titles_pmtt


                              Titles:  PMTT
                              =============
 
Contact:  D. Wark, Oxford.
 

 
Titles Files
------------
 
pmt_response.dat
 
 
Verification
------------
 
 
Description
-----------
 
   This bank contains the data on the PMT timing and noise performance.
 
Data Words
----------
 
        Fixed length Database Header.  See titles_dbhdr.html
 
**For PMTT 1 (Information generic to all models)
This bank is mapped into common
 
Line     Variable    	[Symbolic Command] Description
----     --------    	------------------------------
 
  1	  T_TRANSIT  	Average transit time accross tube
  2       TJITT      	Variance of the transit time spread distribution (ns)
                        See warning.
  3	  TNOIS	     	[pmt_nois_rate] Mean PMT noise rate in Hz.
 
Warning
=======
 
TJITT is no longer used in the simulation of the PMT response, since that is
now represented by a skewed Gaussian function. Still, we require to assume
something for fitters in order to compute a chi-squared, so TJITT has been
retained for that purpose, as an "equivalent symmetric gaussian" of the current
model.
 

Go Back to the Snoman Companion Top Page