ML102000463

Gamma Spectrum Analysis Oyster Creek

ML102000463
Person / Time
Site:	Oyster Creek
Issue date:	04/25/2009
From:	- No Known Affiliation
To:	Office of Information Services
References
FOIA/PA-2009-0214
Download: ML102000463 (5)

Text

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• GAMMA SPECTRUM ANALYSIS

• OYSTER CREEK NUCLEAR GENERATING STATION CHEMISTRY DEPARTMENT Detector Name  : DET02 Report Generated On  : 4/25/09 4:36:37 AM Spectral Data File Name

• C: \PCNT2K\CAMFILES\ILSOLMDA

\2000079.CNF C-11--, _ -(3 r=- ?-

Sample Title I-L Solid Releas 1

Sample Description  : soil n of cst 5' User ID  : nc225 Sample Type  : 20 Sample Geometry l-L Marinelli 1

Peak Locate Threshold  : 3.00 Peak Locate Range (in channels)  : 1 - 4096 Peak Area Range (in channels) 1100 - 4096 Identification Energy Tolerance  : 1.000 keV Sample Size

• 1550.00 grams Sample Taken On  : 4/25/09 4:24:24 AM Acquisition Started  : 4/25/09 4:29:26 AM Decay Time  : 5.04E+000 Minutes Live Time

• 730.0 Seconds Real Time  : 730.1 Seconds Dead Time 0.02 %

Energy Calibration Used Done On 3/21/08 Efficiency Calibration Used Done On 3/21/08

Background Subtract Report 4/25/09 4:36:38 AM Page 2

B*

• • • • B AC K GRO U ND SUB TR A CT R EP OR T

• • WW Detector Name: DET02 Sample Title: I-L Solid Releas Peak Analysis Performed on: 4/25/09 4:36:37 AM Peak Energy Original Orig. Area Ambient Backgr. Subtracted Subtracted No. (keY) Area Uncert. Background Uncert. Area Uncert.

1 -238.61 4. 53E+001 12.93 4.53E+001 1.29E+001 2 351.62 4 .30E+001 11.47 4.30E+001 1.15E+001 3 583.33 1. 81E+001 8.19 1.81E+001 8.19E+000 4 609.24 2. 63E+001 6.67 2.63E+001 6.67E+000 5 661.51 2.78E+001 6.57 2.78E+001 6.57E+000 6 911.24 1.04E+001 4.32 1.'04E+001 4.32E+000 7 1461.60 3 .69E+001 6.27 3.69E+001 6.27E+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.000 sigma

Fi Nuclide MDA Report 4/25/09 4:36:38 AM Page 3

N U C L I D E M D A R E P 0 R T Detector Name: DET02 Sample Geometry: 1-L Marinelli Sample Title: 1-L Solid Releas Nuclide Library Used: C:\GENIE2K\CAMFILES\AnSolMDA.NLB Nuclide Energy Yield Line MDA Nuclide MDA Activity Name (keV) (%) (uCi/gram) (uCi/gram)

(uCi/gram)

CS-134 563.23 8.38 7. 20E-007 7. 05E-008

5. 95E-008 569 .32 15 .43 5.15E-007

1. 32E-007 604.70 97.60 7. 05E-008

8. 18E-009 795.84 85 .40 1. 31E-007 1.94E-008 801.93 8.73 8. 82E-007'

2. 57E-007 1365.15 3 .04 3. 31E-006

7. 05E-007

+ CS-137 661.65* 85.12 9. 14E-008 9. 14E-008 1.21E-007

+ = Nuclide identified during the nuclide identification

• = Energy line found in the spectrum

>= MDA value not calculated

@= Half-life too short to be able to perform the decay correction

'~1 Interference Corrected Activity Report 4/25/09 4:36:38 AM Page 4

• NIFN

• Sample Title: 1-L Solid Releas Nuclide Library Used: C:\GENIE2K\CAMFILES\AnSolMDA.NLB IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/gram) Uncertainty K-40 0.906 1460.81* 10.67 2.62E-006 4.50E-007 CS-137 0.997 661.65* 85 .12 1.21E-007 2.88E-008 BI-211 0.585 351.10* 12 .20 7 . 29E-007 1.95E-007 404.80 4.10 PB-212 0.67.4 87.20 6.30 89.80 1.75 238.63* 44 .60 1.49E-007 4.26E-008 300.09 3 .41 BI-214 0.660 609.31* 46.30 1.96E-007 4.98E-008 934.06 3 .21 1764.49 15.80

• = Energy line found in the spectrum.

@= Energy line not used for Weighted Mean Activity Energy Tolerance : 1. 000 keV Nuclide confidence index threshold = 0.30 Errors quoted at 1.000 sigma

Interference Corrected Activity Report 4/25/09 4:36:38 AM Page 5

• INTERFERENCE CORRECTED REPORT

• Nuclide Wt mean Wt mean Nuclide Id Activity Activity Name Confidence (uCi/gram) Uncertainty K-40 0.906 2. 62E-006 4.50E-007 CS-137 0.997 1. 21E-007 2.88E-008 BI-211 0.585 7.29E-007 1.95E-007 PB-212 0.674 1.49E-007 4.26E-008 BI-214 0.660 1.96E-007 4.98E-008 Total Activity 3.82E-006

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.000 sigma

• • • • • UNIDENTIFIED PEAKS Peak Locate Performed on:* 4/25/09 4:36:37 AM Peak Locate From Channel: 100 Peak Locate To Channel: 4096 Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second  % Uncertainty 3 583.33 2 .48E-002 45.25 6 911.24 1.42E-002 41.68 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.000 sigma