New optics runs are being taken. Plots from optics target is attached to this log. Run type: LHRS sieved run. p=0% (1.1600GeV). PREX optics target. Raster on/off * elastic peak is clear shown at ~0% * Sieve is mostly clear for each carbon foil * two carbon foils are seen (central, central + 7.5cm upstream). When raster increase to as large as 7x7MCC, edge of Al dummy target is also in beam. * Vertex reonstruction need to be improved to see clear foils in 1D vz plot. However, foils could be identified through 2D plots.
Raster off run 1166: VDC hit; tg_th:tg_ph; dp and Vz (which is need further work)
Raster off run 1166: Separation of carbon foils in 2D plots. Each strip is one foil. 4 combination of 2D plots are generated
Raster off run 1166: 5th and 6th plot are Sieve for each carbon foil.
Raster on run 1163. An additional strip is shown on 2D plot showing hit on another foil at large raster (Al dummy, cross checked with spot++).