2. Hardcopies of the ZDO signalshape + Gates - From that plot one could assume that one does not gain more information with longer gates.
3. ZDO outer ring Detector 1 - double structure in T vs E plots. If one plots delta E vs E without a cut on time, no resolution could be seen. With a cut time>0 the "resolution" became better and one could distinguish between protons and alphas. Besides that two out of three lines with high delta E and low E signal disappear by the time cut.
4. Delta E vs E for Run0001 - One could see particle id up to Oxygen. This may be due to the higher statistics of the run or the different gates (1500 ns long gate, 80 ns difference between long and short gate). The punchthrough line in the spetra is not quite clear because one would expect the alpha punchthrough at 4 times the proton punchthrough (quenching neglected). Besides that one might gain some additional information about the strange lines in the spectra (high E low delta E signal and vice versa) by setting cuts on neighbouring detectors. The loss of punchthrough protons by the discriminator thresholds can be surely neglected.
5. Detector overview ZDO
6. Hardcopies of the Startdetector signalshape for different thresholds - In addition to the noise and coincident signals in the tubes sometimes there were very high signals (ca. 10 V) which were not coincident in both tubes. These might have been direct hits of the tubes. The tubes had to work in the noise, which means that the signal was actually lower than the noise and could only be seen and discriminated if one required a coincidence between both tubes.
7. Time resolution of the start foil - One could see a double peak in the 50 mu and a shoulder peak in the 10 mu foil after a very strict cut on the pulseheight (position cut). A gauss fit on the higher peak gave the following results: 169 ps for 50 mu and 200 ps for 10 mu. The very low signal amplitude in the start foil is by now not understood.
2. Multiplicity distribution
3. Blow up of the proton region
4. HV variation