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OPTIONS


Options
Photomultiplier Socket Assemblies
Accessories
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OPTION #35:

Specifications

- Discontinued -

PREAMPLIFIER SOCKET ASSEMBLIES

 

Normally, utilizing a signal terminating resistor will convert a signal current to a voltage (V=IR). However, this will introduce a time constant which will alter the time aspect of the signal.

The Products for Research Option #35 model PSA-01 Preamplifier is useful in time-sensitive applications where the signal level (current) from the detector is too small to conveniently measure. The PSA-01 is an inverting transimpedance amplifier with externally switchable conversion gain settings (10^3, 10^4, 10^5, and 10^6), allowing measurement of low signal levels without altering the time aspects of the signal. Rise time and minimum pulse width (therefore bandwidth) are dependent on the selected gain setting and, to some extent, the detector itself.

Option #35 is typically integrated directly into Products for Research photomultiplier socket assemblies, minimizing the distance between the detector output (e.g. anode pin) and the preamplifier input.

For users with existing PMT socket assemblies, an external, standalone version with the same specifications as the PSA-01 (see Accessories - PSA Package) is also available.


Dimensional outline of PSA Package



 
SPECIFICATIONS
General:
Mode:Inverting, current to voltage
Voltage Required:+15 V, 100 mA and -15 V, 100mA, via 3 pin connector (mate supplied)
Maximum Output:+5 V into 50 Ohms
Conversions:
4 settings via mounted switch
A = 1 mV per 1 uA (10^3)B = 10 mV per 1 uA (10^4)
C = 100 mV per 1 uA (10^5)D = 1 V per 1 uA (10^6)
Rise Times:
A: 75 nsecB: 150 nsec
C: 250 nsecD: 1 usec
Minimum Pulse Widths:
A: 100 nsec (10 MHz)B: 200 nsec (5 MHz)
C: 1.6 usec (625KHz)D: 15 usec (66KHz)
Dimensional Outlines:
Option 35 Socket Assembly for 2 inch [53.4 mm] Cooled Housing (5K) Option 35 Socket Assembly for 1 inch [30 mm] Cooled Housing (5K)
Option 35 in PR1400CE 2 inch [53.4 mm] Ambient Housing (8K) Option 35 in PR1401CE 1 inch [30 mm] Ambient Housing (7K)




PFR Closes Manufacturing

 

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