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PEA-6
Preamplifier for Proportional Counters

SPECIFICATIONS
Inputs
Signal Input
Positive or negative charge pulses up to 5x10-9 Coulomb (3x1010 ion pairs)
  
Test Input
Positive or negative, voltage input, charge-coupled to preamp
  
Power
+12 V 50mA
-12 V 25mA
  
Output
Output pulses has the inverted polarity to the input pulse
  
Rise-time
10 nsec at 0 pF to approx. 60 nsec at 300pF
  
Fall-time
approx. 100 μsec
  
Amplitude
max ± 7.5V
  
Output Impedance
50 Ω
  
Performance
Integral Nonlinearity
Less than 0.1% for an amplitude of 0 to ± 4 V
  
Resolution (at 20 pF)
4x10-17 Coulomb RMS (260 ion pairs RMS)
  
Stability
Better than 0.01% /° C
  
Open Loop Gain
> 50 000
  
Sensitivity
1V/10-¹² Coulomb(0.16µV/ion pairs/s)
  
Count Rate
10-5 Coulomb/s (6x 1013 ion pairs/s)
  
Connectors
Input, test input, Output
 
BNC
 
High voltage
 
SHV
 
Input from proportional counter
 
MHV Power cable 2.50m,
9 pin SUB-D connector
Pins in Ortec/Canberra standard
Physical
Size
11 x 6 x 3.4 [cm]
  
 
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