Probe measurements on the P-4 system in single cathode operation.

Abstract

In this report the plasma of the P-4 system in single-cathode operation is examined by probe techniques and compared with data taken previously in two-cathode operation. Although no radical differences were discovered, the data as summarized in Tables 1 and 2 and Figs. 7 through 12 confirms the visual observation that the plasma column is more sharply defined in single-cathode operation.