Block Trays

Custom Block Trays.

All of the Block Trays are custom machined.  Once Manufacturing begins, an order can not be canceled.  RPDinc may request a sample tray be sent in for exact measurements with any first time tray order.  Indicate the slot or hole pattern, if it is different from the sample tray.  The specifications will be kept on file for any future orders.

To build your Custom Block Tray:
• Choose a Tray Style and the number associated with it.

• Choose scribing and the number associated with it.

• Choose a pattern and the number associated with it.

• Choose the material and thickness desired and the number associated with it.

Example:
If you were looking for a Varian Tray for MLC with Optical Coding (087), CA Scribing Target Side (62), 96 Holes ¼” Diameter (20), Acrylic and 3/8” thick (3) your item number would be 087-62-20-3.
See Documents Tab for Drawings of the Block Trays that are available.

Pattern:
Hole Diameters available in 1/4", 3/8", or custom.  Slot Widths available in 1/4", 7/32", or custom.  Hole patterns available in 44 holes, 88 holes, 96 holes, or custom)

Material and Thickness:
1/4" and 3/8" thick trays are most common.  For very heavy blocks you may want to use 3/8" or 1/2" thick trays.  Thicker trays are machined along the edges to fit the slots of the tray holder.

Acrylic
Acrylic is more rigid and scratch resistant than Lexan; however, it will break if dropped.  Acrylic block trays will discolor from large amounts of radiation and may become brittle.  Cracked trays should be removed from patient use; however, they could be used in the block room as set-up trays.
Acrylic Density:  1.17 to 1.20 g/cm³

Polycarbonate (Lexan)
Polycarbonate (Lexan) is virtually unbreakable, scratches easily and will flex more under a heavy load.
Polycarbonate (Lexan) Density: 1.2 g/cm³