ML102000460

Gamma Spectrum Analysis Oyster Creek

ML102000460
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: ML102000460 (5)

Text

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GAMMA S P ECTRUM ANALYSIS OYSTER CREEK NUCLEAR GENERATING STATION CHEMISTRY DEPARTMENT Detector Name  : DET02 Report Generated On  : 4/25/09 2:18:15 AM Spectral Data File Name  : C:\PCNT2K\CAMFILES\ILSOLMDA

\2000075.CNF I. -ccI-?

Sample Title Sample Description I-L Solid Releas soil n of cst 1'

+ .N-. )

User ID nc226 Sample Type 20 Sample Geometry I-L Marinelli Peak Locate Threshold

• 3.00 Peak Locate Range (in channels) : 1 - 4096 Peak Area Range (in channelsi 1100 - 4096 Identification Energy Tolerance.

• 1.000 keV Sample Size 1613.00 grams Sample Taken On  : 4/25/09 2:00:05 AM Acquisition Started  : 4/25/09 2:05:07 AM Decay Time  : 5-04E+000 Minutes Live Time  : 1086.0 Seconds Real Time 1086.2 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 2:18:15 AM Page 2

• B

• • • • B ACKG R O UN D S UB TR A CT R EP O RT Detector Name: DET02 Sample

Title:

I-L Solid Releas Peak Analysis Performed on: 4/25/09 2:18:15 AM Peak Energy Original Orig. Area Ambient Backgr. Subtracted Subtracted No. (keV) Area Uncert. Background Uncert. Area Uncert.

1 238.51 1. 17E+002 18.74 1.17E+002 1.87E+001 2 295.18 4. 47E+001 12.14 4.47E+001 1.21E+001

.3 352.01 8. 48E+001 12.04 8.48E+001 1.20E+001 4 583.11 4. 76E+001 9.61 4.76E+001 9.61E+000

5. 609.11 3. 90E+001 8.03 3.90E+001 8.03E+000 6 661.83 5. 89E+001 9.55 5.89E+001 9.55E+000 7 1332.97 1. 85E+001 4.91 1.85E+001 4.91E+000 8 1461.22 5. 93E+001 8.57 5.93E+001 8.57E+000 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 4/25/09 2:18:15 AM Page 3

• N

• • • • N U CLI 4 D E M DA R E POR T W**W Detector Name: DET02 Sample Geometry: I-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 6. 06E-007 5.08E-008

1. 95E-008 569.32 15.43 2. 89E-007

9. 60E-009 604.70 97.60 5. 08E-008

6. 29E-009 795.84 85.40 9. 08E-008 1.34E-008 801.93 8.73 4. 61E-007 2.18E-008 1365.15 3.04 4. 1lE-007

0. 00E+000

+ CS-137 661.65* 85.12 8.21E-008 8.21E-008

1. 66E-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 4/25/09 2:18:15 AM Page 4

• 'N U C L I D E I D E N T I F I C A T I 0 N R E P 0 R T Sample

Title:

I-L Solid Releas Nuclide Library Used: C:\GENIE2K\CAMFILES\AnSolMDA.NLB

................... IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keY) (%) (uCi/gram) Uncertainty K-40 0.973 1460.81* 10.67 2. 72E-006 3.99E-007 CS-137 0.995 661.65* 85.12 1. 66E-007 2.72E-008 PB-212 0.672 87.20 6.30 89.80 1.75 Vi 238.63* 44.60 2. 48E-007 4.01E-008 300.09 3.41 BI-214 0.656 609.31* 46.30 1. 87E-007 3.88E-008 934.06 3.21 1764.49 15.80 PB-214 0.676 87.220 3.70 89.80 1.03 241.98 7'.49 295.21* 19.20 2.65E-007 7.22E-008 351.92* 37.20 3. 05E-007 4.37E-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 4/25/09 2:18:15 AM Page 5

I TR*R Nuclide Wt mean Wt mean Nuclide Id Activity Activity Name Confidence (uCi/gram) Uncertainty K-40 0.973 2 .72E-006 3.99E-007 CS-137 0.995 1. 66E-007 2.72E-008 X BI-211 0.522 PB-212 0.672 2. 48E-007 4.01E-008 BI-214 0.656 1. 87E-007 3.88E-008 PB-214 0.676 2.94E-007 3.74E-008 Total Activity 3. 62E-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 2:18:15 AM Peak Locate From Channel: 100 Peak Locate To Channel: 4096 Peak Energy Peak Size in Peak CPS No. (keY) Counts per Second  % Uncertainty 4 583.11 4.39E-002 20.16 7 1332.97 1.70E-002 26.57 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.000 sigma