Results 41 to 50 of about 43,589 (118)

Silver nanoparticles embedded in polystyrene-polyvinyl pyrrolidone nanocomposites using γ-ray irradiation: Physico-chemical properties

Results in Physics, 2017
γ-Ray irradiation is used for the synthesis of silver–Polystyrene polyvinyl pyrrolidone nanocomposite microspheres with a controlled shape, size, and functional properties.
Islam Ali, Mahmoud R. Akl, Gamal A. Meligi, Tawfik A. Saleh   +3 more
doaj   +1 more source

Mechanical Activation of Mixtures SiO2/γ-Fe2O3 and its Impact on the Distribution of Valence Electrons

Фізика і хімія твердого тіла, 2016
Crystalline and electronic structures of SiO2/γ-Fe2O3 mixtures have been analyzed using X-ray diffraction (XRD) and ultra-soft X-ray emission spectroscopy (USXES).
Ya. V. Zaulychnyy, Y. V. Yavorskyi, V. М. Gun'ko, V. I. Zarko, V. Ya. lkiv, М. V. Karpetz, V. О. Kotsyubynsky   +6 more
doaj   +1 more source

Search for shape coexistence in the Selenium isotopes near the N=50 neutron shell closure [PDF]

EPJ Web of Conferences
Aim of this contribution is the investigation of the shape coexistence phenomenon in the neutron-rich Selenium (Z=34) isotopes at or near the N=50 shell closure, by γ-ray spectroscopy.
Ciconali G., Conca F., Bottoni S., Leoni S., Fornal B., Sferrazza M., Michelagnoli C., Mărginean N., Corbari G., Luciani M., Colombi G., Crespi F., Cieplicka N., Iskra L., Jentschel M., Koester U., Borcea R., Boromiza M., Călinescu S., Clisu-Stan C., Costache C., Filipescu D., Florea N., Gheorghe I., Ionescu A., Mărginean R., Mihai C., Mihai R.E., Neacșu C., Negreț A., Niță C.R., Olăcel-Coman A., Pascu S., Petrone C., Stan L., Sotty C., Turturică A., Turturică G., Toma S., Ujeniuc S.   +39 more
doaj   +1 more source

Exploring fission dynamics of 232Th(9Be,f) following prompt γ-ray spectroscopy

Physics Letters B
Fission fragment spectroscopic measurement has been carried out for the system, 232Th(9Be,f) at Elab = 46 MeV. The prompt gamma rays decaying from the excited states of the fission fragments were detected using the INGA (Indian National Gamma Array ...
Krishna Debnath, Aniruddha Dey, P.K. Nayak, A.K. Mondal, R. Shil, A. Kundu, Biswajit Das, K. Mandal, S. Biswas, P. Dey, A. Bairagya, Vishal Malik, A. Sindhu, B. Mukherjee, D.C. Biswas, R. Palit, K. Banerjee, S. Mukhopadhyay, A. Chakraborty   +18 more
doaj   +1 more source

Effect of 2,6-Bis-(1-hydroxy-1,1-diphenyl-methyl) Pyridine as Organic Additive in Sulfide NiMoP/γ-Al2O3 Catalyst for Hydrodesulfurization of Straight-Run Gas Oil

Molecules, 2017
The effect of 2,6-bis-(1-hydroxy-1,1-diphenyl-methyl) pyridine (BDPHP) in the preparation of NiMoP/γ-Al2O3 catalysts have been investigated in the hydrodesulfurization (HDS) of straight-run gas oil.
Carlos Eduardo Santolalla-Vargas, Victor Santes, Erick Meneses-Domínguez, Vicente Escamilla, Agileo Hernández-Gordillo, Elizabeth Gómez, Felipe Sánchez-Minero, José Escobar, Leonardo Díaz, Oscar Goiz   +9 more
doaj   +1 more source

Strong γ-ray emission from neutron unbound states populated in β-decay: Impact on (n,γ) cross-section estimates

EPJ Web of Conferences, 2017
Total absorption gamma-ray spectroscopy is used to measure accurately the intensity of γ emission from neutron-unbound states populated in the β-decay of delayed-neutron emitters.
Tain J.L., Guadilla V., Valencia E., Algora A., Zakari-Issoufou A.-A., Rice S., Meur L. Le, Agramunt J., Äystö J., Batist L., Bowry M., Briz J.A., Bui V.M., Caballero-Folch R., Cano-Ott D., Cucoanes A., Elomaa V.-V., Eronen T., Estevez E., Estienne M., Fallot M., Farrelly G.F., Fraile L.M., Ganioglu E., Garcia A.R., Gelletly W., Gómez-Hornillos B., Gorelov D., Gorlychev V., Hakala J., Jokinen A., Jordan M.D., Kankainen A., Kolhinen V.S., Kondev F.G., Koponen J., Lebois M., Martínez T., Mason P., Mendoza E., Monserrate M., Montaner-Pizá A., Moore I., Nacher E., Orrigo S.E.A., Penttilä H., Podolyák Zs., Pohjalainen I., Porta A., Regan P.H., Reinikainen J., Reponen M., Rinta-Antila S., Rissanen J., Rubio B., Rytkönen K., Shiba T., Sonnenschein V., Sonzogni A.A., Vedia V., Voss A., Wilson J.N.   +61 more
doaj   +1 more source

Orbital motion detected in γ Cas Fe K emission lines

Astronomy & Astrophysics
A subset of Be stars, typified by the naked-eye star γ Cas, exhibits unusually bright and hard X-ray emission, the origin of which has remained debated for five decades.
Nazé Yaël, Tsujimoto Masahiro, Rauw Gregor, Gunderson Sean J.   +3 more
doaj   +1 more source

Prompt gamma ray-spectroscopy of N = 50 fission fragments

EPJ Web of Conferences, 2013
Excited states in the nuclei 83As and 84,86Se have been studied via prompt γ-ray spectroscopy. The nuclei were produced by the proton-induced fission of a 238U target, at the accelerator of the University of Jyväskylä.
Drouet F., Simpson G.S., Vancraeyenest A., Gey G., Kessedjian G., Malkiewicz T., Ramdhane M., Sage C., Thiamova G., Grahn T., Greenlees P.T., Hauschild K., Herzan A., Jakobsson U., Jones P., Julin R., Juutinen S., Ketelhut S., Lopez-Martens A., Nieminen P., Peura P., Rahkila P., Rinta-Antila S., Ruotsalainen P., Sandzelius M., Saren J., Scholey C., Sorri J., Uusitalo J.   +28 more
doaj   +1 more source

Multiwavelength Evidence for Two New Candidate Transitional Millisecond Pulsars in the Subluminous Disk State: 4FGL J0639.1-8009 and 4FGL J1824.2+1231

The Astrophysical Journal
We report the discovery of two new Galactic accreting compact objects consistent with the respective positions of the unassociated Fermi-LAT γ -ray sources 4FGL J0639.1-8009 and 4FGL J1824.2+1231. A combination of new and archival X-ray data from Chandra,
Rebecca Kyer, Subhroja Roy, Jay Strader, Ryan Urquhart, Isabella Molina, Peter Craig, Laura Chomiuk   +6 more
doaj   +1 more source

Polyurethane-based foam composites: synthesis, structural characteristics, and radiation shielding properties

Scientific Reports
This study investigates the potential of pure polyurethane (PU) foam as a lightweight, cost-effective shielding material against ionizing radiation, emphasizing its adaptability for incorporating high-performance fillers.
Hussein Oraby, Ghada E. Hegazy, Soliman M. ElTalawy, Islam M. Nabil   +3 more
doaj   +1 more source