Version 9 (modified by 10 years ago) ( diff ) | ,
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Test Measurements with Closed Lid
as I was asked already several times how to do these measurements, I put here some information on how to do it
goal of such measurements
record events with closed lid to study what events occur in that case
bias on or off
the bias might be switched on of off for these events
bias on: probably muon events (they look different depending on the zd, also the rate changes)
bias off: only electronics noise triggering
how to do such a measurement
sky position
in case you want to do it not in park position:
in drivectrl:
MOVE_TO <zd> <az>
(you just need to position the telescope, tracking is not needed)
in case you want to go to zenith, I recommend something like 2° as directly zenith might be difficult for a real telescope ;)
lid
make sure that the lid is closed
configure run
in mcp:
START <timemax> <nummax> <runtype>
e.g. MCP/START -1 100 data (will take a data run of 100 events)
set trigger settings
in ftmctrl:
STOP_TRIGGER
SET_THRESHOLD -1 <threshold>
e.g. SET_THRESHOLD -1 400 (setting the threshold to 400 DAC counts
ENABLE_EXT1 no
ENABLE_VETO no
SET_TRIGGER_SEQUENCE 0 0 0
START_TRIGGER