ML102000461

Gamma Spectrum Analysis Oyster Creek

ML102000461
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: ML102000461 (5)

Text

V , -' I-* ** * * * * * * ** * * * * * * * * ** * * * * * * * * * * * * * * * *GAMMA SPECTRUM ANALYSIS* OCGS OYSTER CREEK NUCLEAR GENERATING STATION CHEMISTRY DEPARTMENT Detector Name: DET01 Report Generated On Spectral Data File Name\2000077.CNF Sample Title Sample Description User ID Sample Type Sample Geometry: 4/25/09 4:07:58 AM: C:\PCNT2K\CAMFILES\ILSOLMDA s-co 4 1-L Solid Releas: soil n of cst 3nc226 20 1-L Marinelli Peak Locate Threshold Peak Locate Range (in channels)Peak Area Range (in channels).Identification Energy Tolerance Sample Size Sample Taken On Acquisition Started Decay Time Live Time Real Time Dead Time 3.00 1 -4096 100 -4096 1.000 keV 1547.00 grams 4/25/09 3:45:47 AM 4/25/09 3:50:49 AM 5.04E+000 Minutes 1327.0 Seconds 1327.7 Seconds 0.05 %Energy Calibration Used Done On Efficiency Calibration Used Done On 1/8/09 1/8/09 Page Background Subtract Report 2 4/25/09 4:07:58 AM B***** B AC K GR OU ND S UB TR A CT R EP OR T Detector Name: DET01 Sample Title: I-L Solid Releas Peak Analysis Performed on: 4/25/09 4:07:58 AM Peak Energy Subtracted No. (keV)Uncert.1 238.65 1.60E+001 2 351.65 1.01E+001 3 582.61 7.15E+000 4 609.11 7.67E+000 5 661.01 7.07E+000 6 1172.79 8.92E+000 7 -1332.21 7.89E+000 Original Orig. Area Area Uncert.Ambient Backgr.Background Uncert.7. 99E+001 3 .61E+001 3. 19E+001 2 .77E+001 1. 83E+001 6 .73E+001 5. 25E+001 15.97 10. 11 7.15 7.67 7.07 8.92 7.89 Subtracted Area 7.99E+001 3.61E+001 3.19E+001 2.77E+001 1.83E+001 6.73E+001 5.25E+001 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.000 sigma Nuclide MDA Report 3 4/25/09 4:07:58 AM Page N U C L I D E M D A R E P 0 R T**WW Detector Name: Sample Geometry: Sample Title: DETO0 I-L Marinelli 1-L Solid Releas Nuclide Library Used: C: \GENIE2K\CAMFILES\AnSolMDA.NLB Activity (uCi/gram]

Nuclide Name CS-134 8. 59E-009 2. 42E-008 1. 70E-008 1.19E-008 3.21E-008 2. 06E-007+ CS-137 6. 98E-008 Energy (keV)563.23 569.32 604.70 795 .84 801.93 1365.15 661.65*Yield%)8.38 15.43 97.60 85.40 8.73 3.04 85.12 Line MDA (uCi/gram)

7. 44E-007 3. 42E-007 8. 85E-008 9. 63E-008 9 99E-007 1. 91E-006 1. IOE-007 Nuclide MDA (uCi/gram) 8.85E-008 1.10E-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 Interference Corrected Activity Report 4 4/25/09 4:07:58 AM Page*** N U C L I D E"**IDENTIFICATION REPORT*Sample Title: I-L Solid Releas Nuclide Library Used: C:\GENIE2K\CAMFILES\AnSolMDA.NLB IDENTIFIED NUCLIDES Nuclide Id Energy Name Confidence (keV)CO-60 0.979 1173.22*1332.49*CS-137 0.937 661.65*BI-211 0.583 351.10*404.80 PB-212 0.709 87.20 89.80 238.63*300.09 BI-214 0.657 609.31*934.06 1764.49 Yield (%)100.00 100.00 85. 12 12.20 4.10 6.30 1.75 44. 60 3 .41 46.30 3.21 15.80 Activity (uCi/gram)

3. 68E-007 3.21E-007 6. 98E-008 5. 07E-007 2.11E-007 1.79E-007 Activity Uncertainty 4.92E-008 4.87E-008 2.70E-008 1.43E-007 4.24E-008 4.98E-008* = 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 5 4/25/09 4:07:58 AM Page I N T E R F E R E N C E C O R R E C T E D R E P O R T Nuclide Nuclide Id Name Confidence CO-60 CS-137 BI-211 PB-212 BI-214 0.979 0.937 0.583 0.709 0.657 Wt mean Activity (uCi/gram)

3. 44E-007 6.,98E-008

5. 07E-007 2. 11E-007 1.79E-007 Wt mean Activity Uncertainty 3.46E-008 2.70E-008 1.43E-007 4.24E-008 4.98E-008 Total Activity 1.31E-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* U N I D E N T I F I E D P E A K S Peak Locate Performed on: 4/25/09 Peak Locate From Channel: 100 Peak Locate To Channel: 4096 4:07:58 AM Peak Energy No. (keY)3 582.61 M = First peak in a m = Other peak in a F = Fitted singlet Peak Size in Peak CPS Counts per Second % Uncertainty 2 .40E-002 22.44 multiplet region multiplet region Errors quoted at 1.000 sigma