scholarly journals Photoelectron emission induced by low temperature hydrogen plasmas

2018 ◽  
Author(s):  
Janne Laulainen ◽  
Taneli Kalvas ◽  
Hannu Koivisto ◽  
Risto Kronholm ◽  
Olli Tarvainen
Keyword(s):  
Low Temperature ◽  
Photoelectron Emission ◽  
Hydrogen Plasmas

scholarly journals Work function behavior of a biased C12A7 electride in low temperature hydrogen plasmas

2021 ◽  
Author(s):  
A. Heiler ◽  
R. Friedl ◽  
U. Fantz ◽  
R. Nocentini ◽  
M. Sasao
Keyword(s):  
Low Temperature ◽  
Work Function ◽  
Hydrogen Plasmas

scholarly journals Radiation Charge Exchange and Radiation Ion-Atom Recombination as a Source of Continual E-M Radiation from Astrophysical Plasma

1993 ◽  
Vol 155 ◽  
pp. 189-189
Author(s):  
A.A. Mihajlov ◽  
M.S. Dimitrijevic ◽  
A.M. Ermolaev
Keyword(s):  
Low Temperature ◽  
Hydrogen Plasma ◽  
Molecular Ions ◽  
Low Temperature Plasma ◽  
Temperature Plasma ◽  
Hydrogen Plasmas ◽  
Weakly Ionized ◽  
Reaction Channels ◽  
Electro Magnetic ◽  
Spectral Intensities

We show that for the study of emission from weakly ionized low temperature hydrogen plasmas, the processes A+ + A → A+ + A + ħω and A+ + A → A+2 + ħω (where A denotes a neutral atom in ground state and, A+ and A+2 atomic and molecular ions) must be treaded as a source of continual electro–magnetic radiation from low temperature plasma. Both reaction channels are treated separately and the corresponding total and separate spectral intensities are determined for hydrogen plasma at T < 10000K. The obtained results have been also compared with the corresponding spectral intensities for electron–ion bremsstrahlung and electron–ion photorecombination.

scholarly journals Work function performance of a C12A7 electride surface exposed to low pressure low temperature hydrogen plasmas

2021 ◽  
Vol 39 (1) ◽  
pp. 013002
Author(s):  
A. Heiler ◽  
K. Waetzig ◽  
M. Tajmar ◽  
R. Friedl ◽  
R. Nocentini ◽  
...  
Keyword(s):  
Low Temperature ◽  
Work Function ◽  
Low Pressure ◽  
Hydrogen Plasmas

Exsolution and inversion in pigeonite from the Whin Sill, Northern England

1978 ◽  
Vol 36 (1) ◽  
pp. 474-475
Author(s):  
P.P.K. Smith
Keyword(s):  
High Temperature ◽  
Low Temperature ◽  
Homogeneous Nucleation ◽  
Silicate Mineral ◽  
Antiphase Boundaries ◽  
Two Phase ◽  
Primitive Form ◽  
The Core ◽  
Nucleation Mechanisms ◽  
And Inversion

Grains of pigeonite, a calcium-poor silicate mineral of the pyroxene group, from the Whin Sill dolerite have been ion-thinned and examined by TEM. The pigeonite is strongly zoned chemically from the composition Wo8En64FS28 in the core to Wo13En34FS53 at the rim. Two phase transformations have occurred during the cooling of this pigeonite:- exsolution of augite, a more calcic pyroxene, and inversion of the pigeonite from the high- temperature C face-centred form to the low-temperature primitive form, with the formation of antiphase boundaries (APB's). Different sequences of these exsolution and inversion reactions, together with different nucleation mechanisms of the augite, have created three distinct microstructures depending on the position in the grain.In the core of the grains small platelets of augite about 0.02μm thick have farmed parallel to the (001) plane (Fig. 1). These are thought to have exsolved by homogeneous nucleation. Subsequently the inversion of the pigeonite has led to the creation of APB's.

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