Difference between revisions of "Mcsmear updates"

From GlueXWiki
Jump to: navigation, search
Line 59: Line 59:
 
| energy smearing || -> || 1.0 + Gaussian( FCAL_PHOT_STAT_COEF / sqrt(E) )
 
| energy smearing || -> || 1.0 + Gaussian( FCAL_PHOT_STAT_COEF / sqrt(E) )
 
|}
 
|}
 +
 +
== BCAL ==
 +
 +
TBD
  
 
== TOF ==  
 
== TOF ==  
Line 88: Line 92:
 
|}
 
|}
  
 +
== TAGM ==
  
== BCAL ==
+
fixed in mcsmear
 +
 
 +
{| class="wikitable"
 +
! name !! value !! comment
 +
|-
 +
| TAGM_TSIGMA || 0.200  || TDC smearing factor
 +
|-
 +
| TAGM_FADC_TSIGMA || 0.350 || fADC smearing factor
 +
|-
 +
| TAGM_NPIX_PER_GEV || 1.e5 || poisson smearing
 +
|}
 +
 
 +
== TAGH ==
 +
 
 +
fixed in mcsmear
 +
 
 +
{| class="wikitable"
 +
! name !! value !! comment
 +
|-
 +
| TAGH_TSIGMA || 0.350 || TDC smearing factor
 +
|-
 +
| TAGH_FADC_TSIGMA || 0.450 || fADC smearing factor
 +
|-
 +
| TAGH_NPIX_PER_GEV || 5.e5 || poisson smearing
 +
|}
 +
 
 +
== PS ==
 +
 
 +
fixed in mcsmear
 +
 
 +
{| class="wikitable"
 +
! name !! value !! comment
 +
|-
 +
| PS_SIGMA || 0.200 || time smearing factor
 +
|-
 +
| PS_NPIX_PER_GEV || 1.e5 || poisson smearing
 +
|}
 +
 
 +
== PSC ==
 +
 
 +
fixed in mcsmear
 +
 
 +
{| class="wikitable"
 +
! name !! value !! comment
 +
|-
 +
| PSC_SIGMA || 0.200  || time smearing factor
 +
|-
 +
| PSC_PHOTONS_PERMEV || 5.e5 || Gaussian smearing
 +
|}

Revision as of 23:10, 21 April 2015

Current Settings

General Comments

Smearing is performed by adding a Gaussian function, unless otherwise described.

TRIGGER_LOOKBACK_TIME = -100 ns

CDC

name value comment
CDC_TIME_WINDOW 1000. readout window (ns)
CDC_PEDESTAL_SIGMA 50.0 charge smearing factor
CDC_THRESHOLD_FACTOR 4.0 sparsification threshold = CDC_THRESHOLD_FACTOR* CDC_PEDESTAL_SIGMA
CDC_TDRIFT_SIGMA 2.8181818181818e-9 drift time smearing width*1.0e-9 (ns)

[more in hdgeant]

Noise parameterization from 2007.

FDC

name value comment
FDC_TIME_WINDOW 1000. readout window (ns)
FDC_CATHODE_SIGMA 150.0 cathode charge smearing factor
FDC_PED_NOISE -> charge smearing factor = -0.0938 + 0.0485*FDC_CATHODE_SIGMA
FDC_THRESHOLD_FACTOR 4.0 sparsification threshold = FDC_THRESHOLD_FACTOR * FDC_PED_NOISE
FDC_TDRIFT_SIGMA 1.0-9 drift time smearing width*1.0e-9 (ns) [both wire and cathode]

[more in hdgeant]

Noise parameterization from 2007 [only wires].

FCAL

name value comment
FCAL_BLOCK_THRESHOLD 0.02 (GeV)
time smearing 200. fixed in mcsmear (ps)
FCAL_PHOT_STAT_COEF 0.035
energy smearing -> 1.0 + Gaussian( FCAL_PHOT_STAT_COEF / sqrt(E) )

BCAL

TBD

TOF

name value comment
TOF_SIGMA 0.155563 time smearing factor
TOF_PHOTONS_PERMEV 8000. conversion factor
dE smearing -> Gaussian(sqrt(npe))
TOF_THRESH_MEV 0 threshold on smeared dE

START COUNTER

name value comment
START_SIGMA 0.3 time smearing factor
START_PHOTONS_PERMEV 200. conversion factor
dE smearing -> Gaussian(sqrt(npe))
STC_THRESH_MEV 0 threshold on smeared dE

TAGM

fixed in mcsmear

name value comment
TAGM_TSIGMA 0.200 TDC smearing factor
TAGM_FADC_TSIGMA 0.350 fADC smearing factor
TAGM_NPIX_PER_GEV 1.e5 poisson smearing

TAGH

fixed in mcsmear

name value comment
TAGH_TSIGMA 0.350 TDC smearing factor
TAGH_FADC_TSIGMA 0.450 fADC smearing factor
TAGH_NPIX_PER_GEV 5.e5 poisson smearing

PS

fixed in mcsmear

name value comment
PS_SIGMA 0.200 time smearing factor
PS_NPIX_PER_GEV 1.e5 poisson smearing

PSC

fixed in mcsmear

name value comment
PSC_SIGMA 0.200 time smearing factor
PSC_PHOTONS_PERMEV 5.e5 Gaussian smearing