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Multi-turn Injection scheme with gaseous stripper is usually used in high intensity and super heavy ion injection process. With its advantage of long lifetime and uniformity, a gaseous stripper is proposed based on the under construction…

Accelerator Physics · Physics 2013-10-30 Xiucui Xie , Mingtao Song , Xiaohu Zhang

Laser ion source (LIS), which can provide carbon beam with highly stripped state (C6+) and high intensity (several tens mA), would significantly change the overall design of the hadrontherapy facility. A LIS based hadrontherapy facility is…

Accelerator Physics · Physics 2015-06-17 Xiucui Xie , Mingtao Song , Xiaohu Zhang

A new accelerator complex, HIAF (the High Intensity Heavy Ion Accelerator Facility), has been approved in China. It is designed to provide intense primary and radioactive ion beams for research in high energy density physics, nuclear…

Beam stripping losses of H- ion beams by interactions with residual gas and electromagnetic fields are evaluated. These processes play an important role in compact cyclotrons where the beam is produced on an internal ion source, and they…

Negative hydrogen ions are often used for injecting protons from linacs to storage rings via charge-exchange injection. In this process, the two electrons are stripped by a foil or laser to produce protons which can be merged with an…

Accelerator Physics · Physics 2021-08-04 B. T. Folsom , M. Eshraqi , N. Blaskovic Kraljevic , B. Gålnander

We present an upgrade to the particle-in-cell ion beam simulation code OPAL that enables us to run highly realistic simulations of the spiral inflector system of a compact cyclotron. This upgrade includes a new geometry class and field…

Accelerator Physics · Physics 2017-12-20 Daniel Winklehner , Andreas Adelmann , Achim Gsell , Tulin Kaman , Daniela Campo

The low relative charge-to-mass ratio offset of 0.065% between fully ionized helium-4 and carbon-12 ions enables simultaneous acceleration in hadron therapy synchrotrons. At the same energy per mass, helium ions exhibit a stopping range…

This study describes computer simulations of carbonization and graphite formation, including the effects of hydrogen, nitrogen, oxygen, and sulfur. We introduce a novel technique to simulate carbonization, "Simulation of Thermal Emission of…

Materials Science · Physics 2023-08-31 C. Ugwumadu , R. Olson , N. L. Smith , K. Nepal , Y. Al-Majali , J. Trembly , D. A. Drabold

The search is now on for, new materials that can be used for ionic stripping. Materials that maximize the stripping of the structural ion are important for conducting experiments with quark-gluon plasma. Although this paper is a theoretical…

Atomic Physics · Physics 2018-01-17 D. N. Makarov , V. I. Matveev

Laser spectroscopy studies are being prepared to measure the 1s ground state hyperfine splitting in trapped cold highly charged ions. The purpose of such experiments is to test quantum electrodynamics in the strong electric field regime.…

We present a detailed study of quantum simulations of coupled spin systems in surface-electrode ion-trap arrays, and illustrate our findings with a proposed implementation of the hexagonal Kitaev model [A. Kitaev, Annals of Physics 321,2…

Quantum Physics · Physics 2011-12-01 Roman Schmied , Janus H. Wesenberg , Dietrich Leibfried

Medical synchrotrons are often used for testing instrumentation in high-energy physics or non-clinical research in medical physics. In many applications of medical synchrotrons, such as microdosimetry and ion imaging, precise knowledge of…

To this day the interaction of high-intensity lasers with matter is considered to be a possible candidate for next generation particle accelerators. Within the LIGHT collaboration crucial work for the merging of a high-intensity laser…

Accelerator Physics · Physics 2018-12-26 J. Ding , D. Schumacher , D. Jahn , A. Blazevic , M. Roth

We present the design and simulation of a prototype gas cell for in-gas-jet laser-ionization and spectroscopy studies using the low energy branch of the SPIRAL2-S$^3$ radioactive-ion-beam facility. The prototype aims to demonstrate the…

Instrumentation and Detectors · Physics 2026-01-21 W. Dong , V. Manea , R. Ferrer , S. Franchoo , S. Geldhof , F. Ivandikov , N. Lecesne , D. Lunney , V. Marchand , E. Minaya Ramirez , E. Morin , S. Raeder

A prototype plastic scintillating fibre based beam profile monitor was tested at the Heidelberg Ion Therapy Centre / \textit{Heidelberg Ionenstrahl Therapiezentrum} (HIT) in 2016 to determine its beam property reconstruction performance and…

Instrumentation and Detectors · Physics 2018-06-27 B. D. Leverington , M. Dziewiecki , L. Renner , R. Runze

In order to investigate the longitudinal beam dynamics during the adiabatic capture and acceleration processes of the CRing in HIAF project, a simulation of both processes above is carried out with $U^{34+}$ ions. The ions will be captured…

Accelerator Physics · Physics 2014-10-14 Peng Shang , Da-yu Yin , Jia-wen Xia , Jian-cheng Yang , Guo-feng Qu , Wen-heng Zheng , Zhong-shan Li , Shuang Ruan

Damages are created in a sacrificial layer of silicon dioxide by ion implantation to enhance the etch rate of silicon-dioxide in liquid and vapor phase hydrofluoric acid. The etch rate ratio between implanted and unimplanted silicon dioxide…

By representing damage induction by ionizing particles and its repair by the cell, the probabilistic two-stage model provides a detailed description of the main processes involved in cell killing by radiation. To link this model with issues…

Biological Physics · Physics 2016-08-16 Pavel Kundrát

The problems of stripper target behavior in the nonstationary intense particle beams are considered. The historical sketch of studying of radiation damage failure of carbon targets under ion bombardment is presented. The simple model of…

Accelerator Physics · Physics 2008-11-26 S. G. Lebedev , A. S. Lebedev

We fabricate and characterize carbon-fiber tips for their use in combined scanning tunneling and force microscopy based on piezoelectric quartz tuning fork force sensors. An electrochemical fabrication procedure to etch the tips is used to…

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