Bruce Dunham
Cornell University
93 Papers
778 Citations
Bruce Dunham is an academic researcher from Cornell University. The author has contributed to research in topics: Thermal emittance & Photocathode. The author has an hindex of 26, co-authored 92 publications. Previous affiliations of Bruce Dunham include General Electric & Thomas Jefferson National Accelerator Facility.
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Papers
Cathode R&D for future light sources
David H. Dowell,Ivan Bazarov,Bruce Dunham,Katherine Harkay,Carlos Hernandez-Garcia,R. Legg,Howard A. Padmore,Triveni Rao,John Smedley,Weishi Wan +9 more
TL;DR: In this paper, the requirements and current status of cathodes for accelerator applications are reviewed and a research and development plan for advancing cathode technology is proposed, and the thermal emittance is derived and formulas used to compare the various cathode materials.
CatSim: a new computer assisted tomography simulation environment
Bruno De Man,Samit Kumar Basu,Naveen Chandra,Bruce Dunham,Peter Michael Edic,Maria Iatrou,Scott M. Mcolash,Paavana Sainath,Charlie Shaughnessy,Brendon D. Tower,Eugene Clifford Williams +10 more
- 08 Mar 2007
TL;DR: CatSim as discussed by the authors is a simulation environment for X-ray computed tomography, which allows simulating complex analytic phantoms, such as the FORBILD PHANTOM, including boxes, ellipsoids, elliptical cylinders, cones, and cut planes.
168
Record high-average current from a high-brightness photoinjector
Bruce Dunham,John Barley,Adam Bartnik,Ivan Bazarov,Luca Cultrera,John Dobbins,Georg Hoffstaetter,Brent Johnson,R. Kaplan,Siddharth Karkare,Vaclav Kostroun,Yulin Li,Matthias Liepe,Xianghong Liu,Florian Loehl,Florian Loehl,Jared Maxson,Peter Quigley,J. Reilly,D. H. Rice,Daniel Sabol,Eric Alden Smith,Karl Smolenski,Maury Tigner,Vadim Vesherevich,D. Widger,Zhi Zhao +26 more
TL;DR: In this paper, a high-power injector using a DC photoemission gun followed by a superconducting accelerating module is presented, achieving state-of-the-art performance with beam energies of 4-5 MeV.
161
Ultrabright and ultrafast III-V semiconductor photocathodes.
Siddharth Karkare,Laurent Boulet,Luca Cultrera,Bruce Dunham,Xianghong Liu,William J. Schaff,Ivan Bazarov +6 more
TL;DR: Using this modeling, a layered GaAs structure is designed to reduce simultaneously the transverse energy and response time of the emitted electrons, and this structure, grown by molecular beam epitaxy and activated to negative electron affinity, is characterized.
95
Demonstration of low emittance in the Cornell energy recovery linac injector prototype
Colwyn Gulliford,Adam Bartnik,Ivan Bazarov,Luca Cultrera,John Dobbins,Bruce Dunham,Francisco Gonzalez,Siddharth Karkare,Hyeri Lee,Heng Li,Yulin Li,Xianghong Liu,Jared Maxson,Christian Nguyen,Karl Smolenski,Zhi Zhao +15 more
TL;DR: In this article, a detailed study of the six-dimensional phase space of the electron beam produced by the Cornell Energy Recovery Linac Photoinjector, a high-brightness, high repetition rate (1.3 GHz) DC photoemission source designed to drive a hard x-ray energy recovery linac (ERL).
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