Event Screening and Selection on Data from the GLAST Balloon Prototype

Details Event Screening and Selection on Data from the GLAST Balloon Prototype Event Screening and Selection on Data from the GLAST Balloon Prototype

Apr 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aps..aprb17047k&link_type=abstract

American Physical Society, April Meeting, Jointly Sponsored with the High Energy Astrophysics Division (HEAD) of the American As

Astronomy and Astrophysics

Astrophysics

Scientific paper

The triggering and data analysis for the GLAST balloon prototype, like that of the GLAST gamma-ray telescope planned for launch in 2006, is much more flexible than was the case for the CGRO/EGRET instrument. Furthermore, the much larger data volume expected from GLAST/LAT precludes the type of manual event review that was done for EGRET data. Thus a great deal of attention must be given to the software ``cuts'' that are used to eliminate the huge background of events produced by charged cosmic rays without reducing significantly the efficiency for gamma-ray detection. Event screening on data from the July 2001 GLAST balloon flight has reduced the background so that a good measurement of the atmospheric gamma rays is possible, and we are starting on the much more difficult problem of pushing the background down to a level that (in the absence of atmospheric secondaries) would allow measurements of cosmic gamma-ray fluxes. We will describe the types of cuts being used, as well as their effects on both the background and the gamma-ray efficiency. The performance of the prototype as an imaging gamma-ray telescope will be demonstrated using Monte Carlo simulations in addition to the balloon data.

Affiliated with

Also associated with

No associations

Rating

Event Screening and Selection on Data from the GLAST Balloon Prototype does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Event Screening and Selection on Data from the GLAST Balloon Prototype, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Event Screening and Selection on Data from the GLAST Balloon Prototype will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1535581