Single Hole Disc Apertures

One of the most important factors in obtaining high resolution in both transmission and scanning electron microscopy is the quality of apertures used in the system. We offer a wide selection of these highest quality, high precision apertures. The utmost care and European craftsmanship combine with the most advanced technology to produce these extremely high quality apertures.

Single Hole disc Platinum - Iridium, Molybdenum

Tantalum Apertures

Spray Apertures

Top Hat Apertures

Single Hole Disc apertures

Platinum - Iridium, Molybdenum

Platinum – Iridium (95:5) 2.0 mm outside dia. 0.6 mm thick For Cambridge, JEOL, Siemens, LEO, Cameca	Catalog #	Material	Hole Diameter
	801-8	Platinum - Iridium	5 µm
	801	Platinum - Iridium	10 µm
	801-9	Platinum - Iridium	20 µm
	801-1	Platinum - Iridium	30 µm
	801-2	Platinum - Iridium	50 µm
	801-10	Platinum - Iridium	70 µm
	801-3	Platinum - Iridium	100 µm
	801-4	Platinum - Iridium	200 µm
	801-5	Platinum - Iridium	400 µm
	801-6	Platinum - Iridium	600 µm
	801-7	Platinum - Iridium	750 µm

Molybdenum 2.0 mm outside dia. 0.6 mm thick For Cambridge, JEOL, Siemens, LEO, Cameca	Catalog #	Material	Hole Diameter
	802	Molybdenum	10 µm
	802-9	Molybdenum	20µm
	802-8	Molybdenum	30 µm
	802-1	Molybdenum	50 µm
	802-10	Molybdenum	70 µm
	802-2	Molybdenum	100 µm
	802-3	Molybdenum	200 µm
	802-4	Molybdenum	400 µm
	802-5	Molybdenum	600 µm
	801-6	Molybdenum	750 µm

Platinum – Iridium (95:5) 2.0 mm outside dia 0.1 mm (thin) For Zeiss, LEO,	Catalog #	Material	Hole Diameter
	801-05	Platinum - Iridium	5 µm
	801-10	Platinum - Iridium	10 µm
	801-20	Platinum - Iridium	20 µm
	801-30	Platinum - Iridium	30 µm
	801-50	Platinum - Iridium	50 µm
	801-100	Platinum - Iridium	100 µm
	801-200	Platinum - Iridium	200 µm
	801-300	Platinum - Iridium	300 µm
	801-400	Platinum - Iridium	400 µm
	801-500	Platinum - Iridium	500 µm

Molybdenum 2.0 mm outside dia 0.1 mm (thin) For Zeiss, LEO,	Catalog #	Material	Hole Diameter
	802-20	Molybdenum	20 µm
	802-30	Molybdenum	30 µm
	802-50	Molybdenum	50 µm
	802-100	Molybdenum	100 µm
	802-200	Molybdenum	200 µm
	802-300	Molybdenum	300 µm
	802-400	Molybdenum	400 µm
	802-500	Molybdenum	500 µm

Platinum – Iridium (95:5) 3.0 mm outside dia 0.1 mm (thin) For LEO, Zeiss, Nanolab, Novascan	Catalog #	Material	Hole Diameter
	800-10	Platinum - Iridium	5 µm
	800-11	Platinum - Iridium	20 µm
	800-12	Platinum - Iridium	40 µm
	800-13	Platinum - Iridium	50 µm
	800-14	Platinum - Iridium	70 µm
	800-15	Platinum - Iridium	100 µm
	800-16	Platinum - Iridium	160 µm
	800-17	Platinum - Iridium	200 µm
	800-18	Platinum - Iridium	400 µm

Molybdenum 3.0 mm outside dia 0.1 mm thick For LEO, Zeiss, Nanolab, Novascan	Catalog #	Material	Hole Diameter
	800-110	Molybdenum	20 µm
	800-120	Molybdenum	50 µm
	800-140	Molybdenum	70 µm
	800-150	Molybdenum	100 µm
	800-160	Molybdenum	160 µm
	800-170	Molybdenum	200 µm
	800-180	Molybdenum	400 µm

