This is the typical ion chamber used on 4-ID-D

It is manufactured by Advanced Design Consulting in Ithaca NY.

  The overall length of the ion chamber along the beam direction is 95 mm and the length of the charged collection plates is 60 mm.

This ionchamber gives the following conversion factors from counts to photons per second with current ampliphier gain of 100 nA/V and (x2) gain on the VtoF converter.
 
 

data file data file
data file

 
 
 
 
 
 
Posted by: Becky Gagnon ( gagnon@aps.anl.gov)
Content by: Jonathan Lang ( lang@aps.anl.gov)

Posted by: Becki Gagnon ( gagnon@aps.anl.gov)
Content by: Jonathan Lang ( lang@aps.anl.gov)