Spent target SiC#28 (RFQ Target) has been moved from the south hot to the storage vault. The target was placed in pail #105 in spot 2C of  the spent target vault. The target had a field of 24.8mSv/hr at about a meter upon removal from the south hot cell. See attached PDF for the status of the vault. It currently only has six free spots left.

SiC#27 has been installed onto TM4. Fit was very good. All electrical connections double checked with mirror.

Pictures can be found at: http://documents.triumf.ca/docushare/dsweb/View/Collection-8530
 

TM#4 with SiC#27 has had its electrical check. See attached PDF for details.

Electrical check of TM#4 with SiC#27 under vacuum at that conditioning station. See attached PDF for details.

Module has been moved from conditioning station to the east target station. Move went well.

TM#4 with SiC#27 moved from the east station to the south hot cell. Fields at East MAA were 127mSv/hr and the fields at the south hot cell was 77.5 mSv/hr.

SiC#27 has been moved from the south hot cell to the spent target vault. Target was placed in pail #96, placed in slot 3A, the fields at the hot cell were 178mSv/hr. For the latest on the vault see attached document.

TM#4 with SiC#26 HP has been checked electrically it has passed. It was noted that the Megger check of the Oven to Chassis (earth ground) and Oven to 60kV Common is low but will not hinder running, according to Don Jackson.  Also yesterday the transition piece that sits on the 55 pin connector was damaged from excessive handling, it was removed and repaired and it now back in place.

TM#4 with SiC#26 HP has been moved from the south hot cell to the conditioning station.

TM#4 moved from conditioning station to south hot cell. For further leak checking.

TM#4 with SiC#26 HP moved from the south hot cell to the conditioning station.

 The silicon carbide targets voltage was raised to 42 kV today before continuous current draw was observed. It took roughly 10 minutes to raise the module to this voltage with only the occasional spark. The ION gauge reading was 2.0 x 10^-6 T, The service cap IMG 3.6 x 10^-6 T, and the secondary vacuum was 4.5 x 10^-6 T. Setup check and conditioning was performed by Pierre.

TM#4 with SiC#26 HP move from the conditioning station to the East Target Station, move went well.

HP febiad target SiC#26 was installed onto Tm4 on Monday morning.

"JP's" connector required lossing of the two mounting fasteners. Connector was pushed tight to its mating half on the source tray and both fasteners retightened, and the mating checked; it was good.

Two new 7/8 long 3/8-16 fasteners were used for the febiad coil connections.

Installation went well.

Leak check was performed:

Base Pressure: 0.0x10-4

Stable leak rate 0.0x10-9

Left vcr joint was checked two times with a 2 second spray of helium with a 60 second waiting time between sprays; no response.

Right vcr joint was checked two times with a 2 second spray of helium with a 60 second waiting time between sprays; no response.

Fllod of system with a 6 second spray; no response.

TM#4 with SiC #26 was moved from the East Station to the South Hot Cell. Bevan was at the helm of the PLC. There was no issue with the move.

Results of the electrical check of TM#4 with SiC#26 attached post beam.

SiC#26 was removed from target module #4 this morning. Target shows the now standard arc marks on the 9 pin connector housing...pictures to follow.

Of greater concern is the amount of "plating out" or "arc" marks on both the insulators and connductor of the TM4 source tray. I will again warn that the source trays historically have a life expectancy, and that TM4 continues to show visual signs that the current source tray is rapidly approaching the end of its useful life!

I understand that one of this years goals is to retrofit TM3; however I fear TM4(and possibly TM1) may fail before this can be released. With the current absence of backup source trays and modules I fear we leave the ISAC program in a very vulnerable position.

SiC #26 was moved from the south hot cell into storage today. The target was is in pail # 94 and was placed in slot 1B in the storage vault. The fields of the pail at the hot cell were 118mSv/hr upon pail been removed from the hot cell. Attached is the current status of the storage vault.

Tm2 with SiC nano has been connected in ITW. See attachment for checklist

TM2(SiC nano) has been disconnected in ITW. See attachment