Development of ASD circuit for large detector capacitance

Suzuki, Kazuki

Hadron property in finite density will be examined at High-Momentum beamline in J-PARC. It is required to reduce interaction rate (10 MHz) to trigger rate (1 kHz) with trigger system. Moreover, we reduce the number of channel for large solid angle detectors. Thus, Hadron blind detector which is used in this experiment have 6 nF of detector capacitance. We are developing Amplify-Shaper-Discriminator (ASD) for reducing noise. I will talk about this ASD development.