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 59 of 138  Not logged in ELOG logo
ID Date Author Category Type Module Target/Number Subject
  1598   Tuesday, August 15, 2017, 09:30 Anders MjosITWStandard OperationTM2Ta#53TM2 radiation fields

Travis Cave wrote:

TM#2 with Ta#53 has been moved from the conditioning station to the west target station.

 by Travis (measured at ~ 2' from module on service tray side):

at 3' 325 uSv/h

at 2' 640 uSv/h

  1597   Tuesday, August 15, 2017, 09:27 Anders MjosSouth Hot-CellStandard OperationTM2SiC#36Electrical Check of target in SHC

Travis Cave wrote:

The electrical check of TM#2 with SiC#36 attached. Post beam at the south hot cell. See attached results allow the before beam electrical check results are posted here as well.

by David and Chad after target removed from module:

Anode to target @500V - 65Kohm
Anode to HS - dead short
Target to HS@500V -62Kohm.

  1596   Wednesday, August 09, 2017, 16:39 Isaac EarleNorth Hot-CellDevelopment  NHC drain line into sump identified

 The NHC drain line was tested by pouring approximately 10 gallons of water through the drain grate at the base of the NHC partition wall.  Water was seen a few minutes later pouring into the sump labeled "ACTIVE SUMP" from the light coloured pipe on the west side of the inside of the sump.  Rob Walker had previously said that the hot cells drain into the sump next to this one which is labeled "SANITARY SUMP", which appears to be incorrect.

  1595   Tuesday, August 08, 2017, 13:26 Travis CaveITWStandard OperationTM2Ta#53module moved

TM#2 with Ta#53 has been moved from the conditioning station to the west target station.

  1594   Thursday, August 03, 2017, 17:08 Anders MjosConditioning StationRepairTM2 Power bump

 Thursday, August 03, 2017, 17:08: Restarting vacuum and water system

  1593   Thursday, August 03, 2017, 15:02 Travis CaveSpent Target VaultStandard Operation SiC#36Spent Target Move

 The spent SiC#36 has been moved from the south hot cell to the spent target vault.

Attachment 1: Vault_Storage_August_3_2017.pdf
Vault_Storage_August_3_2017.pdf Vault_Storage_August_3_2017.pdf Vault_Storage_August_3_2017.pdf Vault_Storage_August_3_2017.pdf
  1592   Wednesday, August 02, 2017, 15:41 Keith C NgAssembly/Bench TestDevelopment  spare source tray build

After re zeroing alignment telescope to master jig and adjusted parts into place:

 

Orientation: X = Left -, Right+; Y = Up +, Down -

 

Front wire target

X = 0.000, Y = 0.000

 

Rear wire target

X = 0.000, Y = +.008" (high)

 

All fasteners torqued to specification, steerer housing and assembly not installed yet. Weight of steerer assembly might cause rear to sag into place. Otherwise may attempt to split difference between the front and rear elements (alignment is on an angle in the horizontal vertical plane.)

Attachment 1: 20170802_sourcetray_RHB_8264.JPG
20170802_sourcetray_RHB_8264.JPG
Attachment 2: 20170802_sourcetray_RHB_8266.JPG
20170802_sourcetray_RHB_8266.JPG
  1591   Wednesday, August 02, 2017, 15:13 David WangSouth Hot-CellStandard OperationTM2 SHC, TM2 leak check on HS line.

HS line is leak checked at SHC this afternoon by helium spay.  Leak detector base LR 0.0 XE-9atm.cc/sec. Base pressure 0.0Xe-4 torr. No leak has been found. This line will be helium pressured  at TCS. It had  a 1.7XE-7 atm.cc/sec leak rate on 70 psi helium at TCS  during last two target  checks.

 2017-08-03. Helium pressure test on TM2 HS line at TCS is done. 70psi helium, 3 minutes. base leak rate 0.0xE-7 atm.cc/sec. Result: 1.8XE-7atm.cc/sec leak which is almost same as before. This line has a very small leak on water block seal under helium pressure test  which we knew already. 

  1590   Wednesday, August 02, 2017, 15:09 David WangITWStandard OperationTM2 TM2 was disconnencted in ITW yesterday.

Tm2 was disconnected in ITW yesterday. ITW EL cable crimp ring was broken. John Chow replaced this ring this afternoon.

  1589   Tuesday, August 01, 2017, 14:39 Travis CaveSouth Hot-CellStandard OperationTM2SiC#36Electrical Check

The electrical check of TM#2 with SiC#36 attached. Post beam at the south hot cell. See attached results allow the before beam electrical check results are posted here as well.

Attachment 1: TM2_SiC36_SHC_elec_chk.PDF
TM2_SiC36_SHC_elec_chk.PDF
Attachment 2: TM2_SiC36_Postbeam_SHC_elec_chk.PDF
TM2_SiC36_Postbeam_SHC_elec_chk.PDF
  1588   Monday, July 31, 2017, 09:44 Travis CaveConditioning StationStandard OperationTM3no targetModule move

 TM#3 has been moved back to the NE silo from the conditioning station.

