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 Standard Dosimetric Installations for Gamma Radiation and Calibration Benchs
STANDART DOSIMETRIC INSTALLATIONS FOR GAMMA RADIATION AT110 AND AT120
 
Standard dosimetric installations for gamma radiation are designed for verification, calibration and examination of ionization radiation measurement instruments in collimated field of gamma radiation.
 

Features:

  • Automatic movement of selected source to exposure position and back to storage position
  • Up to 5 gamma sources in irradiator protection container with total 137Cs activity up to: ??110 1,2 •1012 Bq; ??120 9,3•1012 Bq
  • Automatic positioning mode of bench movable platform according to distance set by operator
  • Automatic positioning using manual control console and visual control of distance with calibration ruler reading scale
  • Manual positioning mode
  • Movement (and fixation) of reading scale visor during aligning if the instrument is displaced towards table center
  • Centering detectors of instruments under verification in radiation beam using laser equipment
  • Remote monitoring of instrument readings using a video surveillance system
  • Lock system and visual alarms of source position
  • Source emergency movement to storage position
  • Radioactively safe handling of gamma sources using hoister and handling container
  • Maximum travel speed of movable platform 26 cm/s
  • Safe braking and travel limitation of movable platform
  • Continuous control of radiation environment using alarm dosimeter ??2327
  • Irradiator protection material – lead with tungsten elements
  • Automatic cutoff from power mains upon leak current above permissible value
  • Grooves and thread holes on working table to secure products under verification
  • 220V power outlet on platform to supply for instruments under verification
  • Emergency power sources
  • Turnkey mounting

Applications:


  • Laboratories for research, adjustment and serial production of dosimetric instruments
  • Metrology laboratories focused on calibration and verification of dosimetric instruments
  • Secondary standard dosimetric laboratories (SSDL)
Standard dosimetric installations for gamma radiation ensure remote and manual positioning of instruments under verification on movable platform in collimated beam of ionizing radiation. Remote positioning of movable platform and automatic feed of any of five gamma sources are performed from operator workplace, which can be remote up to 30 meters from exposure chamber. Movable platform positioning coordinates and information on source location are displayed in bench control panel and irradiator control panel. Also, position of movable platform can be taken from reading scale located along the bench base. Movable platform travel speeds using manual control are 26 cm/s; 3,5 cm/s; 6 mm/s; 0,8 mm/s. Movable platform with bearing supports travels on cylindrical guides secured at the base. The movable platform holds working table with hoisting units for vertical movement, and horizontal guides allow table travel across radiation beam axis. The calibration bench is equipped with video surveillance system for taking readings from instruments under verification. Standard dosimetric installations include laser-based devices that allow to snap detector center to radiation beam axis and source center using coordinate of movable platform travel.

Complete set: irradiator, base, movable platform, units and control panels for irradiator and bench, video surveillance system for instrument readings, hoister, handling container, cart, cable kit, laser aligning devices, spare parts and accessories kit, Manual, alarm dosimeter ??2327.
Additionally available: standard dosimeter ??5350 (error ±3%).Configuration of standard dosimetric installation is determined by customer’s technical requirements.

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