Re: Effect of modest pile-up on spectra

From: Patrick Slane (slane@head-cfa.harvard.edu)
Date: Sat Aug 11 2001 - 14:15:25 EDT

Hi Mallory:

> I just realized that the effects of even moderate pile-up
> fractions could have rather serious consequences for spectral fitting.

You are absolutely right, particularly since, as you say, the rapidly dropping
effective area at high energies gives the piled up events even more leverage.

There is a spectral fitting tool that can handle pile-up - the Interactive Spectral
Interpretation System (ISIS) developed by the CXC group at MIT. Have a look at

        http://space.mit.edu/CXC/ISIS/

I haven't actually given this a try, so I can't speak to how easy it is to
install or use, but it is certainly worth checking out.

Cheers,

-- Pat

This archive was generated by hypermail 2b29 : Thu Dec 13 2012 - 01:00:06 EST