Oscillating heat pipe based energy beam profiler and calorimeter

An energy beam profiler and calorimeter (EPC) comprising:

• a target board having a front surface and a back surface, wherein the target board is configured to receive an impinging energy beam at the front surface of the target board;
• a first plurality of oscillating heat pipes arranged as columns on a middle plate;
• a second plurality of oscillating heat pipes arranged as rows on the middle plate;
• a plurality of column probes in thermal communication with the first plurality of oscillating heat pipes and
• a plurality of row probes in thermal communication with the second plurality of oscillating heat pipes,
• wherein the middle plate is adjacent to and in thermal communication with the back surface of the target board.

A method for measuring a calorimetry and beam profile of an energy beam with an energy beam profiler and calorimeter (EPC), the method comprising:

• receiving an impinging energy beam at a target point of a front surface of a target board, wherein the impinging energy beam produces heat at the front surface at the target point;
• conducting, as a conducted heat, the heat at the target point from the front surface to a back surface of the target board;
• transferring the conducted heat to a first plurality of oscillating heat pipes arranged as columns and a second plurality of oscillating heat pipes arranged as rows;
• measuring a plurality of temperatures of the columns with a plurality of column probes;
• measuring a plurality of temperatures of the rows with a plurality of row probes;
• and
• determining the calorimetry and beam profile of the energy beam.