Measurements of heavy-ion anisotropy and dose rates in the Russian section of the International Space Station with the Sileye-3/Alteino detector

Larsson, Oscar; Benghin, Victor; Berger, Thomas; Casolino, M.; Fino, L. Di; Fuglesang, C.; Larosa, Marianna; Lund‐Jensen, B.; Nagamatsu, Aiko; Narici, L.; Nikolaev, Igor; Picozza, P.; Reitz, Guenther; Santis, C. De; Zaconte, V.

doi:10.1088/0954-3899/42/2/025002

Cited by 4 publications

(2 citation statements)

References 29 publications

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“…The other modules (and the nodes) strongly increase the shielding in the X direction when measuring in the USLab (X is looking through several modules and nodes), the truss is increasing the shielding in positions 3 and 4, direction Z (looking straight toward the truss), and, to a lesser extent, in direction Y (looking obliquely to the truss). The dose equivalent rate in all USLab positions is indeed much lower for the X direction, by as much as a factor of 3, confirming previous measurements Larsson et al 2015).…”

Section: Effects Of Shieldingsupporting

confidence: 89%

Radiation survey in the International Space Station

Narici

Casolino

Fino

et al. 2015

J. Space Weather Space Clim.

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The project ALTEA-shield/survey is part of an European Space Agency (ESA) -ILSRA (International Life Science Research Announcement) program and provides a detailed study of the International Space Station (ISS) (USLab and partly Columbus) radiation environment. The experiment spans over 2 years, from September 20, 2010 to September 30, 2012, for a total of about 1.5 years of effective measurements. The ALTEA detector system measures all heavy ions above helium and, to a limited extent, hydrogen and helium (respectively, in 25 Mev-45 MeV and 25 MeV/n-250 MeV/n energy windows) while tracking every individual particle. It measures independently the radiation along the three ISS coordinate axes. The data presented consist of flux, dose, and dose equivalent over the time of investigation, at the different surveyed locations. Data are selected from the different geographic regions (low and high latitudes and South Atlantic Anomaly, SAA). Even with a limited acceptance window for the proton contribution, the flux/dose/dose equivalent results as well as the radiation spectra provide information on how the radiation risks change in the different surveyed sites. The large changes in radiation environment found among the measured sites, due to the different shield/mass distribution, require a detailed Computer-Aided Design (CAD) model to be used together with these measurements for the validation of radiation models in space habitats. Altitude also affects measured radiation, especially in the SAA. In the period of measurements, the altitude (averaged over each minute) ranged from 339 km to 447 km. Measurements show the significant shielding effect of the ISS truss, responsible for a consistent amount of reduction in dose equivalent (and so in radiation quality). Measured Galactic Cosmic Ray (GCR) dose rates at high latitude range from 0.354 ± 0.002 nGy/s to 0.770 ± 0.006 nGy/s while dose equivalent from 1.21 ± 0.04 nSv/s to 6.05 ± 0.09 nSv/s. The radiation variation over the SAA is studied. Even with the reduced proton sensitivity, the high day-by-day variability, as well as the strong altitude dependence is clearly observed. The ability of filtering out this contribution from the data is presented as a tool to construct a radiation data set well mimicking deep space radiation, useful for model validations and improvements.

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Section: Effects Of Shieldingsupporting

confidence: 89%

Radiation survey in the International Space Station

Narici

Casolino

Fino

et al. 2015

J. Space Weather Space Clim.

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“…Alteino ( 46 – 52 ), often referred to as SilEye3, is an upgraded SilEye ( 53 ), which was successfully deployed in the MIR station. As all the ALTEA systems it originates from investigations of the radiation potentially causing the “Light Flash” anomalous perception to the astronauts [Ref.…”

Section: A Brief Description Of the Detectorsmentioning

confidence: 99%

Radiation Measurements Performed with Active Detectors Relevant for Human Space Exploration

et al. 2015

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A reliable radiation risk assessment in space is a mandatory step for the development of countermeasures and long-duration mission planning in human spaceflight. Research in radiobiology provides information about possible risks linked to radiation. In addition, for a meaningful risk evaluation, the radiation exposure has to be assessed to a sufficient level of accuracy. Consequently, both the radiation models predicting the risks and the measurements used to validate such models must have an equivalent precision. Corresponding measurements can be performed both with passive and active devices. The former is easier to handle, cheaper, lighter, and smaller but they measure neither the time dependence of the radiation environment nor some of the details useful for a comprehensive radiation risk assessment. Active detectors provide most of these details and have been extensively used in the International Space Station. To easily access such an amount of data, a single point access is becoming essential. This review presents an ongoing work on the development of a tool that allows obtaining information about all relevant measurements performed with active detectors providing reliable inputs for radiation model validation.

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Radiation Dosimetry and Detection

Seedhouse¹

2018

Space Radiation and Astronaut Safety

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Measurements of heavy-ion anisotropy and dose rates in the Russian section of the International Space Station with the Sileye-3/Alteino detector

Cited by 4 publications

References 29 publications

Radiation survey in the International Space Station

Radiation survey in the International Space Station

Radiation Measurements Performed with Active Detectors Relevant for Human Space Exploration

Radiation Dosimetry and Detection

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