Tungsten Eyeshields

Tungsten Eye Shields - 2 mm Thick
for Electron or Superficial Shielding
Item #	Size	Dim. A	Dim. B	Dim. C	Dim. D
936-583	X-Small	11.6 mm	15.7 mm	17.8 mm	18.8 mm
936-585	Small	13.3 mm	17.4 mm	19.5 mm	20.5 mm
936-587	Medium	15.0 mm	19.1 mm	21.1 mm	22.1 mm
936-589	Large	16.7 mm	20.8 mm	22.9 mm	23.9 mm
936-591	X-Large	18.4 mm	22.5 mm	24.6 mm	25.6 mm
Tungsten Eye Shields - 3 mm Thick
936-596	X-Small	11.0 mm	17.4 mm	19.5 mm	20.5 mm
936-598	Small	12.7 mm	19.1 mm	21.2 mm	22.2 mm
936-601	Medium	14.4 mm	20.8 mm	22.9 mm	23.9 mm
936-623	Large	16.1 mm	22.5 mm	24.6 mm	25.6 mm
936-627	X-Large	17.8 mm	24.2 mm	26.3 mm	27.3 mm
Soft Contact Lenses			Tungsten Eyeshield Diagram
Eyeshield Instructions / Sterilization

• Tungsten eye shields have less transmission than other eye shields

The Tungsten Eye Shield can use either the 0.5 mm or 1 mm thick anodized aluminum cap (both are included with each tungsten eye shield) to reduce the electron backscatter to the eyelid. The eye shield can be used without the aluminum cap when placed superficially.

Recommendations Based on Transmission Values:
The 2 mm tungsten eye shield should be used for 6 MeV, and the 3 mm tungsten eye shield should be used for 9 MeV. These tungsten eye shields are not recommended for use above 9 MeV.

Specifications

Tungsten Density: 17 g/cm³
Aluminum Density: 2.718 g/cm³

The user will have to determine an acceptable amount of backscatter to decide whether to use 0.5 mm or 1 mm aluminum cap.

Reference: Evaluation of Eye Shields made of Tungsten and Aluminum in High-Energy Electron Beam - Randi D. Weaver B.S. Fairview - University Med. Ctr. PO Box 494, 420 Delaware St. SE, Mpls., MN 55455 Int. J. Radiation Oncology Biol. Phys, Vol. 41 Nal, pp 233-237-1998

Radiation Products Design, Inc. www.rpdinc.com sales@rpdinc.com
763-497-2071 Fax 763-497-2295 5218 Barthel Industrial Drive Albertville, MN 55301

Tungsten Eye Shields - 2 mm Thick