Method for Eliminating Omegatron Radial Field Errors or for Direct Measurement of Mass Ratios

Abstract

An omegatron having two pairs of ion‐accelerating plates instead of one and using resonance absorption detection has been used successfully to obtain simultaneous cyclotron resonances of two different ion species in the same field. When used in conjunction with a nuclear resonance probe, the method effectively eliminates errors due to perturbing radial electric fields in the omegatron; alternatively, if radial electric fields are considered negligible, the method permits the direct measurement of mass ratios.