Platinum – Iridium (95:5) 3.04mm outside dia 0.25 mm thick For Cambridge S600, JEOL, Philips, Zeiss, AEI, AMRAY, Electroscan	Catalog #	Material	Hole Diameter
	803-9	Platinum - Iridium	5 µm
	803	Platinum - Iridium	10 µm
	803-10	Platinum - Iridium	15 µm
	803-11	Platinum - Iridium	20 µm
	803-12	Platinum - Iridium	25 µm
	803-1	Platinum - Iridium	30 µm
	803-13	Platinum - Iridium	35 µm
	803-14	Platinum - Iridium	40 µm
	803-2	Platinum - Iridium	50 µm
	803-15	Platinum - Iridium	70 µm
	803-3	Platinum - Iridium	100 µm
	803-4	Platinum - Iridium	150 µm
	803-5	Platinum - Iridium	200 µm
	803-6	Platinum - Iridium	300 µm
	803-7	Platinum - Iridium	400 µm
	803-8	Platinum - Iridium	600 µm

Molybdenum 3.04mm outside dia 0.25 mm thick For Cambridge S600, JEOL, Philips, Zeiss, AEI, AMRAY, Electroscan	Catalog #	Material	Hole Diameter
	803-200	Molybdenum	20 µm
	803-300	Molybdenum	30 µm
	803-500	Molybdenum	50 µm
	803-700	Molybdenum	70 µm
	803-1000	Molybdenum	100 µm
	803-1500	Molybdenum	150 µm
	803-2000	Molybdenum	200 µm
	803-3000	Molybdenum	300 µm
	803-4000	Molybdenum	400 µm
	803-5000	Molybdenum	500 µm

Platinum – Iridium(95:5) 4.0 mm outside dia 0.165 mm thick For Topcon, ISI, Camscan	Catalog #	Material	Hole Diameter
	820-4	Platinum - Iridium	10 µm
	820-5	Platinum - Iridium	20 µm
	820-6	Platinum - Iridium	30 µm
	820-7	Platinum - Iridium	50 µm
	820-8	Platinum - Iridium	70 µm
	820	Platinum - Iridium	100 µm
	820-9	Platinum - Iridium	150 µm
	820-1	Platinum - Iridium	200 µm
	820-2	Platinum - Iridium	300 µm
	820-3	Platinum - Iridium	400 µm

Molybdenum 4.0 mm outside dia 0.165 mm thick For Topcon, ISI, Camscan	Catalog #	Material	Hole Diameter
	820-200	Molybdenum	20 µm
	820-500	Molybdenum	50 µm
	820-700	Molybdenum	70 µm
	820-10	Molybdenum	100 µm
	820-150	Molybdenum	150 µm
	820-11	Molybdenum	200 µm
	820-300	Molybdenum	300 µm
	820-500	Molybdenum	500 µm
	820-12	Molybdenum	600 µm
	820-13	Molybdenum	800 µm
	820-14	Molybdenum	1000 µm

Tantalum 2.0 mm outside dia 0.6 mm thick Cambridge, JEOL, Siemens, LEO, Cameca	Catalog #	Material	Hole Diameter
	820-209	Tantalum	100 µm
	820-211	Tantalum	200 µm
	820-214	Tantalum	300 µm
	Tantalum final apertures are for SEM use where X-ray analysis of biological materials is being undertaken. Platinum and molybdenum apertures normally used can give rise to X-ray lines.

Spray Apertures

Platinum – Iridium (95:5) 12.65 mm outside dia 0.25 mm thick For Cambridge/LEO and Camscan scanning electron microscopes	Catalog #	Material	Hole Diameter
	800-300	Platinum - Iridium	300 µm
	800-3	Platinum - Iridium	500 µm
	800-4	Platinum - Iridium	1000 µm
	800-150	Platinum - Iridium	1500 µm
	800-200	Platinum - Iridium	2000 µm

Molybdenum 12.65 mm outside dia 0.25 mm thick For Cambridge/LEO and Camscan scanning electron microscopes	Catalog #	Material	Hole Diameter
	800-5	Molybdenum	500 µm
	800-6	Molybdenum	1000 µm

Molybdenum 10.5 mm outside dia 0.25 mm thick For Cambridge/LEO except S180 scanning electron microscope	Catalog #	Material	Hole Diameter
	800-50	Molybdenum	500 µm
	800-60	Molybdenum	1000 µm

Top Hat Apertures

Platinum – Iridium (95:5) 3.04 mm outside dia 2mm Hat 1 mm thick Used in Leo, Zeiss, Nanolab, Novascan	Catalog #	Material	Hole Diameter
	800-70	Platinum - Iridium	30 µm
	800-7	Platinum - Iridium	50 µm
	800-8	Platinum - Iridium	70 µm
	800-80	Platinum - Iridium	100 µm
	800-9	Platinum - Iridium	150 µm
	800-90	Platinum - Iridium	200 µm

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