a cathode that undergoes or is used for photoemission
photocathode in American English
(ˌfoʊtoʊˈkæθˌoʊd)
noun
a cathode that emits electrons when activated by radiation, as light
photocathode in American English
(ˌfoutouˈkæθoud)
noun
a cathode, typically of a cesium or sodium compound, having the property of emitting electrons when activated by light or otherradiation
Word origin
[1925–30; photo- + cathode]This word is first recorded in the period 1925–30. Other words that entered Englishat around the same time include: chain reaction, dropout, gimmick, reflex camera, turnaroundphoto- is a combining form meaning “light” (photobiology); also used to represent “photographic” or “photograph” in the formation of compoundwords. Other words that use the affix photo- include: photochronograph, photocoagulation, photogravure, photopathy, photosensitivity
Examples of 'photocathode' in a sentence
photocathode
Nitrogen and oxygen flow was required in the photoanode and photocathode, respectively.
Ogura Yuta, Yoshiba Mao, Izumi Yasuo 2015, 'Recyclable PhotoFuel Cell for Use of Acidic Water as a Medium', Oil & Gas Science and Technologyhttp://dx.doi.org/10.2516/ogst/2015031. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
We describe the recipe for photocathode deposition, and will detail the parameters of the run.
Luca Cultrera, Jared Maxson, Ivan Bazarov, Sergey Belomestnykh, John Dobbins, BruceDunham, Siddharth Karkare, Roger Kaplan, Vaclav Kostroun, Yulin Li, Xianghong Liu,Florian Löhl, Karl Smolenski, Zhi Zhao, David Rice, Peter Quigley, Maury Tigner, VadimVeshcherevich, Kenneth Finkelstein, Darren Dale, Benjamin Pichler 2011, 'Photocathode behavior during high current running in the Cornell energy recovery linacphotoinjector', Physical Review Special Topics. Accelerators and Beamshttp://doi.org/10.1103/PhysRevSTAB.14.120101. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Photon detector was developed on the basis of large-size paraboloid mirror and photomultiplier tube with cooled photocathode.
V.A. Khryachkov, B.V. Zhuravlev, V.A. Talalaev 2016, 'Photometry of ionizing radiations', Nuclear Energy and Technologyhttp://www.sciencedirect.com/science/article/pii/S2452303816300048. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Less-than-20-fs electron bunches were generated by a photocathode-based linear accelerator (linac) and a magnetic bunch compressor.
I. Nozawa, K. Kan, J. Yang, A. Ogata, T. Kondoh, M. Gohdo, K. Norizawa, H. Kobayashi,H. Shibata, S. Gonda, Y. Yoshida 2014, 'Measurement of <20 fs bunch length using coherent transition radiation', Physical Review Special Topics. Accelerators and Beamshttp://doi.org/10.1103/PhysRevSTAB.17.072803. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The initial particle distributions were generated from measured transverse and temporal laser beam profiles at the photocathode.
Ivan V. Bazarov, Bruce M. Dunham, Colwyn Gulliford, Yulin Li, Xianghong Liu, CharlesK. Sinclair, Ken Soong, Fay Hannon 2008, 'Benchmarking of 3D space charge codes using direct phase space measurements from photoemissionhigh voltage dc gun', Physical Review Special Topics. Accelerators and Beamshttp://doi.org/10.1103/PhysRevSTAB.11.100703. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
We present the results of our investigation of lead as a suitable photocathode material for superconducting rf injectors.
J. Smedley, T. Rao, J. Sekutowicz 2008, 'Lead photocathodes', Physical Review Special Topics. Accelerators and Beamshttp://doi.org/10.1103/PhysRevSTAB.11.013502. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The composite electrode was fully characterised and shown to be an efficient and stable photocathode for water splitting.
Yatin J. Mange, Soundarrajan Chandrasekaran, Nathan Hollingsworth, Nicolas H. Voelcker,Ivan P. Parkin, Thomas Nann, Thomas J. Macdonald 2017, '{Ni4O4} Cluster Complex to Enhance the Reductive Photocurrent Response on SiliconNanowire Photocathodes', Nanomaterialshttp://www.mdpi.com/2079-4991/7/2/33. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
We have developed a novel photocathode-based x-ray source, created by depositing a thin film of magnesium on an electron multiplier.
Avilash Cramer, Jake Hecla, Dufan Wu, Xiaochun Lai, Tim Boers, Kai Yang, Tim Moulton,Steven Kenyon, Zaven Arzoumanian, Wolfgang Krull, Keith Gendreau, Rajiv Gupta 2018, 'Stationary Computed Tomography for Space and other Resource-constrained Environments',Scientific Reportshttp://link.springer.com/article/10.1038/s41598-018-32505-z. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Finally, we present specific surface structuring as an effective method to mitigate the multipacting phenomenon from the photocathode channel.
Eden Tafa Tulu, Ursula van Rienen, André Arnold 2018, 'Systematic study of multipactor suppression techniques for a superconducting rf gun',Physical Review Accelerators and Beamshttp://doi.org/10.1103/PhysRevAccelBeams.21.113402. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
A transversely inhomogeneous laser distribution on the photocathode surface generally produces electron beams with degraded beam quality.
A. Halavanau, G. Qiang, G. Ha, E. Wisniewski, P. Piot, J. G. Power, W. Gai 2017, 'Spatial control of photoemitted electron beams using a microlens-array transverse-shapingtechnique', Physical Review Accelerators and Beamshttp://doi.org/10.1103/PhysRevAccelBeams.20.103404. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)