Difference between revisions of "November 1, 2007 - Cosmic Telescope"

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The Telescope was moved to a different location yesterday.  It was moved about8-9 feet from it's original location.  We are not sure whether this will change the rates at all so we are just testing it out now.  Dr. Forest hopes to be able to use it with th edrift chamber that we recently recieved and have been working on.
 
The Telescope was moved to a different location yesterday.  It was moved about8-9 feet from it's original location.  We are not sure whether this will change the rates at all so we are just testing it out now.  Dr. Forest hopes to be able to use it with th edrift chamber that we recently recieved and have been working on.
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Cosmic rates measured each hour when the telecope accepts cosmics which intersect the earth's surface at 330 degrees to the perpendicular.
 
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{| border="5"
 
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! Date || Start Time || End Time ||  Singles Counts Top (N_1) || Singles Counts Bottom (N_2)|| <math>\frac{N_1-N_2}{N_1+N_2}</math> || Coincidence Counts || Coinc/Hour || Coinc/min || <math>\sqrt{N}</math>
 
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|4: pm of 11/ || 1: pm of 11/ || 21 ||  ||  ||  || || || ||
 
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|}<br>
 
  
  
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| || || || || || || || || || ||<math>\sigma = \sqrt{\frac{\sum (x_i - \bar{x})^2}{N-1}}</math>
 
| || || || || || || || || || ||<math>\sigma = \sqrt{\frac{\sum (x_i - \bar{x})^2}{N-1}}</math>
 
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|2:01 pm || 4:01 pm || 2 || 17111 || 18027 || -.02606 || 353 || 176.5 || 2.94 || 9.39 ||
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|2:01 pm || 4:01 pm || 2 || 17111 || 18027 || -.02606 || 353 || 176.5 || 2.94 || 9.39 || 21.92
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|}<br>
 
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Cosmic rates measured each hour when the telecope accepts cosmics which intersect the earth's surface perpendicularly (defined as zero degrees).
 
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{| border="1" cellpadding="20" cellspacing="0"
 
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|-
 
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|Time Start
 
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|Time Stop
 
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|Time elapsed (hour)
 
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|Singles Count on Top
 
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|Singles Counts on Bottom
 
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|Coinc. Counts
 
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|Coinc. per hour
 
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|<math>\sqrt{N}</math>
 
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|<math>\sqrt{(x_i-\bar{x})^2}</math>
 
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|2:01 pm || 3:01 pm || 1 || 8944 || 9458 || 161 || 161 ||  ||
 
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|3:01 pm || 4:01 pm || 1 || 17111 || 18027 || 192 || 192 || ||
 
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| || || || || || || || || <math>\sigma = \sqrt{\frac{\sum (x_i - \bar{x})^2}{N-1}}</math>
 
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|2:01 pm || 4:01 pm || 2 || 17111 || 18027 || 353 ||  ||  ||
 
 
|}<br>
 
|}<br>

Revision as of 21:30, 27 November 2007

The Telescope was moved to a different location yesterday. It was moved about8-9 feet from it's original location. We are not sure whether this will change the rates at all so we are just testing it out now. Dr. Forest hopes to be able to use it with th edrift chamber that we recently recieved and have been working on.


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

Date Start Time End Time Singles Counts Top (N_1) Singles Counts Bottom (N_2) [math]\frac{N_1-N_2}{N_1+N_2}[/math] Coincidence Counts Coinc/Hour Coinc/min [math]\sqrt{N}[/math] [math]\sqrt{(x_i-\bar{x})^2}[/math]
2:01 pm 3:01 pm 1 8944 9458 -.02793 161 161 2.68 12.69 15.5
3:01 pm 4:01 pm 1 8167 8569 -.02402 192 192 3.2 13.86 15.5
[math]\sigma = \sqrt{\frac{\sum (x_i - \bar{x})^2}{N-1}}[/math]
2:01 pm 4:01 pm 2 17111 18027 -.02606 353 176.5 2.94 9.39 21.92


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