,
.
'
474
INDEX
—
Alpha particle (Gant)
Amplication:
‘
'
—
range curves,264
-—
constant, 119
_
-
—
'
—
range of, 263
‘
_
——
exper., 136
"
——
electrical method, 286
——
internal, 423
—
‘
——_scintillation method, 283
Ampliers:
'
——
scattering by foil, 141
—
d. c., 408
-—
shallow chamber for, 418
7
——
linear, 421
_
'
_—— stopping power for;
——
noises, 102, 104
_—-——- exp'er., 287
_
'
——
small current, 408
——
table, 463
_
__
———tube for, 124
'
——
tables, 462—464
Analysis of crystals:
——
velocity Of, 262
'
——
by electrons; 58
-
——-—
in a gas, 272 -
—
by x—rays, 207
'
'
Alpha-proton
——
exper., 216
—
capture process, 309
Anderson:
-
-—‘—
drop tracks of, 309
'
'
'
——
positr0n discovery, 319
‘
,'
'
——
early work, 308
Annihilation:
'
momentum conservation, 310
—
of electron pairs, 330
…
——
reaction scheme, 310
'
Arc discharge, 177
"
_
"
'
,
——
the ejected protons, 311
'
Articial:
’
'
'
Alpha rays:
”
—
radioactivity, 320 —
_
——
absorption of, 390
.
"
'
_
—
transmutation, 307—341
'
—
deection, 262
_
'
‘
"
'
’
Aspirator, water, 354
.
——
electroscopes, 388
__
”'
"
‘
'
"
Aston:
'
'.
‘
'
,
'
——
ionization by, 271
_
'
"
"'
Î
——
hydrogen isotopes, 232
'
‘
.
.
along path, 273
_
_
'
_
—
mass spectrogreiph, 226
_
.
- '
exper.,
286 ‘
'.
“
"
—
neon isotopes, 227
'
'
.
'
‘_—‘—— ex_per;, 287
,
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