Difference between revisions of "DeepBlueMarin 04222013"

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Line 43: Line 43:
 
| Coin Size|| 333 keV || 356 keV || 333/356 ratio  
 
| Coin Size|| 333 keV || 356 keV || 333/356 ratio  
 
|-
 
|-
| Large  ||  [[File:L333_04222013.png| 200 px]] || [[File:L356_04222013.png| 200 px]] || 5397/3672=1.06
+
| Large  ||  [[File:L333_04222013.png| 200 px]] || [[File:L356_04222013.png| 200 px]] || 5397/3672=1.47
 
|-
 
|-
 
| Medium  ||  [[File:M333_04222013.png| 200 px]] || [[File:M356_04222013.png| 200 px]] || 2062/1432=1.44  
 
| Medium  ||  [[File:M333_04222013.png| 200 px]] || [[File:M356_04222013.png| 200 px]] || 2062/1432=1.44  

Revision as of 17:59, 9 May 2013

Irradiation of Silver coins from Deep Blue Marin performed on April 22, 2013

Large Coin

Raw Spectrum

04222013 LargeCoin Raw.png

Calibration

04222013 LargeCoin Cal.png 04222013 LargeCoin RawMainPeak.png 04222013 LargeCoin CalMainPeak.png
Linear fit using several sources Zoom in to the most intense line The most intense line seems to be from positron annihilation


Energy Calibrated spectrum

04222013 LargeCoin EnergySpectrum.png


Peak Ratios

Ratio of 511 and

Silver lines
Coin Size 511/451 ratio 511/748 ratio 511/1046 ratio
Large 87740/6639 =13.2 87740/2962=29.6 87740/2803 = 31.3
Medium 31950/2938 =10.9 31950/1239 =25.8 31950/1283=24.9
Small 87090/8184=10.6 87090/3790 =22.98 87090/3578=24.34


Gold lines
Coin Size 333 keV 356 keV 333/356 ratio
Large L333 04222013.png L356 04222013.png 5397/3672=1.47
Medium M333 04222013.png M356 04222013.png 2062/1432=1.44
Small S333 04222013.png S356 04222013.png 5552/3083 =1.81

Rate normalized spectrum

PAA_DeepBlueMarine