INDEX
,
485
Gases
Graetz bridge, 297
—
10n1zaüon of (Cent.)
Grating:
'
‘
"
'_ '
_
eXper., 152) 154
—
constant, 207
'
—
occluded,
361
——
diffraction of light, 53
-
-—
pur1catron of, 377
—
reection of X—rays, 12, 53
'
—
rate of ow, 373
-—
space, 53
_
.
——
residual,
Greina‘cker, 297
"
Gauges, 364—370
Grid:
Geiger:
——
control ratio, 178
‘ _
—and Nuttall;
-—
-glow tube, 177
_
‘
—
range measurement, 266
-——
in vacuum tube, 117
.
'
——
relation, 267
,
Grondahl, 88
—
counter, 424
'
—-Müller tubes;
'
——
see counter tubes.
H—particle5, 307
‘
Geissler discharge, 172, 165
h/
.
Geitel, 68
'
-——
from photoclectrié effect, 81
_
General x-ray spectrum, 192
—À— exper., 95
'
'
_
Generator:
’
——
from x-rays, 90
_
-—
belt, 299
——-—
exper.,
220
.
-—
cascade transformer, 302
value of, back ply leaf
'
.
——
high frequency, 302
_
H-r, for particles:
.
—
impulse, 301
'
‘-— equation, 29 '
—-—
Van de Graaff, 300
,
——
for alpha particles,-table,
464
Germer, and Davisson, 51
—
for electrons, table, 466
,
'
_
Getters, 363
,
'
——
for protons, table,465
.
,
'
'
Glancing angle:
_
.
equation, 37
_
_
——
x—ray reection, 12
.
,
—
Half—life, radioactive:
,
_
,
_
_
,
Glass:
,
«
»
-—-—
articial substances, 321, 329
-—
cleaning, 380, 384 ,:
—
,
:
«- denition, 245”
_
,
_
,
L.],
'
—safe temperature of, 361
—
— eXPêl‘->
256'
._
j
‘
,
_
;
.;
_
’
-
Glow discharge, 172
'“
‘
'
_
long-lived products,
'
_
-__
exper.,
181
_
_— »
—‘—_
natural substances, 471 _
_
—
—
starting condition, 164
_'
—
short-lived products,
247
.
…
—
stopping conditibn, 164
Half-period:
-
_
.
Glow, cathode,
‘
see half—life
«
-
«
,
.
Gockel, 343
,
67 i;*::
içi,
_
“
Goldstein, 223 a
‘
'
‘
_
x-ray tube" 1941
7—
‘
Gradientr
*
Harnwe,47
,…
—=dis'fuiäfvè,"ofatr446 < ' HarperandNeher4”
‘
,
—
in concentnccylmders448
Heatconductwn104
“
—ofhghvoltagetubes304299445Heavyhydmgenm Ï j ’îç»îi
*
_
‘
»
—
potential1ndwdes115Heavy‘*”“°r232
_‘
176”“nudearthwy’233f»'°—«‘£iüïîëî
‘
'. ‘