Wednesday, June 20, 2012, 17:23

New Target boat, with no coating, wrapped with a 0.002 inches thick Ta foil, contains 3 NiO pellets :

Sample,   # Disks,    Mass (g),    Thickness (mm)

1    12,  1.9396,  1.938

2    13,  0.9592,  0.847

3    25,  2.6675,  3.06

See John's Ipad for their recipes.

Evaporator #2 is now auto-ramping overnight at 0.5 A/min, up to 580 A, with the maximum voltage limited at 14 V, between 3.00e-05 (Good vacuum) and 4.00e-05 Torr (Bad vacuum).

Thursday, June 21, 2012, 18:14  

See attachment #1, 2 for the density measurements and the graph for the disc thickness  -JW