Index
Fundamentals of Vacuum Technology
D00.186
LEYBOLD VACUUM PRODUCTS AND REFERENCE BOOK 2001/2002
Oil contamination . . . . . . . . . . . . . . .135
Oil diffusion pumps . . . . . . . . . . . . . .36
Oil sealed rotary displacement
pumps . . . . . . . . . . . . . . . . . . . . . . . .18
Oil vapor ejector vacuum pumps . . . .36
Oil-free (hydrocarbon-free)
vacuum . . . . . . . . . . . . . . . . . . . .39, 60
Oils (pump fluids) . . . . . . . . . . . . . . .39
Open (normal) ion source . . . . . . . . . .90
Optical coatings . . . . . . . . . . . . . . . .131
Oscillation displacement pumps . . . . .17
Oscillator, ( active, mode-lock) .122, 123
Outgasing of materials . . . . . . . . . . .145
Outgasing rate (referred to
surface area) . . . . . . . . . . . . . . . . .9, 61
Outside-in leak . . . . . . . . . . . . . . . . .107
Overpressure . . . . . . . . . . . . . . . . . . . .7
Oxide-coated cathodes . . . . . . . . .78, 90
Partial final pressure . . . . . . . . . . . . .74
Partial flow opeartion . . . . . . . . . . . .115
Partial flow ratio . . . . . . . . . . . . . . . .116
Partial pressure . . . . . . . . . . . . . . . . . .7
Partial pressure measurement . . . . .100
Partial pressure regulation . . . . . . . .101
Particle number density . . . . . . . . . . . .7
Paschen curve . . . . . . . . . . . . . . . . .163
Penning vacuum gauges . . . . . . . . . .77
Perbunan . . . . . . . . .68, 149 - 151, 161
Period measurement . . . . . . . . . . . .122
Permissible pressure units . . . . . . . .142
Phase diagram of water . . . . . . . . . .164
Photons . . . . . . . . . . . . . . . . . . . . . . .79
PIEZOVAC . . . . . . . . . . . . . . . . . . . . .73
Pirani vacuum gauge . . . . . . . . . . . . .76
Plastic tent (envelope) . . . . . . . . . . .118
Plate baffle . . . . . . . . . . . . . . . . . . . . .39
PNEUROP . . . . . . . . . . . . . . .165 – 168
PNEUROP flanges . . . . . . . . . . . . . . .68
Poiseuille flow . . . . . . . . . . . . . . . . . .12
Poisson's law . . . . . . . . . . . . . . . . . .11
Positive pressure methode
(leak detection) . . . . . . . . . . . . . . . .106
Pre-admission cooling (roots
pumps) . . . . . . . . . . . . . . . . . . . . . . .27
Precision diaphragm vacuum gauge . .72
Pressure . . . . . . . . . . . . . . . . . . .7, 168
Pressure and temperature as
function of altitude . . . . . . . . . . . . . .155
Pressure converter . . . . . . . . . . . . . . .92
Pressure dependence of the
mean free path . . . . . . . . . . . . .145, 154
Pressure difference oil supply . . . . . . .19
Pressure lubrication by geared
oil pump . . . . . . . . . . . . . . . . . . . . . .19
Pressure measurement
direct / indirect . . . . . . . . . .71, 179, 180
Pressure measurement, depending on /
independent of the type of gas . . . . . .71
Pressure ranges in vacuum
technology . . . . . . . . . . .12, 56, 57, 145
Pressure regulation / control . . .84, 180
Pressure regulation / control rough
and medium vacuum systems . . . . . .84
Pressure regulation in high and
ultra high vacuum systems . . . . . . . .87
Pressure regulation, continuous /
discontinuous . . . . . . . . . . . . . . .84, 86
Pressure rise / drop (leak) test .107, 108
Pressure units . . . . . . . . . . . . . . .7, 142
PTB (Federal physical-technical
institute) . . . . . . . . . . . . . . . . . . . . . .81
Pumpdown time . . . . . . . . . . . . .62 - 66
Pump fluid . . . . . . . . . . . . . . . . . . . . .39
Pump fluid backstreaming . . . . . . . . .39
Pump fluid change cleaning
(diffusion pumps) . . . . . . . . . . . . . .139
Pump oil, selection when handling
aggressive vapors . . . . . . . . . . . . . .135
Pump throughput . . . . . . . . . . . . . . . . .9
Pumping (gas sorption) of
vacuum gauges . . . . . . . . . . . . . .77, 78
Pumping chamber . . . . . . . . . . . . . . .16
Pumping of gases . . . . . . . . . . . . . . .57
Pumping of gases and
vapors . . . . .20, 21, 34, 52, 57, 58, 135
Pumping speed . . . . . . . . . . . . . . . . . .8
Pumping speed units,
