RRFM 2009 Transactions - European Nuclear Society

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Fig. 1 A geometric diagram of NIRR-1 axial plane from MCNP depicting 0.1 cm Cd liner in a large outer irradiation channel 222 of 455
1.0E+18 Energy Dependent Neutron Flux (n/cm^2.s.MeV) 1.0E+16 1.0E+14 1.0E+12 1.0E+10 1.0E+08 1.0E+06 1.0E+04 1.0E+02 energy dependant flux-bare energy dependent flux-1 mm Cd-liner 1.0E+00 1.00E-10 1.00E-08 1.00E-06 1.00E-04 1.00E-02 1.00E+00 1 Neutron Energy (MeV) Fig. 2 MCNP simulated energy-dependent neutron flux distributions in outer channl of NIRR-1 with and without Cd-liner 223 of 455
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© 2009 European Nuclear Society Ru
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RESEARCH REACTOR COALITIONS - SECON
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- Eastern European Research Reactor
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ut a comprehensive alignment of tec
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EERRI will be launched. As noted ab
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Nuclear material in the form of hig
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The GTRI domestic radiological mate
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2. State of the art For fuel plate
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It is known since the early days of
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End of 2008 first DU-8wt.%Mo (deple
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References [1] D. AB. Robinson et a
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• CNEA have been working in the f
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O 75 Bignan.doc - DI - 1 / 10 20/02
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O 75 Bignan.doc - DI - 9 / 10 20/02
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THE EAST EUROPEAN RESEARCH REACTOR
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namely Jozef Stefan Institute TRIGA
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Information and organizational issu
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Action Item Table 3. Description (t
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Table 6. Materials/fuel test experi
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In a recent development, it should
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1. Introduction: a renewed context
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interaction, close retention of fis
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3.3 Reference concept and alternati
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changes can be caused by void swell
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For its manufacturing, an additiona
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minor actinides (MA) considered as
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In France, the decision to build a
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eactors (HFR, OSIRIS and then JHR)
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DECOMMISSIONING PROGRESS OF THE DOU
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SECURITY OF SUPPLY FOR FISSION MEDI
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But the worst crisis developed by e
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IRE and COVIDEN are following close
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Fig 1. Design of the core and refle
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Table 3: Set of detailed fuel funct
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For the thermal-mechanical analysis
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Behaviour under conditions represen
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6. References [1] - MC. Anselmet, G
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2. Advanced nuclear fuel cycles The
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3.3 India In addition to the ration
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Session II Fuel Development 90 of 4
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1. Introduction Since 1957, date of
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A 3.1. Place a boron insert in a hi
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Finally, a new tool was defined and
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the end user (CEA), to define the f
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Previous papers discussed character
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(a) (b) (c) (d) (e) (f) (g) (h) (i)
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The results of a third reported irr
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In order to reproduce the heat tran
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25 OXIDE THICKNESS 20 Kim et al pH=
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Heavy ion irradiation of UMo7/Al fu
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For the lowest flux values tested d
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127 I beam 127 I beam 0 5 10 15 20
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Weight fractions (%) U(α) UO 2 γU
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activities to meet the need. The co
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Heat capacity Information Thermal c
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Decision point Activity Phase 2: Fu
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IRIS PROGRAM: IRIS4 FIRST RESULTS F
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The main characteristics of the IRI
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4. In-pool plate thickness measurem
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At that stage of IRIS4 irradiation
