completed installation of Model 812, s.n. 001 in May 2012.
The Model 812 system provides the following capabilities:
Maximum loading of 22,500 Curie Cobalt 60 (7500 Curies in each of three source
Maximum Dose Rate
> 680 Gy / min (4.1 megaRad /hr) to a 6cm wide a 26 cm tall planar sample
Maximum full volume sample – 200 mm dia.
X 260 mm high.: 200 Gy/minute
Environmental radiation levels with MAXIMUM Loading: Average
of < 10 microSv/hr at the surface.
Readings to be < 25 microSv/hr @ 50 cm from the surface.
Stainless Steel sample chamber for durability and cleanliness.
Multiple interlocks (up to EIGHT) on Chamber Access
Door to prevent accidental exposures.
Driven Door Actuator
12 RPM turntable
drive motor to deliver an integrated dose (+ / - ~ 22.5%) for full size samples.
Two each 19 mm diameter Access ports with scatter
Stainless steel full size
Reduction factors of X 2 X 4 and X 8
Other equipment: Dewars, heaters,
Dimensions: 105 cm diameter x 220 cm high
110v or 220 v 50 or 60 Hz. 15 Amps.
(System operates on 24vDC power supplies)
Air Supply 100 PSI 10 CFM
Power switch with indicator light
and OFF switches with indicator lights.
Electronic timer for PRESET cycle operation.
Individual Source s Selector switches with indicator lights.
EMERGENCY OFF switch
INTERLOCK indicator lights for troubleshooting.