Prospects of warm dense matter research at HiRadMat facility at CERN using 440 MeV SPS proton beam

Abstract

(This is a sample cover image for this issue. The actual cover is not yet available at this time.)This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research and education use, including for instruction at the authors institution and sharing with colleagues.Other uses, including reproduction and distribution, or selling or licensing copies, or posting to personal, institutional or third party websites are prohibited. . The bunch length is 0.5 ns while two neighboring bunches are separated by 25 ns so that the beam duration is 7.2 ms. Particle intensity distribution in the transverse direction is a Gaussian and the beam can be focused to a spot size with s ¼ 0.1 mme1.0 mm. In this paper we present results using two values of s, namely 0.2 mm and 0.5 mm, respectively. The target length is 1.5 m with a radius ¼ 5cm and is facially irradiated by the beam. The energy deposition code FLUKA and the two-dimensional hydrodynamic code BIG2 are employed using a suitable iteration time to simulate the hydrodynamic and the thermodynamic response of the target. The primary purpose of this work was to design fixed target experiments for the machine protection studies at the HiRadMat (High Radiation Materials) facility at CERN. However this work has shown that large samples of High Energy Density (HED) matter will be generated in such experiments which suggests an additional application of this facility. In the present paper we emphasize the possibility of doing HED physics experiments at the HiRadMat in the future.

Numerical simulations of energy deposition caused by 50 MeV—50 TeV proton beams in copper and graphite targets

“…The interaction of the entire beam (bunch train) with the target is thus simulated iteratively. Dedicated experiments performed at the High-Radiation to Materials (HiRadMat) facility applying the 440 GeV SPS proton beam have confirmed the existence of the hydrodynamic tunneling and validated the numerical simulation strategy [22][23][24][25]. Most recently, a simulation study has illustrated that the 50 TeV FCC beam will penetrate about 350 m in copper [26,27].…”