mR HA
enA YERR
TN AE IRINRE errs ER eg ToT NeNetty chine pe
Table 10.27--DECAY ANALYSIS OF AIR FILTER SAMPLE 21A144
{1 to 18 November 1952)
Run no. $
Instrument No. 4A
G-M tube No. 4A
a
\
,
ert
Window thickness, 1.9 mg/cm?
Air thickness, 2.07 mg/cm*®
Time
Grose
Counting
time,
Total
Standard
Corrected
(GMT)
count
min
counts/min
Background
Coincidence
counts/min
factor
counts/rain
Nov.
Nov.
Nov.
Nov.
Nov.
Nov.
Nov.
Nov.
Nov.
Nov.
Nov.
Nov.
Nov.
Nov.
Noy.
Nov.
Nov.
Nov.
Nov.
Nov.
Nov.
Nov.
Nov.
Nov.
Nov.
Nov.
Nov.
Nov.
Nov.
Nov.
Nov.
Nov.
0900
1010
1110
1210
1400
1502
1600
1700
1800
2220
o717
1420
2230
0705
0810
1430
1015
1140
1000
31510
1140
1045
1110
M15
1000
1010
1310
0840
1000
1015
1505
0915
163,840
163,840
81,920
81,920
81,920
81,920
61,920
61,920
81,920
40,960
40,960
40,960
40,960
40,966
46,960
6,192
20,480
$,000
4,096
4,096
4,096
0
4,096
4,096
4,096
4,096
4,096
4,086
4,006
4,096
4,096
2,048
1.93
3.31
2.06
2.52
3.06
3.43
3.71
3.98
4.18
2.62
3.84
§.02
6.32
7.90
13.05
2.93
10.74
3.47
3.20
3.34
20.00
§.30
5.26
4.33
6.28
6.28
1.34
9.64
9.98
16.40
13.91
T18
94,800
49,600
39,700
$2,500
26,790
23,440
22,100
20,550
19,550
15,600
10,650
8,350
6,480
$,200
3,140
2,800
1,907
1,440
1,283
1,185
947
0
712
q18
651
651
550
425
410
399
294
286
28
28
28
28
26
28
28
38
28
28
30
30
30
35
42
42
43
a
46
46
79
3/60
ee
68
45
45
48
46
“5
45
50
42
30,084
8,168
6,243
3,521
2,356
1,825
1,618
1,401
1,263
810
398
231
143
8
124,856
$7,738
44,915
35,993
29,218
25,237
23,689
21,923
20,785
16,382
11,018
8,551
6,593
6,173
3,098
2,758
1,864
1,365
1,237
1,139
868
Qo
107
07
606
606
502
379
365
354
244
244
0.98
0.68
0.98
0.98
0.98
0.98
0.98
098
0.98
0.98
0.99
0.99
0.99
0.015
1.0138
1.013
2.12
0.973
1.060
1.000
1.000
1.03
1.03
1.01
1.01
1.02
.995
1.025
1.025
1.03
1.01
122,c00
86,500
44,000
35,200
28,500
24,750
23,200
21,500
20,325
16,050
10,930
8,460
6,520
5,240
3,135
2,795
2,080
1,330
1,237
1,139
868
0
780
430
612
612
§11
378
367
356
254
246
17 Nov.
18 Nov.
1200
0955
1,000
2,000
173
159
0.985
0.980
171
156
on
ae
°
ave
Date
o
-
Operating voltage, 1250
1
1
1
1
1
1
1
1
1
1
2
2
2
3
4
4
5
6
7
7
8
9
9
9
10
10
11
12
13
13
15
16
favo y
/
v
i
x
246 sec
532 sec
Net
244
231
ae ste tent ener ons
a
92
racea cone
Remarks
@ = 30.4 dis/min
a = 0.70 dia/min
a@ = 66.0 dis/min
a= 0.0 dis/min
@ « 0.43 dis/min
@ = 0.00 dis/min
i
i
a@ = 0.00 dis/min
a = 0.00 dis/min
i
‘
‘
a = 0.00 dis/min
@ « 0.00 dis/min
Scaler 4B
en
eee in
eB EP A a UE hots
| P "ik POSST et
f ME AY Ms SAN Ue VANE sa ve /
:
{
eyes
,
‘
bh
we
ve J .