Results 81 to 90 of about 314,600 (315)

Emittance, surface structure, and electron emission

Physical Review Special Topics. Accelerators and Beams, 2014
The emittance of high brightness electron sources, particularly field emitters and photocathodes but also thermionic sources, is increased by surface roughness on the emitter.
Kevin L. Jensen, Donald A. Shiffler, John J. Petillo, Zhigang Pan, John W. Luginsland   +4 more
doaj   +1 more source

The So-Called Positive Photo-Electric Emission (Inverse Effect) and the Reality of the Sub-Electron [PDF]

, 2004
Edward J. Lorenz
openalex   +1 more source

Development and Application of Ultrafast Transmission Electron Microscope Based on Schottky Field Emission [PDF]

, 2020
Jianqi Li, Huaixin Yang, Huanfang Tian, Zi‐An Li, Zhifeng Li, Chunhui Zhu, Peng Xu, Dingguo Zheng, Jie Li   +8 more
openalex   +1 more source

Raman Spectroscopic Identification of Oxide Phases in a Corroded MgO–Steel Composite Anode Used in Aluminum Molten Salt Electrolysis

Advanced Engineering Materials, EarlyView.
Micro‐Raman spectroscopy is applied to characterize corrosion products in a recycled‐based MgO–316L steel composite anode after molten salt electrolysis. A depth‐dependent Fe–O/Fe–Al–O layer sequence of magnetite, hercynite, and an Al‐doped magnetite transition zone is identified.
Felix Drechsler, Serhii Yaroshevskyi, Alexander Adamczyk, Mahnaz Mehdizadehlima, Julia Richter, Cameliu Himcinschi, David Rafaja, Alexandros Charitos, Christos G. Aneziris, Jens Kortus   +9 more
wiley   +1 more source

Nanometric probing with a femtosecond, intra-cavity standing wave

Nanophotonics
Optical standing waves are intrinsically nanometric, spatially fixed interference-field patterns. At a commensurate scale, metallic nanotips serve as coherent, atomic-sized electron sources.
Heldt Tobias, Oelmann Jan-Hendrik, Guth Lennart, Lackmann Nick, Matt Lukas, Pfeifer Thomas, Crespo López-Urrutia José R.   +6 more
doaj   +1 more source

Indirect measurement of field emission electron current from the main superconducting cavities of compact ERL at KEK

EPJ Web of Conferences, 2017
The field emission electron currents from the main superconducting cavities (Cavities #3 and #4) of compact ERL at KEK, Japan, were estimated indirectly from photon dose rates measured around the cavities and on the roof of the compact ERL room.
Matsumura Hiroshi, Nakamura Hajime, Toyoda Akihiro, Hozumi Ken-ichi, Sakai Hiroshi, Enami Kazuhiro, Furuya Takaaki, Shinoe Kenji, Umemori Kensei, Haga Kaiichi, Sakanaka Shogo, Sawamura Masaru, Cenni Enrico   +12 more
doaj   +1 more source

Suppression of Secondary Electron Emission from Nickel Surface by Graphene Composites Based on First-Principles Method. [PDF]

Nanomaterials (Basel), 2023
Peng M, Nan C, Wang D, Cao M, Zhang L, Liu L, Liu C, Fang D, Zhang Y, Zhai Y, Li Y.   +10 more
europepmc   +1 more source

Electrochemical Growth of Vertically Standing Ni Nanorod Arrays on Si Substrate and the Low-Dimensional Effect on Their Enhanced Cold Field Electron Emission Properties [PDF]

, 2012
Arghya Narayan Banerjee, Sang Woo Joo
openalex   +1 more source

Pyramidal Structures on Yttria‐Stabilized Zirconia after High Temperature Exposure at 1500°C: New Features on an Old Material

Advanced Engineering Materials, EarlyView.
New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold, Dylan Jennings, Robert Vaßen   +2 more
wiley   +1 more source

Reducing virtual source size by using facetless electron source for high brightness

AIP Advances, 2019
Brightness of an electron source is key for the high spatial resolution of electron microscopy and analysis. A small source size is essential for high brightness, and it has been achieved by using small crystal facets; however, the emission current is ...
Soichiro Matsunaga, Yasunari Sohda
doaj   +1 more source