Speaker
Description
The CERN-RD50 collaboration aims to develop and study High Voltage-CMOS (HV-CMOS) sensors for use in very high luminosity colliders. Measurements will be presented for the RD50-MPW2 chip, a prototype HV-CMOS pixel detector with an active matrix of 8 x 8 pixels. The active matrix is tested with injection pulses, a radioactive source and a proton beam. The talk will cover the FPGA based DAQ system, the software and firmware developed to take and analyse data. Preliminary results from a Proton test-beam will also be presented.
SUMMARY
An overview of the DAQ system to measure RD50-MPW2 will be presented. The DAQ is composed of a Xilinx ZC706 FPGA board, a Caribou data acquisition board and the dedicated chip board. The Zynq-7000 XC7Z045 SoC on the ZC706 is programmed with a custom version of the Peary Caribou firmware, a processor side coded in C and logic side coded in VHDL.
A custom C++ GUI has been developed to communicate with the firmware to configure and readout the chip. This allows a simple interface to be used to select a pixel for injection, perform a hit map scan, generate a response curve to calculate the gain, generate s-curve data to calculate the noise, modify the internal DACs of RD50-MPW2, adjust the internal DC baseline level, set thresholds and control the analogue multiplexer. An overview of the entire DAQ chains hardware and firmware/software will be presented.
Preliminary results of a recent test-beam at the Northumbria Rutherford Cancer Centre in the UK will be presented, including initial plots of ToT and Analogue amplitude data. Measurements were taken using an IBA Proteus One – S2C2 Synchrocyclotron proton beam, using a range of energies from 70.2 to 200 MeV.
