Logbooks Lab Maintenance Evaporator_1 Evaporator_2 Laser cutter Target Production Test-Stand RH-ISAC RH-Cyclotron RH-Meson Hall RH-Beamlines RH-ARIEL
  RH-ISAC, Page 124 of 138  Not logged in ELOG logo
ID Date Author Category Type Module Target/Number Subject
  295   Friday, April 12, 2013, 10:27 David WangITWStandard OperationTM1 I reconnected TM1 to ITW.

TM1 has been reconnected in ITW. Water interlock check for TM1 is done.

  294   Thursday, April 11, 2013, 07:18 David WangConditioning StationMaintenanceTM1Ta#29helium pressure tested all water lines in TM1 at CS

On April 08th, all water lines in TM1 had been helium pressure tested(70psi) at conditioning station. No leak had been found.

  293   Tuesday, April 09, 2013, 09:06 Travis CaveConditioning StationStandard OperationTM1Ta#39Electrical check

TM#1 with Ta#39 has not passed it electrical check again, while sitting at the conditioning station at air. The readings have not been consistant. See the current PDF for details.

 

TM#1 with Ta#39 electrical check at the target station see attached PDF (CHK 4).(April 9th 2013) PASSED

TM#1 with Ta#39 electrical check at the target station see attached PDF (CHK 5).(April 10th 2013) PASSED

  292   Monday, April 08, 2013, 16:16 Bevan MossConditioning StationStandard OperationTM1Ta #39Venting with Argon

 TM1 started venting at 4:15 pm with Argon. I will leave the valve open over night.

  291   Monday, April 08, 2013, 12:10 Travis CaveConditioning StationStandard OperationTM1Ta#39Electrical check

TM#1 with Ta#39 had the electrical check done on it again it passed, changes this time were the water lines were purged and it was under a better then roughing vacuum. See the attached pdf for details.

  290   Monday, April 08, 2013, 09:01 Travis CaveConditioning StationStandard OperationTM1Ta#39Electrical check

TM#1 with Ta#39 at the conditioning station, has failed its electrical test see attached pdf for details. Also while setting up for the electrical test one of the high powered flexible connectors popped out its crimp and another is working it out its crimp.

  289   Thursday, April 04, 2013, 14:31 Bevan MossConditioning StationStandard OperationTM1Ta #39Roughing started

Bevan Moss wrote:

 Roughing started at 12:06. It was believed there was a problem with the compressed air but there was none, TM1 doesn't leak and so you cannot hear that the connection is made.

 Roughing stopped as the module and cover requires modifications that require the vacuum to be opened.

  288   Thursday, April 04, 2013, 12:07 Bevan MossConditioning StationStandard OperationTM1Ta #39Roughing started

 Roughing started at 12:06. It was believed there was a problem with the compressed air but there was none, TM1 doesn't leak and so you cannot hear that the connection is made.

  287   Thursday, April 04, 2013, 11:06 Travis CaveSouth Hot-CellStandard OperationTM1Ta#39module move

TM#1 with Ta#39 has been moved from the south hot cell to the conditioning station move went well.

  286   Wednesday, April 03, 2013, 14:39 Travis CaveSouth Hot-CellStandard OperationTM1Ta#39Electrical check

Electrical check on TM#1 with Ta#39 installed at the south hot cell. Target passed the electrical checks, see attached pdf for details.

  285   Wednesday, April 03, 2013, 13:28 chad fisherSouth Hot-CellStandard OperationTM1Ta#39Ta#39 installed

Ta#39 has been installed onto TM1.

  284   Wednesday, April 03, 2013, 12:26 David WangITEMaintenanceTM4Sic LIS/RFQLeak check on ITE TM4.

TM 4 had been leak check in ITE due to   relatively high PNG1 and IG1 readings.All TM4 primary and secondary  vessel air to vacuum seals had been leak checked. All water lines in TM4 had been helium pressured . There is no leak had been found so far.

