1
1
…
l
l
l
l
,
INDEX
-
Atomic (Gant)
‘
Beta particle (Conf.)
-
—_— weight,
231
—
—-—
maximum energy of,
_
_
——
werghts, numbers, table; on back
—
momentum, 275
cover.
——
nature of, 274
'
Auger effect, 278
—
range of, 282
_
Average life, 246
—
shallow Chambers for, 420
Avogardro’s number:
specic ionization, 282
—
—
determination of, 10, 13, 9
——
summary of properties, 283
,
'
'
—
by Brownian movements, 10
-—
velocity, 276
——
by x—ray method, 13
Beta ray:
-
——
value of, 13, 9
——
absorption of, 278
—
——
exper., 17
.
——
coefcients, 279
——
exper., 289
_
.
Background count, 427
——
table, 468
,
_
Bainbridge:
.
——
deection, 275
.
'
——
mass spectrograph, 231
——
e/m, 36
-
Baking—out, 361
_
»
—
mass vs.
_
-
Balanced circuit:
-—
drop-tracks, 281, 439 -
'
—
amplier, 408
,
—
—
—
electroScopés, 390
'
—electrometer, 399
——
interaction With matter, 281
_
-
Bar, bayre, denition, 364
_
——
source, 289
‘
,
Bark1a, 204, 210
'
—
spectra, 274
,
‘
'
.
-
_
Barometer effect, 347
'
_
spectrograph, 275
.
,
.
Barrier:
,
-—
tables, 466—468
_
‘
-
'
—
and work function, 82 ‘
velocity selection, 36
_
_
.
-—
layer photo-cell, 87
,
Bilar electrometer, 407
{
-
—
of metal surface, 56
,
_
-
Binant electrometer, 405
,
_
-,
'
Î
——
potential of nucleus, 268
_
Binding energy, 234
,
_
<
«
.
_
;
Battery eliminator,
15
'
î" ?
Birge and M€nde 232
',
,
'
_
.:_
_
Beam power tube, 128
_
Blackbody radiation, 72, ' ‘
_
.
…
Beams, ]. W., 74
.
_
”
Blàckett:
.
'
_
…
‘—
Ï
Bearden, ]. A., 12
…
:_
'
_
,
.
——
alpha—proton transmutation, 309
—
Becker and Both€, 315
"
'
î
._
and Occhialini,
'
=‘”».
—
'
Becquerel: &
…:>ç
BÏOCka 271
-,
Î.
‘
'
…
_ photo-voltàîc
_
.
.
Bohr, 141, 79,337 0
‘…
v
…
‘
——
radioactive
.lÎ, _.
Boltzmann
-4
-
'
ï
-
"
BennettComptonanâWoan414
'
andBeckef315 -,
ff
'
,
..
——chargeof274
….
BradburY162 :"Ï
»
—
'
——dismtegratmnelectrons276”°““’“‘3273
* *
‘
—droptracks°f4ô9zi “XfaylaW2065413 "iï ;‘
_
-
:…ç…
‘
…
.