Ta#38 LP-SIS target description:

Total Ta foils = 400

Foil Thickness = 0.025mm

Target density = 16.69 g/cm3

Target length = 4.1cm

Total Mass (400 foils + Ta wire) = 43.15g

Disc area = 2.12 cm2

Ta thickness = 20.354g/cm2

See link for more details:

http://documents.triumf.ca/docushare/dsweb/View/Collection-9934