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Title: Heavy ion linear accelerator for radiation damage studies of materials

Abstract

A new eXtreme MATerial (XMAT) research facility is being proposed at Argonne National Laboratory to enable rapid in situ mesoscale bulk analysis of ion radiation damage in advanced materials and nuclear fuels. This facility combines a new heavy-ion accelerator with the existing high-energy X-ray analysis capability of the Argonne Advanced Photon Source. The heavy-ion accelerator and target complex will enable experimenters to emulate the environment of a nuclear reactor making possible the study of fission fragment damage in materials. Material scientists will be able to use the measured material parameters to validate computer simulation codes and extrapolate the response of the material in a nuclear reactor environment. Utilizing a new heavy-ion accelerator will provide the appropriate energies and intensities to study these effects with beam intensities which allow experiments to run over hours or days instead of years. The XMAT facility will use a CW heavy-ion accelerator capable of providing beams of any stable isotope with adjustable energy up to 1.2 MeV/u for U-238(50+) and 1.7 MeV for protons. This energy is crucial to the design since it well mimics fission fragments that provide the major portion of the damage in nuclear fuels. The energy also allows damage to bemore » created far from the surface of the material allowing bulk radiation damage effects to be investigated. The XMAT ion linac includes an electron cyclotron resonance ion source, a normal-conducting radio-frequency quadrupole and four normal-conducting multi-gap quarter-wave resonators operating at 60.625 MHz. This paper presents the 3D multi-physics design and analysis of the accelerating structures and beam dynamics studies of the linac.« less

Authors:
ORCiD logo; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science - Office of Nuclear Physics; USDOE Office of Science - Office of Basic Energy Sciences - Materials Sciences and Engineering Division
OSTI Identifier:
1376718
DOE Contract Number:
AC02-06CH11357
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 88; Journal Issue: 3
Country of Publication:
United States
Language:
English

Citation Formats

Kutsaev, Sergey V., Mustapha, Brahim, Ostroumov, Peter N., Nolen, Jerry, Barcikowski, Albert, Pellin, Michael, and Yacout, Abdellatif. Heavy ion linear accelerator for radiation damage studies of materials. United States: N. p., 2017. Web. doi:10.1063/1.4978280.
Kutsaev, Sergey V., Mustapha, Brahim, Ostroumov, Peter N., Nolen, Jerry, Barcikowski, Albert, Pellin, Michael, & Yacout, Abdellatif. Heavy ion linear accelerator for radiation damage studies of materials. United States. doi:10.1063/1.4978280.
Kutsaev, Sergey V., Mustapha, Brahim, Ostroumov, Peter N., Nolen, Jerry, Barcikowski, Albert, Pellin, Michael, and Yacout, Abdellatif. Wed . "Heavy ion linear accelerator for radiation damage studies of materials". United States. doi:10.1063/1.4978280.
@article{osti_1376718,
title = {Heavy ion linear accelerator for radiation damage studies of materials},
author = {Kutsaev, Sergey V. and Mustapha, Brahim and Ostroumov, Peter N. and Nolen, Jerry and Barcikowski, Albert and Pellin, Michael and Yacout, Abdellatif},
abstractNote = {A new eXtreme MATerial (XMAT) research facility is being proposed at Argonne National Laboratory to enable rapid in situ mesoscale bulk analysis of ion radiation damage in advanced materials and nuclear fuels. This facility combines a new heavy-ion accelerator with the existing high-energy X-ray analysis capability of the Argonne Advanced Photon Source. The heavy-ion accelerator and target complex will enable experimenters to emulate the environment of a nuclear reactor making possible the study of fission fragment damage in materials. Material scientists will be able to use the measured material parameters to validate computer simulation codes and extrapolate the response of the material in a nuclear reactor environment. Utilizing a new heavy-ion accelerator will provide the appropriate energies and intensities to study these effects with beam intensities which allow experiments to run over hours or days instead of years. The XMAT facility will use a CW heavy-ion accelerator capable of providing beams of any stable isotope with adjustable energy up to 1.2 MeV/u for U-238(50+) and 1.7 MeV for protons. This energy is crucial to the design since it well mimics fission fragments that provide the major portion of the damage in nuclear fuels. The energy also allows damage to be created far from the surface of the material allowing bulk radiation damage effects to be investigated. The XMAT ion linac includes an electron cyclotron resonance ion source, a normal-conducting radio-frequency quadrupole and four normal-conducting multi-gap quarter-wave resonators operating at 60.625 MHz. This paper presents the 3D multi-physics design and analysis of the accelerating structures and beam dynamics studies of the linac.},
doi = {10.1063/1.4978280},
journal = {Review of Scientific Instruments},
number = 3,
volume = 88,
place = {United States},
year = {Wed Mar 01 00:00:00 EST 2017},
month = {Wed Mar 01 00:00:00 EST 2017}
}
  • Current amplification of heavy-ion beams is an integral feature of the induction linac approach to heavy-ion fusion (HIF). In this paper we report on amplification experiments conducted on a single beam of the Multiple Beam Experiment (MBE-4), a heavy-ion (Cs{sup +}) induction linac. Earlier MBE-4 experiments [H. Meuth {ital et al.}, Nucl. Instrum. Methods Phys. Res. A {bold 278}, 153 (1989)] had demonstrated up-to-9{times} current amplification but had been accompanied by an up-to-2{times} increase of normalized transverse emittance. Experiments to pinpoint the causes of this emittance growth indicated various factors were responsible, including focusing aberrations and mismatch difficulties between themore » injector diode and the accelerator transport lattice, a localized quadrupole misalignment problem, and the interaction of transversely large beams with the nonlinear elements of the focusing lattice. Following ameliorative measures, new current amplification experiments, both with and without acceleration, showed that current amplifications of up to 3{times} and line charge density increases of up to {approx}2{times} could be achieved without increasing the beam{close_quote}s normalized transverse emittance. Finally, both the transverse beam dynamics, and beam current and energy measurements were accurately modeled by numerical particle-in-cell simulations and longitudinal dynamics codes, respectively. {copyright} {ital 1997 American Institute of Physics.}« less
  • The injector for the main driver linear accelerator of the Rare Isotope Science Project in Korea, has been developed to allow heavy ions up to uranium to be delivered to the inflight fragmentation system. The critical components of the injector are the superconducting electron cyclotron resonance (ECR) ion sources, the radio frequency quadrupole (RFQ), and matching systems for low and medium energy beams. We have built superconducting magnets for the ECR ion source, and a prototype with one segment of the RFQ structure, with the aim of developing a design that can satisfy our specifications, demonstrate stable operation, and provemore » results to compare the design simulation.« less
  • An accelerator is described which was designed to study irradiation damage in soils. The machine produces beams of protons and ions of the rare gases, He, Ne, Ar, Kr, and Xe, carrying currents up to 100 mu a and 10 to 100 kev focused down to spot diameters of the order of a mm on the target. Ions from an r-f source are focused by an Einzel lens and accelerated to final energy in a single gap,; the convergent beam is then magnetically analyzed by a 30 deg sector magnet and directed onto the target by a pair of strongmore » focusing electrostatic quadrupole lenses. An allmetal vacuum system was constructed giving pressures between 10/sup -7/ and 10/sup -8/ mm Hg in the target-chamber. (auth)« less