The New 3D Water Phantom Electron Meter CCU

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The New 3D Water Phantom Electron MeterCCU
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CCU Intendent use

• The completely software controlled CCU handles
  analog and digital data to control the movement
  of the field probe and the measurement of the
  dose rate signals of the field and reference
  detector.

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CCU Environment
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Independent two channel Electrometer

• Integrated independent two channel electrometer
  allows connecting ion chambers or solid state
  (diodes, diamonds) detectors. It is possible to
  mix these different detector types (i.e.
  individual gain, individual high voltage and
  polarity).

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Trigger Interface

• Two trigger interfaces allow for synchronization
  of measuring sequences to the beam or measuring
  devices if required.

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Electrometer Module

• High dynamic input range (1fA to 4?A)
• 10-16A sensor current resolution(using a 24
  Bit-ADC)
• Calibration data stored in an E2PROM on the
  module
• Easily replaceable without recalibration
• Build in insulation test function

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Technical Specifications

• Max. resolution           
• 0.5fA at 0,4nA full scale
• 5fA at 40nA full scale
• 0.5pA at 4uA full scale
• Full scale range           400pA / 40nA, 4uA
• Leakage current           typically lt1fA
• Time constant              20ms
• Bias voltage range       /- 50 through /-500V
• Calibration                   IEC 60731 field
  class compliant
• Trigger interface           RS 485 (custom
  specific)
• Comm. interface           ETHERNET (100BaseT)
• Main supply 100 240 V AC /- 10 50/60 Hz

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