ML102000440

Gamma Spectrum Analysis, Oyster Creek

ML102000440
Person / Time
Site:	Oyster Creek
Issue date:	04/19/2009
From:	- No Known Affiliation
To:	Office of Information Services
References
FOIA/PA-2009-0214
Download: ML102000440 (5)

Text

j GAMMA SPECTRUM A N'A L Y S I S OYSTER CREEK NUCLEAR GENERATING STATION CHEMISTRY DEPARTMENT Detector Name  : DET02 Report Generated On

• 4/19/09 9:24:15 AM Spectral Data Fil'e Name C: \PCNT2K\CAMFILES\1LSOLMDA

\2000061.CNF Sample Title 1 I-L Solid Releas I Sample Description User ID Sample Type

Soil near CST; Lower,

kg

20 South of Pipe Sample Geometry I-L Marinelli 1

Peak Locate Threshold  : 3.00 Peak Locate Range (in channels) S 1 - 4096 Peak Area Range (in channels) 100 -

1 4'096 Identification Energy Tolerance

• 1.000 keV Sample Size 807.00 grams Sample Taken On 4/18/09 5:00:48 AM Acquisition Started 4/19/09 8:10:51 AM Decay Time 1.63E+003 Minutes Live Time 4701.0 Seconds Real Time 4702.7 Seconds Dead Time 0.04 %

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

I' Background Subtract Report 4/19/09 9:24:15 AM Page 2

• B

• • • • BA C KG R OU ND S UBT R A CT REP O RT.,.

• • • • rq Detector Name: DET02 Sample

Title:

I-L Solid Releas Peak Analysis Performed on: 4/19/09 9:24:15 AM Peak Energy Original Orig. Area Ambient Backgr. Subtracted Subtracted No. (keV) Area Uncert. Background Uncert. Area Uncert.

1 238.66 1. 42E+002 37.12 1.42E+002 3 .71E+001 2 351.83 9 . OOE+001 24.23 9.OOE+001 2.42E+001 3 401.85 3.67E+001 21.94 3.67E+001

2. 19E+001 4 583.17 1. 01E+002 24.29 1.01E+002 2 .43E+001 5 609.39 6. 12E+001 16.83 6.12E+001

1. 68E+001 6 661.66 1 .32E+002 27.66 1.32E+002

2. 77E+001 7 1173.56 2. 52E+003 53.07 2.52E+003 5 .31E+001 8 1332.91 2. 26E+003 48.63 2.26E+003

4. 86E+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 4/19/09 9:24:15 AM Page 3

N U C L I D E M D A R E P 0 R T 9********'**'**99****9*9*9*****9*9***9*

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 9. 87E-007 8.74E-008

1. 26E-007 569.32 15.43 4.65E-007 2.20E-007 604.70 97.60 8. 74E-008

6. 42E-009 795.84 85.40 1.42E-007

2. 12E-008 801.93 8.73 1. 32E-006 2 .42E-007 1365.15 3.04 1 . 65E-006

4. 73E-008

+ CS-137 661.65* 85.12 1 . 56E-007 1.56E-007

1. 72E-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 4/19/09 9:24:15 AM Page 4 1 N*I E1 Sample

Title:

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

.............. e ... IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/gram) Uncertainty CO-60 0.976 1173.22* 100.00 4. 68E-006 1.30E-007 1332.49* 100.00 4. 72E-006 1.39E-007 CS-137 1.000 661.65* 85.12 1.72E-007 3.62E-008 BI-211 0.556 351.10* 12.20 4. 56E-007 1.23E-007 404. 80 4.10 PB-212 0.674 87.20 6.30 89.80 1.75 238. 63* 44.60 1.39E-007 3.65E-008 300.09 3.41 BI-214 0.660 609.31* 46.30 1. 36E-007 3.75E-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 4/19/09 9:24:15 AM Page 5

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 )Wt mean Wt mean Nuclide Id Activity Activity Name Confidence (uCi/gram) Uncertainty CO-60 0.976 4.70E-006 9.48E-008 CS-137 1.000 1.72E-007 3.62E-008 BI-211 0.556 4. 56E-007 1.23E-007 PB-212 6.674 1.39E-007 3.65E-008 BI-214 0.660 1.36E-007 3.75E-008 Total Activity 5. 60E-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: 4/19/09 9:24:15 AM Peak Locate From Channel: 100 Peak Locate To Channel: 4096 Peak Energy Peak Size in Peak CPS No. (keY) Counts per Second  % Uncertainty 3 401.85 7.80E-003 59.85 4 583.17 2. 14E-002 24.15 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.000 sigma