488
-
'
INDEX
;
Lane;
_
_
Lithium, transmutation of (Conf.)
‘
——
apparatus,
208
——
by neutrons, 332
_
——
crystal structure, 205
.
——
exper.,
337
_
f
——
diffraction of x—rays, 207
——
gamma rays from, 326
.
—
exper.,
216
—
magnetic separation, 324
—
photographs, 216
——
yield, 323
'
_
-—
spots, 207
Livingood: 47
Lavite leaks, 377
Loeb, mobility, 163
Lawrence:
Longitude effect, 350
-—-—
and Sloan, 292
Lorentz, 37
-
—
cyclotron, 293
Low pressure, see vacuum.
'
—
linear accelerator, 292
Lumen, 73
——
photoelectric time factor, 74
Luminescent screens, 285, 235, 65
.
Lead:
Lumped voltage, 120
—
radioactive, 242, 253
’
.
shield, 199
'
Leaf of electroscope: 393
Mache unit, 241
- - —f :
'
Lea-ks:
Magnesium isotopes, 228
'
' _Jf
—4 in vacuumsystem, 371,
Magnetic:
.—
of an electroscope, 392, 342
——
eld coils (<=/m), 43, 39
,
_
Lénnard:
——
lenses, 129
'
e/m_of electrons, 24
-
—
resonance accelerator, 293
-——
ionizing potential, 147
‘
——
spectrograph;
_
,
_
’
.
-—
photo—electric, 68
_
—— for beta rays, 275
'
——
rays, 21 (140, 191)
——
for cosmic rays, 349
'
'
Lenses, for electrons,
132” “
_
‘
—
for positive rays, 226—231
_
-
,_
LÏfe:
'
Magnetron, 30
-
_
’
'
—
average-, 246 '
-
‘
*
Manom‘eters, 364
__
_
_'
— half—, 246
w
,
‘
r
;
Mano, 325
_
_
_
_
_
471
-
-'
ManufaCturez,
Light
…
'
—“— of counter tubes,431
‘
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