Effects induced by LHC high energy beam in copper structures

Scapin, Martina; Peroni, Lorenzo; Dallocchio, Alessandro

doi:10.1016/j.jnucmat.2011.10.036

Cited by 17 publications

(10 citation statements)

References 16 publications

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“…The same approach was followed for similar calculations on other structures [29]. As discussed above, however, the rarefaction wave following the compression shock wave generated by prolonged intense impacts may significantly reduce material density.…”

Section: Transport Code / Hydrodynamic Code Coupled Solutionmentioning

confidence: 99%

An experiment to test advanced materials impacted by intense proton pulses at CERN HiRadMat facility

Bertarelli

Berthomé

Boccone

et al. 2013

Nuclear Instruments and Methods in Physics Research Section B:

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SummaryPredicting the consequences of highly energetic particle beams impacting protection devices as collimators or high power target stations is a fundamental issue in the design of state-ofthe-art facilities for high-energy particle physics. These complex dynamic phenomena, which may induce material phase transitions, extended density changes, shock waves generation, explosions, material fragment projections etc., have been successfully simulated resorting to highly non-linear numerical tools (Hydrocodes). In order to produce accurate results, however, these codes require reliable material constitutive models that, at the extreme conditions induced by a destructive beam impact, are scarce and often inaccurate. In order to derive or validate such models (Equations of State, Strength Models, Failure Models), a comprehensive, first-of-its-kind experiment has been recently carried out at CERN HiRadMat facility: performed tests entailed the controlled impact of intense and energetic proton pulses on a number of specimens made of six different materials. Experimental data were acquired, mostly in real time, relying on extensive embedded instrumentation (strain gauges, temperature and vacuum sensors) and on remote acquisition devices (laser Doppler vibrometer and high-speed camera). The dynamic ranges of the digital acquisition system were sufficient to acquire the very fast and intense shock waves generated by the impact. The high speed video camera allowed capturing a number of frames during the time of flight of the material fragments projected away from impacted specimens. This information is then benchmarked against advanced numerical simulations. Preliminary results of the tests are discussed. In depth post-irradiation analyses are foreseen once the specimens have reached a sufficiently low level of activation. The experimental method presented in this paper may find applications to test materials under very high strain rates and temperatures in domains well beyond particle physics (severe accidents in fusion and fission nuclear facilities, space debris impacts, fast and intense loadings on materials and structures etc.).-2 -

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Section: Transport Code / Hydrodynamic Code Coupled Solutionmentioning

confidence: 99%

An experiment to test advanced materials impacted by intense proton pulses at CERN HiRadMat facility

Bertarelli

Berthomé

Boccone

et al. 2013

Nuclear Instruments and Methods in Physics Research Section B:

View full text Add to dashboard Cite

show abstract

“…Therefore, an uncoupled FLUKA-ANSYS ® /AUTODYN ® approach was used, meaning that the energy deposition calculated for the first bunch on the pristine material was maintained also for subsequent bunches. The same approach was followed for similar calculations on other structures [24].…”

Section: A Simulation Toolsmentioning

confidence: 99%

High energy beam impact tests on a LHC tertiary collimator at the CERN high-radiation to materials facility

Cauchi

Aberle

Assmann

et al. 2014

Phys. Rev. ST Accel. Beams

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“…When a solid target interacts with the accelerated particle beam, the energies of the particles are deposited on the material [4]. Ionization losses after interaction between the photon beam and the collimator cause energy deposition and temperature rise in the collimator material [5].…”

Section: Introductionmentioning

confidence: 99%

Calculations of Temperature Rise in Al, Cu and Fe Photon Collimators for 8-32~MeV Photon Beams

2017

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We have focused on temperature changes in the collimator at the TARLA bremsstrahlung photon facility. One of the important parameters during the design of an ideal collimator, especially for high-energy photons, is temperature rise in the collimator material. For this purpose, energy deposition in the collimator materials was simulated using the FLUKA Monte Carlo code. Depending on energy deposition values, temperature rise in the collimator materials of Al, Cu and Fe was calculated for photon beams with 8-32 MeV energies.

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Effects induced by LHC high energy beam in copper structures

Cited by 17 publications

References 16 publications

An experiment to test advanced materials impacted by intense proton pulses at CERN HiRadMat facility

An experiment to test advanced materials impacted by intense proton pulses at CERN HiRadMat facility

High energy beam impact tests on a LHC tertiary collimator at the CERN high-radiation to materials facility

Calculations of Temperature Rise in Al, Cu and Fe Photon Collimators for 8-32~MeV Photon Beams

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