From Thomas.Hott@cern.ch Thu Dec 15 12:03:39 2005 Date: Wed, 3 Nov 2004 17:57:33 +0100 From: Thomas Hott To: atlas-gen@listbox4.cern.ch Subject: LAr arrived in UX-15                 Dear Colleagues, I am happy to inform you that the LAr Barrel Calorimeter was successfully transported to Point-1 and installed in UX-15 during the course of the last 10 days. The only observed problem was due to a problem of the special trailer when leaving Bdg. 180, causing for a short moment accelerations that slightly exceeded the values that have been specified for this transport. As a result both EM Wheels moved longitudinally inside the Cryostat - one ca. 0.2 mm and the other ca. 0.5 mm. Starting next week the LAr community will have a close look to the EM detectors to find out if there is any internal damage. Entering SX-1 and unloading the LAr cryostat went very smoothly as well as the lowering into UX-15. Difficult moments have been when the Cryostat was lifted out of its transport cradle and when being inserted into the Tile's lower half. However, there was nothing damaged neither on the Cryostat nor on the Tile. The Cryostat is meanwhile aligned relative to the Tile axis and its full load was applied to its final supports. The conjoint assembly proved to be stable and an immediate survey delivered excellent alignment results (see below). I would like to congratulate and express my sincere thanks to all people that contributed to this important achievement - in equal measure to all those who have been involved so heavily in the very last time as well as to all those who have contributed over the last years to the planning.                 Many thanks - Well done!                                                                                         Thomas P.S.    Photos by Nikolai Topilin P.P.S.   Preliminary Survey Results: - Many thanks to the very supportive survey team! - X: LAr central axis is very parallel to Tile central axis with an offset off a bit less than +1 mm Z: The LAr centre is shifted about 1 mm in direction C relative to Tile centre Horizontility: Tilt in X-Y Plane: Less than 1 mm over 5.5 m Tilt in Y-Z Plane: Less than 3 mm over 7 m - C Side slightly higher than A Side Both final Y-Position and Tilt in Y-Z Plane will be fine adjusted once the Tile barrel is completed (Dec. 04 / Jan. 05) -> Final survey results can be communicated by the end of this week. -- Dr. Thomas Hott                         E-Mail:        Thomas.Hott@cern.ch PH Department                         Mobile Phone:  +41 76 487 49 26 CERN                                     Office:        Bdg 40-1D-01 CH-1211 Geneva 23                    Phone:         +41 22 767 12 32 Switzerland                              Fax:           +41 22 767 83 50 [ Part 2, Image/JPEG 49KB. ] [ Unable to print this part. ] [ Part 3, Image/JPEG 67KB. ] [ Unable to print this part. ] [ Part 4, Image/JPEG 71KB. ] [ Unable to print this part. ] [ Part 5, Image/JPEG 43KB. ] [ Unable to print this part. ] [ Part 6, Image/JPEG 93KB. ] [ Unable to print this part. ] [ Part 7, Image/JPEG 84KB. ] [ Unable to print this part. ]