Gamma Chamber 1200

BRIT has  introduced  GC 1200  in place of  GC 900A. However, BRIT will provide activity for  GC900A  for the benefit of those who had purchased the unit in the past. It's design conforms to American National Standards, ANSI-N433.1-1977, as well as requirements of type B(U) package for safety in transport of radioactive materials as per AERB code No.SC/TSR-1, 2000 of Atomic Energy Regulatory Board of INDIA.

Features :

Safe and self-shielded: The shielding provided is adequate to limit the radiation field on the external surface of the unit, well within the permissible levels. No additional shielding is required for its installation and use.

Automatic control of irradiation time: Built-in timer provides accurate control of irradiation time from 6 seconds onwards. The unit can also be operated manually. Solid state programmable controls have been provided. In the event of power failure battery backup displays the programmes.

Manual control of irradiation temperature: It is possible to irradiate samples at low or high temperature by circulating liquid nitrogen or hot air. These can be introduced through the service sleeves provided in the vertical drawer. The irradiation temperature is sensed by a thermocouple and displayed on the panel.

Dose uniformity: Stationary source pencils, symmetrically placed in a cylindrical cage ensures good uniformity of radiation field in the sample chamber. In addition a mechanism is also provided for rotating/stirring samples during irradiation.

Easy loading and unloading of samples: Sample chamber extends to a convenient height for easy loading and unloading of samples.

Safety assurance: The design of Gamm Chamber conforms to American National Standards, ANSI-N433.1-1977 for safe design and ue of self-contained bry source storage gamm irradiators(Category I). It also meets the requirements of type B(U) package for safety in transport of radioactive materials as per AERB code No.SC/TR-1, 1986 of Atomic Energy Regulatory Board of INDIA

Applications : Accessories & Other Supplies :
Gamma Chamber is a versatile equipment for research studies in many fields such as:
  • Radiobiology
  • Preservation of tissue grafts
  • Mutation breeding
  • Food preservation
  • Sterile male insect technique
  • Biological and genetic effects of radiations
  • Radiation chemistry
  • Radiation effects on materials
  • Radiation sterilization
  • Modification of properties of materials

Gamma Chamber can also be used in many other research applications which require irradiation of materials with ionizing radiations to varying doses.

  1. Attenuators to bring down the radiation dose in the sample chamber by 25% or 50% - are available on request.
  2. Ceric-cerous dosimeters are available in sets of 100 ampules of 2 ml. The Kilo Gray Gamma Dosimeter system to read out the dose delivered, is also available.
  3. Biological indicators inoculated with 106 - 107 spores of Bacillus Pumilus ATCC 14884, on paper disc are available in multiples of 100 numbers (50 pairs). These are useful when sterility is to be construed without subjecting the sample to destructive sterility test.
After-Sales Service:
BRIT can undertake refurbishing of old units and provide replenishment of cobalt-60 source in the unit.
 
   
Specifications of Gamma Chamber 1200 :
Maximum Co-60 source capacity 185 TBq (5000 Ci)
Dose rate to maximum capacity 9 kGy/hr (160 Gy/min)
Dose rate uniformity +25% or better radially;
-25% or better axially
Irradiation volume 1200 cc approx.
Size of sample chamber 106 mm (dia) X 140mm (ht)
Shielding material Lead & stainless steel
Weight of the unit 3.1 Tonne
Size of the unit 110cm (l) X 105cm (w) X 158cm (ht)
Time range 6 seconds onwards
Installation requirements :
Power requirement 220/230V, 50Hz, 5Amps, single phase
Room a) size
3M X 3M X 4M (ht)
  b) door size
1.2M clear width X 2 M (ht)
  c) floor loading capacity
5MT per sq.M
 
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