ML102000456

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Gamma Spectrum Analysis - Oyster Creek
ML102000456
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: ML102000456 (5)


Text

G A M M A 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 Spectral Data File Name
4/25/09 1:34:31 AM
C:\\PCNT2K\\CAMFILES\\lLSOLMDA\\2000074.CNF Sample Title Sample Description User ID Sample Type Sample Geometry l-L Solid Releas N side of pump house soil nc226 20 a

-13 1-L Marinelli

$ CL'-

~

~ Peak Locate Threshold Peak Locate Range (in channels)

Peak Area Range (in channels)

Identification Energy Tolerance Sample Size Sample Taken On kcquisition Started Decay Time Live Time Real Time Dead Time 3.00 1 -

4096 100 -

4096 1.000 key 1742.00 grams 4/24/09 7:00:00 PM 4/25/09 1:21:23 AM 3.81E+002 Minutes 1087.0 Seconds 1087.2 Seconds 0.02 Energy Calibration Used Done On Efficiency Calibration Used Done On

3/21/08
3/21/.08

Background Subtract Report 4/ý5/09 1:34:32 AM Page 2

BACKGROUND SUBTRACT REPORT Detector Name:.

DET02 Sample

Title:

I-L Solid Releas Peak Analysis Performed on:

4/25/09 1:34:31 AM Peak Energy Original Orig. Area Ambient Backgr.

No.

(keV)

Area Uncert.

Background

Uncert.

Subtracted Subtracted Area Uncert.

1 2

3 4

5 6

238.56 351.90 583.36 661.81 1332.90 1461.80 8.46E+001 4.24E+001

2. 34E+001 8.72E+001
3. 04E+001 2.37E+001 17.76 13.46
6. 91 9.60 5.88 5.19 8.46E+001
4. 24E+001
2. 34E+001
8. 72E+001
3. 04E+001
2. 37E+001
1. 78E+001
1. 35E+001
6. 91E+000
9. 60E+000
5. 88E+000
5. 19E+000 A = First peak in a multiplet region

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

Ni.iclide MDA Report 4/25/09 1:34:32 AM Page 3

Detector Name:

Sample Geometry:

Sample

Title:

Nuclide Library Used:

DET02 1-L Marinelli 1-L Solid Releas C:\\GENIE2K\\CAMFILES\\AnSolMDA.NLB Nuclide Name CS-134

+

CS-137 Energy (keV) 563.23 569.32 604.70 795.84 801.93 1365.15 661. 65*

Yield

(%)

8.38 15.43 97.60 85.40 8.73 3.04 85.12 Line MDA (uCi/gram)

5. 37E-007
3. 08E-007
2. 95E-008 6.55E-008
4. 27E-007
1. 69E-006 3.42E-008 Nuclide MDA (uCi/gram) 2.95E-008 3.42E-008 Activity (uCi/gram) 1.27E-007
1. 30E-007

-5. 12E-009

1. 33E-008
2. 02E-008 2.81E-007
2. 28E-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 4/25/09, 1:34:32 AM Page 4

N U C L I D E I

D E N T I F I C A T IO N

R EPORT Sample

Title:

1-L-Solid Releas Nuclide Library Used: C:\\GENIE2K\\CAMFILES\\AnSolMDA.NLB IDENTIFIED NUCLIDES Nuclide Id Energy Name Confidence (keV)

K-40 CS-137 BI-211 PB-212 0.855 1460.81*

0.996 661.65*

0.544 351.10*

404.80 0*.674 87.20 89.80 238.63*

300.09 Yield (0) 10.67 85.12 12.20 4.10

6.30 1.75 44.60 3.41 Activity (uCi/gram) 1.01E-006
2. 28E-007 4.30E-007 1.66E-007 Activity Uncertainty 2.22E-007 2.55E-008 1.37E-007 3.50E-008
  • = 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

Ipterference Corrected Activity Report 4/25/09 1:34:32 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 EPORT Nuclide Nuclide Id Name Confidence Wt mean Activity (uCi/gram) 1.01E-006

2. 28E-007
4. 30E-007
1. 66E-007 Wt mean Activity Uncertainty 2.22E-007 2.55E-008 1.37E-007 3.50E-008 K-40 CS-137 BI-211 PB-212 0.855 0.996 0.544 0.674 Total Activity
1. 83E-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 Peak Locate Performed on:

Peak Locate From Channel:

Peak Locate To Channel:

PEAKS 4/25/09 100 4096 1:34:31 AM Peak Energy No.

(keY)

Peak Size in Counts per Second Peak CPS

% Uncertainty 3

583.36 5

1332.90

2. 15E-002 2.80E-002 29.58 19.32 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.000 sigma