464
’
TABLES
-
‘
TABLE 7.——ALPHA PARTICLES
vo = initial velocity, B = vo/c, c = velocity of light. 6% = initial kinetic
'
energy
in ergs', = Mo€(l/‘\/1 — 62 —— 1), M0 = rest mass.
V0 = initial kinetic
energy
in electron kilovolts, V o = 36‘ä/105. Hr (H = eld in oersteds to curve par—
ticle into a circle of radins r, cm.) , Hr = (M00/26) (1 / \/ 1 —- B2). R = mean range in
air at 760 mm. and 15° C. f= total number of ion pairs produced in air by one
particle.
(lo
'
éÔo
Vo
HV
32
.
-
R
%
cm. /sec.
_
ergs
k1lo—
gauss — cm.
109 ><
… 3 X
10—5 ><
volts
105 ><
°”"
105 X
0.75
0.626
0.1857
1,167
1.555
0.55
0.33
—
0.80
0.712
0.2113
1,328
1.659
0.62
0.38
:
0.804
,
1,499
1.763
0.70
0.43
.'
0.90
0.901
'
0.2674
1,681
1.867
0.80
0.48
0.95
1.004
0.2980
1,873
1.971
0.91
0.53
1.00
1.113
0.3302
2,075
2.074
1.04
0.59
1.05
…
1.227
0.3641'
2,288
2.178
1.18
0.65
1.10
1.346
0.3996
2,511
2.282
1.32
0.72
1.15
1.471
04368
2,745
x
2.386
1.48
0.79
1.20
1.602
0.4756
2,989
2.490
1.67
0.86
‘
1.25 '
1.739
0.5161
3,244
2.594
1.87
0.93
'
.
1.30
1.881
0.5583
3,509
2.698
2.09
.
1.00
,
1.35
2.028
0.6022
3,785
2.802
2.33
1.08
,
_
1.40
2.181
0.6477
'
4,071
2.906
2.58
1.17
,
'
'
'
1.45
2.340
,
0.6948
4,368
3.010
2.86
1.25
.
1.50 '
2.504
0.7437
'
4,674
3.114
3.17
1.34
1.55
2.673
0.7941
'
4,991
3.218
'
'
3.50
1.43
_
'
_" 1.60
2.849 '
018463
5,319
_
3.322"
7
3.85
1.52
'
,
1.65‘
*
3.029
09002
5,658
3.426 .
‘
4.24
…
'f:1.._70,…
,
3.216…0.9558
6,008
; 3,530
,
_;4.65
1.72
'
51475 ,
'
,
.
6,367
5.635 ,
5 .09
_
148233
v
180 ”f
Î .; 2110713?
3 739‘
…
,
557
*i:èï93
.
*
135
75117
A— :
"
«
608 :» 333 =
190 Â4
"11945
{?
'3. 947“ 562
15
1954231 “L:—' 12584
,
‘
_Â
720
215 5144 15309 9622 4469
992
276
220 538616032 10,077 45741071 2 88
225 563316772103543 46781154 302
230588717529110184783 1242 316
’
TABLES
-
‘
TABLE 7.——ALPHA PARTICLES
vo = initial velocity, B = vo/c, c = velocity of light. 6% = initial kinetic
'
energy
in ergs', = Mo€(l/‘\/1 — 62 —— 1), M0 = rest mass.
V0 = initial kinetic
energy
in electron kilovolts, V o = 36‘ä/105. Hr (H = eld in oersteds to curve par—
ticle into a circle of radins r, cm.) , Hr = (M00/26) (1 / \/ 1 —- B2). R = mean range in
air at 760 mm. and 15° C. f= total number of ion pairs produced in air by one
particle.
(lo
'
éÔo
Vo
HV
32
.
-
R
%
cm. /sec.
_
ergs
k1lo—
gauss — cm.
109 ><
… 3 X
10—5 ><
volts
105 ><
°”"
105 X
0.75
0.626
0.1857
1,167
1.555
0.55
0.33
—
0.80
0.712
0.2113
1,328
1.659
0.62
0.38
:
0.804
,
1,499
1.763
0.70
0.43
.'
0.90
0.901
'
0.2674
1,681
1.867
0.80
0.48
0.95
1.004
0.2980
1,873
1.971
0.91
0.53
1.00
1.113
0.3302
2,075
2.074
1.04
0.59
1.05
…
1.227
0.3641'
2,288
2.178
1.18
0.65
1.10
1.346
0.3996
2,511
2.282
1.32
0.72
1.15
1.471
04368
2,745
x
2.386
1.48
0.79
1.20
1.602
0.4756
2,989
2.490
1.67
0.86
‘
1.25 '
1.739
0.5161
3,244
2.594
1.87
0.93
'
.
1.30
1.881
0.5583
3,509
2.698
2.09
.
1.00
,
1.35
2.028
0.6022
3,785
2.802
2.33
1.08
,
_
1.40
2.181
0.6477
'
4,071
2.906
2.58
1.17
,
'
'
'
1.45
2.340
,
0.6948
4,368
3.010
2.86
1.25
.
1.50 '
2.504
0.7437
'
4,674
3.114
3.17
1.34
1.55
2.673
0.7941
'
4,991
3.218
'
'
3.50
1.43
_
'
_" 1.60
2.849 '
018463
5,319
_
3.322"
7
3.85
1.52
'
,
1.65‘
*
3.029
09002
5,658
3.426 .
‘
4.24
…
'f:1.._70,…
,
3.216…0.9558
6,008
; 3,530
,
_;4.65
1.72
'
51475 ,
'
,
.
6,367
5.635 ,
5 .09
_
148233
v
180 ”f
Î .; 2110713?
3 739‘
…
,
557
*i:èï93
.
*
135
75117
A— :
"
«
608 :» 333 =
190 Â4
"11945
{?
'3. 947“ 562
15
1954231 “L:—' 12584
,
‘
_Â
720
215 5144 15309 9622 4469
992
276
220 538616032 10,077 45741071 2 88
225 563316772103543 46781154 302
230588717529110184783 1242 316