Bolometric device with receiving cavity for measuring the power of a beam of high frequency microwaves and process for coating the internal surface of said cavity

• Main Authors: Spinicchia, Nicolò, Bruschi, Alessandro, Cirant, Sante Giovanni, Muzzini, Valerio, Nardone, Antonio
• Format: Patent
• Language: English
• Published: 08.09.2009

The present invention describes a bolometric device with receiving cavity for measuring a beam of high frequency microwaves, comprising a hollow body with receiving cavity having an opening for the entrance of said beam of high frequency microwaves in said receiving cavity, a diverging mirror located in the lower part of said cavity for reflecting said beam of microwaves on an absorbent coating material applied on the internal surface of the hollow body, a cooling circuit for transferring the thermal energy accumulated on the absorbent coating material and a circuit for measuring the power of the beam of high frequency microwaves entering the hollow body. Said absorbent coating material consists of boron carbide. In addition a procedure is described for coating with an absorbent material the internal surface of a hollow body being part of the aforementioned device for measuring a beam of high frequency microwaves (FIG. ).