D. Trbojevic
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View article: Resonant matching section for CEBAF energy upgrade
Resonant matching section for CEBAF energy upgrade Open
Thomas Jefferson National Accelerator Facility (Jefferson Lab) currently studies the feasibility of upgrading its energy to 22GeV. It considers addition of six more linac passes. The highest energy passes will share two new arcs designed u…
View article: Single line ERL permanent magnet FFA accelerator for LHeC
Single line ERL permanent magnet FFA accelerator for LHeC Open
We present a Fixed-Field-Alternating (FFA) permanent magnet racetrack electron accelerator with energy range between 10-60 GeV for the future LHeC. Electron beam is brought back to the linac by the single beam line without requiring electr…
View article: Benchmark Midplane Field for Medical FFA
Benchmark Midplane Field for Medical FFA Open
This is a lattice cell for a fixed-field medical accelerator, transmitting protons from 10–250 MeV. The goal is to have fixed tunes throughout this energy range. The cell is based on the lattice Feb7 2024 ProtonAccelerator.f90 from Dejan T…
View article: Transfer of polarized 3He ions in the AtR beam transfer line
Transfer of polarized 3He ions in the AtR beam transfer line Open
In addition to collisions of electrons with various unpolarized ion species as well as polarized protons, the proposed electron-hadron collider (eRHIC) will facilitate the collisions of electrons with polarized {sup 3}He ions. The AGS is t…
View article: DESIGNING THE SPREADERS AND SPLITTERS FOR THE FFA@CEBAF ENERGY UPGRADE
DESIGNING THE SPREADERS AND SPLITTERS FOR THE FFA@CEBAF ENERGY UPGRADE Open
The FFA@CEBAF energy upgrade study aims to approximately double the final energy of the electron beam at the Continuous Electron Beam Accelerator Facility (CEBAF). It will do this by replacing the highest-energy recirculating arcs with fix…
View article: Proton and electron RLA optics design
Proton and electron RLA optics design Open
We describe optics designs of the key components of proton and electron Recirculating Linear Accelerators (RLAs). They are presented in the context of a high-power hadron accelerator being considered at ORNL and a CEBAF electron energy dou…
View article: CEBAF 22 GeV FFA energy upgrade
CEBAF 22 GeV FFA energy upgrade Open
Extending the energy reach of CEBAF by increasing the number of recirculations, while using the existing linacs is explored. This energy upgrade is based on the multi-pass acceleration of electrons in a single non-scaling Fixed Field Alter…
View article: CEBAF 22 GeV FFA energy upgrade
CEBAF 22 GeV FFA energy upgrade Open
Extending the energy reach of CEBAF by increasing the number of recirculations, while using the existing linacs is explored. This energy upgrade is based on the multi-pass acceleration of electrons in a single non-scaling Fixed Field Alter…
View article: Gantry for medical particle therapy facility
Gantry for medical particle therapy facility Open
A particle therapy gantry for delivering a particle beam to a patient includes a beam tube having a curvature defining a particle beam path and a plurality of fixed field magnets sequentially arranged along the beam tube for guiding the pa…
View article: Non-scaling fixed field alternating gradient permanent magnet cancer therapy accelerator
Non-scaling fixed field alternating gradient permanent magnet cancer therapy accelerator Open
A non-scaling fixed field alternating gradient accelerator includes a racetrack shape including a first straight section connected to a first arc section, the first arc section connected to a second straight section, the second straight se…
View article: Design of the Affordable FLASH Proton Therapy Facility with Permanent Magnets
Design of the Affordable FLASH Proton Therapy Facility with Permanent Magnets Open
View article: Permanent Magnet Future Electron Ion Colliders at RHIC and LHeC
Permanent Magnet Future Electron Ion Colliders at RHIC and LHeC Open
View article: RLAs with FFA Arcs for Protons and Electrons
RLAs with FFA Arcs for Protons and Electrons Open
Recirculating Linear Accelerators (RLAs) provide an efficient way of producing high-power, high-quality, continuous-wave hadron and lepton beams. However, their attractiveness had been limited by the cumbersomeness of multiple recirculatin…
View article: Electron Accelerator Lattice Design for LHeC with Permanent Magnets
Electron Accelerator Lattice Design for LHeC with Permanent Magnets Open
We present a new ’green energy’ approach to the Energy Recovery Linac (ERL) the future Electron Ion Collider at LHeC using single beam line made of very strong focusing combined function permanent magnets and the Fixed Field Alternating Li…
View article: Current Status of the FFA@CEBAF Energy Upgrade Study
Current Status of the FFA@CEBAF Energy Upgrade Study Open
This work will describe the current status of the FFA@CEBAF energy upgrade feasibility studies. Technical updates are given, but more specific details are left to separate contributions. Specifically, this work will discuss improvements to…
View article: Fast Cycling FFA Permanent Magnet Synchrotron
Fast Cycling FFA Permanent Magnet Synchrotron Open
