July 2010 ntuple structure
- For each run, there are 2 ntuples: pedestal_runXXXX.root (containing pedestal data) and datafile_runXXXX.root (containting physics data)

- the latest ntuples can be found on pcdream.cern.ch in the folder:
/home/dreamtest/working/ntuple/v3/

- PLEASE REFER TO THE LOGBOOK FOR CHANNEL MAPPING you can find a scanned copy of the July 2010 logbook here.

- Depending on the run setup, the ADCs cabling may change and some branches may be missing in the relative ntuple.
 Tree: DREAM
type (*)
name
Meaning
Comment
i
 Nrunnumber run number
i TimeEvs Time of event in Seconds
i TimeEvu  Time of event in MicroSecond 
(elapsed time = TimeEvs + TimeEvu)
i Nevtda Number of data event
i
 CHSCA[16]
 Channels in Scaler
CHSCA[i]=0  Spill Count
CHSCA[i]=1  Physics Trigger Count
CHSCA[i]=2  Pedestal Trigger Count
CHSCA[i]=3  Event Count
CHSCA[i]=4  Cleared Event Count
i
 COUNTSCA[16]
 Count in Scaler Channels
F DATATH03[3]  Temperature in  each channel (°C) (3 Chs : 0 1 2 ) not present in 2010
s
 RAWTH03[3]
 Raw Temperature data in each channel
 not present in 2010
s
 HIGHREFTH03 High ref for Temperature Module
 not present in 2010
s
 LOWREFTH03 Low ref for Temperature
Module
  not present in 2010
B
 DATAOSC[2128] value of the sampled point (the number of points per channel is stored in PTSOSC)  the size of this array has changed since 2009 to account for two additional osc channels
i CHFOSC[4] Channel Flag
 (1 = channel enabled   0=  disabled) 
I POSOSC[4] Position for Oscilloscope Channels
(millidiv)
F
 PED_MEAN_OSC[4]
 Pedestal Mean Value of the sampled points
 Filled field only for physics runs
F
 PED_RMS_OSC[4]
 RMS Mean Value of the sampled points
 Filled field only for physics runs
i SCALEOSC[4] Scale of the Oscilloscope Channels
(mV/div)
i TDOSC[4] Time Diff for Oscilloscope Channels   (currently empty)
i PTSOSC Oscilloscope points
(usually 282 or 532) 
i SROSC Sampling rate of the Oscilloscope (Hz)
i CHADCN0[32] Channels in ADCN0   (32 Chs: 0 ..31)
i CHARGEADCN0[32] Charge in ADCN0 Channels
(ADC counts)
b
 OVERADCN0[32] Overflow bit in ADCN0
b
 UNDERADCN0[32] Underflow bit in ADCN0
F
 PED_MEAN_ADCN0[32]
 Pedestal Mean Value in ADCN0 Channels
(ADC counts)
 PED_MEAN_ADCN0[0] Ped Mean Value for Ch0
....
PED_MEAN_ADCN0[31] Ped Mean Value for Ch31
Filled Field only for physics runs
F
 PED_RMS_ADCN0[32]
 Pedestal RMS Value in ADCN0 Channels

 RMS_MEAN_ADCN0[0] Ped RMS Value for Ch0
....
RMS_MEAN_ADCN0[31] Ped RMS Value for Ch31
Filled Field only for physics runs
i CHADCN1[32] Channels in ADCN1 (V792AC module 1)
(32 Chs: 0 ..31) - 
i CHARGEADCN1[32] Charge in ADCN1 Channels
(ADC counts)
b
 OVERADCN1[32] Over bit in ADCN1
b
 UNDERADCN1[32] Under bit in ADCN1
F
 PED_MEAN_ADCN1[32]
 Pedestal MEAN Value in ADCN1 Channels
(ADC counts)
 PED_MEAN_ADCN1[0] Ped Mean Value for Ch0
....
PED_MEAN_ADCN1[31] Ped Mean Value for Ch31
Filled Field only for physics runs
F
 PED_RMS_ADCN1[32]
 Pedestal RMS Value in ADCN1 Channels
(ADC counts)
 PED_RMS_ADCN1[0] Ped RMS Value for Ch0
....
PED_RMS_ADCN1[31] Ped RMS Value for Ch31
Filled Field only for physics runs
i
 CHADCN2[32] Channels in ADCN2 (V792AC module 1)
(32 Chs: 0 ..31) -
i
 CHARGEADCN2[32] Charge in ADCN2
Channels
(ADC counts)
b
 OVERADCN2[32] Over bit in ADCN2
b
 UNDERADCN2[32] Under bit in ADCN2
F
 PED_MEAN_ADCN2[32] Pedestal MEAN Value in
ADCN2 Channels
(ADC counts)
F
 PED_RMS_ADCN2[32] Pedestal RMS Value in
ADCN1 Channels
(ADC counts)
i CHTDC[64] TDC Channel corresponding to the count
(16 Channels : 0...15)  		CHTDC[i]=0  UpStream DWC time Left
CHTDC[i]=1  UpStream DWC time Rigth
CHTDC[i]=2  UpStream DWC time Up
CHTDC[i]=3  UpStream DWC time Down 
i COUNTTDC[64] Counts in TDC Channels  
i VALIDTDC[64] 0=good count 1=corrupt count
i EDGETDC[64] Edge in TDC (0=falling 1=rising)
i
 N_X
 Number of X Coordinates in
UpStream DWC
 Max value for N_X is 1
F
 X[16]
 X Coordinates in UpStream DWC (arbitrary units)
i
 N_Y
 Number of Y Coordinates in
UpStream DWC
Max value for N_Y is 1
F
 Y[16]
 Y Coordinates in UpStream DWC (arbitrary units)
i
 N_X_OPT
 Number of X Coordinates in
 DWC
 not present in 2010
F
 X_OPT[16] X Coordinates in  DWC (mm) not present in 2010
i N_Y_OPT Number of Y Coordinates in
 DWC		 not present in 2010
F Y_OPT[16] Y Coordinates in  DWC (mm) not present in 2010

NOTES:

(*)  Types:
  I    :   a 32  bit signed integer (Int_t)
  i     :  a 32  bit unsigned integer (UInt_t)
  F   :  a 32  bit  floating point (Float_t)
  B   :  a  8   bit signed integer (Char_t)
  s    :  a 16 bit unsigned integer (UShort_t)
  S    : a 16 bit signed integer  (Short_t)
  b   : a 8 bit unsigned integer (UChar_t)

Michele Cascella