The CD SSD-92 is a Precision Dosimeter for the Calibration and Quality Assurance checks of Radiotherapy machines. The instrument is supplied with
a standard 0.5CC Ionization Chamber.
The CD Ionization Chambers are connected to the SSD-92 by BNC plugs. The instrument can be used with many types of chambers. A wide range of
Ion Chambers are available which includes Chambers of different volumes, Parallel Plate Chambers, Well Chambers etc. CD SSD-92 can also be used with solid state detectors.
Over 80 CD Dosimeters have been supplied in INDIA and it is normal to find their calibration accuracy to be within 1% even after many years of usage.
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SPECIFICATIONS
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Ionization Chamber
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Electrometer
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Radiation Detected
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X and Gamma Radiation
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Radiation Range
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80 – 250KV and MeV Range with
necessary build up.
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Chamber Type
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Farmer Type
(Parallel Plate chamber available)
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Build-up Cap
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Perspex 4.75 mm thickness
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Chamber Volume
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0. 5 CC (Other volumes
available.)
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Chamber Wall Material
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Tufnol (Air Equivalent)
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Connectors
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BNC connectors
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Signal and Bias voltages
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Input Impedance
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>10
14
Ohms
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>10
14
Ohms
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Cable Length
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10 Meter Standard (longer cable
optional)
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Bias Voltage
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160 and 320 Volts
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160 and 320 Volts (Optional Polarity
Reversal Mode)
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Stability (Leakage)
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Less than 5 x 10-14A
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Less than 5 x 10-14A
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Accuracy
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Better than +/- 3 %
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Reproducibility
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+/- 0.5 %
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Modes
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Dose
(standard)
Dose Rate (optional)
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Digital Display
3½ Digit LCD
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Dose 0 000 to
1999 MU
000.0 to 199.9 MU
Rate 0000 to 1999 MU / Min
000.0
to 199.9 MU / Min
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Recorder output
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0 to 100 mV full scale
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Mains Power
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115V/230V AC 60Hz/50Hz ±10%
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Carry Case
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Yes
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Yes
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