| 摘要 |
<p>. A pulsed neutron generator for well logging is provided having a resistor connected between the anode and cathode. In an alternative embodiment, one secondary coil of a pulsing transformer is connected in series with a resistor between the anode and cathode. In an alternative embodiment of a corona regulator in series with the collector-emitter of a transistor is connected between the cathode and anode of the neutron source and the base drive to the transmitter is provided by a light-responsive solar cell activatable by an external lamp. Circuitry is provided for utilizing the various neutron sources. -1a-</p> |
