#radiationprotection — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #radiationprotection, aggregated by home.social.
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What underpins global radiation risk assessments?
The UNSCEAR 2024 report provides a valuable overview of the scientific data sources used to estimate radiation exposure worldwide. Particularly interesting for professionals working in radiation protection, environmental assessment, and dosimetry.
🔗 https://www.unscear.org/unscear/en/publications/2024_2.html
#RadiationProtection #UNSCEAR #Science #PublicHealth #Dosimetry
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When is dose assessment necessary—and how should it be expressed?
Clarity in quantities and units is essential for meaningful radiation protection.
Page 10 of this UNSCEAR report is a concise and useful reference:
https://www.unscear.org/unscear/en/publications/2024_2.html -
In 1986, I was 9 and only vaguely aware of Chernobyl.
Now, working in radiation, I recognise how deeply that event shaped scientific priorities, public perception, and professional paths.
A reminder of the long shadow of major technological events.
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Accurate public radiation exposure assessment remains a key challenge across disciplines. The 2024 UNSCEAR report offers updated methodologies and useful insights for professionals working in radiation protection and environmental assessment.
📊 Page 9 is a good entry point:
https://www.unscear.org/unscear/en/publications/2024_2.html -
Sometimes such flares ☀️ are accompanied by outbursts of high-energy radiation ☢️ particles, which can travel near the speed of light and would easily penetrate space vehicle shielding 🛡️. High energy #radiation particles can be a cause of malfunctions in computers and electronics, and they also pose #health risks for #astronauts 🧑🚀 https://www.surrey.ac.uk/news/solar-flare-prompts-close-monitoring-space-weather-ahead-artemis-ii-launch
#RadiationProtection #HumanSpaceflight #SpaceWeather #Artemis #NASA
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The 2024 UNSCEAR report (Annex B, Vol. II) outlines key priorities shaping radiation protection 📘
Pages 5–6 offer a concise overview relevant for research, policy, and practice.
Worth a read:
https://www.unscear.org/unscear/en/publications/2024_2.html -
☀️ 30 March 2026 The eruption came from a magnetically complex #sunspot group now rotating further into Earth's view — meaning any continued activity could have more direct impacts ☢️ on Earth and #Artemis 2 https://www.space.com/astronomy/sun/powerful-x-class-solar-flare-triggers-radio-blackout-ahead-of-artemis-2-launch
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☀️ 30 March 2026 The eruption came from a magnetically complex #sunspot group now rotating further into Earth's view — meaning any continued activity could have more direct impacts ☢️ on Earth and #Artemis 2 https://www.space.com/astronomy/sun/powerful-x-class-solar-flare-triggers-radio-blackout-ahead-of-artemis-2-launch
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☀️ 30 March 2026 The eruption came from a magnetically complex #sunspot group now rotating further into Earth's view — meaning any continued activity could have more direct impacts ☢️ on Earth and #Artemis 2 https://www.space.com/astronomy/sun/powerful-x-class-solar-flare-triggers-radio-blackout-ahead-of-artemis-2-launch
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☀️ 30 March 2026 The eruption came from a magnetically complex #sunspot group now rotating further into Earth's view — meaning any continued activity could have more direct impacts ☢️ on Earth and #Artemis 2 https://www.space.com/astronomy/sun/powerful-x-class-solar-flare-triggers-radio-blackout-ahead-of-artemis-2-launch
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☀️ 30 March 2026 The eruption came from a magnetically complex #sunspot group now rotating further into Earth's view — meaning any continued activity could have more direct impacts ☢️ on Earth and #Artemis 2 https://www.space.com/astronomy/sun/powerful-x-class-solar-flare-triggers-radio-blackout-ahead-of-artemis-2-launch
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Mañana organizamos un evento online sobre radón: medición, análisis y aplicaciones prácticas.
Sesión abierta con posibilidad de preguntas en directo.
Interesante para quienes trabajan en salud ambiental, edificación o PRL.Más info 👇
https://www.linkedin.com/events/7437145429160538114?viewAsMember=true -
The first evaluation of public exposure to radiation dates back to 1958.
Decades later, this foundational work still informs how we assess risks such as radon and protect public health.
A good example of how long-term science shapes policy and practice.
📄 https://www.unscear.org/unscear/en/publications/2024_2.html
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#NASA says the #Artemis II crew can ... move equipment 🛍️ around within the capsule to effectively thicken its walls in the direction from which the #SolarStorm is coming
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The UNSCEAR 2024 Scientific Report (Vol. II) has been published.
