ML101970491

Gamma Spectrum Analysis, Oc

ML101970491
Person / Time
Site:	Oyster Creek
Issue date:	04/17/2009
From:	- No Known Affiliation
To:	Office of Information Services
References
FOIA/PA-2009-0214
Download: ML101970491 (5)

Text

G A MMA S P E C T R U M A N A L Y S I S OYSTER CREEK NUCLEAR GENERATING STATION CHEMISTRY DEPARTMENT Detector Name  : DET02 Report Generated On 4/17/09 3:15:44 PM Spectral Data File Name C:\PCNT2K\CAMFILES\lLSOLMDA\2000051.CNF Co-t4 3ample Title 1-L Solid Releas Dample Description dirt #3 near cst iser ID kg 3ample Type 20

'ample Geometry 1-L Marinelli

?eak Locate Threshold 3.00

?eak Locate Range (in channels) 1 - 4096

?eak Area Range (in channels) 100 - 4.096

[dentification Energy Tolerance 1.000 keV 3ample Size 926.00 grams

ample Taken On 4/17/09 1

10:58 PM

ýcquisition Started 4/17/09 2:49:01 PM

)ecay Time 9.81E+001 Minutes

,ive Time 1902.0 Seconds

.eal Time 1902.5 Seconds

)ead Time 0.03 %

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

Back round Subtract Report 4/17/09 3:15:45 PM Page 2 B A C K G R O U N D S U B T R A C T RE P O R T

• • W************* * ***** ***W*WWWWWWWW

• WWW**** ******** ****** ***** **** WW Detector Name: DET02 Sample

Title:

1-L Solid Releas Peak Analysis Performed on: 4/17/09 3:15:45 PM Peak Energy Original Orig. Area Ambient Backgr. Subtracted Subtracted No. (keV) Area Uncert. Background Uncert. Area Uncert.

1 76.84 6.41E+001 24 .26 6 .41E+001 2.43E+001 2 238.50 1. 62E+002 27.33 1. 62E+002 2. 73E+001 3 351.88 9. 07E+001 17 .11 9. 07E+001 1. 71E+001 4 583.18 4. 70E+001 11.80 4 70E+001 1. 18E+001 5 609.24 9. 29E+001 14 .83 9. 29E+001 1. 48E+001 6 661.37 3. 02E+001 13.85 3 02E+001 1. 38E+001 7 1173 .50 6. 44E+002 26.75 6 .44E+002 2. 68E+001 8 1332.75 5 28E+002 23.55 5. 28E+002 2. 36E+001 9 1460.97 6. 75E+001 9.21 6. 75E+001 9. 21E+000 q = First peak in a multiplet region n = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.000 sigma

Nuclýý_,d(p NDA Report 4/17/09 3:15:45 PM Page, 3 N U C L I D E M D A R E P O R T Detector Name: DET02 Sample Geometry: l-L Marinelli Sample

Title:

l-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 1. 05E-006 8.86E-008 -2. 72E-007 569.32 15.43 6 .18E-007 -8 .32E-008 604.70 97.60 8. 86E-008 5. 71E-010 795.84 85.40 1. 69E-007 4 69E-008 801.93 8.73 1. 70E-006 7 95E-007 1365.15 3.04 2. 13E-006 -3. 77E-008

+ CS-137 661. 65* 85.12 1. 73E-007 1.73E-007 8 .47E-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

Int rferpnce Corrected Activity Report 4/17/09 3:15:4.5 PM Page4

• 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 0.996 1460.81* 10.67 3.08E-006 4.26E-007 CO-60 0.988 1173.22* 100.00 2. 58E-006 1.17E-007 1332.49* 100.00 2. 37E-006 1.16E-007 CS-137 0.988 661.65* 85.12 8.47E-008 3.88E-008 BI-211 0.548 351.10* 12 .20 9. 88E-007 1.88E-007 404 .80 4 .10 PB-212 0.672 87.20 6.30 89.80 1. 75 238.63* 44.60 3 .42E-007 5.81E-008 300.09 3.41 BI-214 0.660 609.31* 46.30 4.44E-007, 7.16E-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

Intc-*+ferýnce Corrected Activity Report 4/17/09 3:15:45 PM Page 5 INT* ** ******* ***** * **R*********T******** ***************

• • • I NT E R FER E NCE CO RR E C TED R EP OR T *****

Nuclide Wt mean Wt mean Nuclide Id Activity Activity Name Confidence (uCi/gram) Uncertainty K-40 0. 996 3 OSE-006 4.26E-007 CO-60 0.988 2 47E-006 8.23E-008 CS-137 0.988 8 47E-008 3.88E-008 BI-211 0.548 9. 88E-007 1.88E-007 PB-212 0.672 3 .42E-007 5.81E-008 BI-214 0.660 4 .44E-007 7.16E-008 Total Activity 7. 42E-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 PEAKS Peak Locate Performed on: 4/17/09 3:15:45 PM Peak Locate From Channel: 100 Peak Locate To Channel: 4096 Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second  % Uncertainty 1 76.84 3.37E-002- 37.85 4 583.18 2.47E-002 25 .11 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.000 sigma