7.3 Contamination Probes LB 1231 and LB 1233
Two different hand probes as proportional counters are availa-
ble for contamination measurements:
1. LB 1231 with beta-gamma-xenon detector LB 6357
2. LB 1233 with alpha-beta-P10 gas flow counter tubes LB
6359
The LB 1231 probe with its entrance window made of a very
thin titanium foil can only measure beta/gamma radiation, the
LB 1233 with its very thin entrance window made of a Mylar foil
can in addition measure alpha radiation.
Design of the hand probes
Protective case with exchangeable detector:
The proportional counter tube is fixed to the protective case with
handle (hood) by means of snap locks (Figure 7.3).
Figure 7.3: Probe LB1231
The hood incorporates a small printed circuit board (Figure 7.4)
for coding the connected detector.
To Next Page
Loading...