An essential resource on public exposure to ionizing radiation, including radon’s contribution. I’ll share key insights over the coming weeks.
https://www.unscear.org/unscear/uploads/documents/unscear-reports/UNSCEAR_2024_Report_Vol.II.pdf
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Los niveles de radón pueden variar varios órdenes de magnitud en periodos muy cortos.
Esto hace que las mediciones en continuo sean especialmente útiles para entender su comportamiento y mejorar el control del radón en interiores.
Más información sobre el monitor continuo SPIRIT:
https://radonova.es/producto/instrumento-de-medida-de-radon-spirit/ -
Canada is often highlighted as a strong example of national radon testing efforts.
Yet the Cross-Canada Radon Survey shows that some regions have still never been tested — illustrating why continued measurement remains essential for understanding exposure risks.
More details on page 63:
https://buff.ly/2g0YjDe -
Physical shielding 🛡️, such as metals can block many types of #radiation ☢️ before it affects the #electronics http://marspedia.org/Hardened_electronics
Although #aluminum was not found to be as effective as other materials, it can still be helpful in reducing radiation doses https://phys.org/news/2022-06-shielding-surface-mars.html
Composite materials and composite #plastic offer 1.9 times the dose reduction compared to aluminum as well as high mechanical strength https://www.sciencedirect.com/science/article/pii/S2214552420300377
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The risks with #SpaceRadiation ☢️ are assigned the highest priority among all risks associated with #SpaceTravel. Active shielding 🛡️ methods, which use #electromagnetic fields to deflect charged particles, can make #DeepSpace 🌌 travel safer and more feasible. Placing the passive shielding before the active shielding is more effective than placing the identical active shielding before the passive shielding of the same thickness https://www.sciencedirect.com/science/article/pii/S2214552423000391
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The risks with #SpaceRadiation ☢️ are assigned the highest priority among all risks associated with #SpaceTravel. Active shielding 🛡️ methods, which use #electromagnetic fields to deflect charged particles, can make #DeepSpace 🌌 travel safer and more feasible. Placing the passive shielding before the active shielding is more effective than placing the identical active shielding before the passive shielding of the same thickness https://www.sciencedirect.com/science/article/pii/S2214552423000391
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The risks with #SpaceRadiation ☢️ are assigned the highest priority among all risks associated with #SpaceTravel. Active shielding 🛡️ methods, which use #electromagnetic fields to deflect charged particles, can make #DeepSpace 🌌 travel safer and more feasible. Placing the passive shielding before the active shielding is more effective than placing the identical active shielding before the passive shielding of the same thickness https://www.sciencedirect.com/science/article/pii/S2214552423000391
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The risks with #SpaceRadiation ☢️ are assigned the highest priority among all risks associated with #SpaceTravel. Active shielding 🛡️ methods, which use #electromagnetic fields to deflect charged particles, can make #DeepSpace 🌌 travel safer and more feasible. Placing the passive shielding before the active shielding is more effective than placing the identical active shielding before the passive shielding of the same thickness https://www.sciencedirect.com/science/article/pii/S2214552423000391
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The risks with #SpaceRadiation ☢️ are assigned the highest priority among all risks associated with #SpaceTravel. Active shielding 🛡️ methods, which use #electromagnetic fields to deflect charged particles, can make #DeepSpace 🌌 travel safer and more feasible. Placing the passive shielding before the active shielding is more effective than placing the identical active shielding before the passive shielding of the same thickness https://www.sciencedirect.com/science/article/pii/S2214552423000391
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#HERA consists of three #radiation ☢️ sensors installed in areas of #Orion that are shielded from radiation to varying degrees. In a high-energy radiation event, such as a #solar flare, the #astronauts would move to a more shielded part of Orion, opening the floor hatches and then installing #shielding 🛡️ material over their heads as additional protection https://www.dlr.de/en/latest/news/2024/orion-spacecraft-radiation-protection-tested-initial-findings-from-artemis-i-moon-mission
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🏢 High radon levels at work? Many workers worry: How long have I been exposed? ⏳
Retrospective assessments help answer this question, offering insights into past exposure and potential risks.
