Difference between revisions of "October 26, 2007 - Cosmic Telescope"

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Measurements were stopped early this day because of the need to test new equipment.  For all previous tests, we have been using a [http://www.iac.isu.edu/mediawiki/index.php/Coincidence_Counter. counter] placed in the [[Nim bin]] to keep track of coincidence counts but we are now connecting the [[Logic Unit]] into the computer so that the computer will keep track of the counts.  We are also working on connecting a unit that will time stamp each count.

Latest revision as of 20:29, 29 October 2007

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]
4:12 pm of 10/25 1:12 pm of 10/26 21 162659 1943 92.52 2.1



Cosmic rates measured each hour when the telecope accepts cosmics which intersect the earth's surface perpendicularly (defined as zero degrees).

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]
1:13 pm 2:13 pm 1 6783 129 129 11.36



Measurements were stopped early this day because of the need to test new equipment. For all previous tests, we have been using a counter placed in the Nim bin to keep track of coincidence counts but we are now connecting the Logic Unit into the computer so that the computer will keep track of the counts. We are also working on connecting a unit that will time stamp each count.