부산대학교 도서관

A challenge for TW-class accelerators, such as Sandia's Z machine [1], is current diversion via electrode plasma formation, expansion, and gap closure in the Magnetically Insulated Transmission Lines (MITLs) [2]. To measure this electrode plasma density, a Dispersion Interferometer (DI) diagnostic has been developed with a sensitivity of $\sim 1x1014 {\mathrm{e}-1}/{\text{cm}^{\wedge} 2}$ [3]. Discussed are the required optical and electrical system upgrades for this diagnostic to make density measurements of the millimeter scale sheaths generated during the $\sim 140$ ns rise times of the electrode plasma formation experiments on Sandia's 650 kA Mykonos driver [4].