The detection of
radiation events usually requires both charge sensitive
preamplifiers (CSPs) and shaping amplifiers. The CSP
provides a low-noise high-gain input stage, although the
pulse shape at the CSP output has an impractical long tail.
The following shaping stage serves to quicken the return
to the baseline, as well as filtering some of the noise
and (often) further amplifying the signal. The figure
below illustrates the relationship between the CSP and
the following shaping stage:
For those who
are deciding which of Cremat's four charge sensitive
preamplifiers may be appropriate for your application,
we offer this CSP Selection Guide which provides a comparison
of their differences and other information which may be
helpful in your decision.
We also offer
these Charge Sensitive
Preamplifier Application Notes which provide
information useful in designing a detection system using
Cremat's charge sensitive preamplifiers. These notes
discuss such issues as detector-to-preamplifier
coupling, minimizing noise, eliminating ground loops,
and obtaining fast pulse rise-time.
For users of photomultiplier tubes (PMTs), we offer these PMT Application Notes
which gives specific advice and tips on using Cremat
amplifiers with PMTs.
Some say a
picture is worth 1000 words. If you'd like to see a
clear drawing of Cremat instrumentation in a
typical detection system, please look at our
Illustrated example.
Below is a
list of all Cremat products with links to their
specifications. Further questions regarding the
selection or operation of our products can be answered
by email.
CR-150 specifications (evaluation board for
Cremat's charge sensitive preamplifiers)
CR-150-BOX
specifications (aluminum housing for the CR-150 board)
CR-160
specifications (evaluation board for Cremat's shaping
amplifiers)
CR-160-BOX specifications (aluminum
housing for the CR-160 board)
Modular Approach
Cremat encourages a modular approach to developing
instrumentation for radiation detection. Changes or
repairs may be simply effected by changing modules.
