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Message ID: 516     Entry time: Tuesday, October 13, 2020, 11:15
Author: Ferran Boix Pamies 
Target Material: Empty 
Target Oven W.O#: 44139-7-SK 
Source: TARGET BOAT 
Status: Done 
Subject: foil heating 

 2020-10-13 11:13 Target was left under vacuum over the weekend. IGP1: 1.6e-7T water on- leak check ok. Ramping up 2A/30s to 100A.

 2020-10-13 11:47 All ok at 100A. Ramping up, 1A/10s to 200A.

 2020-10-13 12:08 All ok at 200A. Temp tc on foil 200degC. Ramping up, 1A/10s to 300A.

 2020-10-13 12:08 All ok at 300A. Temp tc on foil 340degC. Ramping up, 1A/10s to 400A.

 2020-10-13 12:48 All ok at 400A. Temp tc on foil 474degC. pyro shows 1050degC Ramping up, 1A/10s to 500A.

 2020-10-13 13:06 All ok at 500A. Temp tc on foil 615degC. pyro shows 1238degC Ramping down, 1A/10s to 0A.

 2020-10-13 17:04 The foil has been replaced due to suspected radiation transparency being the cause of low measured temperatures. A graphite and tantalum pack is now attached. Vacuum is back to IGP1: 9.5e-6T. Ramping up to 100A, 1A/10s.

 2020-10-13 17:31 All ok at 100A. Temp tc on foil 80degC. Ramping up, 1A/10s to 200A.

 2020-10-13 17:31 All ok at 200A. Temp tc on foil 310degC. Ramping up, 1A/10s to 300A.

 2020-10-13 17:31 All ok at 300A. Temp tc on foil 468degC. Ramping up, 1A/10s to 400A.

2020-10-13 17:31 All ok at 400A. Temp tc on foil 598degC. Ramping up, 1A/10s to 500A.

2020-10-13 17:31 All ok at 500A. Temp tc on foil 700degC. Ramping up, 1A/10s to 600A.

2020-10-13 17:31 All ok at 600A. Temp tc on foil 760degC. Ramping down, 1A/20s to 0A.

2020-10-14 17:09 foils for radiation focusing have been replaced and doubled to reduce transmission. IGP1:1.5e-5T , water leak check ok. Ramping up to 100A 1A/10s.

2020-10-14 17:30 All ok at 100A. Temp tc on foil 60degC. Ramping up, 1A/10s to 500A. 

2020-10-14 17:50 All ok at 200A. Temp tc on foil 378degC. 

2020-10-14 18:10 All ok at 300A. Temp tc on foil 550degC. 

2020-10-14 18:10 All ok at 400A. Temp tc on foil 705degC. 

2020-10-14 18:10 All ok at 500A. Temp tc on foil 816degC.Ramping up, 1A/10s to 600A.

2020-10-14 18:10 All ok at 600A. Temp tc on foil 906degC.Ramping up, 1A/10s to 625A.

2020-10-14 18:10 All ok at 625A, IGP1: 1.3e-5T. Temp tc on foil 924degC.Ramping up, 1A/10s to 650A.

2020-10-14 19:21 All ok at 650A. Temp tc on foil 940degC.Ramping down, 1A/10s to 0A. Pyrometer on foil 1200degC

 

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