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We do not yet have a script to create channel boundary plots.
The following recipe works:
- Create an ascii file with the channel probabilities as a
function of energy (this is the MATRIX column of the response matrix)
using fdump with parameters as follows
fdump infile="new_resp.fits" outfile=new_resp.txt clobber=yes
prhead=no showcol=no showrow=no showunit=no rows="-" column=MATRIX
- Use the awk script awk_chan (included with this distribution) to
shuffle the matrix elements so that the first 729 lines are the
probablitity that a photon of a given energy will fall in channel 1,
the next 729 lines are the
probablitity that a photon of a given energy will fall in channel 2
- Read the file created by awk_chan and the corresponding energy
array (the file ``energies'' supplied with this distribution) into
IDL. Within IDL it is possible to define 15 channel arrays.
For example, c1=MATRIX(0:728) will define a new array, c1, which
contains the first 729 elements of the array MATRIX. It is then
possible to add channel probabilities in any desired combination.
Mon May 11 15:21:25 EDT 1998