Cremat Modules; Jumpers - Pyramid CR10 User Manual

Combined charge-sensitive pre-amplifier and shaping amplifier
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PSI System Controls and Diagnostics
Figure 17. Location of internal switches and jumpers.

14.5.3 Cremat modules

The modules are fitted to the marked locations, label downwards, to establish the required
conversion gain and shaping time configuration. The CR-210 baseline restorer is optional in the
upper (U2b) position. If it is not fitted, then JPR2 must be installed to connect the shaping
amplifier to the output driver stage.

14.5.4 Jumpers

JPR1
POL: fit 2 mm jumper to switch in inverting intermediate amplifier stage. Use as appropriate to
obtain positive polarity shaped output pulsed.
Do not fit if the charge signals coming into the CR10 are negative polarity.
Fit if the incoming charge signals are positive polarity.
G#1: fit 2 mm jumper to switch in first x10 gain intermediate amplifier stage.
G#2: fit 2 mm jumper to switch in second x10 gain intermediate amplifier stage.
CR10 User Manual
CR10_UM_180115
Page 31 of 40

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