Abstract
An emission current control circuit for ion cyclotron resonance spectrometers has been constructed which maintains a constant beam current in the range 10(-11)-10(-6) A with pulsed grid modulation. It regulates emission currents by automatically adjusting grid bias voltages with reference to a feedback signal. A solid state optical coupler is employed to transmit the feedback signal to a grid biasing circuit having a floating common voltage to accelerate electrons. Control to better than 0.1%/h is possible at any emission current between 10(-10) and 10(-6) A, and control to 0.3%/h at 10(-11) A.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
