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PART NUMBER: 1-3030
INDICATED USE: Simultaneous Alpha/Beta sample counting
DETECTOR: ZnS(Ag) adhered to plastic scintillation material
TUBE: 2" (5.1cm) diameter magnetically shielded photomultiplier
WINDOW: 0.4 mg/cm² aluminized mylar
ACTIVE and OPEN AREA: 20.3 cm²
SAMPLE HOLDER: Brass housing with Stainless Steel sample tray capable of holding 1” or 2” diameter samples
EFFICIENCY(4pi geometry): 
ALPHA: 37%-Th-230; 39%-U-238; 37%-Pu-239
BETA: 8%-C-14; 22%-Tc-99; 29%-Cs-137; 26%-Sr-90/Y-90
CROSS TALK: Alpha to Beta: 10% or less
Beta to Alpha: 1% or less
BACKGROUND: Alpha - 3 cpm or less 
Beta-Gamma - Typically 80 cpm or less (25 µR/hr field )
AUDIO: Built in unimorph type speaker with volume control to provide a dual tone (1 for each channel ) click-per-event audio
STATUS INDICATORS: Backlit indicators for QC-Daily QC check needed; OL-Scintillation detector is in overload condition; CPM/DPM-Counting in CPM or DPM mode; aAL/bAL-Count has exceeded alarm setpoint
SCALERS: 2 ea. 6 digit LCD displays with backlights providing a range of 0 - 999999 counts (started by COUNT button)
SCALER LINEARITY: Reading within ±2% of true value
COUNT TIMER: Adjustable from 0.1 - 30 minutes (PC setting is user-defined via PC software)
HIGH VOLTAGE: Adjustable from 200 - 2500 volts
THRESHOLD: BETA - 4mV
ALPHA - 175mV
BETA WINDOW: 50mV
DATA-OUTPUT: 9 pin RS-232 port
POWER: 85 - 265 VAC, 50-60 Hz single phase (less than 100 mA) with battery backup
CONSTRUCTION: Aluminum housing with Gray polyurethane enamel paint and sub-surface printed front panel
TEMPERATURE RANGE: -4°F (-20°C) to 122°F (50°C) 
May be certified to operate from -40°F (-40°C) to 150°F (65°C)
SIZE: 9" (22.9 cm)H X 6" (15.2 cm)W X 9" (22.9 cm)D
WEIGHT: Approximately 40 lbs (18 kg)
SOFTWARE: PC based to perform setup and calibration routines including background subtract, crosstalk correction, cpm/dpm modes, daily QC check parameters, alarm levels, and automatic plateaus. All parameters are stored in the instrument in non-volatile memory. Logging of data is also available with software collecting and storing the following data:
Sample Number Sample Date Sample Time Alpha Count
Beta Count Sample Type Comments