ML101970490

Gamma Spectrum Analysis, Oc

ML101970490
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: ML101970490 (5)

Text

GAMMA SPECTRUM ANALYSIS OYSTER CREEK NUCLEAR GENERATING STATION CHEMISTRY DEPARTMENT Detector Name  : DET02 Report Generated On

• 4/17/09 2:26:17 PM Spectral Data File Name

• C:\PCNT2K\CAMFILES\1LSOLMDA

\2000050.CNF

('-40 3.43 '+ -t (

Sample Title  : l-L Solid Releas Sample Description - dirt #2 near cst User ID

• kg Sample Type  : 20 Sample Geometry I-L Marinelli 1

Peak Locate Threshold  : 3.00 Peak Locate Range (in channels) S 1 -4096 Peak Area Range (in channels) 1100 - 4096 Identification Energy Tolerance - 1.000 keV Sample Site 1066.00 grams Sample Taken On 4/17/09 1:10:15 PM Acquisition Started 4/17/09 1:53:17 PM Decay Time 4.30E+001 Minutes Live Time 2278.0 Seconds Real Time 2278.9 Seconds Dead Time 0.04 %

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

Background Subtract Report 4/17/09 2:26:17 PM Page 2

B*

• • • 9*BACKGROUND SUBTRACT REPORT

• **'

Detector Name: DET02 Sample

Title:

1-L Solid Releas Peak Analysis Performed on: 4/17/09 2:26:17 PM Peak Energy Original Orig. Area Ambient Backgr. Subtracted Subtracted No. (keY) Area Uncert. Background Uncert. Area Uncert.

1 238.45 1. 66E+002 32.31 1.66E+002 3.23E+001 2 295.01 8. 98E+001 24.76 8. 98E+001 2.48E+001 3 351.76 1. 13E+002 23.40 1. 13E+002 2.34E+001 4 583.20 6. 08E+001 17.77 6 .08E+001 1.78E+001 5 609.17 7.55E+001 15.77 7 .55E+001 1.58E+001 6 66.1.66 1. 07E+002 17.70 1. 07E+002 1.77E+001 7 1173.48 1. 21E+003 37.13 1 .21E+003 3.71E+001 8 1332.86 1. 05E+003 33.25 1. 05E+003 3.33E+001 9 1461.12 1.32E+002 12.76 1. 32E+002 1.28E+001 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 4/17/09 2:26:17 PM Page 3

N U C L I D E M D A R E P 0 R T

"**

Detector Name: DET02 Sample Geometry: I-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 1. OOE-006 9.62E-008 3.27E-008 569.32 15.43 5. 98E-007 2.14E-007 604.70 97.60 9.62E-008

2. 06E-008 795.84 85.40 1. 57E-007 3.31E-008 801.93 8.73 1. 60E-006

3. 97E-007 1365.15 3.04 2. 68E-006

6. 67E-007

+ CS-137 661.65* 85.12 1.41E-007 1.41E-007 2.18E-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 4/17/09 2:26:17 PM Page 4

• • • • ** ** * * * * *.**

I** * * * * * * * ******************* T* **********************

• • • • • N UC L IDE IDE N TI FI C AT ION R EP O RT

• *** *

• Sample

Title:

I-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 0.984 1460.81* 10.67 4. 38E-006 4.34E-007 CO-60 0.984 1173.22* 100.00 3. 53E-006 1.25E-007 1332.49* 100.00 3 .41E-006 1.28E-007 CS-137 1.000 661..65* 85.12 2.18E-007 3.63E-008 PB-212 0.670 87.20 6.30 89.80 1.75 238.63* 44.60 2 . 53E-007 4.97E-008 300.09 3 .41 BI-214 0.659 609.31* 46.30 2.62E-007 5.50E-008 934.06 3 .21 1764.49 15 .80 PB-214 0.673 87.20 3.70 89.80 1.03 241.98 7.49 295.21* 19.20 3. 83E-007 1.06E-007 351.92* 37.20 2. 92E-007 6.09E-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

p,.

Interference Corrected Activity Report 4/17/09 2:26:17 PM Page 5

• INTERFERENCE CORRECTED REPORT

• Nuclide Wt mean Wt mean Nuclide Id Activity Activity Name Confidence (uCi/gram) Uncertainty K-40 0.984 4 .38E-006 4.34E-007 CO-60 0.984 3.47E-006 8.96E-008 CS-137 1.000 2. 18E-007 3.63E-008 x BI-211 0.567 PB-212 0.670 2. 53E-007 4.97E-008 BI-214 0.659 2. 62E-007 5.50E-008 PB-214 0.673 3.14E-007 5.28E-008 Total Activity 8. 90E-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: 4/17/09 2:26:17 PM Peak Locate From Channel: 100 Peak Locate To Channel: 4096 Peak Energy Peak Size in Peak CPS No. (keY) Counts per Second  % Uncertainty 4 583.20 2.67E-002 29.22 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.000 sigma