1. NC: DFBXD – Lead HTS #2 too cold PersonHowWhenObservationsStatus Cartridge x 2 Philippe Denis (Ph.D) Changed (confirmation and details by Ph.D) 20 and 27 Mai 09 ? ? Thermal switch Philippe DenisChanged (confirmation and details by Ph.D) 20 and 27 Mai 09 Location of the integrated TC by the Cartridge  different temperatures measured on the cu block and by the TC ? Regulator Philippe DenisBy inversing lead #1 and #2 cartridges20 and 27 Mai 09 If cartridges used w/o copper block then fast oscillation for both lead #1 and #2 tested. ? TT891 C.DMonitoringJuly 08 and Mai 09 If CV891 forced close then TT891 warm-upOK TT893 C.DMonitoring – Not a control parameterJuly 08 and Mai 09 Ok at RT. Compared with ambiantOK CV891 P2 Control room Laurent Sevrin / Jean-Paul Closing CV891 Compared lead #1 and 2 behaviors 27 Mai 09If CV891 closed then TT891 warms- up No leak observed. OK Electronics of CV891 A. P.Test on going to define PID regulator parameters for 7.5 kA leads ?Regulate in narrow range (0<2% opening)? Insulating vacuum for HTS A. B. ?Pump and keys available by Pascal Chambouvet ?? Cartridge / Copper Block A. B. ?Change copper block ??If local regulation at 80C on EH893, then cu block still cold to the touch ? Copper Block / Current lead A.B. ??tbd?

2. Condensation DFBXD – Amenee HTS #2 La temperature du bloc reste froide au touche (~ 10 C). La mesure exacte sera realisee by 10/06/09 La lecture du controleur est de 50 C. (Valeur augmentee a 75 puis 80 C)

3. DFBXD – Amenee HTS # 2 Tests realises le 8 Juin 2009 EH893 consigne augmentee de 50 C a 75 C EH893 consigne augmentee de 75 C a 80 C CV891 lachee en regulation SP : TT891=50 K CV891 – SP: TT891=70K

4. DFBXD – Amenee HTS # 2 Tests realises le 27 Mai 2009 EH893 consigne augmentee de 50 C a 75 C EH893 consigne augmentee de 75 C a 80 C CV891 lachee en regulation SP : TT891=50 K CV891 – SP: TT891=70K