Model 484F Co-60 Self-Contained Irradiator

Features

  • Triple or Quadruple Source
  • 20,000 Curies Loading
  • Multiple Turntable Positions and Attenuators

Applications

Biomedical & chemical research, electronics hardness testing (Mil Spec), sterile insect techniques, sterilization, and catalyst processing.

Description

The Model 484F System delivers a versatile radiation dose to samples without the need for a concrete bunker or additional shielding for personnel safety.  This irradiator is a large capacity (12 + liters) self-contained irradiator with variable dose rates. Up to four separate Cobalt 60 sources can be utilized individually or in combination to expose up to 740 TBq (20,000 curies) of Cobalt 60 to the samples. 

Samples can be positioned on up to three turntables (volumetric irradiation) of various diameters with up to X 8 attenuation to provide dose rates from milliSv to kiloSv/per minute. The turntables can be removed to allow for planar irradiation.  

The Model 484F is delivered with dosimetry charts to provide dose rate and dose distribution for all turntable/attenuator combinations and planar geometry.

Source rods are electro-pneumatically controlled with FAIL-SAFE operation.

Specifications

Sealed Source & Device Registration Number

  • CA1418D102S

Special Form Co-60 Sources:

  • A maximum of 740 TBq (20,000 Curies)
  • Up to four separate source holders with maximum 12,000 Curies of Co-60 in each
ALL MODEL 484F SYSTEMS CAN BE FIELD RELOADED

 

Maximum Dose Rate:

  • 250 cm diameter sample:  9,000 R/min +/- 10%
  • 300 cm diameter sample:  4,150 R/min +/- 10%
  • See Dose Rate Charts

Sample Chambers – Various Models

  • 10″ diameter x 10″ high (25 cm x 25 cm) OR
  • 12” diameter x 14” high  (30 cm x 35 cm)
  • A single 10 RPM turntable motor provides rotation for all turntable positions delivering an integrated dose of +/- 22.5% throughout the chamber
  • A one minute exposure is required to integrate the dose to volumetric samples
  • Up to three attenuators (X2, X4 & X8 dose rate reduction) can be installed with reduction in sample diameter but not height.
  • Stainless steel sample canister: 10″ o.d. x 10″ high (25 cm x 25 cm

Access Ports

  • Two maximum @ 35 mm dia. are available

Safety Measures

  • External Radiation Levels:  The Model 484F has external radiation levels, which average < 20 mR/hr at the surface and < 5 mR/hr at 30 cm from the surface of the device.  Environmental levels at 30 cm are to be less than 5 mR/hr (50 microSv/hr) at all times
  • DOOR Interlocks:   The Model 484F system has multiple levels of interlocks to prevent accidental exposures.   Once the samples are loaded into the exposure chamber, a direct drive actuator closes the access door, and an electro-mechanical deadbolts the door closed
  • Fail-Safe pneumatic source drive with emergency return springs

Control Panel

  • Control panel with Electronic Timer and Preset and Manual operation
  • Individual Cobalt 60 Source selection switches
  • A 0000.00 minute PRESET timer (manual timing available)
  • Keyed power switch with indicator light
  • Individual Interlock Switches
    • On/Off
    • Beam On switch with indicator light
    • Beam Off switch with indicator light
    • Interlocks (closed) indicator lights
    • Low Air indicator light
    • Reset switch
  • Preset/Manual timer switch
  • Emergency OFF switch

Mechanical & Electrical Specifications:

  • Size: 45″ diameter x 85″ high (105 cm x 216 cm)
  • Weight: 18,000 lbs. (7755 kg) maximum

Power Requirements

  • 110 or 220 V
  • 50 or 60 Hz
  • 15 amps
Air Supply
  • 100 PSI minimum, 10 CFM flow

Accessories

  • Attenuators: X2, X4, X8
  • Test Tube Holders
  • Animal Holders
  • Caustic Acid Vessel
  • Heater Assembly
  • Dewar

Options

Our DOSETRACKER Digital Controller can be added for integrated sample data and source control.  An exposure database is standard with this product.

Model 484F