Action #106

Feature #105: Perform a scientific validation of 1DC release

Verify that deadtime is correctly taken into account.

Added by Knödlseder Jürgen almost 13 years ago. Updated over 12 years ago.

Status:ClosedStart date:03/08/2012
Priority:NormalDue date:
Assigned To:Knödlseder Jürgen% Done:

100%

Category:-Estimated time:8.00 hours
Target version:1.0.0
Duration:

Recurrence

No recurrence.

History

#1 Updated by Knödlseder Jürgen almost 13 years ago

It has to be checked whether the actual lifetime is used for response computation. The lifetime should be provided in the header of the event lists.

Note that if the ontime would be used the fluxes should be underestimated, as the flux is proportional to the number of events divided by the time. The lifetime is smaller than the ontime, hence for a given number of events, using the ontime should lead to a too small flux.

#2 Updated by Knödlseder Jürgen almost 13 years ago

  • Target version deleted (00-05-00)

#3 Updated by Knödlseder Jürgen almost 13 years ago

  • Target version set to 00-04-00

#4 Updated by Knödlseder Jürgen almost 13 years ago

  • Status changed from New to In Progress
  • Start date set to 03/08/2012

#5 Updated by Knödlseder Jürgen almost 13 years ago

  • % Done changed from 0 to 20
  • Estimated time changed from 2.00 to 8.00
  • Remaining (hours) changed from 2.0 to 6.0

On kepler.cesr.fr, I started the implementation of pull distribution tests. The relevant scripts can be found in:

/home/knodlseder/cta/pull-distributions/gammalib-00-05-00

So far I worked on a single point source that is onaxis. The scripts and results are in the subdirectory:

point/onaxis

I started to work with a simple point source model, composed of the Crab nebula and a standard background model, using sub-array E from Konrad’s performance files. The scripts that are there so far are:

crab_deadc010_t1800_n10000.sh
crab_deadc050_t1800_n10000.sh
crab_deadc080_t1800_n10000.sh
crab_deadc090_t1800_n10000.sh
crab_deadc095_t1800_n10000.sh
crab_deadc100_t1800_n10000.sh
crab_deadc010_t18000_n10000.sh
crab_deadc095_t18000_n10000.sh
crab_deadc100_t18000_n10000.sh
crab_deadc095_t180000_n10000.sh
crab_deadc100_t180000_n10000.sh

They vary the deadtime correction factor and the observing time (30 min, 5 hours). All runs are for 10000 trials.

#6 Updated by Knödlseder Jürgen over 12 years ago

  • Status changed from In Progress to Closed
  • % Done changed from 20 to 100
  • Remaining (hours) changed from 6.0 to 0.0

#7 Updated by Knödlseder Jürgen over 12 years ago

  • Target version deleted (00-04-00)

#8 Updated by Knödlseder Jürgen about 10 years ago

  • Target version set to 1.0.0

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