Engineering topics

Kostroun, V.

Publications and source records attributed to Kostroun, V..

6 records

DOE OSTI2024

Beam Dynamics of the Strong Hadron Cooler ERL at the Electron-Ion Collider

The Strong Hadron Cooler Energy Recovery Linac (SHC-ERL) for the Electron-Ion Collider (EIC) is required to produce an electron beam with a bunch charge of 1 nC, an average current of 100 mA, and a beam energy of both 150 and 55 MeV, with strict requirements for the transverse emittance, slice energy spread, and longitudinal distribution. This paper covers the design in detail, including preliminary considerations of higher order effects and diagnostics.

Deitrick, K.↗

DOE OSTI2024

Design Overview of the Strong Hadron Cooler ERL at the Electron-Ion Collider

The Electron-Ion Collider (EIC) is currently under development to be built at Brookhaven National Lab and requires cooling during collisions in order to preserve the quality of the hadron beam despite degradation due to intra-beam scattering and beam-beam effect. An Energy Recovery Linac (ERL) is being designed to deliver the necessary electron beam for Coherent electron Cooling (CeC) of the hadron beam, with an electron bunch charge of 1 nC and an average current of 100 mA; two modes of operation are being developed for 150 and 55 MeV electrons, corresponding to 275 and 100 GeV protons. The injector of this Strong Hadron Cooler ERL (SHC-ERL) is shared with the Injection Cooler ERL, which cools lower energy proton beams via bunched beam cooling, as used in the Low Energy RHIC electron Cooling (LEReC). This talk introduces the layout and presents a high-level overview of the design.

Deitrick, K.↗

DOE OSTI2024

Development of an ERL for Coherent Electron Cooling at the Electron-Ion Collider

The Electron-Ion Collider (EIC) is currently under development to be built at Brookhaven National Lab and requires cooling during collisions in order to mitigate the hadron beam emittance degradation due to intra-beam scattering and beam-beam effects. An Energy Recovery Linac (ERL) is being designed to deliver the necessary electron beam for Coherent electron Cooling (CeC) of the hadron beam, with an electron bunch charge of 1 nC and an average current of 100 mA; two modes of operation are being developed for 150 and 55 MeV electrons, corresponding to 275 and 100 GeV protons. The injector of this Strong Hadron Cooler ERL (SHC-ERL) is shared with the Pre-cooler ERL, which cools lower energy proton beams via bunched beam cooling, as used in the Low Energy RHIC electron Cooling (LEReC). This paper reviews the current state of the design.

Deitrick, K.↗

DOE OSTI2023

DESIGN AND OPTIMIZATION OF AN ERL FOR COOLING EIC HADRON BEAMS

The baseline scheme for hadron beam cooling in the Electron Ion Collider (EIC) calls for Coherent electron Cooling (CeC) of the hadrons with non-magnetized electrons at high energy (150 MeV electrons) and additional cooling via conventional bunched beam cooling using a precooler system. The electron beam parameters for these concepts are at or beyond the current state of the art, with electron bunch charges on the order of 1 nC and average currents on the order of 100 mA and requiring an Energy Recovery Linac (ERL) to produce such beams. Using specifications provided by BNL and JLab, physicists and engineers at Xelera Research are working on a complete design of an ERL system capable of cooling EIC hadrons.

Gulliford, C.↗

DOE OSTI2019

MAGNETIZED GRIDDED THERMIONIC ELECTRON SOURCE

A crucial part of achieving JLab's proposed electron ion collider (JLEIC) design luminosity is the application of electron cooling to reduce the ion emittance. One required cooling method is Bunched Beam Cooling (BBC). This cooling process requires beam characteristics that are difficult to achieve. In particular, a high current magnetized electron beam. Here we present a magnetized gridded cathode thermionic electron source, deigned and built by Xelera Research LLC as part of the DOE SBIR program, that could represent the correct technology to use in achieving BBC, as well as a beamline at JLab that will be used to characterize the source.

Stefani, M.↗

DOE OSTI2019

Equipment Protection System for CBETA

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 important issue. Through our stages of commissioning we will slowly increase the beam current, starting from 100 pA all the way to 1 mA during the current commissioning phase. The electron beams hitting any in-vacuum component either on purpose (e.g. view screens, beam stops or during commissioning) or due to some component failure will generate a radiation shower which has the potential to damage various parts of the accelerator. In this document, we describe the various scenarios which generate unwanted radiation in our machine and list the damage thresholds of critical components. Then we discuss our diagnostic systems which can detect component failure and the resulting radiation generated. We further list the possible beam modes of the machine which we have designed taking into account the damage thresholds and the sensitivity of the diagnostics. Finally, we document our design of the Equipment Protection System (EPS) and outline protocols of calibration and operation.

43 PARTICLE ACCELERATORS↗