ML102000442

Gamma Spectrum Analysis, Oyster Creek

ML102000442
Person / Time
Site:	Oyster Creek
Issue date:	04/21/2009
From:	- No Known Affiliation
To:	Office of Information Services
References
FOIA/PA-2009-0214
Download: ML102000442 (5)

Text

t7-GAMMA SPECTRUM A N A L Y S I S OYSTER CREEK NUCLEAR GENERATING STATION CHEMISTRY DEPARTMENT Detector Name  : DET01 Report Generated On  : 4/21/09 12:04:23 PM Spectral Data File Name  : C:\PCNT2K\CAMFILES\ILSOLMDA

\2000063.CNF Sample Title 1 l-L Solid Releas Sample Description  : Soil from New Hole; Depth I' User ID  : kg Sample Type  : 20 Sample Geometry  : I-L Marinelli 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 872'.00 grams Sample Taken On 4/21/09 11:25:22 AM Acquisition Started 4/21/09 11:49:24 AM Decay Time 2.40E+001 Minutes Live Time 1197.0 Seconds Real Time 1197.5 Seconds Dead Time 0.04 %

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

Background Subtract Report 4/21/09 12:04:23 PM Page 2

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

Title:

1-L Solid Releas Peak Analysis Performed on: 4/21/09 12:04:23 PM Peak Energy Original Orig. Area Ambient Backgr. Subtracted Subtracted No. (keV) Area Uncert. Background Uncert. Area Uncert.

1 238.54 2.30E+001 10.40 2.30E+001 1.04E+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 4/21/09 12:04:24 PM Page 3

N U C L I D E M D A R E P 0 R T Detector Name: DETO0 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 (keV) (%) (uCi/gram) (uCi/gram)

(uCi/gram]

CS-134 563.23 8.38 1. 03E-006 7.20E-008

3. 64E-007 569.32 15.43 6. 73E-007 8.35E-008 604.70 97.60 7 .20E-008

1. 53E-007 795.84 85.40 1. 07E-007 6.66E-009

• 801.93 8.73 1.23E-006

2. 63E-007 1365.15 3.04 3. 76E-006

1. 01E-007 CS-137 661.65 85.12 1.41E-007 1.41E-007

5. OOE-009

+ = 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 4/21/09 12:04:24 PM Page 4

NUCLIDE IDENTIFICATION REPORT 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 PB-212 0.709 .87.20 6.30, 89.80 1.75 238.63* 44.60 1.19E-007 5.40E-008 300.09 3.41

• = 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

% i" ! iI Interference Corrected Activity Report 4/21/09 12:04:24 PM Page 5

I NT ERF E R E NC E C ORREC TE D REPORT Nuclide Wt mean Wt mean Nuclide Id Activity Activity Name Confidence (uCi/gram) Uncertainty PB-212 0.709 1. 19E-007 5.40E-008 Total Activity 1. 19E-007

? = 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

• U N I D E N T I F I E D P E A K S

• Peak Locate Performed on: 4/21/09 12:04:23 PM Peak Locate From Channel: ý100 Peak Locate To Channel: 40916 Peak Energy Peak Size in Peak CPS No. (keV) 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