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extrapolated thermal property value
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optical microscope, acoustic emissi
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CD WIRES AS BURNABLE POISON FOR THE
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Figure 1. MCNP geometry model of fu
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considered carefully: (i) maintain
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discussed and validated together, k
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The as-fabrication Si contents in t
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uniform Si diffusion and consequent
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Recently, fuel relocation induced b
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characteristics of ILs obtained in
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- Type 2 (Si content ≥ 5 wt%) : c
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4. Discussion The main contribution
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METHODS OF INCREASING THE URANIUM C
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• strength properties of Zr-1% Nb
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4. References 1. Birzhevoy G.A., Ka
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Dispersion fuel Monolithic fuel ATR
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− because of its Newtonian charac
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Session III Back-end 166 of 455
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Fig.1. The transfer hall (left in c
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The shipment included all the SNF f
Page 172 and 173: FRESH AND SPENT NUCLEAR FUEL REPATR
Page 174 and 175: modifications, spent fuel inspectio
Page 176 and 177: The shipment cleared Romanian Custo
Page 178 and 179: steel are chosen as effective gamma
Page 180 and 181: Fig 3. Long lived nuclides radioact
Page 182 and 183: Session IV Innovative Methods in Re
Page 184 and 185: Lower Gr-reflector Al-clad Upper Gr
Page 186 and 187: All described fuel elements were ca
Page 188 and 189: ANALYSIS OF NEW SAFETY CRITERIA FOR
Page 190 and 191: 3.2 Strain limit The value of 3.65%
Page 192 and 193: The comparison between clad tempera
Page 194 and 195: VALIDATION OF PLTEMP/ANL V3.6 CODE
Page 196 and 197: ΔT p 0.0234 2 ⎪⎧ q[W/cm ] ⎪
Page 198 and 199: Table II. Hot Channel Factors for B
Page 200 and 201: for the U-8Mo fuel meat [5]. The po
Page 202 and 203: correlation of Dittus-Boelter; the
Page 204 and 205: ROLE OF RELAP/SCDAPSIM IN RESEARCH
Page 212 and 213: SEVERE REACTIVITY INJECTION ACCIDEN
Page 214 and 215: expansion and steam formation were
Page 216 and 217: 3 Conclusion Since a few years, IRS
Page 218 and 219: analysis procedure (ENAA) except vi
Page 220 and 221: References Briesmeister, J.F., 2000
Page 224 and 225: Fuel plate temperatures during oper
Page 226 and 227: the primary circuit in the central
Page 228 and 229: Fig. 3: Surface temperature over th
Page 230 and 231: [4] “Test Irradiations of Full Si
Page 232 and 233: The core is made of 1488 stainless
Page 234 and 235: 4. Commissioning the facility for t
Page 236 and 237: ESTABLISHMENT OF A SINGLE-CRYSTAL F
Page 238 and 239: were provided to MU and INL for thi
Page 240 and 241: concrete covered with sheets of 1.2
Page 242 and 243: USE OF FISSION RADIATION IN LIFE SC
Page 244 and 245: Fig. 3. Scan of an etch track film
Page 246 and 247: Summary The unique fission neutron
Page 248 and 249: 2. Methods 2.1 Reactor produced rad
Page 250 and 251: 3.2 Viability studies The results o
Page 252 and 253: DESIGN OF A FLOWING-NAK EXPERIMENTA
Page 254 and 255: 4. Containment rig and sample-holde
Page 256 and 257: 7. Electrical heater The external h
Page 258 and 259: Page 1 / 7 EVITA: a semi-open loop
Page 260 and 261: Page 3 / 7 Fig.1: EVITA fuel Genera
Page 262 and 263: Page 5 / 7 Challenges When operatin
Page 264 and 265: Page 7 / 7 References: [1] M.C. Ans
Page 266 and 267: Nuclear Research Institutes, and so
Page 268 and 269: According to the latest IAEA inform
Page 270 and 271: 18. May Training of operating perso
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2.1 Irradiation Facilities Brief te
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3.1 Detection limits Although it is
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PARTIAL DISMANTLING OF RESEARCH REA
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• Core - liable to full scale rep
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• Necessary individual dosimetry
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SILICON DOPING AT FRM II H. GERSTEN
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The resulting neutron flux density
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4. References [1] Wagner F.M., Knes
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The choice of fuel base and solutio
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3.3 Increasing power beyond current
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A COATING TO PROTECT SPENT ALUMINIU
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The treatment consisted of simple i
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5. Conclusions 1. Immersion of AA 1
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KEEPING AGING RESEARCH REACTORS IN
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inspected in presence of an expert
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After the inspection was finished,
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1 A STRATEGY FOR MANAGING AGEING CO
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3 2. With the aluminium-clad HEU fu
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5 The pool and the support structur
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Fig.2. Reflector element of JRR-4.
