Radio frequency voltage temperature stabilization
View Patent ↗A temperature-regulated radio frequency management system for use in a mass spectrometer is described. The temperature-regulated radio frequency management system having one or more radio frequency components disposed in a vacuum environment. The temperature-regulated radio frequency management system including a radio frequency detection circuit configured to provide feedback indicative of a radio frequency signal in one or more of the radio frequency components. In addition, the temperature-regulated radio frequency management system includes a temperature regulation circuit disposed in the vacuum environment and configured to reduce temperature-induced variations in the detection circuit.
1. A radio frequency voltage detection system for a mass spectrometer, said radio frequency voltage detection system comprising:
a board configured to fit at least a portion of said board inside a vacuum feedthrough of a vacuum chamber of said mass spectrometer;
a radio frequency detector positioned on said board, said radio frequency detector configured to generate a detect signal upon detection of a radio frequency signal;
a rectifier positioned on said board, said rectifier coupled with said radio frequency detector, said rectifier configured to generate a rectified signal corresponding to said detect signal;
a heating element positioned on said board, configured to generate a heat flow; and
a temperature regulator coupled with said heating element, said temperature regulator configured to measure a temperature of said board and configured to adjust said heat flow generated by said heating element to maintain a predetermined temperature.
2. The radio frequency voltage detection system of claim 1 further comprising a mold formed around a portion of said board.
3. The radio frequency voltage detection system of claim 2 , wherein said mold formed around a portion of said board is configured to fit inside said vacuum feed through.
4. The radio frequency voltage detection system of claim 1 , wherein said radio frequency detector is a capacitor.
5. The radio frequency voltage detection system of claim 4 , wherein said capacitor is a ceramic capacitor.
6. The radio frequency voltage detection system of claim 1 , wherein said board includes a metal layer and said heating element is configured to generate said heat flow in said metal layer .
7. The radio frequency voltage detection system of claim 1 is configured to provide a feedback signal corresponding to said radio frequency voltage to a feedback system for maintaining said radio frequency voltage at a predetermined voltage.