  283   Wednesday, April 03, 2013, 10:59 Travis CaveSouth Hot-CellStandard OperationTM1no targetmodule move

TM#1 has been moved from the south west silo to the south hot cell, move went well.

  282   Tuesday, April 02, 2013, 10:07 chad fisherSouth Hot-CellStandard OperationTM1Ta#39Ta#39 inserted into hot cell

Ta#39 has been inserted into the hot cell in preparation for TM1 target change.

  281   Wednesday, March 27, 2013, 12:08 David WangSouth Hot-CellStandard OperationTM4Sic LIS-RFQTM4 heat shield circuit leak check with SiC LIS-RFQ target

Chad and I did the TM4 heat shield leak check yesterday at SHC. The leak detector was pumped to 4.6 xE-9atm.cc/sec, and 0.0xE-4 torr after 1.5 hours pumping. Chad sprayed helium twice on both VCR fittings. There is no response had been found during each 45 seconds waiting time. Since the module moved to ITE directly,we didnt have helium pressure test this time. I  would say thee heat shield circuit is leak tight. so far.

  280   Wednesday, March 27, 2013, 11:49 David WangITEStandard OperationTM4Sic LIS-RFQ Connected TM4 in ITE

TM4 has been reconnected to ITE after the module moving. The roughing is started . The water will be supplied to ITE after  testing  the water  pumps . The water interlock check will be done on next week also.

  279   Wednesday, March 27, 2013, 10:44 Travis CaveITEStandard OperationTM4SiC#28 (RFQ Target)module move

TM#4 with SiC#28 has been moved from the south hot cell to the east target station move went well.

  278   Tuesday, March 26, 2013, 14:17 Travis CaveSouth Hot-CellStandard OperationTM4SiC#28 (RFQ Target)Electrical check

Electrical check of TM#4 SiC#28 (RFQ Target) has been completed. It passed the standard electrical checks for the target part, but the electrical check for the RFQ part is suspect, see the attached PDF for the details.

  277   Monday, March 25, 2013, 14:19 Travis CaveConditioning StationStandard OperationTM4CS Test Target #1module move

TM#4 with the CS Test target has been moved from the conditioning station to the south hot cell. Move went well.

  276   Monday, March 25, 2013, 10:59 Bevan MossConditioning StationDevelopmentTM4FEBIAD HP with Dummy TargetCommissioning TCS - Part 2 Completed

Aurelia Laxdal wrote:

After few hickups the TCS was successfuly commissioned.

In the morning, in the middle of the heaters conditioning: 360A/250A for the TGHT/TBHT, the target heater PS tripped and it didn't recover immediately.  I cannot tell if the card is still OK. Before this even, there were few bias current sparks created when the ionized tube was raised above 250A; this also tripped the Einzel lens. Re-started the Heaters, and did the conditioning with the rest (HV, Optics) Off. After the heaters were at nominal values, raised the rest: HV to 30kV and the Optics. And everything held fine. The current on the FC was 3micro-Amperes. The water temperature levels stayed below 25 deg Celsius.

The problems that need to be fixed:

1. The biggest problem was created by the target power supply: the new card is not calibrated, the voltage is not regulating, but the main problem is the grounding of the output of power supply. Friedhelm measured 0.2V across the return and the cage (200mili-ohms resistance) .  This was probably overlooked.

2. The Auto-ramping routine didn't work. Controls would need to fix this.

3. The RGA didn't want to connect from the account Don created for me. So, we have only a RGA scan taken on Friday by Don, when the target was cold.

 

 Response to item 1. 

This morning I investigated the output of the TGHT power supply. The negative output of the power supply is tied to common as per ISK4574D Rev 7 (attached) and the released drawing IRH1511 Rev A (PDF attached but officially located in the SW vault). If this is not the intent of the IRH1511 should be released to Rev C reflecting the desired configuration. 

 In regards to the calibration of the card I will inform the PS group. 

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