Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Chubenko, Oksana"'
An accurate estimation of the experimental field-emission area remains a great challenge in vacuum electronics. The lack of convenient means, which can be used to measure this parameter, creates a critical knowledge gap, making it impossible to compa
Externí odkaz:
http://arxiv.org/abs/2108.07440
Autor:
Chubenko, Oksana, Karkare, Siddharth, Dimitrov, Dimitre, Bae, Jai Kwan, Cultrera, Luca, Bazarov, Ivan, Afanasev, Andrei
Publikováno v:
Journal of Applied Physics 130, 063101 (2021)
The anticorrelation between quantum efficiency (QE) and electron spin polarization (ESP) from a p-doped GaAs activated to negative electron affinity (NEA) is studied in detail using an ensemble Monte Carlo approach. The photoabsorption, momentum and
Externí odkaz:
http://arxiv.org/abs/2106.13356
In this work, a pattern recognition algorithm was developed to process and analyze electron emission micrographs. Various examples of dc and rf emission are given that demonstrate this algorithm applicability to determine emitters spatial location an
Externí odkaz:
http://arxiv.org/abs/2012.03578
Publikováno v:
Journal of Applied Physics 125(20):205303 2019
In the nitrogen-incorporated ultrananocrystalline diamond ((N)UNCD) films, representing an $n$-type highly conductive two-phase material comprised of $sp^3$ diamond grains and $sp^2$-rich graphitic grain boundaries, the current is carried by a high c
Externí odkaz:
http://arxiv.org/abs/1812.05726
Autor:
Qiu, Jiaqi, Baturin, Stanislav S., Kovi, Kiran K., Chubenko, Oksana, Chen, Gongxiaohui, Konecny, Richard, Antipov, Sergey, Jing, Chunguang, Sumant, Anirudha V., Baryshev, Sergey V.
Publikováno v:
IEEE Transactions on Electron Devices Vol. 65(Issue 3):1132 -1138 (2018)
The complete design, fabrication, and performance evaluation of a compact, single cell, $X$-band ($\sim$9 GHz) electron injector based on a field emission cathode (FEC) are presented. A pulsed electron beam is generated by a 10's of kW radiofrequency
Externí odkaz:
http://arxiv.org/abs/1710.02166
Autor:
Chubenko, Oksana, Baturin, Stanislav S., Kovi, Kiran Kumar, Sumant, Anirudha V., Baryshev, Sergey V.
Publikováno v:
ACS Applied Materials & Interfaces 9(38):33229 (2017)
In this paper we study the effect of actual, locally resolved, field emission (FE) area on electron emission characteristics of uniform semimetallic nitrogen-incorporated ultrananocrystalline diamond ((N)UNCD) field emitters. To obtain the actual FE
Externí odkaz:
http://arxiv.org/abs/1703.04033
The letter introduces a diagram that rationalizes tunneling atomic force microscopy (TUNA) observations of electron emission from polycrystalline diamonds as described in recent publications. The direct observations of electron emission from grain bo
Externí odkaz:
http://arxiv.org/abs/1606.01397
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Autor:
Saha, Pallavi, Chubenko, Oksana, Kevin Nangoi, J., Arias, Tomas, Montgomery, Eric, Poddar, Shashi, Padmore, Howard A., Karkare, Siddharth
Publikováno v:
Journal of Applied Physics; 2/7/2023, Vol. 133 Issue 5, p1-9, 9p
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