Minutes from target meeting held August 25 2005 in 892-1-B09 These minutes are available also from: http://wwwcompass.cern.ch/compass/detector/target/Minutes/2005/ a) Alain showed Saclay planning for the new superconducting magnet. The cool down starts on September 12 and the testing of the magnet on September 26. Tests include field mapping, trimming of the field homogeneity and field rotations. After the tests 10 days of warming up to room temperature is needed before the magnet can be shipped to CERN. This gives shipping date of November 25. The power supply racks can be send to CERN after the tests at Saclay have finished. Thus the installation of the racks and cabling can start on November 16. b) Vladimir said that the target platform modifications and re-enforcements are going to be started in the beginning of October. The welding work is expected to take 2 days. New mounting system for SciFi 3 is under consideration. c) Klaus said that LHe will be available from the second week after winter shut down around January 12 - 14 2006. LN2 is available already in November. d) Fabrice said that 20 - 25 l/h of LHe is needed for the magnet in normal operation. During the precooling from 100 K to 4 K 35 - 40 l/h with total amount of 3000 l. In magnet quench 300 l of LHe is evaporated. Norihiro said that the dilution cryostat consumes 20 l/h of LHe. e) Safety inspection of the magnet at CERN includes pressure test on the platform. The test takes 2 hours. f) The length for the transfer lines was asked by Laura. Reply from Jaakko: I calculated for the LHe transfer lines 1750 mm for magnet and 1780 mm for dilution cryostat taking into account the height from the platform. Dilution cryostat is closer to the valve box than in the case of the SMC magnet. Jaakko: The transfer lines can reach distance of 1820 mm when mounted on the valve box LHe ports. g) Jean-Marc Gheller is preparing a new mounting of the magnet gas system on top of the magnet on Saleve side upstream. This includes the control valves, heaters, flow meters and pressure gauges. h) The magnet gas system needs to be connected to helium recovery line like with the SMC magnet. The 40 mm recovery line is at +40 mbar nominal pressure. The safety valves need to be connected to the 219.1 mm exhaust line going outside of experimental hall. The modifications to the dilution cryostat piping have to planned and discussed with the welder doing the work. i) Access to the downstream end of the magnet on the platform was discussed for the installation of the warm bore tube. The bore tube is inserted with help of a beam of aluminium supported from both ends. This operation needs 3 m of space at downstream end of the magnet. Test of the mechanical compatibility with dilution cryostat is done when the magnet is installed on concrete blocks next to the target platform. For this operation 3 m of free space is needed at upstream end and 1 m at downstream end. With the length of the magnet this gives total of 7 m. The field mapping system for the magnet needs to be adapted to the CERN environment.