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The continual increase in computational power and the improvement of algorithms for particle tracking in the past decade have been making it feasible to track larger amounts of particles in 3D Volumetric Particle Tracking Velocimetry…

Optics · Physics 2025-02-11 H. Abitan , Y. Zhang , S. l. Ribergård , C. M. Velte

Particle Imaging Velocimetry (PIV) estimates the flow of fluid by analyzing the motion of injected particles. The problem is challenging as the particles lie at different depths but have similar appearance and tracking a large number of…

Computer Vision and Pattern Recognition · Computer Science 2020-03-24 Zhong Li , Jinwei Ye , Yu Ji , Hao Sheng , Jingyi Yu

Ionisation cluster size distributions produced in the sensitive volume of an ion-counting wall-less nanodosimeter by monoenergetic carbon ions with energies between 45 MeV and 150 MeV were measured at the TANDEM-ALPI ion accelerator…

Instrumentation and Detectors · Physics 2017-10-11 G. Hilgers , M. U. Bug , H. Rabus

We have demonstrated a detection scheme for atom laser beams that allows for a continuous measurement of the atom density and readout of the data in real-time. The atoms in the atom laser beam are transferred locally from the lower to the…

Soft Condensed Matter · Physics 2009-11-07 Michael Köhl , Theodor W. Hänsch , Tilman Esslinger

Nanoscale focused ion beams (FIBs) represent one of the most useful tools in nanotechnology, enabling nanofabrication via milling and gas-assisted deposition, microscopy and microanalysis, and selective, spatially resolved doping of…

Atomic Physics · Physics 2021-06-09 J. J. McClelland , A. V. Steele , B. Knuffman , K. A. Twedt , A. Schwarzkopf , T. M. Wilson

Optimally doped single crystals of Ba(Fe$_{1-x}$T$_x$)$_2$As$_2$ (T=Co, Ni) were irradiated with 1.4 GeV $^{208}$Pb$^{56+}$ ions at fluences corresponding to matching fields of $B_{\phi}=0.1, 0.5, 1$ and 2 T. Magneto-optical imaging has…

Superconductivity · Physics 2010-03-15 R. Prozorov , M. A. Tanatar , B. Roy , N. Ni , S. L. Bud'ko , P. C. Canfield , J. Hua , U. Welp , W. K. Kwok

In this paper we show that state-of-the-art commercial off-the-shelf Flash memory chip technology (20 nm technology node with multi-level cells) is quite sensitive to ionizing radiation. We find that the fail-bit count in these Flash chips…

Instrumentation and Detectors · Physics 2018-09-25 Preeti Kumari , Levi Davies , Narayana P. Bhat , En Xia Zhang , Michael W. McCurdy , Daniel M. Fleetwood , Biswajit Ray

The gamma radiation in samples of a variety of natural tiling rocks (granites) imported in Cyprus for use in the building industry was measured, employing high-resolution gamma-ray spectroscopy. The rock samples were pulverized, sealed in 1…

Medical Physics · Physics 2007-05-23 M. Tzortzis , H. Tsertos , S. Christofides , G. Christodoulides

We realize a single particle microscope by using deterministically extracted laser cooled $^{40}$Ca$^+$ ions from a Paul trap as probe particles for transmission imaging. We demonstrate focusing of the ions with a resolution of…

This study aims to introduce IViST (In Vivo Source Tracking), a novel multi-sensors dosimetry platform for real-time treatment monitoring in HDR brachytherapy. IViST is a platform that comprises 3 parts: 1) an optimized and characterized…

Medical Physics · Physics 2020-06-16 Haydee M. Linares Rosales , Audrey Cantin , Sylviane Aubin , Sam Beddar , Luc Beaulieu

High-precision line intensities are of great value in various applications, such as greenhouse gas metrology, planetary atmospheric analysis, and trace gas detection. Here we report simultaneous measurements of cavity-enhanced absorption…

Chemical Physics · Physics 2024-09-12 Q. Huang , Y. Tan , R. -H. Yin , Z. -L. Nie , J. Wang , S. -M Hu

The Infra-Red Video Bolometer (IRVB) is a diagnostic equipped with an infra-red camera that measures the total radiated power in thousands of LOSs within a large field of view (FOV). Recently validated in MAST-U, it offers a high spatial…

Plasma Physics · Physics 2025-01-23 Fabio Federici , Jack J. Lovell , G. A. Wurden , Byron J. Peterson , Kiyofumi Mukai

A new method for measuring the electron temperature of the plasma in GOL-NB facility is proposed. The proposed method is based on measuring the ratio of intensities of spectral lines emitted by fast atoms injected into the plasma. The beams…

Plasma Physics · Physics 2023-07-31 S. Polosatkin

We propose the use of trapped ions for detection of millicharged dark matter. Millicharged particles will scatter off the ions, giving a signal either in individual events or in the overall heating rate of the ions. Ion traps have several…

High Energy Physics - Phenomenology · Physics 2021-08-12 Dmitry Budker , Peter W. Graham , Harikrishnan Ramani , Ferdinand Schmidt-Kaler , Christian Smorra , Stefan Ulmer

Synchrotron radiation with the characteristic of high brilliance, high level of polarization, high collimation, low emittance and wide tunability in energy has been used as a standard source in metrology(1, 2). For a decade, lots of…

Instrumentation and Detectors · Physics 2019-08-17 LI Hua-Peng , Kun Tang , Yi-Dong Zhao , Lei Zheng , Shu-Hu Liu , Xiao-Liang Zhao , Ya-Shuai Zhao

Laser measurements of the intensity of (201) 3$_{22}$ -- (000) 2$_{21}$ near-infrared water absorption line at 10670.1 \cm\ are made using three different Herriott cells. These measurements determine the line intensity with an standard…

Chemical Physics · Physics 2023-01-11 Tom M. Rubin , Marian Sarrazin , Nikolai F. Zobov , Jonathan Tennyson , Oleg L. Polyansky

We present an experimental scheme which combines the well established method of velocity-mapimaging, with a cold trapped metastable neon target. The device is used for obtaining the branching ratios and recoil-ion energy distributions for…

Atomic Physics · Physics 2019-09-04 B. Ohayon , H. Rahangdale , J. Chocron , R. Kosloff , O. Heber , G. Ron

The purpose of this study was to investigate the feasibility of extracting proton beams with two distinct energies within a single synchrotron cycle. The energy difference between the beams should be sufficient to use one beam as a range…

Accelerator Physics · Physics 2025-06-25 Alexander A. Pryanichnikov , Dmitry Shwartz , Jon Feldmand , Joao Seco , Maria Francesca Spadea

We report a laser wakefield acceleration of electron beams up to 130 MeV from laser-driven 4-mm long nitrogen gas jet. By using a moderate laser intensity (3.5*10^18 W.cm^(-2)) and relatively low plasma densities (0.8*10^18 cm^(-3) to…

Plasma Physics · Physics 2014-10-14 Mengze Tao , Nasr A. M. Hafz , Song Li , Mohammad Mirzaie , Liming Chen , Fei He , Ya Cheng , Jie Zhang

The demonstration of universal quantum logic operations near the fault-tolerance threshold establishes ion-implanted near-surface donor atoms as a plausible platform for scalable quantum computing in silicon. The next technological step…