Stephen Markham
Cornell University
8 Papers
25 Citations
Stephen Markham is an academic researcher from Cornell University. The author has contributed to research in topics: Cryomodule & Second sound. The author has an hindex of 4, co-authored 8 publications. Previous affiliations of Stephen Markham include California Institute of Technology.
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Papers
Radial profiles of the Phoebe ring: A vast debris disk around Saturn
TL;DR: In this article, an analytical model for the size-dependent secular dynamics of retrograde Phoebe ring grains was developed, and compared to the observations. But the model is not suitable for the case of small grains.
13
On the Mystery of using Helium's second Sound for Quench Detection of a Superconducting Cavity
Ralf Eichhorn,Stephen Markham +1 more
TL;DR: In this article, the authors present a model that might help explain the discrepancy between the velocity of the second sound wave and the location of the quench in a superconducting cavity.
8
On Quench Propagation, Quench Detection and Second Sound in SRF Cavities
Stephen Markham,Ralf Eichhorn +1 more
- 01 Dec 2015
TL;DR: In this article, the authors present a model based on numerical quench propagation simulations and analytic geometrical calculations that helps explain the discrepancy between the velocity of the second sound wave and the position of the quench.
6
Time Resolved Cryogenic Cooling Analysis of the Cornell Injector Cryomodule
Ralf Eichhorn,Adam Bartnik,Bruce Dunham,Mingqi Ge,Georg Hoffstaetter,Hyeri Lee,Matthias Liepe,Stephen Markham,Tim O'Connell,Peter Quigley,Daniel Sabol,James Sears,Eric Alden Smith,Vadim Veshcherevich +13 more
- 01 Jun 2016
Abstract: Managing parallel cryogenic flows has become a key challenge in designing efficient and smart cryo-modules for particle accelerators. In analysing the heating dynamics of the Cornell high current injector module a computational tool has been set-up allowing time resolved analysis and optimization. We describe the computational methods and data sets we have used, report the results and compare them to measured data from the module being in good agreement. Mitigation strategies developed on basis of this model have helped us in pushing the operational limitations.
4
Time resolved cryogenic cooling analysis of the Cornell Injector Cryomodule
Ralf Eichhorn,Stephen Markham,Eric Alden Smith,P. Quigley +3 more
- 18 Dec 2015
TL;DR: In this paper, a computational tool has been set-up allowing time resolved analysis and optimization of the high current injector module of the Cornell High Current Injector (HCI) for particle accelerators.
4