📖 Learn more in Annex 5: 🔗 https://buff.ly/46LuCMU
#RadonRegulations #WorkplaceSafety #EUCompliance #RadiationProtection #HealthAndSafety
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Earth remains under the influence of a waning high-speed #SolarWind ☀️ stream. No Earth-directed coronal mass ejections (#CMEs) were observed over the past 24 hours. Earth’s #geomagnetic field 🌐 was unsettled to active over the past day. https://earthsky.org/sun/sun-news-activity-solar-flare-cme-aurora-updates
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#Astronauts 👨🚀 travelling to #Mars would encounter #radiation ☢️ levels higher than humans have ever experienced, and be exposed to them for much longer.
To protect them, the #spacecraft would either have to be much bulkier, making launches expensive and difficult, or be made of more efficient #shielding 🛡️ materials. https://www.skyatnightmagazine.com/space-missions/how-will-humans-survive-the-journey-to-mars
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Discover the latest full issue flipbook of Radioprotection. Published by EDP Sciences & la Société Française de Radioprotection, it unveils the newest academic insights in the discipline.
📖 Read more 🔗 https://bit.ly/42JrMYD#OpenAccess #ScientificPublishing #RadiationProtection #NuclearSafety #ScientificPublishing #ScienceMastodon
@ScienceScholar
@academia
@academicsunite @academicchatter
@ScienceAdm -
Traditional shielding strategies aim to reduce #astronaut radiation ☢️ exposure by increasing vehicle mass, but this is ineffective for the extremely penetrating #galactic cosmic rays. #Astronauts will face radiation hazards resulting from solar ☀️ activity that can create solar energetic particles. Active shielding 🛡️ approaches are likely a required component of any realistic solution (#electrostatic shielding) https://www.sciencedirect.com/science/article/abs/pii/S0969806X22000494
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#Radiation ☢️ shielding is a mandatory element in the design of an integrated solution to mitigate the effects of radiation during long #DeepSpace voyages for human exploration. #Kevlar has radiation shielding 🛡️ performances comparable to Polyethylene, reaching a dose rate reduction of 32 ± 2% and a dose equivalent rate reduction of 55 ± 4% (for a shield of 10 g/cm2). https://www.nature.com/articles/s41598-017-01707-2
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#ESA is contributing three key elements to the #Gateway: Lunar #IHab*, #LunarView and #LunarLink. Together, these provide a habitable space for astronauts 👨🚀, refuelling, storage and telecommunication capabilities, and windows to view space 🌌 and the Moon 🌙. https://www.esa.int/Science_Exploration/Human_and_Robotic_Exploration/Exploration/Gateway
* Habitable volume: 10 m3, Launch mass: 10 tonnes https://www.esa.int/Science_Exploration/Human_and_Robotic_Exploration/Gateway_Lunar_I-Hab
#HumanSpaceflightHealth #RadiationProtection #Artemis #LunarGateway
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"How #NASA will protect #astronauts from #SpaceRadiation". Spoiler alert : #luggage 🧳 https://www.youtube.com/watch?v=vpNa4u997xA
#HumanSpaceflightHealth #RadiationProtection #Artemis #LunarGateway
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#Geomagnetic storms can cause electron density to increase 📈. Measurements show long electron lifetimes (i.e., longer than 100 days) in the inner belt. Energy-dependent electron lifetimes of roughly five to 20 days are found in the outer belt https://en.wikipedia.org/wiki/Van_Allen_radiation_belt#Research
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On #Earth, 2.4 mSv is normal. Above 100 mSv, cancer is likely. People on the #ISS face levels of 200 mSv, and #interplanetary levels of #radiation ☢️ are around 600 mSv. Researchers speculate that travel to #Mars 🔴 could involve a 30% risk of #cancer.