  1587   Tuesday, July 18, 2017, 16:53 Anders MjosConditioning StationDevelopmentTM3No targetConditioning TM3

Conditioning continues today with resistors removed from the HV cable

Tuesday, July 18, 2017, 16:53: BIAS / EZL 50 / 25 kV - no sparks

 Tuesday, July 18, 2017, 16:56: BIAS / EZL 55 / 27.5 kV - one spark


TM3 remained at 55 kV over night. Turbo pumps tripped twice and was restarted and HV recovered by RIB ops. Last recovery brought EZL to 16 kV (not 27.5 kV)

About 25 sparks over 15 h. No sparks for the last 3 h

Wednesday, July 19, 2017, 08:12: EZL to 27.5 kV

Wednesday, July 19, 2017, 08:38: BIAS to 57 kV

Wednesday, July 19, 2017, 08:46: BIAS to 57.5 kV

Wednesday, July 19, 2017, 09:05: BIAS to 59 kV

Wednesday, July 19, 2017, 09:19: BIAS to 60 kV

Wednesday, July 19, 2017, 09:28: EZL to 30 kV

Wednesday, July 19, 2017, 12:25: Heavy sparking. Lowered BIAS to 30 kV

Wednesday, July 19, 2017, 12:37: Increased BIAS again towards 50 kV, but heavy sparking again between 45 and 50 kV. Lowered back to 30 kV

Wednesday, July 19, 2017, 12:40: BIAS at 46 kV

Wednesday, July 19, 2017, 12:42: BIAS at 47 kV

Wednesday, July 19, 2017, 12:44: BIAS at 48 kV

Wednesday, July 19, 2017, 12:48: BIAS at 50 kV

Wednesday, July 19, 2017, 14:50: BIAS at 55 kV after ~2h without sparking at 50 kV

Wednesday, July 19, 2017, 15:12: Sparking. Lowered to 40 kV

Wednesday, July 19, 2017, 16:39: BIAS at 55 kV


Friday, July 21, 2017

Observed top of module inside target hall during HV sparks using crane cameras. No sparks observed, but some faint sound could be heard. Module still sparks at 60 and 55 kV. Have to lower to 40 kV to stop sparking.

Friday, July 21, 2017, 13:25: BIAS / EZL at 50 / 25 kV for without sparking for the last 90 min

  1586   Tuesday, July 18, 2017, 15:04 Travis CaveCraneMaintenance  Failure of the ISAC TH Crane Rotate.

 Earlier in the day it was noted that the rotate function of the crane had creased operation. After David has finished the block moves. Don and I checked the Crane's control unit in the ISAC crane control room and found the breaker tripped for the rotation. The breaker was reset and the crane's rotation is now operational. If this occurs in the future only Travis Cave, Don Jackson or a TRIUMF Electrician are allowed in that control box as it is a 480Volt system. Don or I because we know what we are looking for and the Electrician because they are allowed to touch with and deal 480 V systems. 

  1585   Monday, July 17, 2017, 17:50 Aurelia LaxdalConditioning StationDevelopmentTM3No targetConditioning TM3

Anders Mjos wrote:

50 kV stable with less than 1 spark/h during the weekend by RIB obs.

Today 57 kV reached, but observed sparking on the resistors of the new HV cable. The cable will be removed to take out the resistors, before reinstalling it.

The target hall was locked out, but has now been reopened. This was to avoid sparking to the HV cover.

 EL was brought to 27.5kV.

Attachment 1: 2017-07-17-16_53_03.grab.LWYG0y.png
2017-07-17-16_53_03.grab.LWYG0y.png
  1584   Monday, July 17, 2017, 16:28 Anders MjosConditioning StationDevelopmentTM3No targetConditioning TM3

50 kV stable with less than 1 spark/h during the weekend by RIB obs.

Today 57 kV reached, but observed sparking on the resistors of the new HV cable. The cable will be removed to take out the resistors, before reinstalling it.

The target hall was locked out, but has now been reopened. This was to avoid sparking to the HV cover.

Attachment 1: TM3_HV_conditioning_2017-07-17.docx
  1583   Thursday, July 13, 2017, 10:53 Travis CaveConditioning StationStandard OperationTM3no targetModule move

 TM#3 has been moved from the north east silo to the conditioning station.

  1582   Wednesday, July 12, 2017, 11:05 Anders MjosConditioning StationMaintenance  Testing of new high voltage cable

The target hall has been locked-out as per Document-70039.

Forced IG1, IG1S and IG2 to switch on BIAS power supply

Wednesday, July 12, 2017, 11:53: 70 kV at 0.16 mA

2 sparks observed shortly after 70 kV was reached

Wednesday, July 12, 2017, 12:59: No sparks for the last hour.

BIAS power supply off. Forces removed.

Attachment 1: 2017-07-12_HV_Cable_Test.xlsx
  1581   Tuesday, July 11, 2017, 10:20 Travis CaveITEStandard OperationTM4Ta#52Module move

 TM#4 with Ta#52 has been moved from the conditioning station to the east target station.

  1580   Monday, July 10, 2017, 10:19 David WangConditioning StationStandard OperationTM4 Turned off TCS water system

Prepare for TM4 move tomorrow morning.

  1579   Monday, July 10, 2017, 09:09 Dan McDonaldNorth Hot-CellRepair  manipulator cart repair

A  hydraulic leak was found on the manipulator  install and repair cart, upon further investigation the cause was a faulty cylinder. Once the cylinder was removed and disassembled the inner bore was found to be scored beyond repair. Another point of interest was that the rod was painted to the point that when retracted it compromised the rod seal causing the cylinder to leak. attached are photos outlining the issues. new cylinders are being sourced and will be installed upon arrival. We have found that there is interaction between the tops of the cylinders and the bed of the cart when fully retracted and compressed, this might require some modifications to ensure proper operation in the future.

 

 

Attachment 1: IMG_2955.JPG
IMG_2955.JPG
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