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ANP PROJECT QUARTERLY PROGRESS REPORT
DETECTOR
Boron
Cobalt
Manganese
____I
DETECTOR
TABLE 6.3. EFFECT OF THERMAL SHIELDS ON EXTERIOR ACTIVATION
POSITION
Side
End
No ducts
Side
End
End
Side
SHIELD
-T
RATIO MEASURED
Bare to Cd covered
Bare to R covered
Cd covered to B covered
Bare to Cd covered
Bare to B covered
Cd covered to B covered
Bare tQ Cd covered
Bare to B covered
Cd covered to B covered
Bare to B covered
Bare to €3 covered
Bare to B covered
B backed to B covered
B backed to B covered
TABLE 6.4. RATIO OF EXTERIOR ACTIVATION AT
78
DETECTOR
Boron
Cobalt
Man gan ese
___l_l__
SHIELD
None
Cd cover
B cover
None
B cover
B backed
B cover
-_I_.._
RATIO MEASURED
Side to end
Side to end
Side to end
Side to end
Side to end
Side to end
Sideto end
RATIO MEASUElRED
In Plain Water
57
2 50
4.4
41
2 30
5.6
40
180
4.4
Boron None
Plain to borated
1.4
Cd cover Pl ain to borated
0.64
B cover Plain to borated
0.73
39
RATIO OF COUNTS
RATIO OF COUNTS
In Borated Water
26
130
5.0
26
150
5.7
5 to 15
4 to 100
;IDE TO EXTERIOR ACTIVATION AT END
In Plain Water
3.4
2. 5
3. 1
Plain to borated 0.73
RATIO OF COUNTS
22
11
In Borated later
2.9
2.9
3.3
2.4 f 1
3
1.8
3.7
At Side of Duct I At End of Duct
1.2
0.75
0.77
_ _ ~ -