Golden DOMs Status and analysis plan Shigeru Yoshida

Golden. DOMs Status and analysis plan Shigeru Yoshida (for Hiroko M) Dept. of Physics, Chiba University.

The Golden DOM people Chiba Hiroko, Tsuyoshi, Mina, Shigeru UW-Madison Kael, Mark, Aya, Kotoyo PSU Carsten

2 D PMT Scan PMT/DOM Absolute Efficiency N 2 DOM 2 D Scan N 2 laser

Chamber and DAQ ATTENUATOR Temp monitor Pressure meter

■ Calibration of PMTs and Digital Optical Modules (DOMs) PMT DOM metal cage HV board Flasher board Main board 10 inch PMT Hamamatsu Chiba Univ. Optical gel Wisconsin Univ. Chiba Univ. South Pole Ø makes all PMTs Ø Normal check: Ø assembles DOMs Ø Golden DOMs: check (1/10) DOMs (1/80) q Linearity of the PMT gain Ø check all DOMs q 2 D sensitivity scan q dark noise rate q Absolute calibration (under low temperature) q Linearity of the DOM gain q charge resolution q dark noise rate Ø Golden PMTs: PMTs (1/60) q component check normal check + q cold reboot q 2 D sensitivity scan q communication test q Absolute calibration

Hakkenden (“eight” dog) Warriors…. ? DOM name PMT # Sosuke_Inukawa : TA 1181 --failed Dosetsu_Inuyama : TA 1069 Shino_Inuzuka : TA 1052 Genpachi_Inukai : TA 1167 Kobungo_Inuta : TA 1062 Keno_Inuzaka : TA 1056 --failed Shinbei_Inue : TA 1059 Daikaku_Inuyama : TA 1176 --failed

GDOM absolute calibration data Shinbei_Inue Local Coincidence with a sync signal of N 2 laser!!

GDOM absolute calibration data Genpachi_Inukai Local Coincidence with a sync signal of N 2 laser!!

GDOM 2 D scan data Shinbei_Inue DOM PMT

GDOM 2 D scan data Shino_Inuzuka DOM PMT

String 39 GDOM Flasher data ATWD time window ATWD S 39 -53 FADC S 21 -55 flasher ATWD S 39 -55 FADC S 39 -56 X-axis in [ns] y-axis in [m. V] ATWD FADC By Aya (UW-Madison)

Ice. Ray. Trace Simulation By Kotoyo (UW-Madison)

Ice. Ray. Trace Simulation By Kotoyo (UW-Madison)

Analysis Plan String-39 Flasher/SC ROMEO-GPMT DOMIMANT(Geant 4) Energy Calibration (Hole)Ice Ice. Ray. Trace

Golden DOM production for PY 05 8 Golden PMTs @ Chiba May DOM Assembly/FAT @ UW-Madison August <11 Golden DOMs @ Chiba 3 left-over GPMTs @ UW-Madison Nov South Pole !!