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h2. Merit Tuple Variables

The complete list of merit tuple variables is here: [http://glast-ground.slac.stanford.edu/workbook/pages/gleamOvrvw/pr_summaryNtuples.htm]

Here are some plots for the most relevent ACD variables:

h3. AcdTileCount, AcdRibbonCount:  Number of Tiles and Ribbons in the Event

!nTile.gif|thumbnail!

h3. AcdNoTop, AcdNoSideRowX \[0-3\]:  Number of tiles in the event (for the top of the ACD and by row)

 !nTileAll.gif|thumbnail!
 

h3. AcdActiveDistance3D:  Distance to the closest edge of tile.  Positive is inside tile, negative is outside tile.

 !AcdDist.gif|thumbnail!

h3.     AcdActDist3DTop, AcdActDist3DSideRowX \[0-3\].  Best active distance for the top and various side rows of the ACD

!AcdDist_All.gif|thumbnail! 

h3. AcdRibbonActDist.  Best Active distance to an Acd Ribbon

!AcdDist_rib.gif|thumbnail!
 

h3. AcdCornerGap:  Distance to closest gap along side of ACD, signed to match the direction of the overlap at the corner

!AcdCornerGap.gif|thumbnail!

h2.  SVAC tuple variables

The complete list of svac tuple variables is here: [ftp://ftp-glast.slac.stanford.edu/glast.u01/svac_workshop/Svac_ntuple_description/new/html/index.html]

Here are some plots for the most relevent ACD variables:

h3.  AcdNumDigis: Total number of digis in the event (Tiles and Ribbons)

!AcdNumDigis.gif|thumbnail!
 

h3. Acd10Ids\[10\]:  Tiles ids of the first (by readout order) 10 digis in the event

!Acd10Ids.gif|thumbnail!
 

h3.  AcdPha\[604\]\[2\] and AcdMips\[604\]\[2\]:  Pulse Height in pha counts and calibrated to MIPs, by tileid, pmt

!AcdMips.gif|thumbnail!

h3. AcdNumTkrIntSec: Number of intersection between tracks and ACD

!nAcdTkrInter.gif|thumbnail!

h3. AcdTkrIntSecTkrIndex\[20\], AcdTkrIntSecTileId\[20\]:  Track Index and Tile id for the first 20 intersections of tracks with the ACD


h3.

!AcdTkrInterId.gif|thumbnail!



h3. AcdTkrIntSecGlobalX\[20\] {
(also Y,Z}): Position in global cooridinates when the track crosses the ACD
!AcdTkrInterPos.gif|thumbnail!
  

h3.  AcdTkrIntSecArcLengthToIntSec AcdTkrIntSecArcLengthToIntSec\[20\]:   Distance from first (last) hit to the intersection with the ACD.   Postivie for up, negative for down
!AcdTkrISectArc.gif|thumbnail!
  

h3. AcdTkrIntSecPathLengthInTile\[20\]:   Distance traveled inside active ACD volume.
!AcdTkrISectPath.gif|thumbnail!
  

h3.  AcdTkrIntSecTileHit AcdTkrIntSecTileHit\[20\]:   Hit code for tile tile  ( CN0B \| CN0A \| VetoB \| VetoA \|  PHA_B \| PHA_B )
!AcdTkrISectHitCode.gif|thumbnail!
  

h3.  AcdTkrIntSecLocalX AcdTkrIntSecLocalX\[20\] {(also Y}):   Position of hit in local coordinates (to Tile Center)
!AcdTkrISect_Local.gif|thumbnail!
  

h3.  AcdPocaNbrTrack1 AcdPocaNbrTrack1 {also 2}:   Number of hit tiles and ribbons within 20cm of track 1 {or 2}

  

h3.  AcdPocaTileID AcdPocaTileID\[2\]\[6\]:   Ids of up to six hit tiles or ribbons that a track passed with 20cm of, sorted by distance


  

h3. AcdPocaDoca\[2\]\[6\]:    Distance of Closest approach between track and up to 6 tiles / ribbons, sorted by distance


  

h3. AcdPocaX\[2\]\[6\] {(also Y,Z})
 

:  Point of closest approach (along track) to hit tile or ribbon, global cooridinates

 

h3.  AcdPocaSlopeX\[2\]\[6\] 
{also Y}
 

:   Direction of track at point of closest approach

 

h3.  AcdMaxActiveDistId :  Acd id of tile with the best (largest) active distance

 

h3.  AcdRibbonActiveDistId: Acd id of the ribbon with the best (largest) active distance