6533b838fe1ef96bd12a4654
RESEARCH PRODUCT
Measurement of the Pu-242(n,gamma) cross section from thermal to 500 keV at the Budapest research reactor and CERN n_TOF-EAR1 facilities
O. AberleG. CortesC. RubbiaRugard DresslerV. KhryachkovP. M. MilazzoPedro G. FerreiraMario WeigandA. OpreaTamás BelgyaA. GoverdovskiL. CosentinoE. JerichaA. TsinganisPaolo FinocchiaroDorothea SchumannJ. A. RyanL. AudouinF. MingroneK. RajeevJ. Lerendegui-marcoJ. L. TainA. KimuraD. M. CastelluccioD. M. CastelluccioJ. AndrzejewskiFrancesca MatteucciFrancesca MatteucciI. KnapovaA. MusumarraF. CeruttiNicola ColonnaM. A. Cortés-giraldoT. MartinezNiko KivelI. F. GonçalvesI. DuranMario BarbagalloF. GunsingF. GunsingV. VlachoudisG. VanniniG. VanniniA. R. GarcíaCristian MassimiCristian MassimiP. VazP. J. WoodsP. C. RoutM. CaamañoTanja HeftrichC. WeissC. WeissG. TaglienteC. LedererAlberto VenturaJ. MarganiecA. Riego-perezAriel Tarifeño-saldiviaS. J. LonsdaleM. MireaV. BécaresM. BruggerD. MacinaS. HeinitzCarlos GuerreroCarlos GuerreroR. VlastouD. Cano-ottM. DiakakiY. KadiA. PavlikF. CalviñoH. LeebB. Fernández-domínguezA. CasanovasF. KäppelerE. ChiaveriJavier PraenaJavier PraenaS. Lo MeoS. Lo MeoN. PatronisA. K. SaxenaC. Domingo-pardoE. BerthoumieuxDiego VescoviJ. PerkowskiS. ValentaArnaud FerrariD. G. JenkinsP. F. MastinuF. BečvářM. BacakMarco CalvianiC. BeinruckerC. WolfP. KavriginKathrin GöbelE. MendozaAlberto MengoniA. G. SmithRalf NolteJ. BillowesJan HeyseE. Leal-cidonchaPeter SchillebeeckxE. GriesmayerTatsuya KatabuchiD. BosnarL. A. DamoneL. A. DamoneM. KrtiičkaR. CardellaEmilio Andrea MaugeriS. BarrosM. KokkorisA. GawlikJ. I. PorrasJ. I. PorrasRene ReifarthT. GlodariuThomas RauscherThomas RauscherS. WarrenRoberto LositoStefan SchmidtJ. M. QuesadaL. Tassan-gotY. H. ChenV. VarialeP. V. SedyshevArnd R. JunghansPetar ŽUgecPetar ŽUgecE. González-romeroV. KetlerovV. FurmanKlaus EberhardtT. J. WrightS. MontesanoA. StamatopoulosM. MastromarcoAnton WallnerJ. BalibreaM. Sabaté-gilarteM. Sabaté-gilarteHideo HaradaE. DupontBoglárka Marótisubject
PhysicsLarge Hadron ColliderIsotope010308 nuclear & particles physicsFissionPhysicsQC1-999n_TOF 242Pu neutron capture neutron time of flight[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]01 natural sciences7. Clean energyResonance (particle physics)Nuclear physicsStack (abstract data type)0103 physical sciencesNeutronResearch reactorNuclear Physics - ExperimentNeutron activation analysis010306 general physicsdescription
The design and operation of innovative nuclear systems requires a better knowledge of the capture and fission cross sections of the Pu isotopes. For the case of capture on 242Pu, a reduction of the uncertainty in the fast region down to 8-12% is required. Moreover, aiming at improving the evaluation of the fast energy range in terms of average parameters, the OECD NEA High Priority Request List (HPRL) requests high-resolution capture measurements with improved accuracy below 2 keV. The current uncertainties also affect the thermal point, where previous experiments deviate from each other by 20%. A fruitful collaboration betwen JGU Mainz and HZ Dresden-Rossendorf within the EC CHANDA project resulted in a 242Pu sample consisting of a stack of seven fission-like targets making a total of 95(4) mg of 242Pu electrodeposited on thin (11.5 μm) aluminum backings. This contribution presents the results of a set of measurements of the 242Pu(n, γ) cross section from thermal to 500 keV combining different neutron beams and techniques. The thermal point was determined at the Budapest Research Reactor by means of Neutron Activation Analysis and Prompt Gamma Analysis, and the resolved (1 eV - 4 keV) and unresolved (1 - 500 keV) resonance regions were measured using a set of four Total Energy detectors at the CERN n_TOF-EAR1. European Commission 334315, 605203 Ministerio de Economía y Competitividad FPA2013-45083-P, FPA2014-53290-C2-2-P, FPA2016-77689-C2-1-R German Federal Ministry for Education and Research (BMBF) 03NUK13A
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-05-19 |