A novel method for electron energy measurement: Cyclotron Radiation Emission Spectroscopy

Abstract

A prototype spectrometer - the first of its kind - has been constructed at the University of Washington to demonstrate a new technique for β-decay studies called Cyclotron Radiation Emission Spectroscopy (CRES). The conversion spectrum of 83mKr has been measured to a precision of 25 eV. Conclusive observation of the K , L, M , and N series electrons demonstrates the range and generality of the technique. Future upgrades to the prototype are suggested, with an outlook toward a detector resolution of 1 eV.