Difference: VELOSimulation (1 vs. 3)

Revision 32008-04-30 - DavidHutchcroft

Line: 1 to 1
 
META TOPICPARENT name="VELOSoftware"
VELO Simulation To Do List

Please contact Tomasz and Chris if you want to volunteer!

Deleted:
<
<
  • The charge deposited in the silicon as calcuated by GEANT is incorrect. Study alternative GEANT parameter settings with delta ray production (if fix can be found can be applied to ST also). David Hutchcroft volunteered

  • Pulse Shape timing offset - taking account of TOF of particles for main event and spillover event. David Hutchcroft working on this
 
  • Add history information to the MC Hits, i.e. noise, signal, x-talk,spill-over - as already done for RICH and muons.
Changed:
<
<
  • Improving parametrisation of the pulse shape - make use of the ST tool ?
>
>
  • Simulate Pedestal, Common Mode, x-talk - NOT for standard simulation but could be useful for studying TELL1 algorithms ?
 
Changed:
<
<
  • ADC count calibration - electron to ADC calibration is assumed to be linear in simulation, data shows this is clearly not true. JC Wang volunteered
>
>
  • Add radiation damage effects to silicon simulation (low priority at moment)
 
Changed:
<
<
  • Improve the noise simulation - include the strip capacitance variation, compare with data
>
>

Items fixed in GAUSS v30r5

 
Changed:
<
<
  • Resolution retuning, once test-beam results final (currently tuning looks not too bad).
>
>
  • The charge deposited in the silicon as calculated by GEANT is now correct after the ST tool to fix the data, see for example Energy Deposition in Gauss by James Mylroie-Smith
 
Changed:
<
<
  • X-talk - current simulation has 5% symmetric x-talk, clearly incorrect. Wish to simulate any residual x-talk after FIR filter applied.
>
>
  • Pulse Shape from testbeam data, with all of the spillover correctly added from -25ns, -50ns and +25ns:
 
Changed:
<
<
  • Noise threshold for full simulation of 4500 e- is applied - option can be set to 0 e- for noise studies, but adding a switch option would be neater.
>
>
  • ADC linearity calibration - electron to ADC calibration provided by JC Wang using data taken with test pulses in real TELL1s, see for example New Velo Simulation Tune
 
Changed:
<
<
  • Simulate Pedestal, Common Mode, x-talk - NOT for standard simulation but could be useful for studying TELL1 algorithms ?
>
>
  • Noise simulation with a different noise for each strip, data taken from Liverpool Burn-in on all production sensors
 
Changed:
<
<
  • Add radiation damage effects to silicon simulation (low priority at moment)
>
>
  • Cross talk tweaked to get cluster size about right from ACDC2 data (?), now 1%

Changes detailed in for example New Velo Simulation Tune by David Hutchcroft.

  -- Main.parkes - 16 Aug 2007 \ No newline at end of file
Added:
>
>
-- DavidHutchcroft - 30 Apr 2008
 \ No newline at end of file

Revision 22007-08-20 - ChrisParkes

Line: 1 to 1
 
META TOPICPARENT name="VELOSoftware"
VELO Simulation To Do List
Line: 12 to 12
 
  • Improving parametrisation of the pulse shape - make use of the ST tool ?
Changed:
<
<
  • ADC count calibration - electron to ADC calibration is assumed to be linear in simulation, data shows this is clearly not true.
>
>
  • ADC count calibration - electron to ADC calibration is assumed to be linear in simulation, data shows this is clearly not true. JC Wang volunteered
 
  • Improve the noise simulation - include the strip capacitance variation, compare with data

Revision 12007-08-16 - ChrisParkes

Line: 1 to 1
Added:
>
>
META TOPICPARENT name="VELOSoftware"
VELO Simulation To Do List

Please contact Tomasz and Chris if you want to volunteer!

  • The charge deposited in the silicon as calcuated by GEANT is incorrect. Study alternative GEANT parameter settings with delta ray production (if fix can be found can be applied to ST also). David Hutchcroft volunteered

  • Pulse Shape timing offset - taking account of TOF of particles for main event and spillover event. David Hutchcroft working on this

  • Add history information to the MC Hits, i.e. noise, signal, x-talk,spill-over - as already done for RICH and muons.

  • Improving parametrisation of the pulse shape - make use of the ST tool ?

  • ADC count calibration - electron to ADC calibration is assumed to be linear in simulation, data shows this is clearly not true.

  • Improve the noise simulation - include the strip capacitance variation, compare with data

  • Resolution retuning, once test-beam results final (currently tuning looks not too bad).

  • X-talk - current simulation has 5% symmetric x-talk, clearly incorrect. Wish to simulate any residual x-talk after FIR filter applied.

  • Noise threshold for full simulation of 4500 e- is applied - option can be set to 0 e- for noise studies, but adding a switch option would be neater.

  • Simulate Pedestal, Common Mode, x-talk - NOT for standard simulation but could be useful for studying TELL1 algorithms ?

  • Add radiation damage effects to silicon simulation (low priority at moment)

-- Main.parkes - 16 Aug 2007

 
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