Gene Hilton, Benjamin Mates, Kelsey Morgan, Carl Reintsema, Daniel Swetz, Joel Ullom, Saptarshi Chaudhuri, Kent Irwin, Sang-Jun Lee, Alexey Vikhlinin

Proc. SPIE. 9905, Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray

KEYWORDS: Electronics, Sensors, Matrices, X-rays, Silver, Superconductors, Spectral resolution, Field effect transistors, Computer aided design, Tantalum

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Proceedings Article | 25 September 2014 Paper

The transition-edge EBIT microcalorimeter spectrometer

Gabriele Betancourt-Martinez, Joseph Adams, Simon Bandler, Peter Beiersdorfer, Gregory Brown, James Chervenak, Randy Doriese, Megan Eckart, Kent Irwin, Richard Kelley, Caroline Kilbourne, Maurice Leutenegger, F. Porter, Carl Reintsema, Stephen Smith, Joel Ullom

Proc. SPIE. 9144, Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray

KEYWORDS: Electron beams, Sensors, Spectroscopy, X-rays, Ions, Superconductors, Image resolution, Multiplexing, Transmission electron microscopy, Time division multiplexing

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Proceedings Article | 26 September 2013 Paper

Designing the x-ray microcalorimeter spectrometer for optimal science return

Andrew Ptak, Simon Bandler, Jay Bookbinder, Richard Kelley, Robert Petre, Randall Smith, Stephen Smith

Proc. SPIE. 8859, UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XVIII

KEYWORDS: Observatories, Point spread functions, Sensors, Spectroscopy, X-rays, Image resolution, Spectral resolution, X-ray imaging, Galactic astronomy, X-ray astronomy

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Proceedings Article | 27 September 2012 Paper

The Advanced X-ray Spectroscopic Imaging Observatory (AXSIO)

Jay Bookbinder, Randall Smith, Simon Bandler, Michael Garcia, Ann Hornschemeier, Robert Petre, Andrew Ptak

Proc. SPIE. 8443, Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray

KEYWORDS: Observatories, Mirrors, Sensors, Spectroscopy, X-rays, Imaging spectroscopy, Space operations, X-ray imaging, X-ray astronomy, Spectroscopes

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Proceedings Article | 17 September 2012 Paper

Update on the Micro-X Sounding Rocket payload

E. Figueroa-Feliciano, J. Adams, R. Baker, S. Bandler, D. Dewey, W. Doriese, M. Eckart, R. Hamersma, G. Hilton, U. Hwang, K. Irwin, R. Kelley, C. Kilbourne, S. Kissel, S. Leman, D. McCammon, P. H. Oakley, T. Okajima, R. O'Neal, R. Petre, F. Porter, C. Reintsema, J. Rutherford, T. Saab, P. Serlemitsos, Y. Soong, S. Trowbridge, P. Wikus

Proc. SPIE. 8443, Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray

KEYWORDS: Signal to noise ratio, Mirrors, Rockets, Electronics, Data modeling, Sensors, X-rays, Silicon, Detector arrays, Plasma

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Showing 5 of 21 publications

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