1. October 20, 2008 Rolf Nahnhauer DESY-PROJECT IceCube Digital Optical Module Production

2. October 20, 2008 Rolf Nahnhauer PROJEKT-ABLAUF

3. October 20, 2008 Rolf Nahnhauer Dr. H. Waldmann (bis 08/07) 100% Dr. J. Berdermann ( postdoc) 65% xx S. Henze J. Pieper S. Ladegast 2932 T€ 4675 T€ 1243 T€

4. October 20, 2008 Rolf Nahnhauer OMP-Projekt Investitionen #OM 605 620 676 512 2750 257 480 233 1190 2932

5. October 20, 2008 Rolf Nahnhauer OMP-Projekt Personalbedarf Weeks kEuro Produktion 07 314.8 Physiker 48 62.8 Postdoc 33 33.6 Ingenieure 24 26.4 Techniker/Werkstaetten 96 192.0 Produktion 06 222.8 Physiker 35 38.5 Postdoc 23 24.5 Ingenieure 18 19.8 Techniker/Werkstaetten 70 140.0 Produktion 08 193.6 Physiker 12 15.7 Postdoc 32 32.4 Ingenieure 16 17.5 Techniker/Werkstaetten 64 128.0 1243 xx

6. October 20, 2008 Rolf Nahnhauer DOM-Production 2004-2008 Year DOMs produced DOMs OK  final DOMs shipped 200460450.7528 20051601590.99160 20062572550.99224 20074804770.99480 20082332320.99276 ∑119011680.981168 only ~1% of DOMs were cannibalized – goal was 5% or better good components are used in next years production

7. October 20, 2008 Rolf Nahnhauer 2004 DOM TESTING + USAGE timeloadgoodbadcomment FAT120.9.-5.10.04252053 gel, 1 MB, 1 HV FAT24.11.-17.11.042181313 gel, 1 MB FAT310.1.-20.1.05201731 MB,3 FB,1 HV FAT424.2.-7.3.05880use 5 CAEN HV locationnumberqualitypurpose Pole42gooddeploy DFL3goodstandard Madison8badCheck Dortmund1badHV-tests -6badcannibalize Production efficiency:  P 2004 = 75 % Wanted:  P = 95 %

8. October 20, 2008 Rolf Nahnhauer 2005 DOM TESTING Timeloadgoodbad  FAT FAT510.06.-27.06.5137140.73 FAT612.07.-8.0854 4950.91 FAT7 29.08.-12.0957 47100.82 FAT8 14.9.-30.0926 2060.77 FAT914.11.-01.126601.00 *) in all cases +3 permanent DOM’s from FAT3 for comparison FAT5 FAT6 FAT7 FAT8 FAT9

9. October 20, 2008 Rolf Nahnhauer 2006 DOM TESTING timeloadgoodbad  FAT FAT1019.06- 30.065746110.81 FAT1119.07-04.08575070.88 FAT1209.08-25.08575340.93 FAT1305.09-20.09514830.94 FAT1412.10-27.10554960.89 FAT1527.10-15.11141220.86 FAT10 FAT11 FAT12 FAT13 FAT14 FAT15

10. October 20, 2008 Rolf Nahnhauer 2007 DOM TESTING timeloadgoodbad  FAT FAT1629.01.-14.02.575070.88 FAT1728.02.-17.03.574980.86 FAT1822.03-11.04.312830.90 FAT1919.04.-07.05.575070.88 FAT2001.06.-20.06.575250.91 FAT2112.07.-24.07.575250.91 FAT2210.08.-15.09.574890.84 FAT2325.10.-14.11.393360.85 FAT2421.11.-06.12.574890.84

11. October 20, 2008 Rolf Nahnhauer 2008 DOM TESTING timeloadgoodbad  FAT FAT2509.01.-24.01.574890.84 FAT2620.02.-10.03.574980.86 FAT2728.03.-14.04.575070.88 FAT2814.05.-30.05.574980.86 FAT2912.06.-01.075747100.82 FAT3007.07.-23.07.574980.86 FAT3114.08.-31.08.221930.86 During all FATS only small problems with many different components Solution :  repair/replace, re- test

12. October 20, 2008 Rolf Nahnhauer Summary DOM mass production was running without problems Production team was well trained but finally “diffusing” Delivery of components mostly smooth Storage space sufficient but at the limit, many transports between Zeuthen and Wildau necessary Many small problems contribute to test failure rate Total failure rate after rework about 1%, better than expected DESY finished DOM production in autumn 2008  well in time  well in cost estimations