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One hundred and five isotopes of the transuranium elements neptunium, plutonium, americium, curium, berkelium and californium have so far been observed; the discovery of these isotopes is discussed. For each isotope a brief summary of the…

核实验 · 物理学 2015-06-04 C. Fry , M. Thoennessen

Ordered intermetallics are long believed to be the final products of the aging of U-Nb solid solutions at low temperatures, a crucial property for the practical applications of this alloy in engineering and industry. However, such…

材料科学 · 物理学 2023-03-28 Xiao L. Pan , Hao Wang , Lei L. Zhang , Yu F. Wang , Xiang R. Chen , Hua Y. Geng , Ying Chen

Raman spectroscopy is a powerful analytical tool with applications ranging from quality control to cutting edge biomedical research. One particular area which has seen tremendous advances in the past decade is the development of powerful…

信号处理 · 电气工程与系统科学 2020-06-19 M. Hamed Mozaffari , Li-Lin Tay

Spectra of quasars at high redshift with high resolution and high signal-to-noise allow in favorable circumstances detection of absorption by deuterium and ultimately measurement of its primordial abundance. Ultraviolet spectra of high…

天体物理学 · 物理学 2008-02-03 Craig J. Hogan

Since the discovery in 1932, neutrons became a basis of many methods used not only in research, but also in industry and engineering. Among others, the exceptional role in the modern nuclear engineering is played by the neutron activation…

医学物理 · 物理学 2013-10-03 M. Silarski

In this study structural and mechanical properties of a 1 um thick Al2O3 coating, deposited on 316L stainless steel by Pulsed Laser Deposition (PLD), subjected to high energy ion irradiation were assessed. Mechanical properties of pristine…

An air cargo inspection system combining two nuclear reaction based techniques, namely Fast-Neutron Resonance Radiography and Dual-Discrete-Energy Gamma Radiography is currently being developed. This system is expected to allow detection of…

We present a new version of the compiled catalogue of nearby stars for which was published the spectoscopically determined effective temperatures, surface gravities, and abundances of iron, magnesium, calcium, silicon, and titanium.…

天体物理学 · 物理学 2007-10-25 T. V. Borkova , M. S. Katchieva , B. A. Marsakov , D. M. Pitkina

Numerous particle physics experiments utilize gadolinium (Gd), a rare earth element with the most significant neutron capture cross-section among all elements, to detect anti-neutrinos via inverse beta-decays or to remove neutron-induced…

仪器与探测器 · 物理学 2023-06-13 Y. Sakakieda , K. Hosokawa , F. Nakanishi , Y. Hino , Y. Inome , A. Sakaguchi , Y. Takaku , M. Ikeda , H. Sekiya

A systematic survey of ions that could be responsible for features in the optical spectra of supernovae is carried out. Six different compositions that could be encountered in supernovae are considered. For each composition, the LTE optical…

天体物理学 · 物理学 2009-10-30 K. Hatano , D. Branch , A. Fisher , J. Deaton , E. Baron

Matching a target spectrum with known spectra in a spectral library is a common method for material identification in hyperspectral imaging research. Hyperspectral spectra exhibit precise absorption features across different wavelength…

计算机视觉与模式识别 · 计算机科学 2024-06-21 Sampriti Soor , Priyanka Kumari , B. S. Daya Sagar , Amba Shetty

New generation dark matter experiments aim at exploring the 10e-9 - 10e-10 pb cross-section region for the WIMP-nucleon scalar interactions. Neutrons produced in the detector components are one of the main factors that can limit detector…

高能物理 - 唯象学 · 物理学 2008-11-26 V. Tomasello , V. A. Kudryavtsev , M. Robinson

Materials selection for rare event physics requires high performance detectors and customized analyses. In this context a novel $\beta$-$\gamma$ detection system, comprised of a liquid scintillator in coincidence with a HPGe, was developed…

核实验 · 物理学 2022-04-13 A. Barresi , D. Chiesa , M. Nastasi , E. Previtali , M. Sisti

Long-slit medium-resolution spectra of the Galactic globular clusters (GCs) NGC6229 and NGC6779, obtained with the CARELEC spectrograph at the 1.93-m telescope of the Haute-Provence observatory, have been used to determine the age, helium…

太阳与恒星天体物理 · 物理学 2015-09-15 Khamidullina D. A. , Sharina M. E. , Shimansky V. V. , Davoust E

Smuggling of special nuclear materials (SNM) and nuclear devices through borders and ports of entry constitutes a major risk to global security. Technologies are needed to reliably screen the flow of commerce for the presence of high-$Z$…

应用物理 · 物理学 2020-08-25 Hin Y. Lee , Brian S. Henderson , Roberts G. Nelson , Areg Danagoulian

Surface contamination not only influences but in some cases even dominates the measured properties of two-dimensional materials. Although different cleaning methods are often used for contamination removal, commonly used spectroscopic…

Detailed chemical composition studies of stars with enhanced abundances of neutron-capture elements can provide observational constraints for neutron-capture nucleosynthesis studies and clues for understanding their contribution to the…

太阳与恒星天体物理 · 物理学 2016-08-31 Upakul Mahanta , Drisya Karinkuzhi , Aruna Goswami , Kalpana Duorah

We investigate the origin of satellite features that appear in the high-resolution x-ray absorption spectra measured at the uranium M 4 edge in compounds where the uranium atoms are in the U 6+ oxidation state. We employ a material-specific…

计算物理 · 物理学 2020-10-12 J. Kolorenc , K. Kvashnina

Neutron Resonance Transmission Analysis (NRTA) is a spectroscopic technique which uses the resonant absorption of neutrons in the epithermal range to infer the isotopic composition of an object. This spectroscopic technique has relevance in…

仪器与探测器 · 物理学 2021-05-19 Ethan A. Klein , Farheen Naqvi , Jacob E. Bickus , Hin Y. Lee , Robert J. Goldston , Areg Danagoulian

With the advent of detectors with sub-keV sensitivities, atomic ionization has been identified as a promising avenue to probe possible neutrino electromagnetic properties. The interaction cross-sections induced by millicharged neutrinos are…

高能物理 - 唯象学 · 物理学 2014-08-01 Jiunn-Wei Chen , Hsin-Chang Chi , Hau-Bin Li , C. -P. Liu , Lakhwinder Singh , Henry T. Wong , Chih-Liang Wu , Chih-Pan Wu