TRANSPORT of ICARUS from LNGS to CERN Alberto Scaramelli INFN-Milano Following the meeting at LNGS on 11-12/9 118/09/2014A. Scaramelli

T600 Decommissioning lPlant disassembly 1.Present situation 2.Next step lTPCs transport to CERN 1.Technical solution 2.Preparation in LNGS 3.Actions and Responsabilies lTime schedule 1. Possible Scenarios Slide: 2A. Scaramelli

T600 Decommissioning: a lot of work done From July-August 2013: T600 emptying + warming ‐ up From Sept. 2013, still ongoing: Disassembling; Dismantling Many components already at CERN From Sept. 2013: Design, order, construction of the Transport Frames From Mai 2014: Removal of Opera Barrack & Warp clean room from Hall B Slide: 3A. Scaramelli

Hall-B was an extremely crowded area Slide: 4 You must pass through this leftover space ! A. Scaramelli

Next steps lThermal insulation & cooling screen will be dismantled lSome mechanical obstacle in front of the vessels will be removed the two cold vessels can be opened lIn Tir Gallery some obstacles will be removed Slide: 5A. Scaramelli

Hall B Virtual Top View 6 A. Scaramelli

Results of the Survey 7 lAccording to the measurements made in the past and confirmed in the recent survey, the occupancy and the present layout of the Hall B permit to handle the following max. dimensions and weight : Dimensions 3.90m x 4m x 20m - Weight 40 t lSuch dimensions are fully compatible with the designed Transport Frame. In particular the max. required weight is compatible with the hall B crane capacity. Unfortunately they are presently incompatible with the dimensions of the original cold vessels, which must be therefore dismantled and reconstructed elsewhere. A. Scaramelli

The Transport Frame 19.9m Long 3.815m Large 4m High Total Weight 40t TPC included 8 18/09/2014 A. Scaramelli

TPC Extraction & Transport 9 A. Scaramelli

Object to be transported 4 lifting points (must be dismounted) reducing the height of the box Length of the lifting sling 7m 10 18/09/2014 A. Scaramelli

Present situation in Hall B 11 Restriction of passage 4.7m in front of the XENON tank Transport Frame Exit route from the salle B 18/09/2014 A. Scaramelli

The trailer used for the transport lTransport company : ALIANI lLow bed truck /09/2014 A. Scaramelli

The trailer used for the transport 13 18/09/2014 A. Scaramelli

Methodologies for the loading lSee 3D simulation 14 18/09/2014 A. Scaramelli

Exit route 15 18/09/2014 A. Scaramelli

To be removed in Tir Gallery 16 18/09/2014 A. Scaramelli

Some actions, dates and responsibilities 1 lFrom now on Chiara V. blows clean air inside the cryostat to remove all Argon. The Lab has to find a technical solution. lBy 7 October, Chiara V. opens the welds and unscrew some bolts protecting with plastic the front face. l9 October the box arrives from Spain and by the 10 th it will be pre-positioned in front of the TPC (J.L.Grenard) during the night 9-10 Oct). l13 th October the door (towards ICARUS) of the box will be removed (F.Noto procedure) and the box opening is protected with plastic to avoid dust. l13 th October Claudio M. put in place the plastic tunnel between the cryostat and the box. All electrical services enter there. l14 th Oct – 7 th November: Pavia group will install extraction tools and insert TPC into the box. Slide: 17A. Scaramelli

Some actions & dates 2 l7 th November the Transport Frame will be closed, ready for moving. l10 Th November the Transport Frame will be out of the GS Lab., traveling to CERN: the truck enters into the tunnel in the early morning and is assembled inside the Hall B, leaving GS in the afternoon. l13 th November in the night, the second TF arrives and is positioned in front of the cryostat. Then we have to decide what next, because it is very difficult to be ready for a second transport to CERN for the 10 th of December. Slide: 18A. Scaramelli

Second Transport Frame: scenario 1 lWe give priority to insert the first TPC into the clean room at CERN lWe have to move the insertion tools from GS to CERN together with the Pavia Tecs lInsertion week of 24 th November l4 th December tools and Tecs back in GS and insertion work into the 2 TF can restart lTransport to CERN probably at the end of January or February Slide: 19A. Scaramelli

Second Transport Frame: scenario 2 lWe give priority to insert the second TPC into the TF in GS lAll insertion operation between 17 th Nov and 9 th December lTransport leaves GS to CERN the 10 th. Last possible date. Or leaves end of January lFirst TPC insertion into the clean room at CERN in the week of the 15 th December or in January. Slide: 20A. Scaramelli

Actions & Responsible Persons lLNGS to organize the argon flushing of the ICARUS detector before any operation in October lCERN to confirm with the IRMA-GRU the transport dates lCERN to confirm the transport with the firm Allieni lJ.L. Grenard to provide to GS Lab the list of tools and people he will bring, with all necessary certificates lF. Noto to provide a written procedure for the removal of the box doors lC. Montanari to to provide a written procedure for the extraction and insertion procedure, with all the tools lM.Nessi to order the missing support lCh.Zarra to start the procedure to remove all material for the entrance and exit of the trucks from the bypass towards L’Aquila (2 dewars, guardian barrack, various small material, several lights and signs) lCh. Zarra to organize the removal of the Lab signs inside the freeway tunnel lCh. Zarra to write a letter to the freeway authorities informing of the need for such special transports and agree on the dates and operations lC. Montanari to inform C.h Zarra of the electrical power needs during operation Slide: 21A. Scaramelli

At CERN m 10m 7m Clean room for TPC assembly lA bldg. (185) is being adapted and dedicated to assemble the TPCs in the new cold vessels. A. Scaramelli

Conclusions Slide: 23 lDisassembly of a complex plant as ICARUS and the removal of the main components in such a difficult environment represented very hard work, demanding appropriate procedures/organisation, and care for safety. lWe have experienced some significant delays, essentially due both to the administrative procedures and to the dense crowding of hall B.  A lot of work has already been completed.  But still lots of work remain to be done…. lHowever the transport of the TPCs out of the LNGS will be performed without major interferences on the critical path of the future overhauling program. A. Scaramelli