ML102000466

Gamma Spectrum Analysis

ML102000466
Person / Time
Site:	Oyster Creek
Issue date:	04/26/2009
From:	- No Known Affiliation
To:	Office of Information Services
References
FOIA/PA-2009-0214
Download: ML102000466 (5)

Text

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G A M MA S P E C T R U M A N A L Y S I S

• OYSTE** *CRE*

• N*UCL***R*GENERATING** *STATI **ON * *CHEMSTRDE**A*RTMEN OYSTER CREEK NUCLEAR GENERATING STATION CHEMISTRY DEPARTMENT 4 Detector Name  : DET02 Report Generated On  : 4/26/09 12:01:08 AM Spectral Data File Name :C:\PCNT2K\CAMFILES\ILSOLMDA\20000S0.CNF Sample Title 1-L Solid Releas Sample Description CST Pit 5' User ID n4283 Sample Type 20 Sample Geometry 1-L Marinelli 13+

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 1998.52 grams Sample Taken On 4/25/09 9:45:00 PM Acquisition Started 4/25/09 11:44:27 PM Decay Time 1.19E+002 Minutes Live Time  : 1000.0 Seconds Real Time

• 1000.2 Seconds Dead Time

• 0.02 %

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

Baqkgrotnd Subtract Report 4/26/09 12:01:08 AM Page 2 BACKGROUND SUBTRACT REPORT Detector Name: DET02 Sample

Title:

1-L Solid Releas Peak Analysis Performed on: 4/26/09 12:01:08 AM Peak Energy Original Orig. Area Ambient Backgr. Subtracted Subtracted No. (keY) Area Uncert. Background Uncert. Area Uncert.

1 238.37 8. 97E+001 18.25 8.97E+001 1. 82E+001 2 249.61 1.74E+002 17.32 1. 74E+002 1. 73E+001 3 351.78 3.92E+001 10.75 3. 92E+001 1. 08E+001 4 609.31 3. 99E+001 7.75 3. 99E+001 7. 75E+000 5 661.64 3.94E+001 8.27 3. 94E+001 8. 27E+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at i.boo sigma

NUý4ide,,'MDA Report 4/26/09 12:01:09 AM Page 3 I

N U C L I D E MD A R E P O 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 (keY) (%) (uCi/gram) (uCi/gram) (uCi/gram)

CS-134 563.23 8.38 5. 09E-007 4.23E-008 5 .49E-008 569.32 15 .43 2. 07E-007 -8.32E-008 604.70 97.60 4. 23E-008 -2. 32E-009 795.84 85.40 6. 21E-008 9. 22E-009 801.93 8.73 5. 00E-007 - .53E-008 1365.15 3 .04. 1. 24E-006 -2. OOE-007

+ CS-137 661. 65* 85.12 6. 86E-008 6.86E-008 9. 73E-008

+ = 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 4/26/09 12:01:09 AM Page 4 NUCL IDE IDENTIFICATION REPORT *****

• ***********W***W***WW*****W***WW*******W**W**W*W**W**W******W*W*W **W****W**

Sample

Title:

1-L Solid Releas Nuclide Library Used: C:\GENIE2K\CAMFILES\AnSolMDA.NLB IDENTIFIED NUCLIDES ....................

Nuclide Id Energy Yield Activity Activity Name Confidence (keY) (0-) (uCi/gram) Uncertainty XE-135 '0.961 249.79* 89.90 1.95E-007 2.OOE-008 608 .18 2.89 CS-137 1.000 661.65* 85.12 9. 73E-008 2.05E-008 BI-211 0.563 351. 10* 12.20 3.76E-007 1.04E-007 404.80 4 .10 PB-212 0.666 87.20 6.30 89.80 1.75 238. 63* 44 .60 1.67E-007 3.41E-008 300.09 3 41 BI-214 0.661 609 .31 46.30 1.68E-007 3.29E-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

IntErfe' nce Corrected Activity Report 4/26/09 12:01:09 AM Page 5

• I N T E R F E R E N C E C 0 R R E C T E D R EPORT *****

Nuclide Wt mean Wt mean Nuclide Id Activity Activity Name Confidence (uCi/gram) Uncertainty XE-135 0.961 1. 95E-007 2.OOE-008 CS-137 1.000 9. 73E-008 2.05E-008 BI-211 0.563 3. 76E-007 1.04E-007 PB-212 0.666 1. 67E-007 3.41E7008 BI-214 0.661 1. 68E-007 3.29E-008 Total Activity 1.OOE-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 P E A K S ********'

Peak Locate Performed on: 4/26/09 12:01:08 AM peak Locate From Channel: 100 Peak Locate To Channel: 4096 Peak Energy Peak Size in Peak CPS No. (keY) Counts per Second  % Uncertainty All peaks were identified.

M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.000 sigma