English
Related papers

Related papers: Report on Thermal Neutron Diffusion Length Measure…

200 papers

Diffuse neutron scattering is a valuable tool to obtain information about the size and orientation of the polar nanoregions that are a characteristic feature of relaxor ferroelectrics. In this paper, we present new diffuse scattering…

Materials Science · Physics 2009-11-07 D. La-Orauttapong , J. Toulouse , Z. -G. Ye , R. Erwin , J. L. Robertson , W. Chen

This paper presents our recent efforts to study the momentum distributions as well as the production of neutron-rich rare isotopes with heavy-ion beams in the energy region of 15 MeV/nucleon. Experimental cross sections of neutron-rich…

Nuclear Experiment · Physics 2021-03-22 S. Koulouris , G. A. Souliotis , I. Dimitropoulos , O. Fasoula , K. Palli , M. Veselsky , A. Bonasera

The temperature measurement of material inside of an object is one of the key technologies for control of dynamical processes. For this purpose, various techniques such as laser-based thermography and phase-contrast imaging thermography…

This paper deals with the comparison between thermal and Fission Enhanced Diffusion (FED) of uranium into zirconia, representative of the inner face of cladding tubes. The experiments under irradiation are performed at the Institut Laue…

Chemical Physics · Physics 2016-08-16 N. Bérerd , A. Chevarier , N. Moncoffre , P. Sainsot , H. Faust , H. Catalette

The 48Ca({\gamma},n) cross section was measured using {\gamma}-ray beams of energies between 9.5 and 15.3 MeV generated at the Triangle Universities Nuclear Laboratory (TUNL) high-intensity {\gamma}-ray source (HI{\gamma}S). Prior to this…

Nuclear Experiment · Physics 2015-05-30 J. R. Tompkins , C. W. Arnold , H. J. Karwowski , G. C. Rich , L. G. Sobotka , C. R. Howell

Cross sections for the $^{47}$Ti(n,p)$^{47}$Sc and $^{64}$Zn(n,p)$^{64}$Cu reactions have been measured for quasi-monoenergetic DD neutrons produced by the UC Berkeley High Flux Neutron Generator (HFNG). The HFNG is a compact neutron…

The perturbation method is proposed to obtain the effective delayed neutron fraction (\b{eta}eff) of a cylindrical highly enriched uranium reactor. Based on the reactivity measurements with and without a sample at a designable position…

Instrumentation and Detectors · Physics 2016-03-15 Hao-Jun Zhou , Yan-Peng Yin , Xiao-Qiang Fan , Zheng-Hong Li , Yi-Kang Pu

Using the thermal quasiparticle random phase approximation, we study the process of neutrino and antineutrino capture on hot nuclei in supernova environments. For the sample nuclei $^{56}$Fe and $^{82}$Ge we perform a detailed analysis of…

Nuclear Theory · Physics 2015-10-22 Alan A. Dzhioev , A. I. Vdovin , J. Wambach

Information on atomic-scale features is required for a better understanding of the mechanisms leading to magnetism in non-metallic, carbon-based materials. This work reports a direct evaluation of the hyperfine magnetic field produced at…

This note presents neutron scattering cross sections for polyethylene at 296 K, 77 K and 4 K derived from a new scattering kernel for neutron scattering off of hydrogen in polyethylene. The kernel was developed in ENDF-6 format as a set of…

Nuclear Theory · Physics 2010-04-27 Roger E. Hill , C. -Y. Liu

Data available in the literature of lattice parameter changes in Ni, Cu and MgO single crystals irradiated in neutron reactors are tentatively reproduced using ad hoc ion irradiation experiments. The nature and energy of the ions were…

Materials Science · Physics 2021-10-27 Xin Jin , Alexandre Boulle , Jérôme Bourcoit , Aurélien Debelle

Measurements of the decay energy released as a function of time following the thermal neutron induced fission on $^{235}$U and $^{239,241}$Pu were performed in the 1970s at Oak Ridge National Laboratory with the purpose of quantifying…

Nuclear Experiment · Physics 2023-06-05 A. A. Sonzogni , R. J. Lorek , A. Mattera , E. A. McCutchan

Accurate neutron capture cross sections are essential for the design and operation of fast reactors using MOX fuels. For $^{242}$Pu, the Nuclear Energy Agency (NEA) recommends 8--12% accuracy in the fast energy region (2--500 keV), compared…

