Difference between revisions of "AW Singles Prob Y88 2015"

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What is the background contribution to the above rates
 
What is the background contribution to the above rates
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{| border="1"  |cellpadding="20" cellspacing="0
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|-
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| Days ||<math>T_{1/2}</math> ||  (898 keV) Background||  (1836 keV)Backgroun||  UCR || (898 keV) Integral Eff Cor||  (1836 keV) Integral Eff Cor || Ratio
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|-
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| 108 ||  1.01 ||1.364 <math>\pm 0.062</math>  [[Media:Run7022_898_raw.png]] ||  <math>\pm</math> 0.048 [[Media:Run7022_1836_raw1.png]]  || 0.62 || 174.2 <math>\pm</math> 13.24 || 269.8 <math>\pm</math> 30.91 || 1.55
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|-
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| 159 ||  1.49 ||  0.8697  <math>\pm 0.055  </math> [[Media:Run7107_898_raw.png]]  ||  <math>\pm</math> 0.042 [[Media:Run7107_1836_raw.png]]  || 0.58 || 111.07 <math>\pm</math> 9.753 || 160.8 <math>\pm</math> 20.9 || 1.45
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|-
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|  229 || 2.15 ||  0.4733<math>\pm 0.058  </math> [[Media:Run7203_898_raw_ratio3.png]]  || <math>\pm</math> 0.059 [[Media:Run7203_1836_raw_nocut.png]] || 0.60 || 60.45 <math>\pm</math> 8.272 || 90.48 <math>\pm</math> 20.95 || 1.50
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|-
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|  245 ||  2.30 || 0.5807 <math>\pm 0.049 </math> [[Media:Run7235_898_raw.png]]  ||  <math>\pm</math> 0.032 [[Media:Run7235_1836_raw.png]] || 0.42 || 74.16 <math>\pm</math> 7.718 || 78.52 <math>\pm</math> 12.89 || 1.06
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|}
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Efficiency corrected plot of the two activities as a function of days
 
Efficiency corrected plot of the two activities as a function of days

Revision as of 18:28, 3 February 2015

Problem description:

The singles spectra production for the initial Y-88 activity is off by a factor of 2.
Right now the high energy line is a factor of 2 higher.


[math]N\left (\frac{1836}{898}\right ) =\frac{\frac{ UN(1836)}{.31}}{ \frac{UN(898)}{.78}}=\frac{5}{2} \frac{UN(1836)}{ UN(898)}=1 =[/math] Ratio


UCR[math]\equiv \frac{UN(1836)}{ UN(898)}=\frac{2}{5} = 0.4=[/math]ratio before efficiency correction

Days [math]T_{1/2}[/math] (898 keV) Integral Raw (1836 keV) Integral Raw UCR (898 keV) Integral Eff Cor (1836 keV) Integral Eff Cor Ratio
108 1.01 1.364 [math]\pm 0.062[/math] Media:Run7022_898_raw.png 0.8414 [math]\pm[/math] 0.048 Media:Run7022_1836_raw1.png 0.62 174.2 [math]\pm[/math] 13.24 269.8 [math]\pm[/math] 30.91 1.55
159 1.49 0.8697 [math]\pm 0.055 [/math] Media:Run7107_898_raw.png 0.5015 [math]\pm[/math] 0.042 Media:Run7107_1836_raw.png 0.58 111.07 [math]\pm[/math] 9.753 160.8 [math]\pm[/math] 20.9 1.45
229 2.15 0.4733[math]\pm 0.058 [/math] Media:Run7203_898_raw_ratio3.png 0.2822 [math]\pm[/math] 0.059 Media:Run7203_1836_raw_nocut.png 0.60 60.45 [math]\pm[/math] 8.272 90.48 [math]\pm[/math] 20.95 1.50
245 2.30 0.5807 [math]\pm 0.049 [/math] Media:Run7235_898_raw.png 0.2449 [math]\pm[/math] 0.032 Media:Run7235_1836_raw.png 0.42 74.16 [math]\pm[/math] 7.718 78.52 [math]\pm[/math] 12.89 1.06


What is the background contribution to the above rates

Days [math]T_{1/2}[/math] (898 keV) Background (1836 keV)Backgroun UCR (898 keV) Integral Eff Cor (1836 keV) Integral Eff Cor Ratio
108 1.01 1.364 [math]\pm 0.062[/math] Media:Run7022_898_raw.png [math]\pm[/math] 0.048 Media:Run7022_1836_raw1.png 0.62 174.2 [math]\pm[/math] 13.24 269.8 [math]\pm[/math] 30.91 1.55
159 1.49 0.8697 [math]\pm 0.055 [/math] Media:Run7107_898_raw.png [math]\pm[/math] 0.042 Media:Run7107_1836_raw.png 0.58 111.07 [math]\pm[/math] 9.753 160.8 [math]\pm[/math] 20.9 1.45
229 2.15 0.4733[math]\pm 0.058 [/math] Media:Run7203_898_raw_ratio3.png [math]\pm[/math] 0.059 Media:Run7203_1836_raw_nocut.png 0.60 60.45 [math]\pm[/math] 8.272 90.48 [math]\pm[/math] 20.95 1.50
245 2.30 0.5807 [math]\pm 0.049 [/math] Media:Run7235_898_raw.png [math]\pm[/math] 0.032 Media:Run7235_1836_raw.png 0.42 74.16 [math]\pm[/math] 7.718 78.52 [math]\pm[/math] 12.89 1.06


Efficiency corrected plot of the two activities as a function of days


A_W_thesis#Final_problems_to_sort_out

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