TABLE 4-6. GAMMA STANDARD SOLUTIONS
Isotope
keV
24) an
60
133 8
1338p6
1525
1876.
6065
40,
88y
22Ne
81, 161, 273
303, 356
122
662
1173, 1332
1461
898, 1836
511
Solution Activity
Decay Constant
2,434
5/31/74
4.38x 10°
13,928
430,000
13,159
2,904
144,200
35,520
14,481
T/1/76
4/15/77
5/1/76
7/1/16
2/19/79
5/18/77
9/1/76
1.76 x 10"
1.355 x 107
6.324x 10°
3.621 x 10+
5.414x 10/8
6.418 x 10°
7.30 x 107
dpm/ml_@ Date
13,928
(1/Day)
7/1/76
1.76 x 107
TABLE 4-7. SAMPLE COUNTING GEOMETRIES
Distance from Detector to
Center of Sample
Fe
BD
2em
Large Petri Dish, 100 ee, (LPD)
3em
oe
Large Petri Dish, 100 ec, (LPD)
Double Bagged Bulk Sample
mm
lem
Cottage Cheese Container, 473 ec, (CCC)
ony
Large Petri Dish, 100 ec, (LPD)
BH
Sample Geometry
Contact
Small Petri Dish, 10 ec, (SPD) With Planehet
Contact
Marinelli Beaker 1000 ee
Contact
Marinelli Beaker 500 ec
Contact
Large Petri Dish, 100 ce, (LPD)
Large Petri Dish, 100 ec, (LPD)
Contact
1.5em
ll
Large Petri Dish, 100 ee, (LPD)
2.5 em
12
Small Petri Dish, 10 ec, (SPD)
2.0 em
13
Small Petri Dish, 10 ec, (SPD)
15em
14
Small Petri Dish, 10 ec, (SPD)
2.0 em
1s
Small Petri Dish, 10 ee, (SPD)
3.0 em
133
6 em