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The TLD Annealing Planchets are engraved with numbers 1 to 10 across the top. The rod planchet is engraved with numbers 11, 21, 31, and 41 on the side, and the chip planchet is engraved with numbers 11, 21, 31, 41, 51, 61, 71, 81 and 91 on the side, indicating chip locations.
The specially machined holes (3/16" diameter) allow good thermal contact of the rods and chips providing rapid cooling when placed between the brass cooling plate set (Item 164-000), as required by the Cameron Annealing Technique.
They are furnished with two holes on one end for the Planchet Handle (Item 163-002). An acrylic storage cover with two thumb screws provides a secure way to retain the chips or rods in their locations after cool down.
TLD Procedure
• Bake TLD chips at 400° C for 1 hour, then quench between
Brass Cooling Plates (Item 164-000)
• Bake TLD chips at 80° C for 16 to 24 hours or 100° C for
2 hours
• Expose to radiation
• The TLD reader preheat cycle is set at 100° C
• The TLD’s should be read under a low amount of nitrogen,
either 1.88 SLPM (Standard Liters Per Minute) or 4 SCFH
(Standard Cubic Feet Per Hour).
Specifications
Material: Anodized Aluminum
Size: 10 cm x 12 cm x 6.3 mm
Note
To clean the holes, use Q-tip® swabs. Bake the planchet for 4 hours at 400° C before using. The aluminum planchet will not deposit aluminum on the TLD chips or rods.
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No over temperatures at set points of 80°, 100° or 400°C
spring mounted for optimum sealing when closed. A large interior chamber provides an even temperature distribution for the aluminum planchet. All steel cabinet surfaces are electrostatically coated with high-temperature baked-on enamel.
