October 15, 2007 - Cosmic Telescope

From New IAC Wiki
Revision as of 21:49, 25 October 2007 by Oborn (talk | contribs)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search

Cosmic rates measured each hour when the telecope accepts cosmics which intersect the earth's surface at 330 degrees to the perpendicular.

Time Start Time Stop Time elapsed (hour) Singles Count (on top) Coinc. Counts Coinc. per hour [math]\sqrt{N}[/math] [math]\sqrt{(x_i-\bar{x})^2}[/math]
4:00 pm of 10/12 1:00 pm of 10/15 69 589347 2180 31.59 .6766



Cosmic rates measured each hour when the telecope accepts cosmics which intersect the earth's surface perpendicularly (defined as zero degrees). At this point in time though, the whole telescope was rotated 90 degrees. Now the angle distribution is perpendicular to that of what is has been. This has been done to get more of a 360 degree reading of the distribution.

Time Start Time Stop Time elapsed (hour) Singles Count (on top) Coinc. Counts Coinc. per hour [math]\sqrt{N}[/math] [math]\sqrt{(x_i-\bar{x})^2}[/math]
1:03 pm 2:03 pm 1 7691 120 120 10.95 4
2:03 pm 3:03 pm 1 14915 127 127 11.27 3
3:03 pm 4:03 pm 1 21913 125 125 11.18 1
[math]\sigma = \sqrt{\frac{\sum (x_i - \bar{x})^2}{N-1}}[/math]
1:03 pm 4:03 pm 3 21913 372 124 6.43 3.61