Design development and implementation of an irradiation station at the neutron time-of-flight facility at CERN

Ferrari, Matteo; Senajova, Dominika; Aberle, O.; Aguiar, Ygor Quadros de; Baillard, D.; Barbagallo, M.; Bernardes, A. P.; Buonocore, Luca Rosario; Cecchetto, Matteo; Clerc, Vincent; Castro, Mario Di; Alía, Rubén García; Girod, S.; Grenard, Jean-Louis; Kershaw, K.; Lerner, G.; Maeder, M. M.; Makovec, A.; Mengoni, A.; Ornedo, M. Perez; Pozzi, Fabio; Almagro, Carlos Veiga; Calviani, M.

doi:10.1103/physrevaccelbeams.25.103001

Cited by 17 publications

(14 citation statements)

References 29 publications

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“…Complementary to the tests performed in gamma facilities, irradiations in a mixed field in-house station are possible at CERN since July 2021 as well, to investigate the dependence of specific radiation effects on the radiation type and spectrum. CERN is now equipped with a parasitic irradiation station located close to the spallation target of the Neutron Time-Of-Flight (n TOF) facility [11], the i-NEAR station [12].…”

Section: The I-near Mixed Field Irradiation Station At Cernmentioning

confidence: 99%

“…Temperature and atmosphere are not controlled during irradiation. Further details on the dosimetry and on the specific irradiation conditions available at i-NEAR can be found in [12].…”

Section: The I-near Mixed Field Irradiation Station At Cernmentioning

confidence: 99%

“…A selection of specific products currently in use at CERN, including special rad-hard formulations and general purpose ones, is currently being irradiated in gamma irradiation and at i-NEAR [12].…”

Section: A Selected Epdm Materialsmentioning

confidence: 99%

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“Radiation to Materials” at CERN

Ferrari

Alía

Giles

et al. 2023

IEEE Trans. Nucl. Sci.

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Irradiation tests are continuously needed at the European Organization for Nuclear Research (CERN), to experimentally assess the radiation tolerance of commercial nonmetallic materials for use in high-radiation areas. The 'Radiation to Materials' R2M activity organizes such tests and provides expertise in the interpretation of results, for the design and upgrade of devices absorbing critical doses during their lifetime. The various activities covered by the R2M are presented. Up to ten irradiation tests per year are organized in external 60 Co facilities, in which samples absorb up to several MGy of gamma dose at dose rates in the kGy/h range. Cables, O-rings, lubricants, glues, optical materials, and insulators are examples of possible tested materials. In parallel, selected samples are irradiated in a mixed neutron and gamma irradiation station built close to the Neutron Time-Of-Flight facility. Dedicated research studies, mainly focused on oil, greases and elastomeric O-rings, are being performed to deepen the understanding of radiation effects in these critical materials. As an example, the mechanical and structural characterization of two elastomeric EPDM-based commercial materials irradiated in gamma radiation up to 3 MGy of dose is presented.

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Section: The I-near Mixed Field Irradiation Station At Cernmentioning

confidence: 99%

“…Temperature and atmosphere are not controlled during irradiation. Further details on the dosimetry and on the specific irradiation conditions available at i-NEAR can be found in [12].…”

Section: The I-near Mixed Field Irradiation Station At Cernmentioning

confidence: 99%

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“Radiation to Materials” at CERN

Ferrari

Alía

Giles

et al. 2023

IEEE Trans. Nucl. Sci.

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“…Following the upgrades carried out in 2021, the NEAR station, a third irradiation area, has been constructed in the proximity of the n_TOF target and can be subdivided into two main regions. The location inside the shielding of the target has the aim of providing high dose levels (on the order of MGy) to study radiation damage in materials [19], while the location outside the shielding was employed in this work for electronics irradiation. Specifically, the shielding incorporates a collimator so that a portion of the produced high-intensity neutrons can be conveyed in the outside area, as detailed in [19].…”

Section: Near Station At the N_tof Facilitymentioning

confidence: 99%

Electronics Irradiation With Neutrons at the NEAR Station of the n_TOF Spallation Source at CERN

Cecchetto

Barbero

Lerner

et al. 2023

IEEE Trans. Nucl. Sci.

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We study the neutron field at the NEAR station of the neutron time of flight (n_TOF) facility at CERN, through Monte Carlo simulations, well-characterized static random access memories (SRAMs) and radio-photo-luminescence (RPL) dosimeters, with the aim of providing neutrons for electronics irradiation. Particle fluxes and typical quantities relevant for electronics testing were simulated for several test positions at NEAR and compared to those at the CERN high energy accelerator mixed-field facility (CHARM), highlighting similitudes and differences. The SRAM detectors, based on single event upset (SEU) and single event latch-up (SEL) counts, each one with a different energy response, and RPL dosimeters were tested in a reference position and the results were benchmarked to FLUKA simulations. Finally, the neutron spectra at NEAR are compared to those of the most well-known spallation sources and typical environments of interest, for accelerator and atmospheric applications, showing the potential of the facility for electronics irradiation.

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“…selecting the materials used in accelerators, a process that requires a better understanding of how different materials respond to intense levels of radiation. Now he and others at CERN have installed an experimental setup at the laboratory to investigate this issue [1].…”

Section: Credit: M Ferrari Et Al (N_tof Collaboration) [1]mentioning

confidence: 99%