484
INDEX
Fiber (Conf.)
Friedrich and Knipping, 206
—gauge, 367
Fundamental constants:
—
quartz, 385
—
back y leaf.
Field:
'
—
emission, 111
Gaede molecular pump, 356
—
in a diode, 115, 448
,
Gamma ray:
-—
in a discharge tube, 173
-——
absorption, 278, 282
-—
of-magnetic coil, 39, 45
——
coefcient, 279
Filament:
——
exper., 290
—
light radiation, 71
——
law, 279
—
probe, 166
.
——
table, 469
—see emission.
_
'
——
counter tubes, 423, 431
——
transformer, 448
—drop tracks, 281, 440
—
types of, 109
——
electroscope, 390
Films, thin (foils):
—
expansion chambers, 433
——
electrons through, 20, 56 (140)
——
exper., 290
_
'
——
photo—emission from, 77
-——
from articial disintegrations, 322
——
preparation, 64
——
from electron annihilation, 330
Filter:
.
.
——
from transmutations, 314, 326
—' for x-—rays, 201
—
in magnetic eld, 240
"
—
pump, 354
—
interaction With matter, 281
,
'
Fine structure:
——
ionization by, 282, 440
—
in x—ray spectra, 210
—
pair production, 330
——
of alpha rays, 263
-—
photo—disintegration, 329
Fliéker effect, 102
-—
photoelectric eEect, 89
Floating probe, 166
‘
—
summary of properties, 283
Flow of gases, 373
——
tracks, 281, 440
Flow method:
'
,
——
wave-lengths, 277
…
»
'
——
for mobility, 161
Gamow: 267
Fluctuations:
.
——
function, 326
_
°..— COSmÎC rays, 347
Gap, spark voltage, 461
,.
_
"'
statistical, 250
x
,
-
Gas—lled triode, 177
.
“
Fluorescent:
'
.
_.
exper., 188
,
—law,of Stokes, 203
‘
'_
,
Gases:
_
"
-
'
— Screens, 285, 65, 238
‘
_
—
_
——
absorbed, 362
,
_,
_
X-1‘aYS, 193, 202
——.— absorption of electronsin,l40
-
adsôrbed, 362
iii -‘F°Fe ‘PPfPP‘Ss
354
…
'
,-—, collection of, 379
…
F°fmtlnfëœs=
_
‘
:
.— 'conducon of, 1564190—
—eXPer254
—eïectron
of, 170