Heavy element mass spectroscopy with the Berkeley 88-inch cyclotron

Abstract

A method is discussed for using the Berkeley 88-Inch Cyclotron as a mass sectrometer for all atomic masses. Low background radiation permits the detection of trace elements with a sensit\vity of 1 part in lQS to 10 17 a mass accuracy of 6m/m = 5.8 x lo-5, and an abundance accuracy of a few percent. These results are based in part on mass scans using an ion source containing rare earth ores.

Radiocarbon dating with a cyclotron

“…Until it is installed, the precision of our 14 c experiments is limited by this background subtraction. For measurements we have made with 10 Be an·d 36 c1 no similar background exists.…”