
Applications of Tagged Neutron Beams
272
Figure 7.21 Package of 5kg of TNT in the car.
90
80
70
60
50
40
30
10
20
0
01
Oxygen
Carbon
Nitrogen
TNT
Background
Figure 7.22 Gamma ray spectra from irradiation of explosive TNT mass 5kg, volume
31 × 12 × 15cm
3
(target in), and background (target out): measurement time 2651 s, total
number of tagged neutrons 6 × 10
7
, and neutron generator angle 8°.