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AES VHF inductively coupled plasmatron may be applied to wide range of studies. It enables rapid microanalysis of various solutions including biological objects and peripheral blood serum. In addition, it may be used for investigation of…

生物物理 · 物理学 2007-07-23 Vasil G. Bregadze , Eteri S. Gelagutashvili , Ketevan J. Tsakadze

A laser-induced acoustic desorption source, developed for use at central facilities, such as free-electron lasers, is presented. It features prolonged measurement times and a fixed interaction point. A novel sample deposition method using…

Because gadolinium (Gd) has the highest thermal neutron capture cross section, resulting in an 8 MeV gamma cascade upon capture, it has been proposed for dissolution in water Cherenkov detectors to achieve efficient neutron tagging…

仪器与探测器 · 物理学 2024-02-12 Lluis Marti-Magro , Luis Labarga

The dynamics following the photoexcitation of Na and Li atoms located on the surface of helium nanodroplets has been investigated in a joint experimental and theoretical study. Photoelectron spectroscopy has revealed that excitation of the…

原子与分子团簇 · 物理学 2017-08-23 Alberto Hernando , Manuel Barranco , Martí Pi , Evgeniy Loginov , Marina Langlet , Marcel Drabbels

In this paper we introduce a new diagnostic technique that uses prominence EUV and UV absorption to determine the prominence plasma electron temperature and column emission measure, as well as He/H relative abundance; if a realistic…

太阳与恒星天体物理 · 物理学 2015-06-11 E. Landi , F. Reale

Water absorption is identified in the atmosphere of HD209458b by comparing models for the planet's transmitted spectrum to recent, multi-wavelength, eclipse-depth measurements (from 0.3 to 1 microns) published by Knutson et al. (2007). A…

天体物理学 · 物理学 2014-11-18 T. S. Barman

A new modeling way of describing the continuous absorption of electromagnetic (EM) radiation in dense partially ionized hydrogen plasma is tested in this work. It is shown that the obtained results give a possibility of calculating spectral…

太阳与恒星天体物理 · 物理学 2012-08-14 A. A. Mihajlov , N M Sakan , V. A. Sreckovic , Y. Vitel

Absorption imaging of ultracold atoms is the foundation for quantitative extraction of information from experiments with ultracold atoms. Due to the limited exposure time available in these systems, the signal-to-noise ratio is largest for…

This paper presents a detailed study of chromospheric evaporation using the EUV Imaging Spectrometer (EIS) onboard Hinode in conjunction with HXR observations from RHESSI. The advanced capabilities of EIS were used to measure Doppler shifts…

太阳与恒星天体物理 · 物理学 2015-05-13 Ryan O. Milligan , Brian R. Dennis

The plasma parameters such as electron distribution function and electron density of three atmospheric-pressure transient discharges namely filamentary and homogeneous dielectric barrier discharges in air, and the spark discharge of argon…

等离子体物理 · 物理学 2015-05-30 Sandra Keller , Priyadarshini Rajasekaran , Nikita Bibinov , Peter Awakowicz

We present helium atom micro-diffraction as an ideal technique for characterization of 2D materials due to its ultimate surface sensitivity combined with sub-micron spatial resolution. Thermal energy neutral helium scatters from the valence…

We have investigated the adsorption and desorption of helium near its liquid-vapor critical point in silica aerogels with porosities between 95% and 98%. We used a capacitive measurement technique which allowed us to probe the helium…

软凝聚态物质 · 物理学 2009-11-11 Tobias Herman , James Day , John Beamish

Optical properties of compressed fluid hydrogen in the region where dissociation and metallization is observed are computed by ab-initio methods and compared to recent experimental results. We confirm that above 3000 K both processes are…

材料科学 · 物理学 2019-09-04 Giovanni Rillo , Miguel A. Morales , David M. Ceperley , Carlo Pierleoni

Absorption microscopy is a powerful technique, enabling the detection of single non- fluorescent molecules at room temperature. So far, the molecular absorption has been probed optically via the attenuation of a probing laser. The…

应用物理 · 物理学 2018-11-21 Miao-Hsuan Chien , Mario Brameshuber , Gerhard J. Schütz , Silvan Schmid

In this work is examined a new modeling way of describing the continuous absorption of electromagnetic (EM) radiation in a dense partially ionized hydrogen plasmas with electron densities about $5\cdot10^{18}$ cm$^{-3}$ -…

太阳与恒星天体物理 · 物理学 2018-03-14 A. A. Mihajlov , N. M. Sakan , V. A. Sreckovic , Y. Vitel

The density of two-dimensional Ag adatom gases on W(110) is determined by monitoring local electron reflectivity using low energy electron microscopy (LEEM). This method of adatom concentration measurement can detect changes in adatom…

材料科学 · 物理学 2007-05-23 J. de la Figuera , N. C. Bartelt , K. F. McCarty

Energy dispersive X-ray fluorescence (EDXRF) is a widely used non-destructive technique for micro and trace multi-element analysis of materials. Conventional trials show that using laboratory assisted EDXRF measurements, one can obtain…

材料科学 · 物理学 2021-11-08 Md. Akhlak Alam , M. K. Tiwari , Ayushi Trivedi , Ajay Khooha , A. K. Singh

The available diagnostics for atmospheric micro-plasmas remain limited and relatively complex to implement; so we present a radio-frequency technique for diagnosing a key parameter here. The technique allows one to estimate the dependencies…

We report on time-resolved measurements of electron number density by continuous-wave laser absorption in a low-energy nanosecond-scale laser-produced spark in atmospheric pressure air. Laser absorption is a result of free-free and…

等离子体物理 · 物理学 2021-05-19 T. Yong , A. I. Abdalla , M. A. Cappelli

Dew-harvesting technology radiatively cools a condenser below the dewpoint to achieve condensation of the water vapor from the atmosphere. Due to its passive nature, this technology has attracted a broad interest, in particular in the…

应用物理 · 物理学 2019-10-21 Minghao Dong , Zheng Zhang , Yu Shi , Xiaodong Zhao , Shanhui Fan , Zhen Chen
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