Rosalina Instruments, Supplier, Distributor of Dosimetry Systems, Radiation Protection Equipments, Radiation Dosimetry Products, Ionization Chambers, Ionization Chambers for Radiation Measurement, Dosimetry Softwares, X-Ray Meters
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QA BeamChecker

A reliable and uncomplicated device for daily quality assurance testing of linear accelerator output

  • Operates Wire-Free
  • Automatically detects which energy is being used
  • Flexible - Use without wires or plug-in and control in realtime through accom panying software
  • Photon and electron build up built into the QA BeamChecker

Operate Wire-Free

The QA BeamChecker contains an internal memory that can store over a month's worth of measurements and give immediate readings via it's large, easy to read display... all without needing a connection to a computer. Simply take a measurement, confirm the display matches the expected energy, and the unit automatically stores and resets, ready for the next measurement. If an unexpected reading occurs, the display indicates if constancy, axial symmetry, transverse symmetry, or flatness is out of tolerance.

Flexible Interface

The QA BeamChecker was designed to measure electron or photon energies without the need for additional build up to be added to the unit. With the push of a button and a flip of the device, the QA BeamChecker will switch between photon or electron modes. The front panel display reorientates itself for easy use no matter which type of energy you measure.

Communications Cradle

The communications cradle is a quick and convenient way to send measured data to your PC. By connecting to an available PC serial port and an external power adapter, the communications cradle becomes a data transfer and battery charge docking station. When you've finished using the QA BeamChecker in Wire-Free mode, simply place it on the cradle to keep it fully charged and available for measurement download.

Machine QA Trending
Real Time Operation



Operating System:

Microsoft Windows® Me, NT 4.0 SP6, 2000, XP


Intel or AMD 350 Mhz or greater


64 MB or greater

Hard Drive:

30 MB or greater

Screen Resolution:

1024 x 768 or greater

CD-ROM Drive:

2X speed or greater


1 available serial port

Ionization Chambers


8 vented ionization

One center detector

chambers(Fully guarded):

Four quadrant detectors, 8.6 cm from center


Three energy identification chambers

Chamber Volume:

0.6 cm3

Parallel Plate Separation:

4.0 mm

Collection electrode:

1.27 cm diameter

Light field alignment:

20 cm x 20 cm alignment grid

Inherant build up


Photon side:

3.5 cm water-equivalent material

Electron side:

1.5 cm water-equivalent material

Radiation measured



Co-60 to 25 MV


6 MeV to 25 MeV

Time and Date:

Real-time clock on board provides time and date

stamp to all data

Memory Capacity:

Stores up to 256 data points before transfer



Temperature and Pressure Measurement (Sensor on board)

Pressure Range:

600 - 800 mmHg

Pressure Resolution:

0.1 mmHg

Temperature Range:

10 - 40 degrees C

Temperature Resolution:

0.1 degrees C

Power Requirements



1.3 Ah SLA, 4 hours of continuous use

Charger input:

90 - 240 VAC, 50-60 hz

Dimensions - QA BeamChecker


40.64 cm (16 inches)


30.86 cm (12.15 inches)


6.15 cm (2.42 inches)


6.4 kg (14 lbs)

Dimensions - Cradle


29.21 cm (11.5 inches)


10.16 cm (4 inches)


7.16 cm (2.82 inches)


1.8 kg (4 lbs)