THIN FILM GOLD FOIL APERTURES
Especially suitable for the objective, these half-micron thin apertures are self cleaning and contamination resistant. They have a long operating life with negligible astigmatism. 2mm or 3mm available from stock, with hole sizes 15 to 400µm.
OD = overall diameter, T = thickness


MAPT2X50-015 Thin film aperture, 15µm hole AUD100.00 stock?
MAPT2X50-020 Thin film aperture, 20µm hole AUD100.00 stock?
MAPT2X50-030 Thin film aperture, 30µm hole AUD94.00 stock?
MAPT2X50-040 Thin film aperture, 40µm hole AUD94.00 stock?
MAPT2X50-050 Thin film aperture, 50µm hole AUD94.00 stock?
MAPT2X50-070 Thin film aperture, 70µm hole AUD94.00 stock?
MAPT2X50-100 Thin film aperture, 100µm hole AUD94.00 stock?
MAPT3X24-020 Thin film aperture, 20µm hole AUD94.00 stock?
MAPT3X24-025 Thin film aperture, 25µm hole AUD94.00 stock?
MAPT3X24-030 Thin film aperture, 30µm hole AUD94.00 stock?
MAPT3X24-040 Thin film aperture, 40µm hole AUD94.00 stock?
MAPT3X24-050 Thin film aperture, 50µm hole AUD94.00 stock?
MAPT3X24-060 Thin film aperture, 60µm hole AUD94.00 stock?
MAPT3X24-070 Thin film aperture, 70µm hole AUD94.00 stock?
MAPT3X24-100 Thin film aperture, 100µm hole AUD94.00 stock?
MAPT3X24-150 Thin film aperture, 150µm hole AUD94.00 stock?
MAPT3X24-200 Thin film aperture, 200µm hole AUD94.00 stock?
MAPT3X24-300 Thin film aperture, 300µm hole AUD94.00 stock?
MAPT3X24-400 Thin film aperture, 400µm hole AUD94.00 stock?

APERTURE FLAMER
For holding platinum aperture discs or strips during heat cleaning. Discs apertures to 3mm can be cleaned in the smaller flamer within a 4.6mm diameter Pt cup.
The larger flamer has a flat platinum pan design and apertures up to 13mm can be cleaned with it. In both designs the cup/pan is attached by a platinum wire to a heat-resistant handle. Cup and pan are made of 0.15mm Pt foil and have a 0.8mm hole to aid air flow. For heat cleaning aperture strips, hang on the hook provided with both styles of flamers.
Pre-clean apertures in solvent (chloroform). Heat, preferably over spirit burner or low bunsen's, blue flame for a few seconds. Heat and resistant contaminants eventually destroy apertures.
Note: tantalum and molybdenum apertures must be cleaned in a vacuum coater. For this : Support the aperture in a tantalum or molybdenum "boat". Heat for 5 minutes at a dull red. Cool well before venting the bell jar.
User Notes

MT069 Aperture flamer, 4.6mm diam cup AUD804.00 stock?
MT070 Aperture flamer for large apertures AUD482.00 stock?

FEI (PHILIPS) WEHNELT APERTURE CAPS
Direct replacement in tantalum

MAC500 Wehnelt aperture cap 500µm AUD31.00 stock?
MAC1000 Wehnelt aperture cap 1000µm AUD56.00 stock?
MAC200 Wehnelt aperture cap 200µm AUD45.00 stock?
MAC400 Wehnelt aperture cap 400µm AUD49.00 stock?
MAC750 Wehnelt aperture cap 750µm AUD49.00 stock?