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The recent proposal of photon and neutrino pair beam is extensively investigated. Production rates, both differential and total, of single photon, two-photon and neutrino-pair emitted from quantum ions in circular motion are calculated for…

High Energy Physics - Phenomenology · Physics 2016-07-06 M. Yoshimura , N. Sasao

We describe a source capable of producing single barium ions through nuclear recoils in radioactive decay. The source is fabricated by electroplating 148Gd onto a silicon {\alpha}-particle detector and vapor depositing a layer of BaF2 over…

Thousands of tons of isotopic mixtures are processed annually for heavy-water production and tritium decontamination. The existing technologies remain extremely energy intensive and require large capital investments. New approaches are…

Materials Science · Physics 2017-05-18 M. Lozada-Hidalgo , S. Zhang , S. Hu , A. Esfandiar , I. V. Grigorieva , A. K. Geim

We have constructed and modeled a simple and efficient source of slow atoms. From a background vapour loaded magneto-optical trap, a thin laser beam extracts a continuous jet of cold rubidium atoms. In this setup, the extraction column that…

Atomic Physics · Physics 2009-11-07 W. Wohlleben , F. Chevy , K. Madison , J. Dalibard

A relatively simple experiment, which has been proven to be fully reproducible, shows that in solutions of water and deuterated water, sensible quantities of fluorine are generated when a triggering energy is supplied in form of electric…

Applied Physics · Physics 2022-02-09 Gordon Ross , Dominic Anwar , Daniel Sedgwick , Santos Fustero

Copper deposition has been carried out at various time span on glass slide and silicon substrate by using indigenously developed unbalanced type DC magnetron sputtering system. The main objective of this work is to study the crystalline…

Applied Physics · Physics 2020-01-27 Soumik Kumar Kundu , Samit Karmakar , G. S. Taki

Superconducting thin films with high intrinsic kinetic inductance are of great importance for photon detectors, achieving strong coupling in hybrid systems, and protected qubits. We report on the performance of titanium nitride resonators,…

Mesoscale and Nanoscale Physics · Physics 2018-12-05 A. Shearrow , G. Koolstra , S. J. Whiteley , N. Earnest , P. S. Barry , F. J. Heremans , D. D. Awschalom , E. Shirokoff , D. I. Schuster

A new H^- ion source has been installed successfully and will be used to serve the China Spallation Neutron Source (CSNS). In this paper, we report various components of the ion source, including discharge chamber, temperature, cooling…

We show that using maskless photolithography and the lift-off technique, patterned yttrium iron garnet thin films possessing ultra-low Gilbert damping can be accomplished. The films of 70 nm thickness were grown on (001)-oriented gadolinium…

A new compact electron cyclotron resonance (ECR) ion source for low current applications, designed and built in-house at the University of the Basque Country (UPV/EHU) is presented. The source was designed to use as many commercially…

This work focuses on the production of negative-ions on graphite and diamond surfaces bombarded by positive ions in a low pressure (2 Pa) low power (20 W) capacitively coupled deuterium plasma. A sample is placed opposite a mass…

Plasma Physics · Physics 2020-07-29 D. Kogut , R. Moussaoui , Ning Ning , J. Faure , J. Layet , T Farley , J. Achard , A. Gicquel , G. Cartry

Exposure of highly deuterated materials to a low-energy (nom. 2 MeV) photon beam resulted in nuclear activity of both the parent metals of hafnium and erbium and a witness material (molybdenum) mixed with the reactants. Gamma spectral…

We demonstrate generation of 10-20 MeV/u ions with a compact 4 TW laser using a gas target mixed with submicron clusters, corresponding to tenfold increase in the ion energies compared to previous experiments with solid targets. It is…

The magnetospheres of accreting neutron stars develop electrostatic gaps with huge potential drops. Protons and ions, accelerated in these gaps along the dipolar magnetic field lines to energies greater than 100 TeV, can impact onto a…

High Energy Physics - Phenomenology · Physics 2009-11-07 Luis A. Anchordoqui , Diego F. Torres , Thomas P. McCauley , Gustavo E. Romero , Felix A. Aharonian

We report on a measurement of the characteristic temperature of an ultracold rubidium ion source, in which a cloud of laser-cooled atoms is converted to ions by photo-ionization. Extracted ion pulses are focused on a detector with a…

An attempt is made to explain the recently reported occurrence of ultradense deuterium as an isothermal transition of Rydberg matter into a high density phase by quantum mechanical exchange forces. It is conjectured that the transition is…

General Physics · Physics 2010-01-24 F. Winterberg

We demonstrate a new focused ion beam sample preparation method for atom probe tomography. The key aspect of the new method is that we use a neon ion beam for the final tip-shaping after conventional annulus milling using gallium ions. This…

This research for Eco-materials focuses on the improvement of photo response of titania thin films. The goal of this research is to find a suitable substrate for decreasing the band-gap of titania, to improve the microstructure and to seek…

Materials Science · Physics 2007-05-23 Wilfried Wunderlich , Nguyen Thi Hue , Sakae Tanemura

Core-excitation of water ice releases many different molecules and ions in the gas phase. Studying these desorbed species and the underlying mechanisms can provide useful information on the effects of X-ray irradiation in ice. We report a…

Chemical Physics · Physics 2020-10-20 R. Dupuy , G. Féraud , M Bertin , C. Romanzin , L. Philippe , T. Putaud , X. Michaut , R. Cimino , V. Baglin , J. -H. Fillion

We report the creation of an ultracold neutral plasma by photoionization of laser-cooled xenon atoms. The charge carrier density is as high as 2 x 10^9 cm^-3, and the temperatures of electrons and ions are as low as 100 mK and 10 uK,…

Plasma Physics · Physics 2009-10-31 T. C. Killian , S. Kulin , S. D. Bergeson , L. A. Orozco , C. Orzel , S. L. Rolston