1) connect preamps, look at TPC charge dispersion signals with FADCs 2) Before more running, modify resistor chain to increase transfer field = induction field, this way we will get better gain at lower voltages. Recalculate fields, electron transparency 3) Remeasure Fe 55 peak positions (gain), and energy resolution more carefully, to look for attachment, ensure there are no leaks. 4) Calculate and plot drift velocity and diffusion curves for ArCO2 90/10 from 200 V/cm to 4000 V/cm using Magboltz 5) If necessary, order high purity ArCO2 gas 6) Get TPC HV control computer program working 7) Modify daq software for 62 pad readout of cosmic data, and analysis of data 8) Finalize GEM test cell resistive anode resolution analysis for x rays. What remains to be done? 9) GEM TPC simulation, does the resolution improve with narrower pads - say 200 micron wide? 10) Simulation of rectangular pad read out signals with charge dispersion 11) Open Micromegas test cell, decide and build Micromegas TPC HV distribution system 12) Get parts/components built for modifications to TPC structure and mother board for Micromegas readout with resistive anode |