Nuclear Experiment · Physics 2026-01-09 J. Lerendegui-Marco , C. Guerrero , E. Mendoza , J. M. Quesada , K. Eberhardt , A. R. Junghans , V. Alcayne , V. Babiano , O. Aberle , J. Andrzejewski , L. Audouin , V. Becares , M. Bacak , J. Balibrea-Correa , M. Barbagallo , S. Barros , F. Becvar , C. Beinrucker , E. Berthoumieux , J. Billowes , D. Bosnar , M. Brugger , M. Caamaño , F. Calviño , M. Calviani , D. Cano-Ott , R. Cardella , A. Casanovas , D. M. Castelluccio , F. Cerutti , Y. H. Chen , E. Chiaveri , N. Colonna , G. Cortés , M. A. Cortés-Giraldo , L. Cosentino , L. A. Damone , M. Diakaki , M. Dietz , C. Domingo-Pardo , R. Dressler , E. Dupont , I. Durán , B. Fernández-Domínguez , A. Ferrari , P. Ferreira , P. Finocchiaro , V. Furman , K. Göbel , A. R. García , A. Gawlik , T. Glodariu , I. F. Goncalves , E. González-Romero , A. Goverdovski , E. Griesmayer , F. Gunsing , H. Harada , T. Heftrich , S. Heinitz , J. Heyse , D. G. Jenkins , E. Jericha , F. Käppeler , Y. Kadi , T. Katabuchi , P. Kavrigin , V. Ketlerov , V. Khryachkov , A. Kimura , N. Kivel , M. Kokkoris , M. Krticka , E. Leal-Cidoncha , C. Lederer-Woods , H. Leeb , S. Lo Meo , S. J. Lonsdale , R. Losito , D. Macina , J. Marganiec , T. Martínez , C. Massimi , P. Mastinu , M. Mastromarco , F. Matteucci , E. A. Maugeri , A. Mengoni , P. M. Milazzo , F. Mingrone , M. Mirea , S. Montesano , A. Musumarra , R. Nolte , A. Oprea , N. Patronis , A. Pavlik , J. Perkowski , J. I. Porras , J. Praena , K. Rajeev , T. Rauscher , R. Reifarth , A. Riego-Perez , P. C. Rout , C. Rubbia , J. A. Ryan , M. Sabaté-Gilarte , A. Saxena , P. Schillebeeckx , S. Schmidt , D. Schumann , P. Sedyshev , A. G. Smith , A. Stamatopoulos , G. Tagliente , J. L. Tain , A. Tarifeño-Saldivia , L. Tassan-Got , A. Tsinganis , S. Valenta , G. Vannini , V. Variale , P. Vaz , A. Ventura , V. Vlachoudis , R. Vlastou , A. Wallner , S. Warren , M. Weigand , C. Weiss , C. Wolf , P. J. Woods , T. Wright , P. Zugec , the n_TOF Collaboration

Thermal neutron total scattering experiments of light and heavy water were reproduced using the CSNS in-house Monte Carlo thermal neutron transport code, Prompt, with a focus on the instrumental detector response and the accurate derivation…

Instrumentation and Detectors · Physics 2026-03-10 Ni Yang , Zi-Yi Pan , Ming Tang , Wen Yin , Xiao-Xiao Cai

Graphane is a quasi-two-dimensional material consisting of a single layer of fully hydrogenated graphene, with a C:H ratio of 1. We study nuclear quantum effects in the so-called chair-graphane by using path-integral molecular dynamics…

Chemical Physics · Physics 2020-08-24 Carlos P. Herrero , Rafael Ramirez

Neutron reaction data for the set of major chromium isotopes were reevaluated from the thermal energy range up to 20 MeV. In the low energy region, updates to the thermal values together with an improved $R$-matrix analysis of the resonance…

Field-scale properties of fractured rocks play crucial role in many subsurface applications, yet methodologies for identification of the statistical parameters of a discrete fracture network (DFN) are scarce. We present an inversion…

Geophysics · Physics 2022-01-05 Zitong Zhou , Delphine Roubinet , Daniel M. Tartakovsky

We formulate a microscopic theory to calculate cross section of the radiative neutron capture reaction on neutron-rich nuclei using the continuum random-phase approximation (cRPA) to the time-dependent density functional theory (TDDFT).…

Nuclear Theory · Physics 2023-06-28 Teruyuki Saito , Masayuki Matsuo

Neutron powder diffraction has been used to investigate the structural and magnetic behavior of the isoelectronically doped Fe pnictide material PrFe1-xRuxAsO. Substitution of Ru for Fe suppresses the structural and magnetic phase…

Superconductivity · Physics 2016-11-11 Yuen Yiu , V. Ovidiu Garlea , Michael A. McGuire , Ashfia Huq , David Mandrus , Stephen E. Nagler

We present x-ray powder diffraction (XRPD) and neutron diffraction measurements on the slightly underdoped iron pnictide superconductor Ba(1-x)K(x)Fe2As2, Tc = 32K. Below the magnetic transition temperature Tm = 70K, both techniques show an…