New!

the NEW CR-210 baseline restorer module

 
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Detection Electronics by Cremat, Inc.
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Cremat's radiation detection electronics can be used with a wide range of detectors, including compound semiconductor radiation detectors, scintillator-photodiode detectors, avalanche photodiodes, photomultiplier tubes (PMTs), silicon photomultipliers (SiPM, a.k.a. SSPM, or MPPC) and gas-based detectors (e.g. proportional counters, wire chambers).

All product specifications can be found at this web site, as well as application notes describing their best use.

An overview of our product line is presented below. Information on specific products as well as their specifications can be found here:

 

Our principal line of products are our charge sensitive preamplifier modules, which are small 8-pin single in-line package (SIP) epoxy-coated, single channel circuits less than 1 square inch in size.

   

To make it easier for our customers to evaluate Cremat's line of charge sensitive preamplifiers, we began offering the CR-150 charge sensitive preamplifier evaluation board. The CR-150 has an 8-pin socket to accept a preamplifier module, as well as BNC connectors for the preamplifier output, test input, and detector bias input. There are also banana-style connectors to apply +/-12V for the preamplifier power.

   

Because Cremat's charge sensitive preamplifiers are relatively sensitive, care must be taken to shield the active electronics from the usual ambient RF interference. To make it easier for our customers to shield the CR-150 evaluation board, we introduced the CR-150-BOX, which is a diecast aluminum housing designed to accept and fully shield the CR-150 board.

   

For those that want a fully assembled instrument, Cremat offers the CR-Z line of charge sensitive preamplifier instruments. Preamplifier power is applied via an included wall mounted power supply instead of +/- 12V. At the heart of the instrument is a Cremat CSP module.

 

 

   
Shaping amplifiers are used to transform the shape of the pulses produced by charge sensitive preamplifiers to make the pulses Gaussian-shaped (bell shaped), while also improving signal-to-noise as well as providing an overall gain for the signals. Cremat's line of shaping amplifier modules provide this shaping in a small package. Similar to Cremat's line of charge sensitive preamplifiers, the CR-200 series are 8-pin single in-line package (SIP) epoxy-coated, single channel circuits less than 1 square inch in size. They come in 7 different shaping times from 100ns to 8us.
   
The CR-210 is a baseline restorer (BLR) circuit, developed to correct for the natural baseline depression at the shaping amplifier output occurring during high count rates. Use of the CR-210 BLR circuit will allow for higher resolution spectroscopic measurements, particularly in cases where there are high or varying count rates. This module should be implemented at the output of the shaping stage (CR-200-XX).
   
The CR-160 evaluation board allows customers to evaluate the CR-200 line of shaping amplifier modules. The CR-160 evaluation board provides an 8-pin socket to accept the CR-200 module, as well as input and output BNC connectors, and banana-style connectors to provide the necessary +/-12V power. There are also switchable on-board amplifier stages to further amplify the signals, if necessary. There is also a provision to invert the signals, as well as trimpots to adjust the fine gain, output offset, and pole/zero.
   
The CR-160-BOX is a painted and labeled diecast aluminum housing designed to contain the CR-160 evaluation board. Although it is not as critical to provide electrical shielding to the CR-160 board as it is for the CR-150, The CR-160-BOX does provide a convenient and organized housing for the CR-160 board if needed.
   
Cremat's line of shaping amplifier instruments consist of a CR-200 shaping amplifier module, CR-160 evaluation board and CR-160-BOX housing all assembled into a single instrument. This provides the customer with a completed shaping amplifier instrument without the customer having to assemble it.
   

 

Modular Approach

Cremat encourages a modular approach to developing radiation detection instrumentation. Changes or repairs may be simply effected by changing modules.


 
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