Zobrazeno 1 - 10
of 77
pro vyhledávání: '"John E. Sadleir"'
Autor:
Malcolm Durkin, Caroline A. Kilbourne, E. V. Denison, Daniel S. Swetz, Fred M. Finkbeiner, James A. Chervenak, Richard L. Kelley, Stephen J. Smith, Ruslan Hummatov, Joseph W. Fowler, Kent D. Irwin, John E. Sadleir, Kazuhiro Sakai, Carl D. Reintsema, Maurice A. Leutenegger, Gene C. Hilton, Simon R. Bandler, Frederick S. Porter, Joseph S. Adams, M. C. Witthoeft, Leila R. Vale, Joel N. Ullom, Edward J. Wassell, Nicholas A. Wakeham, Sophie Beaumont, Antoine R. Miniussi, William B. Doriese
Publikováno v:
IEEE Transactions on Applied Superconductivity. 31:1-6
Future X-ray astrophysics experiments require multiplexed readout of high fill-factor, kilo-pixel arrays of transition-edge sensors (TESs), with very high spectral resolution over a broad range of energies. In this paper we report on a prototype kilo
Autor:
R. L. Kelley, Megan E. Eckart, Stephen J. Smith, Joseph S. Adams, Aaron M. Datesman, John E. Sadleir, F. M. Finkbeiner, Edward J. Wassell, D. McCammon, N. A. Wakeham, Simon R. Bandler, Caroline A. Kilbourne, A. R. Miniussi, Felix Jaeckel, Kazuhiro Sakai, F. S. Porter, Jay Chervenak, Kevin Ryu, S. Beaumont
Publikováno v:
Journal of Low Temperature Physics. 199:949-954
In this paper, we report on X-ray transition-edge sensor (TES) microcalorimeters optimized to have the best possible energy resolution for a limited energy range for the incoming X-rays, such as an energy resolution of 0.3 eV full width half maximum
Autor:
Simon R. Bandler, Jay Chervenak, F. S. Porter, A. R. Miniussi, R. L. Kelley, Kazuhiro Sakai, Stephen J. Smith, Joseph S. Adams, Edward J. Wassell, F. M. Finkbeiner, John E. Sadleir, Caroline A. Kilbourne, R. Hummatov, S. Beaumont, N. A. Wakeham
Publikováno v:
Journal of Low Temperature Physics. 199:704-715
The energy range of transition-edge sensor (TES) X-ray microcalorimeters with a multiplexed readout depends upon the width and shape of the TES superconducting transition, and also on the dynamic range of the readout. In many detector systems, the mu
Autor:
Stephen J. Smith, S. Beaumont, Richard L. Kelley, Jong Y. Ha, N. A. Wakeham, Edward J. Wassell, Kazuhiro Sakai, James A. Chervenak, Simon R. Bandler, Caroline A. Kilbourne, John E. Sadleir, Fred M. Finkbeiner, Meng P. Chang, A. R. Miniussi, Frederick S. Porter, Joseph S. Adams, R. Hummatov
Publikováno v:
Journal of Low Temperature Physics. 199:45-55
The X-ray Integral Field Unit (X-IFU) instrument on the Athena mission will be positioned at the Lagrangian point L2 and be subject to cosmic rays generated by astrophysics sources, primarily relativistic protons. Previous simulations have shown that
Autor:
Stephen J. Smith, Simon R. Bandler, R. Hummatov, Kazuhiro Sakai, Kevin Ryu, N. A. Wakeham, F. M. Finkbeiner, Caroline A. Kilbourne, Joseph S. Adams, John E. Sadleir, S. Beaumont, Jay Chervenak, Aaron M. Datesman, A. R. Miniussi, Edward J. Wassell, F. S. Porter, R. L. Kelly, M. C. Witthoeft
Publikováno v:
Journal of Low Temperature Physics. 199:330-338
We report on the development of multi-absorber transition edge sensors (TESs), referred to as hydras. A hydra consists of multiple x-ray absorbers each with a different thermal conductance to a TES. Position information is encoded in the pulse shape.
