Patent ID: 11887746
Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 17:
18. A radiation logging tool, comprising:
a tool housing;
a compact generator disposed within the tool housing and configured to produce radiation;
a power supply operatively coupled to the compact generator;
control circuitry operatively coupled to the compact generator;
wherein the compact generator comprises:
a generator vacuum tube comprising:
a source configured to generate charged particles, and
a target onto which the charged particles are directed;

a high voltage supply comprising a high voltage multiplier ladder located radially adjacent to the generator vacuum tube, wherein the high voltage multiplier ladder extends in a first axial direction from a first axial position within the tool housing and radially adjacent to the generator vacuum tube, past an axial end of the generator vacuum tube, and to a second axial position within the tool housing, the high voltage supply being configured to apply a high voltage between the source and the target to accelerate the charged particles to a predetermined energy level; and
an electrical coupling disposed within the tool housing and comprising a high voltage turn-around that receives an output voltage, having a first absolute value, of the high voltage supply from the high voltage multiplier ladder extending in the first axial direction and provides the output voltage, having a second absolute value less than or equal to the first absolute value, to the target of the generator vacuum tube in a second axial direction, opposite the first axial direction.