A review of radiation-induced demagnetization of permanent magnets

Samin, Adib J.

doi:10.1016/j.jnucmat.2018.02.029

Cited by 14 publications

(5 citation statements)

References 46 publications

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“…In the future, during fullscale works on the Moon, electromagnets will be used instead of neodymium magnets. The scale of works and demagnetization problem of permanent magnets due to excessive radiation levels (Samin, 2018) would be the main factors for choosing electromagnets.…”

Section: Methodsmentioning

confidence: 99%

Magnetic Separation of Lunar Regolith as its Beneficiation for Construction Effort on the Moon

Kobaka,

Katzer,

Seweryn

2023

Artificial Satellites

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A concept of magnetic separation of regolith for production of lunar aggregate is presented in the paper. Future construction effort on the Moon will require significant amounts of concrete-like composites. The authors formulate a hypothesis that magnetic separation of regolith would be a very efficient beneficiation procedure solving multiple civil engineering problems associated with properties of raw lunar soil. For the research program, 10 lunar soil simulants were used. The magnetic separation was feasible in majority of cases. Acquired lunar aggregate would be useful for both concrete-like composite production and covering the surface of a habitat. The aims of future research are pointed out in the paper.

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Section: Methodsmentioning

confidence: 99%

Magnetic Separation of Lunar Regolith as its Beneficiation for Construction Effort on the Moon

Kobaka,

Katzer,

Seweryn

2023

Artificial Satellites

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“…by radiation [32]. The microstructure with net shape formability and the exchange coupling between Nd 2 Fe 14 B grains manifest better magnetic properties.…”

Section: Magnetic Properties Of Sm 2 Fe 17 N X As a Function Of N Con...mentioning

confidence: 99%

Current Advances in Nanocrystalline Rare Earth Based Modern Permanent Magnet

Ranjan Sahu

2024

Modern Permanent Magnets - Fundamentals and Applications

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Modern permanent magnets are the essential materials for many industries and technologies. All strong permanent magnets that contain rare earth element have wide range of application. Different processing technique, material and manufacturing methods are used to produce different types of rare earth magnets. New developments and improvement in properties are proposed based on the addition of nanocrystalline materials to address the effectiveness of rare earth magnets which is beneficial for different application. This chapter reviews the fundamental aspect and progress of rare earth modern magnet along with the need of essential key factor for future development of cost-effective rear earth permanent magnets.

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“…The demagnetization of permanent magnets by high doses of radiation have been studied by many experiments (for a review see [45] or [46]). The degree of demagnetization depends both on the radiation (particle type, energy and dose), the magnet itself (material, dimension, manufacturer, preparation, etc.)…”

Section: Magnetsmentioning

confidence: 99%

Relativistic Particle Measurements in Jupiter’s Magnetosphere with Pix.PAN

Hulsman

Azzarello

et al. 2023

Preprint

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Pix.PAN is a compact cylindrical magnetic spectrometer, intended to provide excellent high energy particle measurements under high rate and hostile operating conditions in space. Its principal design is composed of 2 Halbach-array magnetic sectors and 6 Timepix4-based tracking layers; the latest hybrid silicon pixel detector readout ASIC designed. Due to Pix.PAN's compact and relatively simple design, it has the potential to be used for space missions exploring with measurements of unprecedented precision, high energy particles in radiation belts and the heliophere (solar energetic particles, anomalous and galactic cosmic rays). In this white paper, we discuss the design and expected performance of Pix.PAN for COMPASS (Comprehensive Observations of Magnetospheric Particle Acceleration, Sources, and Sinks), a mission concept submitted to NASA’s Call "B.16 Heliophysics Mission Concept Studies (HMCS)" in 2021 that targets the extreme high energy particle environment of Jupiter's inner radiation belts. We also discuss PixPAN's operational conditions and interface requirements. The conceptual design shows that is possible to achieve an energy resolution of <12% for electrons in the range of 10MeV-1GeV and <35% for protons between ~200MeV to a few GeV. Due to the timestamp precision of Timepix4, a time resolution (on an instrument level) of about 100ps can be achieved for time-of-flight measurements. In the most intense radiation environments of the COMPASS mission, Pix.PAN is expected to have a maximum hit rate of 44MHz/cm2 which is below the design limit of 360MHz/cm2 of Timepix4. Finally, a sensor design is proposed which allows the instrument to operate with a power budget of 20W without the loss of scientific performance.

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A review of radiation-induced demagnetization of permanent magnets

Cited by 14 publications

References 46 publications

Magnetic Separation of Lunar Regolith as its Beneficiation for Construction Effort on the Moon

Magnetic Separation of Lunar Regolith as its Beneficiation for Construction Effort on the Moon

Current Advances in Nanocrystalline Rare Earth Based Modern Permanent Magnet

Relativistic Particle Measurements in Jupiter’s Magnetosphere with Pix.PAN

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