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Dimensional change (%) 0.6 0.5 0.4
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SAFETY CONSIDERATIONS FOR CORE MANA
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3 3. Core operation and monitoring
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5 temperature, etc.). Effective sec
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1436 keV, Cs 138 1369 keV, Na 24 2.
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compared with that of the delayed n
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AD-HOC AND PREVENTATIVE MAINTENANCE
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Page 3 of 7 3. SAFARI-1OPERATIONAL
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Page 5 of 7 programs for instrument
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Page 7 of 7 DATE DESCRIPTION DATE D
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MICROSTRUCTURAL ANALYSIS OF MTR FUE
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In sample S3, similar zones could b
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increased temperature, the solid st
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Figure 8 BEI images covering Sample
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660 °C, but since in the former me
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support. Both Governments have eval
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• Removal of sludge from the SNF
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UPGRADED REACTOR SYSTEMS FOR ENHANC
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Parameter HEU LEU a 6.0x10 -5 (°K)
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From 1992 until 2005 the TRIGA-SSR
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Figure9 - Dependency between reacto
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URANIUM CONTAMINATION IN PRIMARY CI
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1.00E+06 1.00E+05 Volume activity (
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6. Acknowledgement This work was pe
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2. Steady State Thermal Hydraulic A
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in the scram, and the respective re
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CORROSION BEHAVIOR OF ALUMINIUM ALL
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3.2. Pitting corrosion of 1050 and
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4. Discussions This study shown tha
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The Steady State core was fully con
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0.E+00 2.E+06 1.40E+07 2.E+06 1.20E
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SYNTHESIS AND CHARACTERIZATION OF G
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0 2 4 6 8 10 120 1,2 100 1,0 80 70
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Element, Wt %, At %, K‐Ratio, Z,
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U/cc, but the target uranium densit
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Fig. 5 Macroscopic cutting view (x
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SELF-ASSESSMENT OF APPLICATION OF T
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2. The Code of Conduct on the Safet
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For emergency preparedness, conside
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inside of a compaction die by blowi
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Fig. 4. A compacted and sintered lu
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THE MANAGEMENT SYSTEM EVOLUTION OF
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etween CRPq specific process and IP
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aspect audits, mainly in relation t
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1 2 3 4 5 6 7 8 9 A B C D E F G H F
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MCNP5 is capable of calculating ter
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Similar to the case of stainless st
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LEU FUEL DISPOSITION AT WWR-M REACT
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Tested fuel assembles are load in t
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The PNPI experience of tests with W
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CURRENT UTILIZATION AND LONG TERM S
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Uusimaa hospital district decided t
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FiR 1 has an important regional rol
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STUDYING OF INFLUENCE OF A NEUTRON
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Definition of crystal structure and
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Microhardness measurement shows, th
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THE SPENT FUEL STORAGE AT THE DALAT
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2. Interim storage of spent fuel On
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A rotating bridge crane of 3.6-ton
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In order to investigate the perform
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(a) (b) Fig. 2. (a) low and (b) hig
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(a) (b) (c) (d) (e) (f) Fig. 5. TEM
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Spot Al Si Mo U Zr G 90.6 7.8 0.6 0
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volume in the material, which affec
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THE STEREOMETRIC ANALYSIS OF GAS PO
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of the crack of pillowing). It show
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One gets the impression that during
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switch from a fast to a thermal spe
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He production to fission ratio vs t
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INSPECTION EXPERIENCE WITH IEA-R1 S
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camera system, received from IAEA i
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core in the beginning 2007 (IEA-174
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RRFM 2009 Transactions - European Nuclear Society

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