Nb#11 LP-IG-LIS target description:

Total Ta foils = 470 [6x20 packs + 350 single discs]

Foil Thickness = 0.025mm (0.001")

Target density =  7.13 g/cm3

Target length = 3.53 cm

Total Mass = 25.165 g [Incl foils + Ta wire on 6 packs]

Total mass w/ Target oven=  434 g (w/ end caps)

Discs in target are arranged as follows: 1pack / 75 singles / 1pack / 100 singles / 2packs / 100 singles / 1pack / 75 singles / 1pack

Dimpling direction on foils/ Packs.                                                               --> Center <--

End caps installed (Not expanded). No Ta foil heat shield added

Final desired temperature = 1900C.

Replacement for Nb#10

Thursday, August 24, 2023, 14:16: Roughing.

OMEGA slope = 0.98.

Thursday, August 24, 2023, 14:31: Turbo pump started. 

Thursday, August 24, 2023, 14:41: TGHT / TBHT PS on. Manually test @ 5 / 5 A. ok. Tap back to 0 A. 

Thursday, August 24, 2023, 18:26: Vacuum @ 4.35e-06T. Auto-ramping TGHT / TBHT to 580 / 230 A @ 2 A per minute. 

Thursday, August 24, 2023, 22:00: TGHT / TBHT @ 414 / 230 A (406 / 233 A - Offset). Auto-ramping TGHT to 580 A @ 2 A per min continued. Temperature @ 1353 C. Vacuum @ 4.03e-06T. 

Thursday, August 24, 2023, 23:29: TGHT / TBHT @ 580 / 230 A (569 / 233 A). Auto-ramping TGHT to 610 A @ 2 A per min (approx 600 A w/ offset). Temperature @ 1708 C. Vacuum @ 6.61e-06T. 

Thursday, August 24, 2023, 23:49: TGHT / TBHT @ 610 / 230 A (598 / 233 A). Auto-ramping TGHT to 630 A @ 2 A per min (620 A w/ offset). Temperature @ 1765 C. Vacuum @ 7.22e-06T. 

Friday, August 25, 2023, 00:04: TGHT / TBHT @ 630 / 230 A (618 / 233 A). Auto-ramping TGHT to 650 A @ 2 A per min (640 A w/ offset). Temperature @ 1808 C. Vacuum @ 7.54e-06T. 

Friday, August 25, 2023, 00:16: TGHT / TBHT @ 650 / 230 A (638 / 233 A). Auto-ramping TGHT to 670 A @ 2 A per min (660 A w/ offset). Temperature @ 1845 C. Vacuum @ 7.72e-06T. 

Friday, August 25, 2023, 00:27: TGHT / TBHT @ 670 / 230 A (657 / 233 A). Auto-ramping TGHT to 680 A @ 2 A per min (668 A w/ offset). Temperature @ 1880 C. Vacuum @ 8.46e-06T. 

Manually tap up to temperature.

Friday, August 25, 2023, 00:34: TGHT / TBHT @ 682 / 230 A (669 / 233 A). Temperature @ 1900-1901 C. Vacuum @ 8.59e-06T. Desired Temperature Reached.

Friday, August 25, 2023, 00:37: Auto-cooling @ 2 A per min. 

Friday, August 25, 2023, 06:15: 

Friday, August 25, 2023, 07:40: PS & TP off.