'
INDEX
,
Summary; ,
_
Thompson, ]. S., 154
,
'
——
of radioactive rays, 283
,
Thoriated laments, 109
.
Sun: radiation from, 235, 71
Thorium‘:
'
Super-control tubes, 121
-
—
active deposit, 248
_
,
Suspensions:
—
C, formation; 248
.
-
——
and'Brownian movements, 10
-
——_— apparatus, 255
.
‘
-—
quartz, 385
—
——
exper.,
254
_
_
——
C, decay, 248
«
Tables, 459
.
:
—exper., 257
"
Technique:
—
emanation, 248
-—
high voltage, 442—449, 296—305
»
——
exper., 257
-—
particle, 418—441
'
-—
series, 471, 242
_
‘
ses preparation of.
»
——
chart, 242
—
small current, 387—417
_
-———
table, 471
.
—'
vacuum, 354—386
—
transrriutations, 336
Temperature:
Thornton, Pool and Cork, 1532
-———
of electrons in gas, 170
Thoron: 248
Ï
‘
——
of laments, 112
——
exper.,
257
,
+ partial, 170
_
'
Three-electrode tubes, 118
?
—, safe fof glass, 361 _'
«
Threezhalves power law, 116
ï
_
Tetrodes:
.
.
_ '
‘
Three-stage pumps,
358
,_
i'
—
screen grid, 125
Threshold:
.
.
…
—'spa’ce charge, 124
_
_
—
of counter tubes, 429,432
*
Theory} quantum, 77
ï
‘_
_
_
—_— photoelectric, 71, 82
Thermal, noise: 103
’
Ï
—,
,
—
table, 459
,
;
Thermionicz
_
.,
«
,
-
,
.
Thyratron: 177
'
,
] _-—…—Q-cmîs$ionä99—u4 «_.,;g
,
;
——
exper., 188 …
_
,
,
.
——ofe1ectronswo
,
—
Time:
«
'
“»;,
——
0fposxtlVelons,305
..
‘
——deionization, 165
,
__
…
“lamentS,109 "
,.
«;
_î
—workfuncnonw7—lw(æ)
——Photoelectrlc74,
Thermocouplegauge,367 — half—life,246
“e/m0fdecmnï—electr°ncharg82
_exper4äTracksseeroptræks
_exper>237_deœrmmatwn245
”'s°a“°“ng°f“aysm—°XPement254