164
C. H. Pyeon
Fig. 6.8 Measured pulsed
heights of 241 Am and 235 U
fission reaction rates in
HEU-PE zone (15, K;
Fig. 6.4b) at critical state
(Ref. [1])
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
10
0
10
1
10
2
10
3
10
4
10
5
10
6
10
7
Pulsed height [V]
Counts [Arbitrary units]
241 Am
235 U
235 U (10 g)
241 Am
Fig. 6.9 Measured γ-ray
spectrum of 237 Np capture
reaction rates in HEU-Pb
zone (15, O; Fig. 6.4a) at
critical state (Ref. [1])
960
980
1000
1020
1040
1400
1600
1800
2000
2200
2400
2600
Energy [keV]
Counts [Arbitrary units]
984.45 keV
1028.53 keV
237 Np
1025.87 keV
Fig. 6.10 Measured γ-ray
spectrum of 237 Np capture
reaction rates in HEU-PE
zone (15, K; Fig. 6.4b) at
critical state (Ref. [1])
960
980
1000
1020
1040
400
600
800
1000
1200
1400
1600
1800
Energy [keV]
Counts [Arbitrary units]
984.45 keV
1028.53 keV
237 Np
1025.87 keV