Worldwide Open Proficiency Test: Determination of ... - Nucleus - IAEA

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Lab code Draft, page 114 Rep. Value Rep. Unc. Unc. [%] Rel. Bias A1 A2 True P Prec Final Score 251 5.6 0.1 1.79 5.66 0.3 0.5 A 3.5 A A 252 6.9 1.1 15.94 30.19 1.6 2.9 A 16.2 A A 256 5.25 0.34 6.48 -0.94 0.0 1.0 A 7.1 A A 259 4.58 0.52 11.28 -13.59 0.7 1.4 A 11.7 A A 260 6 1.5 25.00 13.21 0.7 3.9 A 25.2 N W 261 5 0.36 7.20 -5.66 0.3 1.0 A 7.8 A A 263 10.3 2.1 20.39 94.34 5.0 5.4 A 20.6 N N 264 4.32 0.99 22.92 -18.49 1.0 2.6 A 23.1 N W 265 5.93 0.51 8.60 11.89 0.6 1.4 A 9.1 A A 267 30.9 8 25.89 483.02 25.6 20.6 N 26.1 N N 272 3.66 1.21 33.06 -30.94 1.6 3.1 A 33.2 N N 274 5.29 0.01 0.19 -0.19 0.0 0.4 A 3.0 A A 276 6 1.5 25.00 13.21 0.7 3.9 A 25.2 N W 297 3.85 0.49 12.73 -27.36 1.5 1.3 N 13.1 A N 299 5.2 0.5 9.62 -1.89 0.1 1.4 A 10.1 A A
[Bq/kg] 15 13 11 9 7 5 3 1 74 131 225 172 145 21 259 77 130 86 128 87 156 110 17 160 59 73 257 5 70 7 194 175 166 39 88 207 90 134 163 65 251 236 133 82 56 171 63 62 188 51 193 52 192 152 61 213 237 212 96 200 214 151 79 114 150 184 95 244 265 83 41 185 26 276 261 32 252 245 264 143 34 13 30 36 263 138 125 Lab code Rep. Value Performance evaluation <strong>of</strong> Sr-90 measurement results Rep. Unc. <strong>IAEA</strong>-447 Moss-soil reference material Unc. [%] Target Value: 5.0 ± 0.3 [Bq/kg] N 48% Rel. Bias W 5% A 47% Sr-90 in moss-soil Laboratory code A1 A2 True P Prec 5 4.13 0.91 22.03 -17.4 0.9 2.5 A 22.8 A A 7 4.75 0.71 14.95 -5.0 0.3 2.0 A 16.1 A A 13 45.82 5.66 12.35 816.4 40.8 14.6 N 13.7 A N 17 4.1 0.5 12.20 -18.0 0.9 1.5 A 13.6 A A 21 3.16 0.7 22.15 -36.8 1.8 2.0 A 23.0 A A 26 16.82 2.07 12.31 236.4 11.8 5.4 N 13.7 A N 30 66 21 31.82 1220.0 61.0 54.2 N 32.4 N N 32 39.4 4.3 10.91 688.0 34.4 11.1 N 12.5 A N 34 41 13 31.71 720.0 36.0 33.5 N 32.3 N N 36 178 100 56.18 3460.0 173.0 258.0 A 56.5 N N 39 4.8 0.6 12.50 -4.0 0.2 1.7 A 13.9 A A 41 13 1 7.69 160.0 8.0 2.7 N 9.8 A N Final Score
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IAEA Analytical Quality in Nuclear
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FOREWORD A reliable determination o
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1. INTRODUCTION A reliable determin
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2.1. Proficiency test objectives 2.
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To confirm the assigned target valu
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program achieving complete sample d
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2.3.4.3. Determination of U-234, U-
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AlphaCounts per channel 2000 1500 1
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3. PERFORMANCE CRITERIA Several rat
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acceptable”, a further check is a
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TABLE 4. SUMMARY EVALUATION OF ALL
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Lab. code Number of reported Scored
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4.2. General recommendations and le
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Difference S2-S4 (%) Difference S2-
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4.4. Recommendations related to the
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[Bq/kg] 70 60 50 40 30 20 10 0 Ra-2
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Figure 22: Part of the Thorium radi
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5. CONCLUSIONS The IAEA-CU-2009-03
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REFERENCES [1] DUEWER, D.L., A Robu
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APPENDIX I: PERFORMANCE EVALUATION
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Lab code Rep. Value Rep. Unc. Unc.
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Page 65 and 66: Lab code Rep. Value Rep. Unc. Unc.
Page 67 and 68: [Bq/kg] 650 575 500 425 350 275 200
Page 69 and 70: [Bq/kg] 650 600 550 500 450 400 350
Page 71 and 72: [ B q /k g ] 70 60 50 40 30 20 10 L
Page 93 and 94: [Bq] 50 45 40 35 30 25 20 15 10 120
Page 95 and 96: [Bq/kg] 60 50 40 30 20 10 0 25 223
Page 101 and 102: [ B q /k g ] 60 50 40 30 20 10 0 72
Page 115: Lab code Rep. Value Rep. Unc. Unc.
Page 123 and 124: [Bq/kg] 45 41 37 33 29 25 21 17 13
Page 139 and 140: [Bq/kg ] 19 17 15 13 11 9 7 5 3 286
Page 153 and 154: [Bq/kg] 19 17 15 13 11 9 7 5 3 1 25
Page 159 and 160: [ B q /k g ] 5.5 5 4.5 4 3.5 3 2.5
Page 165 and 166: [ B q /k g ] 3.5 3.0 2.5 2.0 1.5 1.
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[Bq /kg ] 8.5 7.5 6.5 5.5 4.5 3.5 2
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[Bq/kg] 7.5 6.5 5.5 4.5 3.5 2.5 1.5
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[B q /k g ] 13 11 9 7 5 3 1 515 26
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[Bq /kg ] 11 9 7 5 3 1 219 250 233
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[Bq/kg] 13 11 9 7 5 3 1 273 5264 26
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APPENDIX II: LIST OF PARTICIPATING
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Dr. Victor Badulin Public Exposure
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Dr. David Lobb Department of Soil S
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Petr Rulik Monitoring Department Na
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Mr. Benoit Daniel Eichrom Europe Ru
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Prof. Dr. Constantin Papastefanou A
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Mr. A.G. Hegde Health Physics Divis
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Mr. Mario Montalto Istituto Di Radi
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Mr. Samer J. Al-Kharouf Radiation P
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Ms. Snezana Dimovska Radioecology R
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Dr. Andrzej Komosa Department of Ra
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Ms. Ana-Maria Apostu Dept. of Life
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Mr. Peter Jovanovic Department of P
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Dr. Catalina Gasco Leonarte Ed. 3a
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Dra. Montserrat Llaurado Departamen
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Mr. Abdullah Dirican Turkish Atomic
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Dr. Paul Smedley Centre For Environ
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Mr. Kevin T. Claver Environmental A
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