Zobrazeno 1 - 10
of 57
pro vyhledávání: '"W. Andreas Schroeder"'
Publikováno v:
AIP Advances, Vol 12, Iss 10, Pp 105129-105129-9 (2022)
Single-photon photoemission of electrons for incident photon energies below the surface work function is reported for a single-crystal Cu(111) photocathode. Spectral characterization of the quantum efficiency and mean transverse energy of the emitted
Externí odkaz:
https://doaj.org/article/40579c583430460ca6671b1c0447d087
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 18, Iss 7, p 073401 (2015)
A density function theory based analysis of photoemission from hexagonal close packed (hcp) metals is presented and the calculated values of the rms transverse momentum (Δp_{T}) are in good agreement with the available experimental data on Be [Phys.
Externí odkaz:
https://doaj.org/article/0ec771fc24fb4d9fb37b3d3f8b5a3c3f
Autor:
W Andreas Schroeder, Gowri Adhikari
Publikováno v:
New Journal of Physics, Vol 21, Iss 3, p 033040 (2019)
A one-step photoemission analysis is developed, using the exact one-dimensional quantum solution for transmission over and through a triangular barrier presented by Forbes and Deane (2011 Proc. R. Soc. A 467 2927), to evaluate the emission properties
Externí odkaz:
https://doaj.org/article/e23a6d0f8a3b4c8ebef02dedbeabf4fb
The electron emission properties of a single-crystal nitrogen-doped diamond(001) photocathode inserted in a 10kV DC photoelectron gun are determined using a tunable (235-410nm) ultraviolet laser radiation source for photoemission from both the back n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::588c8fad2137f2ef3e11c8eca18a1502
Autor:
Evan J. Reed, Bruce Dunham, W. Andreas Schroeder, Evan R. Antoniuk, Peter Schindler, Theodore Vecchione, Piero Pianetta
Publikováno v:
Advanced materials (Deerfield Beach, Fla.). 33(44)
The high brightness, low emittance electron beams achieved in modern X-ray free-electron lasers (XFELs) have enabled powerful X-ray imaging tools, allowing molecular systems to be imaged at picosecond time scales and sub-nanometer length scales. One
Autor:
J. Kevin Nangoi, Jared Maxson, Gowri Adhikari, W. Andreas Schroeder, Siddharth Karkare, Tomas Arias, Howard A. Padmore
Publikováno v:
Physical review letters, vol 125, iss 5
Achieving a low mean transverse energy or temperature of electrons emitted from the photocathode-based electron sources is critical to the development of next-generation and compact x-ray free electron lasers and ultrafast electron diffraction, spect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3bfd633b34a802166fe8c741001b571a
Autor:
Theodore Vecchione, Peter Schindler, Evan J. Reed, Bruce Dunham, W. Andreas Schroeder, Piero Pianetta, Evan R. Antoniuk
Publikováno v:
Advanced Materials. 33:2170348
Autor:
Constantine M. Megaridis, Ranjan Ganguly, Tamal Roy, W. Andreas Schroeder, Uddalok Sen, Louis A. Angeloni
Publikováno v:
International Journal of Heat and Mass Transfer. 154:119658
Droplet impact on superheated smooth solids has attracted enormous attention since Leidenfrost reported the eponymous phenomenon over 250 years ago. The related literature has almost exclusively focused on pure liquids, which maintain their volume in
Autor:
W Andreas Schroeder, Ji Zhao
Publikováno v:
Plasma Physics and Controlled Fusion. 62:045009
Autor:
Kiran Kumar Kovi, Linda Spentzouris, Chunguang Jing, Gongxiaohui Chen, Sergey V. Baryshev, Gowri Adhikari, Sergey Antipov, W. Andreas Schroeder
Nitrogen incorporated ultrananocrystalline diamond ((N)UNCD) could be an enabling material platform for photocathode applications due to its high emissivity. While the quantum efficiency (QE) of UNCD was reported by many groups, no experimental measu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0d1a161f2db274704cd195710f389dc6