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Message ID: 364     Entry time: Monday, March 17, 2014, 19:10
Author: Anders Mjos 
Target/No.#: Ta#42 
Source: LP-SIS 
Station: ITW 
Module: TM4 
Target Oven W.O#: 40282-1 
Heat Shield W.O#: 39956-1 / 39956-9 (base / lid) 
Status: In progress 
Subject: Conditioning 

NOTE:

TBHT Power Supply is 600A. EPICS thinks it is 500. Multiply current setting with 1.2 for actual current to the tube.

Time stamp on OM-DAQPRO-5300 is on hour behind (daylight savings).

 


All bolts torqued to 130 in lbs. TGHT and TBHT bolts tightened and loosened 3x.

Monday, March 17, 2014, 19:10: Roughing

Monday, March 17, 2014, 19:30: Turbos started

 Monday, March 17, 2014, 19:38: Turbos at speed. 

Monday, March 17, 2014, 19:40: Vacuum at 1.3E-5 T


BY R.M.

Tuesday, March 18, 2014, 10:10: Vacuum 2.87e-07 T

Tuesday, March 18, 2014, 10:12: Heatshield Water Circuit turned on

Tuesday, March 18, 2014, 10:25: Vacuum 2.85e-07 T

By AM

Tuesday, March 18, 2014, 16:06:

Conditioned high voltage BIAS to 30kV. BIAS:RDCUR 37 uA.

Started heater auto-ramping. TBHT to 50A at 1A/min. TGHT to 100A at 2 A/min.

Vacuum at 2.7E-7 T

Tuesday, March 18, 2014, 17:06: TBHT and TGHT reached 50A and 100A respectively. Local readback on TBHT is 58A (as expected - see note above). Vacuum is gradually coming down.


Operation stable over night. TSG:CBC needed to be restarted. Switched off over night.

Wednesday, March 19, 2014, 08:21: Continue heating to 85A / 250 A TBHT/TGHT.

Wednesday, March 19, 2014, 09:12

Water temperatures 27 - 28 deg C, and flow Rates
4.0 l/m HS+MSP
6.4 l/m TBHT
5.1 l/m COIL+EE
5.6 l/m TGHT

Wednesday, March 19, 2014, 09:57: Continue heating to 170 A / 500 A, TBHT/TGHT

Wednesday, March 19, 2014, 09:58: Opened IV4

Wednesday, March 19, 2014, 09:58: Restarted Q1.

Wednesday, March 19, 2014, 10:11: Switched FC0 bias to negative

Wednesday, March 19, 2014, 10:30: Q1 restarted. Possible spark. Small vacuum response on IG1

Wednesday, March 19, 2014, 10:49: Some sparking

Wednesday, March 19, 2014, 12:43: Continue heating to 190A / 580 A TBHT/TGHT.

Wednesday, March 19, 2014, 13:00: TBHT voltage limited. Increased limit to 2.3V

Water temperatures and flow rates
35 C 4.0 l/m HS+MSP
28 C 6.4 l/m TBHT
28 C 5.1 l/m COIL+EE
30 C 5.6 l/m TGHT

Wednesday, March 19, 2014, 13:32: Local read back on PS: 223A / 580A TBHT/TGHT

Water temperatures and flow rates
37 C 4.0 l/m HS+MSP
28 C 6.4 l/m TBHT
29 C 5.1 l/m COIL+EE
31 C 5.6 l/m TGHT

Wednesday, March 19, 2014, 14:30: Measured ~2E-7 A 23Na on FC6 and 2E-7 A on FC0. Vacuum on IG1 4.2E-8 T

Wednesday, March 19, 2014, 14:58: TBHT was voltage limiting. Increased voltage limit to 2.4 V

Target will condition over night.


Thursday, March 20, 2014, 10:07: Measured ~1.4E-8 A 23Na on FC6 and 2E-7 A on FC0. Vacuum on IG1 8.3E-7 T

Water temperatures and flow rates
35 C 4.0 l/m HS+MSP
27 C 6.4 l/m TBHT
27 C 5.1 l/m COIL+EE
29C 5.6 l/m TGHT

Thursday, March 20, 2014, 10:13: Starting mass scan 200 - 0

Local current  on PS (TBHT/TGHT): 227 A / 580 A

At about 10:15 to 10:20 the TGHT:RDVOL dropped from 7.2 - 7.1 V.

Thursday, March 20, 2014, 11:05: Mass scan finished.

Water temperatures and flow rates
36 C 4.0 l/m HS+MSP
28 C 6.4 l/m TBHT
29 C 5.1 l/m COIL+EE
30 C 5.6 l/m TGHT

Thursday, March 20, 2014, 13:20

Water temperatures and flow rates
34.8 C 4.0 l/m HS+MSP
26.1 C 6.4 l/m TBHT
26.8 C 5.1 l/m COIL+EE
28.4 C 5.6 l/m TGHT

Thursday, March 20, 2014, 13:24: Conditioning EE to -2kV

Thursday, March 20, 2014, 13:26: EE at -2kV and 694 uA

Thursday, March 20, 2014, 13:36: Lowering EE back to -1.4kV

Thursday, March 20, 2014, 13:38: Starting the cool down of the target at 2 A/min

Thursday, March 20, 2014, 15:08: Closed IV4


Friday, March 21, 2014, 08:32: Lowered BIAS, EE and EZL to 0. TGHT and TBHT off.

Friday, March 21, 2014, 08:33: Stopped turbos. Vacuum at 1.3E-7 T

Friday, March 21, 2014, 13:10: Venting

Attachment 1: Ta#42_Test_Stand.docx  1.661 MB  Uploaded Friday, March 21, 2014, 15:03
Attachment 2: OMEGA_OM-DAQPRO-5300_21-Mar-14_13.56.35.dlp  1.429 MB  Uploaded Friday, March 21, 2014, 15:03
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