#Metals, including #lead and #aluminum, would make poor shields 🛡️ in #DeepSpace https://www.medicalnewstoday.com/articles/308764 -
🇳🇬 #Nigeria 📆 August 2023 Technical Infrastructure for a Self-Sufficient and Sustainable #Intergalactic Hub 👨🎓 master's thesis. The importance of #robots 🤖, a completely closed-loop #recycling ♻️ system, and novel #RadiationShielding ☢️🛡️ https://phys.org/news/2023-11-space-station-sunearth-l2.html
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Geophysical Research Letters 📆 02 August 2023 On 📆 28 October 2021, #solar ☀️ eruptions were observed by #spacecraft 🛰️ around #Earth, #Moon, and #Mars, which caused #solar energetic particle ☢️ ground level enhancement (#GLE) on the surface of three #planetary 🪐 bodies. #SEP events can induce much higher (∼100 times) #radiation ☢️ doses on the Moon 🌙 than on Mars 🔴 https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2023GL103069
#HumanSpaceflightHealth #RadiationProtection
Picture : Dosimeter measuring radiation https://commons.wikimedia.org/wiki/File:Dosimeter_measuring_radiation_in_the_Chernobyl_Exclusion_Zone.jpg
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☢️ #RadiationProtection : Scientists 👨🔬 warned that the #risk of a devastating #SolarStorm ☀️ is #increasing as we approach the next “solar maximum” – a peak 📈 in the #Sun's https://youtu.be/HJfy8acFaOg 11-year activity cycle. https://www.independent.co.uk/space/nasa-ai-solar-storms-warning-b2338835.html
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@EUSPA how about #HumanSpaceflightHealth at the #LunarGateway, why is a #radiation ☢️ #shelter missing ?
Picture : #ESA #CrewHealthManagement, #RadiationProtection, #AdvancedLifeSupport ? https://www.esa.int/ESA_Multimedia/Images/2023/04/Technology_areas_for_space_exploration
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#ESA 📆 26/08/2022 in 📆 August 1972, a series of powerful solar 🔆 storms took place in the middle of #NASA’s #Apollo 16 and 17 #Moon missions. It is thought the #radiation dose delivered would have caused acute radiation #poisoning 🤢. For an #astronaut on a spacewalk, it could be #lethal ☠️ https://www.esa.int/Space_Safety/Space_weather/Protecting_Artemis_and_lunar_explorers_from_space_radiation
#NASA #Orion #radiation protection plan 🗒️ "astronauts will position themselves in the central part of the crew module and #create a #shelter using the stowage bags 🛍️ on board. The crew would in some cases need to stay inside for as long as 24 hours ⌛." https://www.nasa.gov/feature/scientists-and-engineers-evaluate-orion-radiation-protection-plan
Reminds me of #MarieCurie : The damaging effects of #ionising #radiation were not known at the time of her work, which had been carried out without the #safety #measures later developed. https://en.wikipedia.org/wiki/Marie_Curie#Death
#Spacecraft #shielding 🛡️ https://en.wikipedia.org/wiki/Health_threat_from_cosmic_rays#Spacecraft_shielding
#HumanSpaceflightHealth #RadiationProtection #Artemis #LunarGateway
Picture : https://commons.wikimedia.org/wiki/File:Logo_iso_radiation.svg
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#Forbes 📆 Jun 23, 2022 Former deputy #NASA administrator Lori #Garver :
"NASA could play a larger role in driving technologies needed for human #spaceflight in #DeepSpace. People don’t talk about human #survivability in these environments. https://www.forbes.com/sites/brucedorminey/2022/06/23/new-book-paints-bleak-picture-of-nasas-human-spaceflight-program
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#Forbes 📆 Jun 23, 2022 Former deputy #NASA administrator Lori #Garver :
"NASA could play a larger role in driving technologies needed for human #spaceflight in #DeepSpace. People don’t talk about human #survivability in these environments. https://www.forbes.com/sites/brucedorminey/2022/06/23/new-book-paints-bleak-picture-of-nasas-human-spaceflight-program
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#Forbes 📆 Jun 23, 2022 Former deputy #NASA administrator Lori #Garver :
"NASA could play a larger role in driving technologies needed for human #spaceflight in #DeepSpace. People don’t talk about human #survivability in these environments. https://www.forbes.com/sites/brucedorminey/2022/06/23/new-book-paints-bleak-picture-of-nasas-human-spaceflight-program
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#Forbes 📆 Jun 23, 2022 Former deputy #NASA administrator Lori #Garver :
"NASA could play a larger role in driving technologies needed for human #spaceflight in #DeepSpace. People don’t talk about human #survivability in these environments. https://www.forbes.com/sites/brucedorminey/2022/06/23/new-book-paints-bleak-picture-of-nasas-human-spaceflight-program
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#Forbes 📆 Jun 23, 2022 Former deputy #NASA administrator Lori #Garver :
"NASA could play a larger role in driving technologies needed for human #spaceflight in #DeepSpace. People don’t talk about human #survivability in these environments. https://www.forbes.com/sites/brucedorminey/2022/06/23/new-book-paints-bleak-picture-of-nasas-human-spaceflight-program