Minutes from target meeting held April 17 2015 in 892-1-B09 These minutes are available also from: http://wwwcompass.cern.ch/compass/detector/target/Minutes/2015/ a) Glue longitudinal support rods on target cells and central microwave stoppers. These are made from aramide epoxy. Insert target cells into Kevlar tube on Monday. On Tuesday glue downstream end conical piece made from glassfiber. b) On Wednesday morning fix the target holder alignment spirit level table on the upstream flange. The supporting ring has 2 mm anticorodal plate to protect the 0.1 mm vacuum window during the loading. Fill LN2 to the bath from dewars. Fill solid polarizable ammonia first to the downstream cell and then to the upstream cell. For the downstream cell the three socks with labels '2014 Downstream NH3 2', '2014 Downstream NH3 1' and '2014 NH3 Not Used' were used. For the upstream cell the socks '2014 Upstream NH3 2' and '2014 Upstream NH3 1' were used. In addition about six tea spoons of material from run 2010 were added to fill the upstream cell completely. Leak test target holder vacuum. Check the connection of NMR cables, heaters and thermometers. Replace old indium wire with new one. Insert target holder into mixing chamber. Pump out mixture of air, helium and nitrogen from the mixing chamber for about an hour. The temperature in the mixing chamber just after loading was about 95 K. Open main gate valve VH1 bypass valve VH2 on the helium-3 pumping line. Now the mixing chamber pressure went to about 0.2 bar. Repeat leak test and check the electrical connections again. Leak test access tube volume. Relatively large helium leak found from the indium joint. The access tube pressure can be pumped down to 0.2 - 0.4 mbar with the leak detector with 0.2 bar in the mixing chamber. The pressure rise is immediate if the pumping is stopped. Thus the access tube volume needs to be connected permanently to the main helium-3 pumping line. Start to cool down the helium-4 evaporator, thermal screens and mixing chamber by increasing the flow in these circuits. c) On Friday remove target loading platform. d) Kaori: tune all the NMR coils in this condition. Fine tuning can be done at 1 K temperature. e) Fabrice: magnet status was discussed. One possibility is to use a simplified procedure to validate first the operation of the dilution cryostat, NMR system and to test the polarizability of the target material.