We present a novel concept of the Fixed-Field-Alternating (FFA) small racetrack proton accelerator 10x6 size, with kinetic energy range between 30-250 MeV made of permanent magnets. The horizontal and vertical tunes are fixed within the en…
View article: Superb Fixed Field Permanent Magnet Proton Therapy Gantry
Superb Fixed Field Permanent Magnet Proton Therapy Gantry Open
We present the top notch design of the proton therapy gantry made of permanent magnets with very strong focusing. This represents a superb solution fulfilling all cancer treatment requirements for all energies without changing any paramete…
View article: Technology Spinoff and Lessons Learned from the 4-Turn ERL CBETA
Technology Spinoff and Lessons Learned from the 4-Turn ERL CBETA Open
The Cornell-BNL ERL Test Accelerator (CBETA) developed several energy-saving measures: multi-turn energy recovery, low-loss superconducting radiofrequency (SRF) cavities, and permanent magnets. With green technology becoming imperative for…
View article: Design Status Update of the Electron-Ion Collider
Design Status Update of the Electron-Ion Collider Open
The design of the electron-ion collider EIC to be constructed at Brookhaven National Laboratory has been continuously evolving towards a realistic and robust design that meets all the requirements set forth by the nuclear physics community…
View article: Permanent Magnets Future Electron Ion Colliders at RHIC and LHeC
Permanent Magnets Future Electron Ion Colliders at RHIC and LHeC Open
We present a new ’green energy’ approach to the Energy Recovery Linac (ERL) and Recirculating Linac Accelerators (RLA) for the future Electron Ion Colliders (EIC) using single beam line made of very strong focusing combined function perman…
View article: 20-24 GeV FFA CEBAF Energy Upgrade
20-24 GeV FFA CEBAF Energy Upgrade Open
A proposal was formulated to increase the CEBAF energy from the present 12 GeV to 20-24 GeV by replacing the highest-energy arcs with Fixed Field Alternating Gradient (FFA) arcs. The new pair of arcs would provide six or seven new beam pas…
View article: CBETA: First Multipass Superconducting Linear Accelerator with Energy Recovery
CBETA: First Multipass Superconducting Linear Accelerator with Energy Recovery Open
Energy recovery has been achieved in a multipass linear accelerator, demonstrating a technology for more compact particle accelerators operating at higher currents and reduced energy consumption. Energy delivered to the beam during the fir…
View article: Simulation of the CBETA 4-pass FFAG ERL using field maps — exclusively
Simulation of the CBETA 4-pass FFAG ERL using field maps — exclusively Open
The Cornell-BNL Electron Test Accelerator (CBETA), a four-pass, 150 MeV energy recovery linac (ERL), is now in construction at Cornell. Commissioning commenced on March 2019. A particularity of CBETA is that a single channel loop recircula…
View article: The dipole corrector magnets for the FFAG beam line of the CBETA accelerator
The dipole corrector magnets for the FFAG beam line of the CBETA accelerator Open
The Cornell Brookhaven Experimental Test Reactor (CBETA) is a novel, and the first of its kind accelerator to combine two remarkable concepts, the Energy Recovery Linac (ERL) and the Fixed Field Alternating Gradient (FFAG) concept. The acc…
View article: Computation of magnetic fields from field components on a plane grid
Computation of magnetic fields from field components on a plane grid Open
View article: Beam Commissioning Results from the CBETA Fractional Arc Test (CBETA Note 030)
Beam Commissioning Results from the CBETA Fractional Arc Test (CBETA Note 030) Open
This work describes first commissioning results from the Cornell Brookhaven ERL Test Accelerator fractional arc test. These include the recommissioning of the Cornell photoinjector, the first full energy operation of the main linac with be…
View article: Equipment Protection System for CBETA
Equipment Protection System for CBETA Open
The ultimate goal of CBETA is to be the first high-current multi turn Energy Recovery Linac operating at 40 mA. The power of highest energy beam at this configuration is going to be 6 MW. Hence equipment protection against radiation is an …
View article: Beam Commissioning Results from the CBETA Fractional Arc Test
Beam Commissioning Results from the CBETA Fractional Arc Test Open
This work describes first commissioning results from the Cornell Brookhaven Energy Recovery Test Accelerator Fractional Arc Test. These include the recommissioning of the Cornell photo-injector, the first full energy operation of the main …
View article: eRHIC Design Overview
eRHIC Design Overview Open
The Electron-Ion Collider (EIC) is being envisioned as the next facility to be constructed by the DOE Nuclear Physics program. Brookhaven National Laboratory is proposing eRHIC, a facility based on the existing RHIC complex as a cost effec…
View article: Electromagnetic Study and Measurements of the iRCMS Cell
Electromagnetic Study and Measurements of the iRCMS Cell Open
The ion Rapid Cycle Medical Synchrotron (iRCMS) * will provide proton and C ion bunches with maximum energy 270 MeV and 450 MeV/u respectively at a frequency of 15 Hz for treating cancerous tumors. One of the six cells of the iRCMS has bee…