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

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Lab code Draft, page 90 Rep. Value Rep. Unc. Unc. [%] Rel. Bias A1 A2 True P Prec Final Score 249 56.27 1.64 2.91 124.18 31.2 6.7 N 8.5 A N 250 59.12 1.88 3.18 135.54 34.0 7.1 N 8.6 A N 251 31.56 3.08 9.76 25.74 6.5 9.5 A 12.6 A A 252 45 8.1 18.00 79.28 19.9 21.5 A 19.7 A A 253 31 4 12.90 23.51 5.9 11.5 A 15.2 A A 254 23 2 8.70 -8.37 2.1 7.3 A 11.8 A A 258 21.27 1.86 8.74 -15.26 3.8 7.0 A 11.8 A A 260 32 5 15.63 27.49 6.9 13.9 A 17.5 A A 261 65 7.8 12.00 158.96 39.9 20.8 N 14.4 A N 263 32.9 14 42.55 31.08 7.8 36.5 A 43.3 N N 264 18.7 1.35 7.22 -25.50 6.4 6.2 N 10.8 A N 265 24 13 54.17 -4.38 1.1 33.9 A 54.7 N W 267 22.6 4.7 20.80 -9.96 2.5 13.2 A 22.3 N W 269 21.8 2.9 13.30 -13.15 3.3 9.1 A 15.5 A A 272 26.5 1.88 7.09 5.58 1.4 7.1 A 10.7 A A 273 194.5 36.4 18.71 674.90 169.4 94.1 N 20.3 N N 274 28.6 1.5 5.24 13.94 3.5 6.5 A 9.5 A A 275 25.84 1.08 4.18 2.95 0.7 5.9 A 9.0 A A 276 25 3 12.00 -0.40 0.1 9.3 A 14.4 A A 277 45.54 3.94 8.65 81.43 20.4 11.4 N 11.8 A N 278 46.1 13.7 29.72 83.67 21.0 35.7 A 30.8 N N 279 125.3 1.9 1.52 399.20 100.2 7.1 N 8.1 A N 283 101.6 3.2 3.15 305.02 76.6 9.7 N 8.6 A N 284 28.46 4.04 14.20 13.39 3.4 11.6 A 16.3 A A 285 29.6 4.1 13.85 17.93 4.5 11.8 A 16.0 A A 288 25.7 2.1 8.17 2.39 0.6 7.5 A 11.4 A A 289 51 4 7.84 103.19 25.9 11.5 N 11.2 A N 290 26.3 2.4 9.13 4.78 1.2 8.1 A 12.1 A A 292 27 2 7.41 7.57 1.9 7.3 A 10.9 A A 293 27 2 7.41 7.57 1.9 7.3 A 10.9 A A 294 19 1 5.26 -24.30 6.1 5.8 N 9.5 A N 295 32.8 5.4 16.46 30.68 7.7 14.9 A 18.3 A A 296 20.8 2.2 10.58 -17.13 4.3 7.7 A 13.2 A A 297 46.9 4.7 10.02 86.85 21.8 13.2 N 12.8 A N 300 26.5 5 18.87 5.58 1.4 13.9 A 20.5 N W
[Bq] 50 45 40 35 30 25 20 15 10 120 95 77 Performance evaluation <strong>of</strong> Ra-226 measurement results 216 71 <strong>IAEA</strong>-447 Moss-soil reference material 12 Target Value: 25.1 ± 2.0 [Bq/kg] 264 Radiochemical methods N 40% W 5% A 55% Ra-226 in moss-soil (RC) 267 276 26 119 246 Laboratory code 3 125 251 122 236 151 150 152 78
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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
Page 41 and 42: REFERENCES [1] DUEWER, D.L., A Robu
Page 43 and 44: APPENDIX I: PERFORMANCE EVALUATION
Page 45 and 46: 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 91: Lab code Rep. Value Rep. Unc. Unc.
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 117 and 118: [Bq/kg] 15 13 11 9 7 5 3 1 74 131 2
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
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Lab code Rep. Value Rep. Unc. Unc.
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[Bq/kg] 19 17 15 13 11 9 7 5 3 1 25
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[ B q /k g ] 5.5 5 4.5 4 3.5 3 2.5
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[ 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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