ML102000459

Gamma Spectrum Analysis Oyster Creek

ML102000459
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: ML102000459 (5)

Text

9 00 GAMMA SPECTRUM ANALYSIS OYSTER CREEK NUCLEAR GENERATING STATION CHEMISTRY DEPARTMENT Detector Name  : DET01 Report Generated On  : 4/25/09 2:30:59 AM -2~4=~ ~ 0o -60 Spectral Data File Name  : C: \PCNT2K\CAMFILES\1LSOLMDA

\2000076.CNF

(' Sample Title 1-L Solid Releas Sample Description soil n of cst 21 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 channels) 100 - 4096 Identification Energy Tolerance 1.000 keV Sample Size 1617.00 grams Sample Taken On 4/25/09 2:04:47 AM Acquisition Started 4/25/09 2:09:49 AM Decay Time 5.04E+000 Minutes Live Time 1568.0 Seconds Real Time 1568.8 Seconds Dead Time 0.05 %

Energy Calibration Used Done On 1/8/09 Efficiency Calibration Used Done On 1/8/09

BackgroundSubtract Report 4/25/09 2:30:59 AM Page 2

B A C K G R O U N D S U B T R A C:T R E P O R T

• • WW Detector Name: DET01 Sample

Title:

I-L Solid Releas Peak Analysis Performed on: 4/25/09 2:301:59 AM Peak Energy Original Orig. Area Ambient Backgr. Subtracted Subtracted No. (keV) Area Uncert. Background Uncert. Area Uncert.

M 1 238.51 1.36E+002 12.42 1.36E+002 1.24E+001 m 2 241.54 4. 61E+001 8.26 4.61E+001 8.26E+000 3 351.69 5. 56E+001 12.83 5.56E+001

'1.28E+001 4 582.82 4. 45E+001 8.64 4.45E+001 8.64E+000

• 5 609.01 4. 50E+001 9-.08 4.50E+001 9.08E+000 6 661.32 3-66E+001 9.66 3.66E+001 9.66E+000 7 1172.81 5.25E+001 8.80 5.25E+00i 8.80E+000 8 1332.64 5.80E+001 8.37 5.80E+001 8.37E+000 9 1460.69 5.98E+001 8.26 5.98E+001 8.26E+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 2:31:00 AM Page 3

N U C L I D E M D A R E P 0 R T Detector Name: DET01 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. 37E-007 6.06E-008

7. 83E-008 569.32 15.43 4. 39E-007

4. 04E-009 604.70 97.60 6. 06E-008

5. 35E-009 795.84 85.40 1. 03E-007

2. 16E-008 801.93 8.73 8; 09E-007

4. 91E-008 1365.15 3.04 2. 35E-006

1. 19E-006

+ CS-137 661.65* 85.12 1. 16E-007 1.16E-007

1. 13E-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

_I

Interference Corrected Activity Report 4/25/09 2:31:00 AM Page 4

S N U C L I D E IDENTIFICATION REPORT 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 0.998 1460.81* 10.67 3.01E-006 4.22E-007 C0-60 0.985 1173.22* 100.00 2.32E-007 3.92E-008 1332.49* 100.00 2. 87E-007 4.19E-008 CS-137 0.982 661.65* 85.12 1. 13E-007 2.99E-008 PB-212 0.708 87.20 6.30 89 .80 1.75 238.63* 44.60 2. 90E-007 2.72E-008 300.09 3.41 BI-214 0.652 609.31* 46.30 2.36E-007 4.79E-008 934. 06 3.21 1764.49 15.80 PB-214 0.418 87.20 3.70 89.80 1.03 241.98* 7.49 5. 93E-007 1.07E-007 295.21 19.20 351.92* 37.20 2. 08E-007 4.81E-008

• = Energy line found in the spectrum.

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

Interference Corrected Activity Report 4/25/09 2:31:00 AM Page 5

INTERFERENCE CORRECTED REPORT Nuclide Wt mean Wt mean Nuclide Id Activity Activity Name Confidence (uCi/gram) Uncertainty K-40 0.998 3 .01E-006 4.22E-007 CO-60 0.985 2.58E-007 2.86E-008 CS-137 0.982 1.13E-007 2.99E-008 x BI-211 0.578 PB-212 0.708 2 .90E-007 2.72E-008 BI-214 0.652 2 .36E-007 4.79E-008 PB-214 0.418 2.72E-007 4.38E-008 Total Activity 4.18E-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 SU N I D E N T I F I E D P E A K S Peak Locate Performed on: 4/25/09 2:30:59 AM Peak Locate From Channel: 100 Peak Locate.To Channel: 4096 Peak Energy Peak Size in Peak CPS No. (keY) Counts per Second  % Uncertainty 4 582.82 2.84E-002 19.41 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.000 sigma