SETT OCH ANORDNING FOR MATNING OCH REGLERING AV ETT NEUTRONALSTRANDE ROR VID UNDERSOKNING AV MARKBORRHAL

摘要

Means and method for energizing and regulating a neutron generator tube having a target, an ion source and a replenisher includes providing a negative high voltage to the target and monitoring the target current. A constant current from a constant current source is divided into a shunt current and a replenisher current in accordance with the target current. The replenisher current is applied to the replenisher in a neutron generator tube so as to control the neutron output in accordance with the target current.