1. Report on E-165 Steve Schnetzer MCC Meeting June 28

2. Last 24 Hours Completed high intensity running Checked linearity of PMT’s PMT’s at low gain x 10 amp complete set of runs (0,2,4,6,8,10,12,14 r.l.) Started lateral shower profile measurement Diamond detectors Removed optical box 9 measurements in x 4(3) measurements in z 4 targets (2,6,10,14 r.l)

3. Diamond Shower Profile Plot agreement with Geant calculation distance from beam axis (cm)

4. Diamond Linearity good linearity 10 -7 C of charge deposited ! 1 A over 100 ns

5. Diamond Linearity 10 times more charge with 6 r.l. still good linearity charge density lower study density effect by taking data with different beam spot size

6. Next 24 Hours Continue lateral shower profile measurement Install and debug ionization chamber