GEANT hits by TZ titles

Similar to the GEAN data block, CMSIM also offers a standard way of building sensitive detectors for hits and digitisations using TZ titles. This is performed by the routine DCDETX which interprets the title block DETX and takes appropriate actions.

The title block for DETX has the following structure:

 
*DO  DETX  <idn>   -A4CW -c1/80     #. title header line
 :SDET          #. Subdetector keyword name (e.g. TRAK)
   ...
  followed by blocks of data with a 4-character keyword and values
   ...

The numeric identifier <idn> contains type of hits and digitisation required (default is 1). The title block is selected if the requested action in SETS data card for the sub-detector keyword SDET matches with the numeric identifier of the block.

The following keywords can be used:

The constants which follow each keyword are the same as the call parameters required by the respective GEANT3 routine.

The parameters which follow each keyword are defined as follows:

• DETV/DET /DETN/DETA
  • set name
  • detector name, followed by routine specific parameters:
  • number of volumes, IDTYPE, NWHI, NWDI, list of (volume names, NBITS) (GSDET). The control cards DET and DETN differ in specifying NBITS. The control card DET specifies NBITS explicitly, whereas DETN specifies the maximum volume number from which NBITS can be calculated.
  • or IDTYPE, NWHI, NWDI (GSDETV)
  • or alias name, NWHI, NWDI (GSDETA)
• DETH/DETD/DETT/DETU
  • set name
  • detector name, followed by routine specific parameters:
  • number of hit elements, their name, origin, factor, # of bits (GSDETH)
  • or number of digit elements, their names and # of bits (GSDETD)
  • or number of trigger elements, their names and # of bits (GSDETT)
  • or number of user elements, the user array (GSDETU)
• HITS/RHIT
  • set name
  • detector name, the hit elements being taken from the standard banks