Field-ionization relative sensitivities for analysis of coal-derived liquids determined as a function of ion-source temperature and binary-mixture composition

1977 ◽  
Vol 49 (12) ◽  
pp. 1847-1850 ◽  
Author(s):  
S. E. Scheppele ◽  
G. J. Greenwood ◽  
P. A. Benson
Keyword(s):  
Binary Mixture ◽  
Ion Source ◽  
Mixture Composition ◽  
Field Ionization ◽  
Source Temperature

scholarly journals Testing an indirectly heated cathode ion source: Temperature and thermionic emission

AIP Advances ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 105202
Author(s):  
C. F. M. Borges ◽  
M. A. Jerez ◽  
A. Parizat
Keyword(s):  
Thermionic Emission ◽  
Ion Source ◽  
Source Temperature ◽  
Heated Cathode

scholarly journals Mixing Characteristics of Binary Mixture with Biomass in a Gas-Solid Rectangular Fluidized Bed

Energies ◽  
2019 ◽  
Vol 12 (10) ◽  
pp. 2011
Author(s):  
Guiying Wu ◽  
Bangting Yu ◽  
Yanjun Guan ◽  
Xuehui Wu ◽  
Kai Zhang ◽  
...  
Keyword(s):  
Binary Mixture ◽  
Fluidized Bed ◽  
Binary Mixtures ◽  
Silica Sand ◽  
Mixture Composition ◽  
Inert Material ◽  
Gas Velocity ◽  
Mixing Characteristics ◽  
Superficial Gas Velocity ◽  
Initial Packing

Aiming to better understand the biomass pyrolysis and gasification processes, a detailed experimental study of the mixing characteristics is conducted in a fluidized bed with binary mixtures. Rapeseed is used as biomass, and silica sand or resin as inert material. The effect of mixture composition, initial packing manner, and superficial gas velocity on the concentration distribution is investigated in a rectangular fluidized bed by means of photography and sampling methods. The results show that the mixture composition plays an important role in the axial solids profile of binary mixtures. The mixing behavior of binary mixture is dominated by the bubble movement. The axial distribution of binary mixtures becomes uniform with increasing superficial gas velocity, whilst no obvious effect of initial packing manner is observed in this study.

A 65 keV Proton Scanning Microscope

1974 ◽  
Vol 32 ◽  
pp. 416-417
Author(s):  
William H. Escovitz ◽  
Timothy R. Fox ◽  
Riccardo Levi-Setti
Keyword(s):  
Ion Source ◽  
Field Ionization ◽  
Hydrogen Ions ◽  
Scanning Microscope ◽  
Electron Multiplier ◽  
Tungsten Tip

We have constructed a prototype scanning gun microscope which uses 65 keV hydrogen ions as a probe. A field ionization ion source, consisting of a tungsten tip (∼ 1000Å radius) cooled to 78° K in an H2 atmosphere, yields H+ and H2+ ions, which are then accelerated and focused by a two-electrode accelerating lens. The spot is deflected electrostatically to scan the specimen and the transmitted particles are detected by a continuous-dynode electron multiplier.

Field ionization characteristics of an ion source array for neutron generators

2013 ◽  
Vol 114 (17) ◽  
pp. 174906 ◽  
Author(s):  
B. Bargsten Johnson ◽  
P. R. Schwoebel ◽  
P. J. Resnick ◽  
C. E. Holland ◽  
K. L. Hertz ◽  
...  
Keyword(s):  
Ion Source ◽  
Field Ionization ◽  
Neutron Generators ◽  
Source Array
Sign in / Sign up

Export Citation Format

Share Document