= Test Measurements with Closed Lid

Since 17.2.2015, there is a new '''measurement type''' available to facilitate the measurements with closed lid. This new type can be scheduled normally via https://www.fact-project.org/schedule/ or schedule.js [[BR]][[BR]]
Name of '''task''': CUSTOM[[BR]]
'''Options''' to be provided: zd, az, biason, time, threshold

Example for schedule.js: 
{{{
 { date:"2015-02-17 22:30 UTC", measurements:
     [
      { task:'custom', zd:101, az:0, time:3600, threshold:600, biason:false}
     ]
 },
}}}

Example for website: 
[[Image(https://www.fact-project.org/logbook/attachment.php?aid=9795)]]

To stop such a measurement: 

* update the schedule
* send ''MCP/STOP''

[[BR]]
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= Test Measurements with Closed Lid [Old Documentation]

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 type of events occur in that case

=== bias on or off
the bias might be switched on or off for these measurements

bias on: probably muon events (they look different depending on the zd, also the rate changes)[[BR]]
bias off: only electronics noise triggering

=== settings you probably want to change in this test 

- sky position (different zd)
- bias on/off
- threshold
- number of events

= how to do such a measurement

=== sky position

in case you want to do it '''not''' in park position: 

in drivectrl: [[BR]]
''MOVE_TO <zd> <az>''[[BR]]
(you just need to position the telescope, tracking is not needed)[[BR]]
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

=== bias [only needed for measurements '''with''' bias voltage]

in case feedback is not yet calibrated: [[BR]]
in feedback: [[BR]]
''CALIBRATE''[[BR]]
wait until it is calibrated

in feedback[[BR]]
''START 1.1''

in biasctrl[[BR]]
''SET_GLOBAL_DAC 1''[[BR]]
the feedback system should now ramp the voltage automatically to the needed values

=== configure run

in mcp: [[BR]]
''START <timemax> <nummax> <runtype>''[[BR]]
e.g. ''MCP/START -1 100 custom'' (will take a run of 100 events; run type custom is needed here; with runtype data it seemed not to work) 

=== set trigger settings

in dimctrl:[[BR]]
''RATE_CONTROL/STOP''

in ftmctrl: [[BR]]
''STOP_TRIGGER''[[BR]]
''ENABLE_TRIGGER yes''[[BR]]
''SET_TIME_MARKER_DELAY 123''[[BR]]
''SET_THRESHOLD -1 <threshold>''[[BR]]
e.g. ''SET_THRESHOLD -1 400'' (setting the threshold to 400 DAC counts[[BR]]
''START_TRIGGER''

in fadctrl: [[BR]]
wait until run is finished and file is closed

you may look at the events after few minutes (when it's transferred from newdaq to daq) on https://www.fact-project.org/viewer/

=== stop a measurement

in case you want to abort a measurement, eg when the weather improves: 

in ftmctrl:[[BR]]
''STOP_TRIGGER''[[BR]]

in mcp[[BR]]
''STOP''[[BR]]

in fadctrl:[[BR]]
''CLOSE_OPEN_FILES''[[BR]]