| 摘要 |
Proportional counters for thermal neutron counting are described. In one embodiment, a proportional counter includes a lead wire, a coil spring and an anode wire. The coil spring includes two opposite ends and a substantially cylindrical opening extending between the two ends. The lead wire at least partially extends into the spring opening so that one end of the lead wire is within the spring opening. One end of the spring is secured to the lead wire, and the other end of the spring is secured to the anode wire.
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