Autor:
Jay Chervenak, F. M. Finkbeiner, Stephen J. Smith, S. Beaumont, Simon R. Bandler, Megan E. Eckart, Joseph S. Adams, F. S. Porter, A. R. Miniussi, Caroline A. Kilbourne, Kazuhiro Sakai, Meng-Ping Chang, Edward J. Wassell, R. L. Kelley, N. A. Wakeham, Jong Yoon Ha, R. Hummatov, Aaron M. Datesman, John E. Sadleir
Publikováno v:
Journal of Low Temperature Physics. 200:192-199
The measured noise in Mo/Au transition-edge sensor (TES) microcalorimeters produced at NASA has recently been shown to be well described by a two-body electro-thermal model with a finite thermal conductance between the X-ray absorber and the TES. In
Autor:
Megan E. Eckart, Kelsey M. Morgan, Dallas Wulf, Mackenzie Meyer, Jay Chervenak, Felix Jaeckel, Samuel Smith, M. McPheron, C. V. Ambarish, Caroline A. Kilbourne, Edward J. Wassell, Daniel Schmidt, Kazuhiro Sakai, Antoine R. Miniussi, Nicholas A. Wakeham, R. Gruenke, Audrey J. Ewin, Aaron M. Datesman, Joel N. Ullom, N. Christensen, K. L. Nelms, Simon R. Bandler, Yu Zhou, Shuo Zhang, Arunava Roy, D. McCammon, John E. Sadleir, F. M. Finkbeiner, Wonsik Yoon, Joseph S. Adams, F. S. Porter, R. L. Kelley, Daniel S. Swetz, L. Hu
Publikováno v:
IEEE Transactions on Applied Superconductivity. 29:1-4
With the improving energy resolution of transitionedge sensor (TES) based microcalorimeters, performance verification and calibration of these detectors has become increasingly challenging, especially in the energy range below 1 keV where fluorescent
Autor:
Maurice A. Leutenegger, Stephen J. Smith, Caroline A. Kilbourne, Ruslan Hummatov, Richard L. Kelley, F. Scott Porter, Samuel J. Moseley, Joseph S. Adams, Simon R. Bandler, Nicholas A. Wakeham, Sophie Beaumont, Antoine R. Miniussi, John E. Sadleir, Kazuhiro Sakai, Edward J. Wassell, Megan E. Eckart, Fred M. Finkbeiner, Aaron M. Datesman, James A. Chervenak
Publikováno v:
IEEE Transactions on Applied Superconductivity. 29:1-5
Microcalorimeters have the potential to provide line shapes well described by a single Gaussian broadening term of few-eV width. This attribute makes the detectors especially well suited for x-ray astrophysics observations; however, low-level non-Gau
Publikováno v:
Journal of Astronomical Telescopes, Instruments, and Systems. 7
The Origins Space Telescope is one of four flagship missions under study for the 2020 Astrophysics Decadal Survey. With a 5.9 m cold (4.5 K) telescope deployed from space, Origins promises unprecedented sensitivity in the near-, mid-, and far-infrare
Autor:
Marcel P. Bruijn, Stephen J. Smith, M. Ridder, P. Khosropanah, A. R. Miniussi, J. van der Kuur, J. R. Gao, Jay Chervenak, Luciano Gottardi, Brian Jackson, N. Wakeham, R. den Hartog, H. Akamatsu, A. G. Kozorezov, Kazuhiro Sakai, K. Nagayoshi, John E. Sadleir, Simon R. Bandler
Publikováno v:
Journal of Low Temperature Physics, 193(3-4)
Frequency-division multiplexing is the baseline read-out system for large arrays of superconducting transition-edge sensors (TES’s) under development for the X-ray and infrared instruments like X-IFU (Athena) and SAFARI, respectively. In this multi