ML101970534

Gamma Spectrum Analysis, Oc

ML101970534
Person / Time
Site:	Oyster Creek
Issue date:	04/18/2009
From:	- No Known Affiliation
To:	Office of Information Services
References
FOIA/PA-2009-0214
Download: ML101970534 (5)

Text

G A M M A S P EC T R U M A N A L Y S I S OYSTER CREEK NUCLEAR GENERATING STATION CHEMISTRY DEPARTMENT Detector Name  : DET01 Report Generated On  : 4/18/09 12:46:34 PM Spectral Data File Name C: \PCNT2K\CAMFILES\1LSOLMDA

\2000055.CNF 0o-O 9.06 3 1 ic--

Sample Title 1-L Solid Releas Sample Description Soil near CST; 51 depth User ID kg Sample Type 20 Sample Geometry 1-L Marinelli Peak Locate Threshold  : 3.00 Peak Locate Range (in channels) 1 - 4096 Peak Area Range (in channels) 1100 - 4096 Identification Energy Tolerance  : 1.000 keY Sample Size 834.00 grams Sample Taken On 4/18/09 12:00:38 AM Acquisition Started 4/18/09 12:05:41 PM Decay Time 7.25E+002 Minutes Live Time 2750.0 Seconds Real Time 2751.5 Seconds Dead Time 0.05 %

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

Background Subtract Report 4/18/09 12:46:34 PM Page 2

B A C K G R 0 U N D S U B T R A C T R E P 0 R T Detector Name: DET01 Sample

Title:

1-L Solid Releas Peak Analysis Performed on: 4/18/09 12:46:34 PM Peak Energy Original Orig. Area Ambient Backgr. Subtracted Subtracted

. No. (keV) Area Uncert. Background Uncert. Area Uncert.

1 351.83 4.81E+001 12.96 4.81E+001 1.30E+001 2 609.13 3. 43E+001 9.20 3.43E+001 9.20E+000 3 660.87 2 .75E+001 9.75 2.75E+001 9.75E+000 4 910.94 2. 80E+001 10 .37 2.80E+001 1.04E+001 5 1172.86 1. 73E+002 15 .06 1.73E+002 1.51E+001 6 1332,.10 1. 76E+002 14.22 1.76E+002 1.42E+001 7 1461.02 4. 05E+001 7.20 4.05E+001 7.20E+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 4/18/09 12:46:35 PM 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:

I-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. 08E-006 1.02E-007

2. 60E-007 569.32 15.43 4. 99E-007

3. 02E-007 604.70 97 .60 1. 02E-007

2. 73E-009 795.84 85 .40 1. 59E-007

2. 57E-008 801.93 8.73 1. 37E-006

3. 21E-007 1365.15 3 .04 4. 99E-007

0. OOE+000

+ CS-137 661.65* 85 .12 1. 40E-007 1.40E-007

.9.39E-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 4/18/09 12:46:35 PM Page 4

SN U C L I D E I D E N T I F I C A T IO N R E P O R T 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 0.993 1460.81* 10.67 2. 26E-006 4.C05E-007 CO-60 0.978 1173.22* 100.00 8. 46E-007 7.53E-008 1332.49* 100.00 9. 62E-007 8.03E-008 CS-137 0.907 661.65* 85.12 9. 39E-008 3.33E-008 BI-211 0.558 351.10* 12.20 6. 06E-007 1.64E-007 404.80

• 4.10 BI-214 0.659 609.31* 46.30 1. 99E-007 5.35E-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 4/18/09 12:46:35 PM Page 5

I N T E R F E R E N C E C O R R E C T E D RE P O R T Nuclide Wt mean Wt mean Nuclide Id Activity Activity Name Confidence (uCi/gram) Uncertainty K-40 0.993 2 .26E-006 4.05E-007 CO-60 0.978 9 ,OOE-007 5.49E-008 CS-137 0.907 9 .39E-008 3.33E-008 BI-211 0.558 6. 06E-007 1.64E-007 BI-214 0.659 1.99E-007 5.35E-008 Total Activity 4. 05E-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 PEAKS **********

Peak Locate Performed on: 4/18/09 12:46:34 PM Peak Locate From Channel: 100 Peak Locate To Channel: 4096 Peak Energy Peak Size in Peak CPS No. (keV)' Counts per Second  % Uncertainty 4 910.94 1.02E-002 36.98 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.000 sigma