Three–dimensional simulations of a solid graphite target for high intensity fast extracted uranium beams for the Super–FRS

Tahir, N. A.; Matveichev, Alexey; Kim, V.; Ostrik, A. V.; Shutov, A.; Sultanov, V. G.; Ломоносов, И. В.; Piriz, A. R.; Hoffmann, D. H. H.

doi:10.1017/s0263034609000020

Cited by 14 publications

(11 citation statements)

References 35 publications

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“…Currently the scientific community shows great interest in warm dense matter phenomena, which are studied with intense laser and particle beams. Most of this work does address basic physics issues of matter under extreme conditions Ni, et al, 2008;Piriz et al, 2002Piriz et al, , 2003aPiriz et al, , 2003bPiriz et al, , 2005Piriz et al, , 2006Piriz et al, , 2008Tahir et al, 1999Tahir et al, , 2000aTahir et al, , 2000bTahir et al, , 2001aTahir et al, , 2001bTahir et al, , 2003Tahir et al, , 2004Tahir et al, , 2005bTahir et al, , 2005cTahir et al, , 2006Tahir et al, , 2007aTahir et al, , 2007bTahir et al, , 2008bTahir et al, , 2009aTahir et al, , 2009bTemporal et al, 2003Temporal et al, , 2005 or is related to inertial fusion physics (Bangerter et al, 1982;Deutsch, 1986;Logan et al, 2008;Long & Tahir, 1982, 1986, 1987Piriz & Wouchuk, 1992;Tahir & Long, 1982, 1983, 1984. …”

Section: Hydrodynamic Simulation Resultsmentioning

confidence: 99%

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Simulations of full impact of the Large Hadron Collider beam with a solid graphite target

et al. 2009

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The Large Hadron Collider (LHC) will operate with 7 TeV/c protons with a luminosity of 10 34 cm 22 s 21 . This requires two beams, each with 2808 bunches. The nominal intensity per bunch is 1.15 Â 10 11 protons and the total energy stored in each beam is 362 MJ. In previous papers, the mechanisms causing equipment damage in case of a failure of the machine protection system was discussed, assuming that the entire beam is deflected onto a copper target. Another failure scenario is the deflection of beam, or part of it, into carbon material. Carbon collimators and beam absorbers are installed in many locations around the LHC close to the beam, since carbon is the material that is most suitable to absorb the beam energy without being damaged. In case of a failure, it is very likely that such absorbers are hit first, for example, when the beam is accidentally deflected. Some type of failures needs to be anticipated, such as accidental firing of injection and extraction kicker magnets leading to a wrong deflection of a few bunches. Protection of LHC equipment relies on the capture of wrongly deflected bunches with beam absorbers that are positioned close to the beam. For maximum robustness, the absorbers jaws are made out of carbon materials. It has been demonstrated experimentally and theoretically that carbon survives the impact of a few bunches expected for such failures. However, beam absorbers are not designed for major failures in the protection system, such as the beam dump kicker deflecting the entire beam by a wrong angle. Since beam absorbers are closest to the beam, it is likely that they are hit first in any case of accidental beam loss. In the present paper we present numerical simulations using carbon as target material in order to estimate the damage caused to carbon absorbers in case of major beam impact.

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Section: Hydrodynamic Simulation Resultsmentioning

confidence: 99%

“…Due to its robustness, carbon is very widely used in construction of the production targets for generating radioactive beams (Tahir et al, 2005a(Tahir et al, , 2008a(Tahir et al, , 2008b(Tahir et al, , 2009a.…”

Section: Introductionmentioning

confidence: 99%

Simulations of full impact of the Large Hadron Collider beam with a solid graphite target

et al. 2009

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“…However, such target concept has never been employed in practice for very high intensity fast extracted beams like those at the Super-FRS. Extensive theoretical work has been carried out over the past years [38][39][40][41][42][43] to design a viable solid graphite production target for the Super-FRS. Substantial progress has been made in this respect as summarized below.…”

Section: The Super-frs Production Targetmentioning

confidence: 99%

“…To find a solution to this problem, we have carried out extensive theoretical studies over the past years. A brief overview of this work is presented in this paper while the details can be found elsewhere [38]- [43].…”

Section: Introductionmentioning

confidence: 99%

High Energy Density Physics Studies at the Facility for Antiprotons and Ion Research: the HEDgeHOB Collaboration

Tahir

Shutov

Ломоносов

et al. 2011

Contrib. Plasma Phys.

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The forthcoming Facility for Antiprotons and Ion Research (FAIR) at Darmstadt, is going to be a unique accelerator facility that will deliver high quality, strongly bunched, well focused, intense beams of heavy ions that will lead to unprecedented specific power deposition in solid matter. This will generate macroscopic samples of High Energy Density (HED) matter with fairly uniform physical conditions. These samples can be used to study the thermophysical and transport properties of HED matter. Extensive theoretical work has been carried out over the past decade to design numerous dedicated experiments to study HED physics at the FAIR, which has provided the basis for the HEDgeHOB (High Energy Density Matter Generated by Heavy Ion Beams) scientific proposal. This work is still in progress as the feasibility studies for more experimental schemes are being carried out.Another, very important research area that will benefit tremendously from the FAIR facility, is the production of radioactive beams. A superconducting fragment separator, Super-FRS is being designed for the production and separation of rare radioactive isotopes. Unlike the HED targets, the Super-FRS production target should not be destroyed or damaged by the beam, but should remain intact during the long experimental campaign. However, the high level of specific power deposited in the production target by the high intensity ion beam at FAIR, could cause serious problems to the target survival. These HED issues related to the Super-FRS production target are also discussed in the present paper.

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“…Present results, however, have shown that due to three dimensional effects the maximum intensity that can be used with such a target is limited to 3 × 10(11) ions per spill [23], [24], [25], [26].…”

Section: Outreach Of High Energy Density Experiments Into Other Fieldmentioning

confidence: 99%

High Energy Density Physics with Heavy Ion Beams and related Interaction Phenomena

Hoffmann

Tahir²,

Udrea

et al. 2010

Contrib. Plasma Phys.

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High intensity particle beams from accelerators induce high energy density states in bulk matter. Due to the specific nature of the ion-matter interaction a volume of matter is heated uniformly with low gradients of temperature and pressure in the initial phase, depending on the pulse structure of the beam with respect to space and time. We present an overview on recent results and developments of beam plasma, and beam matter interaction experiments with heavy ion and laser beams.

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Three–dimensional simulations of a solid graphite target for high intensity fast extracted uranium beams for the Super–FRS

Cited by 14 publications

References 35 publications

Simulations of full impact of the Large Hadron Collider beam with a solid graphite target

Simulations of full impact of the Large Hadron Collider beam with a solid graphite target

High Energy Density Physics Studies at the Facility for Antiprotons and Ion Research: the HEDgeHOB Collaboration

High Energy Density Physics with Heavy Ion Beams and related Interaction Phenomena

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