conversion of . . . . . . . . . . . . . . . . . .144
Pumping various chemical
substances . . . . . . . . . . . . . . . . . . .136
Purge gas . . . . . . . . . . . . . . . . . . . . .29
PVD (physical vapor deposition) . . .128
pV-flow . . . . . . . . . . . . . . . . . . . . . . . .9
pV-value . . . . . . . . . . . . . . . . . . . . . . .8
Quadrupole mass spectrometer . . . . .89
Quadrupole, design of the sensor . . . .90
Quadrupole, gas admission /
pressure adaptation . . . . . . . . . . . . . .93
Quadrupole, measurement system
(detector) . . . . . . . . . . . . . . . . . . . . . .92
Quadrupole, separating system . . . . .91
Quadrupole, specifications . . . . . . . . .94
Qualitative gas analysis . . . . . . . . . .100
Quantitative gas analysis . . . . . . . . .101
Quantity of gas (pV value) . . . . . . . . . .8
Quartz crystals, shape of . . . . . . . . .121
Rate watcher . . . . . . . . . . . . . . . . . .120
Reduction of adsorption capacity . . .139
Reduction ratio . . . . . . . . . . .24, 25, 137
Refrigerator cryopump . . . . . . . . .49, 51
Regeneration time . . . . . . . . . . . . . . .53
Relative ionization probability (RIP) . .98
Residual gas composition
(spectrum) . . . . . . . . . . . . . . . . . .43, 44
Response time of leak detectors . . . .117
Reynold's number . . . . . . . . . . . . . . .12
Rigid envelope . . . . . . . . . . . . .118, 119
Roots pumps . . . . . . . . . . . . . . . . . . .24
Roots pumps, Instructions for
operation . . . . . . . . . . . . . . . . . . . . .137
Rotary displacement pumps . . . . . . . .18
Rotary plunger pumps . . . . . . . . . . . .20
Rotary vane / piston pumps,
Instructions for operation . . . . . . . . .135
Rotary vane pumps . . . . . . . . . . . . . .18
Salt, drying of . . . . . . . . . . . . . . . . . .66
Saturation vapor pressure
(nonmetallic gaskets) . . . . . . . . . . . .161
Saturation vapor pressure . . . . . . .7, 22
Saturation vapor pressure
(cryogenic technology) . . . . . . . . . . .161
Saturation vapor pressure (metals) . .160
Saturation vapor pressure
(pump fluids) . . . . . . . . . . . . . . . . . .160
Saturation vapor pressure
(solvents) . . . . . . . . . . . . . . . . . . . .160
Saturation vapor pressure and
vapor density of water . . . . . . .147, 164
Sealing passage . . . . . . . . . . . . . .18, 19
Seal-off fitting . . . . . . . . . . . . . . . . . .69
Selection of pumps . . . . . . . . . . . . . .56
Selection of pumps for drying
processes . . . . . . . . . . . . . . . . . . . . .66
Sensitivity of quadrupole sensors . . . .95
Sensitivity of vacuum gauges . . . . . . .78
Separating system of
mass spectrometers . . . . . . . . . . . . . .90
Shell baffle . . . . . . . . . . . . . . . . . . . . .39
Silicone oils, DC 704, DC 705 . .39, 160
Small flange . . . . . . . . . . . . . . . . . . . .67
Smallest detectable concentration . . . .95
Smallest detectable partial pressure . .95
Smallest detectable partial
pressure ratio . . . . . . . . . . . . . . . . . .95
Sniffer technology . . . . . . . . . . . . . .118
Software for TRANSPECTOR . . . . . .102
SOGEVAC pumps . . . . . . . . . . . . . . .18
Solvents . . . . . . . . . . . . . . . . . . . . . .146
Sorption pumps . . . . . . . . . . . . .45, 177
Specific volume of water vapor .147, 163
Spinning rotor gauge (SRG) . . . . . . .75
Spray technique (Helium) . . . . . . . . .117
Sputter ion pumps, Instructions
for operation . . . . . . . . . . . . . . . . . .140
Sputter pumps . . . . . . . . . . . . . . . . . .46
Sputtering . . . . . . . . . . . . . . . . . . . .129
Sputtering (cathode sputtering) . . . .129
Sputter-ion pumps . . . . . . . . . . . .46, 47
SRG (spinning rotor gauge),
VISCOVAC . . . . . . . . . . . . . . . . . . . . .75
Stability for noble gases (sputter ion
pumps) . . . . . . . . . . . . . . . . .46, 47, 48
Standard pressure . . . . . . . . . . . . . . . .7
Standards in
vacuum technology . . . . . . . .171 – 173
Static expansion method . . . . . . .81, 82
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