Design and operation of the air-cooled beam dump for the extraction line of CERN’s proton synchrotron booster

Perillo‐Marcone, Antonio; Calviani, M.; Solieri, Nicola; Ciccotelli, A.; Kaiser, Peter K.; Sarrio, A.; Venturi, V.; Vlachoudis, V.

doi:10.1103/physrevaccelbeams.23.063001

Cited by 5 publications

(3 citation statements)

References 11 publications

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“…To avoid direct contact of leaked water with the graphite blocks, the use of 30 cm support plates as heat sinks with water channels drilled inside the plate body has been considered. The support-and the outer heat-sink plates are assumed to be made of a copper-chromium-zirconium (CuCr1Zr-UNS C18150 [201]) alloy, similar to that used for the new proton synchroton booster-(PSB [202]) and the ESS beam dumps.…”

Section: Beam Dumpmentioning

confidence: 99%

The European Spallation Source neutrino super-beam conceptual design report

Alekou

Baussan

Bhattacharyya

et al. 2022

Eur. Phys. J. Spec. Top.

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A design study, named $${\text {ESS}}\nu {\text {SB}}$$ ESS ν SB for European Spallation Source neutrino Super Beam, has been carried out during the years 2018–2022 of how the 5 MW proton linear accelerator of the European Spallation Source under construction in Lund, Sweden, can be used to produce the world’s most intense long-baseline neutrino beam. The high beam intensity will allow for measuring the neutrino oscillations near the second oscillation maximum at which the CP violation signal is close to three times higher than at the first maximum, where other experiments measure. This will enable CP violation discovery in the leptonic sector for a wider range of values of the CP violating phase $$\delta _{{\mathrm{CP}}}$$ δ CP and, in particular, a higher precision measurement of $$\delta _{{\mathrm{CP}}}$$ δ CP . The present Conceptual Design Report describes the results of the design study of the required upgrade of the ESS linac, of the accumulator ring used to compress the linac pulses from 2.86 ms to 1.2 μs, and of the target station, where the 5 MW proton beam is used to produce the intense neutrino beam. It also presents the design of the near detector, which is used to monitor the neutrino beam as well as to measure neutrino cross sections, and of the large underground far detector located 360 km from ESS, where the magnitude of the oscillation appearance of $$\nu _{e }$$ ν e from $$\nu _{\mu }$$ ν μ is measured. The physics performance of the $${\text {ESS}}\nu {\text {SB}}$$ ESS ν SB research facility has been evaluated demonstrating that after 10 years of data-taking, leptonic CP violation can be detected with more than 5 standard deviation significance over 70% of the range of values that the CP violation phase angle $$\delta _{{\mathrm{CP}}}$$ δ CP can take and that $$\delta _{{\mathrm{CP}}}$$ δ CP can be measured with a standard error less than 8° irrespective of the measured value of $$\delta _{{\mathrm{CP}}}$$ δ CP . These results demonstrate the uniquely high physics performance of the proposed $${\text {ESS}}\nu {\text {SB}}$$ ESS ν SB research facility.

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Section: Beam Dumpmentioning

confidence: 99%

The European Spallation Source neutrino super-beam conceptual design report

Alekou

Baussan

Bhattacharyya

et al. 2022

Eur. Phys. J. Spec. Top.

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“…A total energy deposition in the beam damp core of about 840 kW/4-horns was found. The support plates and the outer heat sink plates are assumed to be made of a Copper-Chromium-Zirconium alloy [4], similar to that used for the new proton synchrotron booster [5] and the ESS dump core. Figure 5𝑎 shows the geometrical structure of the beam dump, the segmented blocks and the beam dump cooling system.…”

Section: Beam Dumpmentioning

confidence: 99%

Status of the ESSνSB Target Station

Cupiał¹,

Baussan²,

Bouquerel³

et al. 2022

Proceedings of the 22nd International Workshop on Neutrinos From Accelerators — PoS(NuFact2021)

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The goal of the ESS𝜈SB project is to discover and measure neutrino CP violation with unprecedented sensitivity. The associated ESS𝜈SB H2020 Design Study is aimed at investigating and proposing a conceptual design of a new neutrino superbeam in Europe. The Target Station is a key element of this project, since it will produce a high intensity neutrino superbeam from a 5 MW proton beam delivered by the European Spallation Source at Lund. Work Package 4 of this project focuses on the optimization of the physics performance of the elements producing the beam, such as the targets and the magnetic horns, as well as on the technical aspects related to the Target Station design. The 5 MW proton beam will be split laterally into four 1.25 MW beams, each with 1.3 µs proton pulses and 14 Hz repetition rate, which will hit four separate targets inserted inside four horns. The production of the neutrino beam under such conditions requires the development of technologies capable of working at a MW power scale, both for the target and for the other components of the target station facility. *** The 22nd International Workshop on Neutrinos from Accelerators (NuFact2021) ***

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“…The bulk part of the energy which is deposited by the electromagnetic shower needs to be captured by a beam dump [4]. The high-density material is required to absorb most of the prompt radiation produced in the beam interaction process and decrease the radiation leakage downstream of linac [5]. This project aims to determine the suitable optimal shielding and beam dump design fulfilling the radiation protection required for the 220-MeV electron beam.…”

Section: Introductionmentioning

confidence: 99%

Radiation shielding and CuCr1Zr/Pb/PE and Fe/Pb/PE beam dump design for 220-MeV electron linear accelerator

Aim-O,

Manasatitpong,

Jummunt

2023

J. Phys.: Conf. Ser.

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This paper addresses the radiation issues, in particular the photon and neutron shielding, associated with the radiation shielding room and beam dump design for the 220-MeV electron linear accelerator. The energy deposition of a 220 MeV electron dump was investigated to determine the radius and length of the core of the dump with different materials. The angle of the primary shield relative to the beam direction was studied to design the perpendicular and lateral shield wall for the linear accelerator shielding room. In addition, the labyrinth design had been considered in this case. FLUKA Monte Carlo code has been computed to perform attenuation studies of photon and neutron radiation which were produced by the electromagnetic shower and photon interactions of materials. The prompt radiation fields which are photons and neutrons distributions in this design were observed. Two types of beam dump have been investigated. The first one is composed of CuCr1Zr, lead, and polyethylene. Another one is similar, but the first layer material was changed from CuCr1Zr to iron. The simulation results revealed that the beam dump and radiation shielding wall exhibit excellent performance in attenuating both photon and neutron radiation. The capability of beam dumps to absorb electron energy is well-designed. The dose distributions around the shielding room are below the design criteria, which can be applied to use for the 220-MeV electron linear accelerator.

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Design and operation of the air-cooled beam dump for the extraction line of CERN’s proton synchrotron booster

Cited by 5 publications

References 11 publications

The European Spallation Source neutrino super-beam conceptual design report

The European Spallation Source neutrino super-beam conceptual design report

Status of the ESSνSB Target Station

Radiation shielding and CuCr1Zr/Pb/PE and Fe/Pb/PE beam dump design for 220-MeV electron linear accelerator

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