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

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Lab code Draft, page 66 Rep. Value Rep. Unc. Unc. [%] Rel. Bias A1 A2 True P Prec 26 410 61.5 15.00 -3.30 14.0 166.8 A 15.7 A A 30 547 55 10.05 29.01 123.0 151.0 A 11.1 A A 71 381 11.3 2.97 -10.14 43.0 59.3 A 5.6 A A 77 433 19.05 4.39 2.24 9.5 71.3 A 6.4 A A 78 811 11 1.36 91.27 387.0 58.9 N 4.9 A N 80 530 20 3.77 25.00 106.0 73.0 N 6.0 A N 86 431 14 3.25 1.65 7.0 63.0 A 5.7 A A 114 460 60 13.04 8.49 36.0 163.2 A 13.9 A A 120 437 14.4 3.29 3.18 13.5 63.6 A 5.8 A A 125 500 54 10.80 17.92 76.0 148.6 A 11.8 A A 150 821 48.12 5.86 93.70 397.3 134.4 N 7.5 A N 151 455 10.8 2.37 7.43 31.5 58.6 A 5.3 A A 152 400 20 5.00 -5.66 24.0 73.0 A 6.9 A A 172 427 6 1.41 0.71 3.0 53.9 A 4.9 A A 216 399 13 3.26 -5.90 25.0 61.5 A 5.7 A A 236 435 13 2.99 2.59 11.0 61.5 A 5.6 A A 260 412 49.5 12.01 -2.83 12.0 137.7 A 12.9 A A 264 455 21.5 4.73 7.31 31.0 75.8 A 6.7 A A 265 402 9.46 2.35 -5.19 22.0 57.1 A 5.3 A A 267 61 15 24.59 -85.61 363.0 64.5 N 25.0 N N 299 316 35 11.08 -25.47 108.0 104.0 N 12.0 A N Final Score
[Bq/kg] 650 600 550 500 450 400 350 300 250 200 150 Performance evaluation <strong>of</strong> Po-210 measurement results <strong>IAEA</strong>-447 Moss-soil reference material Target Value: 423 ± 10 [Bq/kg] N 37% W 12% A 51% Po-210 in moss-soil 70 251 150 272 145 111 78 95 138 264 41 265 80 200 246 86 156 93 151 166 26 299 77 133 256 88 175 74 10 297 260 122 39 12 257 236 232 216 152 36 52 191 71 167 98 60 82 207 114 210 76 276 199 83 181 141 32 267 125 Lab code Rep. Value Rep. Unc. Unc. [%] Rel. Bias Laboratory code A1 A2 True P Prec Final Score 10 421.92 11.78 2.79 -0.26 1.1 39.9 A 3.7 A A 12 413 13 3.15 -2.36 10.0 42.3 A 3.9 A A 26 435.63 18.42 4.23 2.99 12.6 54.1 A 4.8 A A 32 155.4 5.8 3.73 -63.26 267.6 29.8 N 4.4 A N 36 395 50 12.66 -6.62 28.0 131.6 A 12.9 A A 39 414 25 6.04 -2.13 9.0 69.5 A 6.5 A A 41 539 25 4.64 27.42 116.0 69.5 N 5.2 A N 52 393 26 6.62 -7.09 30.0 71.9 A 7.0 A A 60 359 26 7.24 -15.13 64.0 71.9 A 7.6 A A 70 1440 220 15.28 240.43 1017.0 568.2 N 15.5 A N 71 383 8.75 2.28 -9.46 40.0 34.3 N 3.3 A W
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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
Page 17 and 18: 3. PERFORMANCE CRITERIA Several rat
Page 19 and 20: acceptable”, a further check is a
Page 21 and 22: TABLE 4. SUMMARY EVALUATION OF ALL
Page 23 and 24: Lab. code Number of reported Scored
Page 29 and 30: 4.2. General recommendations and le
Page 31 and 32: Difference S2-S4 (%) Difference S2-
Page 33 and 34: 4.4. Recommendations related to the
Page 35 and 36: [Bq/kg] 70 60 50 40 30 20 10 0 Ra-2
Page 37 and 38: Figure 22: Part of the Thorium radi
Page 39 and 40: 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: [Bq/kg] 650 575 500 425 350 275 200
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 117 and 118: [Bq/kg] 15 13 11 9 7 5 3 1 74 131 2
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Lab code Rep. Value Rep. Unc. Unc.
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[Bq/kg] 45 41 37 33 29 25 21 17 13
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[Bq/kg ] 19 17 15 13 11 9 7 5 3 286
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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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