Difference between revisions of "Dose Calculations and 137Cs Shot Log"

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==Nanodot OSL Quality Control==
 
==Nanodot OSL Quality Control==
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Revision as of 22:04, 12 October 2017

Source Calibration and Dose Rate Data

Date Initial Source Strength (Ci) Current Source Strength (Ci) Distance to Faceplate (cm) Exposure Rate (Roentgen/hr)°
6/27/17 20 9.3 30.5 17.691
9/11/17 20 9.3 30.5 17.606

°Calculated by TSO using [math]\dot R = \frac {\Gamma A }{ D^2} [/math] where [math]\boldsymbol{\Gamma} = 3.3 \frac {(cm^2)(R)}{(mCi)(hr)} [/math] , [math]\mathbf{A} = 9.3 Ci [/math] , [math]\mathbf{D}=(\text{Distance to faceplate} + 11.2cm) [/math]

There is an adjustment distance of 11.2cm which accounts for the distance from the faceplate to the [math] ^{137}Cs[/math] source

137Cs Shot Log

Dot OSLs

Date Run Number Run Time (s) Distance to Faceplate Number of OSLs in Stack Total Exposed Dose Measured Dose Adjusted Dose
9/8/17 1 5660 30cm 11 - - -
9/8/17 1 5660 30cm 11 - - -
9/26/17 2 4500 30cm 11 - - -
9/26/17 2 4500 30cm 11 - - -

Total dose calculated by [math]\int\limits_{t_0}^{t_f}\dot R\ dt [/math]

Nanodot OSL Quality Control

Date Run Number Run Time (s) Distance to Faceplate Number of OSLs Total Exposed Dose Measured Dose Adjusted Dose
10/12/17 1 284.04 30.5cm 3 - - -

Total dose calculated by [math]\int\limits_{t_0}^{t_f}\dot R\ dt [/math]



Reproducibility with 137Cs

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