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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

In the quasi-gasdynamic high-current ion source described in this work, the plasma is sustained by high-power millimeter-wave radiation under the electron cyclotron resonance (ECR) condition. In such facilities, it is possible to achieve…

We report about the methods used in, and the performance of, the new fast and light-weight linear beam transport program MinT. MinT provides, beyond the usual linear ion optics, methods to compute the effects of beam degradation, multiple…

Accelerator Physics · Physics 2023-07-31 C. Baumgarten

Plasma acceleration has emerged as a promising technology for future particle accelerators, particularly linear colliders. Significant progress has been made in recent decades toward high-efficiency and high-quality acceleration of…

Accelerator Physics · Physics 2024-03-06 G. J. Cao , C. A. Lindstrøm , E. Adli , S. Corde , S. Gessner

Using channeling in a 5-mm crystal with bending angle of 0.65 mrad, a record high efficiency, over 60%, of particle extraction from accelerator was achieved. The extracted beam intensity was up to 5.2*10^11 protons per spill of 0.5 s…

The acceleration of charged particles, producing collimated mono-energetic beams, over short distances holds the promise to offer new tools in medicine and diagnostics. Here, we consider a possible mechanism for accelerating protons to high…

Accelerator Physics · Physics 2015-06-04 A. Holkundkar , G. Brodin , M. Marklund

The frequency and orbital angular momentum (OAM) are independent physical properties of light that both offer unbounded degrees of freedom. However, creating, processing, and detecting high-dimensional OAM states have been a pivot and…

The usage of numerical models to study the evolution of particle beams is an essential step in the design process of particle accelerators However, uncertainties of input quantities such as beam energy and magnetic field lead to simulation…

Accelerator Physics · Physics 2019-07-03 Matthias Frey , Jochem Snuverink , Christian Baumgarten , Andreas Adelmann

The physics potential of an intense source of low-energy muons is studied. Such a source is a necessary stage towards building the neutrino factories and muon colliders which are being considered at present. The CERN Neutrino Factory could…

High Energy Physics - Phenomenology · Physics 2007-05-23 J. Aysto , A. Baldini , A. Blondel , A. de Gouvea , J. Ellis , W. Fetscher , G. F. Giudice , K. Jungmann , S. Lola , V. Palladino , K. Tobe , A. Vacchi , A. van der Schaaf , K. Zuber

A compact beam-profile monitor was constructed using a linear contact image sensor attached to a plastic scintillator and tested using a 230 MeV proton beam. The results indicate that the beam distribution can be obtained in real-time, and…

Medical Physics · Physics 2019-12-23 Tung-Yuan Hsiao , Tzung-Yuang Chen , Huan Niu , Chien-Hsu Chen

Compact spin-polarized positron accelerators play a major role in promoting significant positron application research, which typically require high acceleration gradients and polarization degree, both of which, however, are still great…

Plasma Physics · Physics 2024-05-21 Zhen-Ke Dou , Chong Lv , Yousef I. Salamin , Nan Zhang , Feng Wan , Zhong-Feng Xu , Jian-Xing Li

Hadrontherapy is an emerging technique in cancer therapy that uses beams of charged particles. To meet the improved capability of hadrontherapy in matching the dose release with the cancer position, new dose monitoring techniques need to be…

Proton beams with up to 100 pC bunch charge, 0.48 MeV cut-off energy and divergence as low as a $3^{\circ}$ were generated from solid targets at kHz repetition rate by a few-mJ femtosecond laser under controlled plasma conditions. The beam…

LaBr3:Ce crystals have good scintillation properties for X-ray spectroscopy. Initially, they were introduced for radiation imaging in medical physics with either a photomultiplier or SiPM readout, and they found extensive applications in…

Instrumentation and Detectors · Physics 2023-11-29 M. Bonesini , R. Bertoni , A. Abba , F. Caponio , M. C. Prata , M. Rossella

For injection of beams into circular machines with different horizontal and vertical emittance acceptance, the injection efficiency can be increased if these beams are flat, i.e. if they feature unequal transverse emittances. Generation of…

Accelerator Physics · Physics 2011-08-01 Lars Groening

We present a design for an atomic synchrotron consisting of 40 hybrid magnetic hexapole lenses arranged in a circle. We show that for realistic parameters, hydrogen atoms with a velocity up to 600 m/s can be stored in a 1-meter diameter…

Atomic Physics · Physics 2015-01-26 Aernout P P van der Poel , Katrin Dulitz , Timothy P Softley , Hendrick L Bethlem

In order to improve the quality of thin film deposition by magnetron discharges, particularly by an effective ionization of the sputtered vapor, we developed an ionized physical vapor deposition method based on pre-ionized pulsed magnetron…

Plasma Physics · Physics 2019-06-25 Mihai Ganciu

KEK electron linac was upgraded to 8 GeV for the KEK B-Factory (KEKB) project. During the commissioning of the upgraded linac, even continuing SOR ring injections, we had achieved a primary electron beam with 10-nC (6.24 x 10^10) per bunch…

Accelerator Physics · Physics 2018-09-10 K. Furukawa , Linac Commissioning Group

A novel interferometric method is presented for the measurement of the absolute energy of electron beams. In the year 2016, a pioneering experiment was performed using a 195 MeV beam of the Mainz Microtron (MAMI). The experimental setup…

Instrumentation and Detectors · Physics 2018-10-17 P. Klag , P. Achenbach , M. Biroth , T. Gogami , P. Herrmann , M. Kaneta , Y. Konishi , W. Lauth , S. Nagao , S. N. Nakamura , J. Pochodzalla , J. Roser , Y. Toyama

The term beta-beam has been coined for the production of a pure beam of electron neutrinos or their antiparticles through the decay of radioactive ions circulating in a storage ring. This concept requires radioactive ions to be accelerated…

Accelerator Physics · Physics 2016-09-08 Mats Lindroos , the beta-beam Working Group