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A legend about the photoemission discharge


Rzhanov Institute of Semiconductor Physics, Siberian Branch of the Russian Academy of Sciences, prosp. Lavrent'eva 13, Novosibirsk, 630090, Russian Federation

It is shown that the currently advertised 'new form of discharge' (open discharge) — photoemission with virtually noneroding cathode and the 'anomalously high' (near unity) energy efficiency of electron beam (EB) formation --- cannot in fact be realized. In reality, such a discharge fits well into the familiar pattern of glow discharges controlled by heavy particle emission. Thus, in known EB sources, the energy efficiency of up to ≈0,8 is ensured by fast atoms from ion charge exchange in strong discharge fields. However, charge multiplication and the cathode-directed ion drift are both proportional to the flow of cathode electrons (including photoemitted ones), implying that the energy efficiency cannot increase. It is incorrect efficiency measurement methodology, which gives a result of about unity efficiency.

Fulltext pdf (513 KB)
Fulltext is also available at DOI: 10.3367/UFNe.2017.10.038360
Keywords: open discharge, electron emission from the cathode, electron beams in discharge
PACS: 52.80.Tn
DOI: 10.3367/UFNe.2017.10.038360
URL: https://ufn.ru/en/articles/2018/12/e/
000459955400005
2-s2.0-85063509925
2018PhyU...61.1234S
Citation: Sorokin A R "A legend about the photoemission discharge" Phys. Usp. 61 1234–1240 (2018)
BibTexBibNote ® (generic)BibNote ® (RIS) MedlineRefWorks
PT Journal Article
TI A legend about the photoemission discharge
AU Sorokin A R
FAU Sorokin AR
DP 10 Dec, 2018
TA Phys. Usp.
VI 61
IP 12
PG 1234-1240
RX 10.3367/UFNe.2017.10.038360
URL https://ufn.ru/en/articles/2018/12/e/
SO Phys. Usp. 2018 Dec 10;61(12):1234-1240

Received: 7th, September 2017, revised: 24th, January 2018, 26th, October 2017

Оригинал: Сорокин А Р «Легенда о фотоэмиссионном разряде» УФН 188 1354–1360 (2018); DOI: 10.3367/UFNr.2017.10.038360

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