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

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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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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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{| 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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|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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|-
 
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|4:10 pm of 10/24 || 1:10 pm of 10/25 || 21 || 177418 || 2106 || 100.29 || 2.185 ||
 
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|}<br>
 
  
  
  
 
Cosmic rates measured each hour when the telecope accepts cosmics which intersect the earth's surface perpendicularly (defined as zero degrees).
 
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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{| border="5"
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|-
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! Start Time || End Time || Run 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>  
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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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|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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|-
 
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|1:11 pm || 2:11 pm || 1 || 8354 || 134 || 134 || 11.36 || 1.33
 
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|2:11 pm || 3:11 pm || 1 || 16403 || 129 || 129 || 11.36 || 3.67
 
 
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|3:11 pm || 4:11 pm || 1 || 24761 || 135 || 135 || 11.62 || 2.33
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|2:01 pm || 3:01 pm || 1 || 8944 || 9458 || -.02793 || 161 || 161 || 2.68 || 12.69 || 15.5
 
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|3:01 pm || 4:01 pm || 1 || 8167 || 8569 || -.02402 || 192 || 192 || 3.2 || 13.86 || 15.5
 
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| || || || || || || || <math>\sigma = \sqrt{\frac{\sum (x_i - \bar{x})^2}{N-1}}</math>
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| || || || || || || || || || ||<math>\sigma = \sqrt{\frac{\sum (x_i - \bar{x})^2}{N-1}}</math>
 
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|1:11 pm || 4:11 pm || 3 || 24761 || 398 || 132.67 || 6.65 || 4.55
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|2:01 pm || 4:01 pm || 2 || 17111 || 18027 || -.02606 || 353 || 176.5 || 2.94 || 9.39 || 21.92
 
|}<br>
 
|}<br>

Latest revision as of 22:33, 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).

Start Time End Time Run 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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