Logbooks Lab Maintenance Evaporator_1 Evaporator_2 Laser cutter Target Production Test-Stand RH-ISAC RH-Cyclotron RH-Meson Hall RH-Beamlines RH-ARIEL
  Evaporator_2  Not logged in ELOG logo
Message ID: 620     Entry time: Wednesday, April 12, 2023, 09:53
Author: Darwin Ortiz Rosales 
Target Material: TaC 
Target Oven W.O#:  
Source: TARGET BOAT 
Status: Done 
Subject: TaC coating sintering 

Wednesday, April 12, 2023, 09:53

The coated container was wrapped in 3 Ta foil heatshields.

Target temperature on OMEGA= 1850-1900 C

OMEGA slope:= 0.990

Target time at max temperature = 4 hours

Final Current TBHT= N/A

Final TGHT current= ~400A (adjustable)

Heating autoramp starged at 4A/min on  TGHT  40A

Then at 2A/min  to 90 A.

Good vacuum = 5.0 e-04 Torr

Bad vacuum = 5.0E-02 Torr

 IGP1 initial = 4.7e-07 Torr


Wednesday, April 12, 2023, 10:46

heating at 2A/min to 90A


Wednesday, April 12, 2023, 11:18

Autoramping at 2A/min to 230A


Wednesday, April 12, 2023, 11:53

Autoramping at 4A/min to 230 A


Wednesday, April 12, 2023, 13:57

Autoramping to 380A


Wednesday, April 12, 2023, 14:07

manually adjusted TGHT to 384A. 6.6 V

OMEGA reads 1859 C.   Leaving for 4 hours. 


Wednesday, April 12, 2023, 18:36

Started rampdown at -2A/min

ELOG V2.9.2-2455