Kujala, Vincent Anthony2024-08-142024-08-1419911991https://hdl.handle.net/1828/18505A thin cylindrical drift chamber with helical cathode strips for measuring the z coordinate of charged particle tracks is described. The motivations for adding the chamber to the existing detector of Brookhaven experiment E787 are discussed. The results of a Monte Carlo study of the momentum resolution of the detector with the chamber are presented. The methods of construction and calibration are detailed. Results from a positioning and position resolution study using cosmic ray data are presented. Results from a momentum resolution study using the mono-energetic kaon decays, K+ → π+ π- and K+→µ+vµ, are presented and compared with Monte Carlo results.77 pagesAvailable to the World Wide WebThesis