Improvements to Existing Jefferson Lab Wire Scanners

This paper details hardware and protocol changes for selected CEBAF wire scanners to improve the quality of beam profile measurement and determination of beam properties. A photo-multiplier tube based data path improves noise floor and dynamic range, and a new scan protocol, more efficiently interleaving wire motion and beam transport parameter changes, reduces dead time. Presented will be the status of the design, prototype results and a comprehensive upgrade plan.