Abstract

The BABAR experiment has been using two polycrystalline chemical-vapor-deposition (pCVD) diamonds for radiation monitoring for nearly 2 years. In July 2005, an additional 12 diamond based radiation sensors will be installed inside the BABAR detector. These diamonds will take over the function of 12 silicon PIN-diodes that are currently used in the radiation protection and monitoring system. We describe our highly successful experience with using pCVD diamond radiation sensors in a high energy physics experiment. We also detail our findings of persistent signal currents and magnetically suppressed erratic dark currents in pCVD diamond based radiation sensors.

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