ICRP @ICRP
Protecting you, animals, and the environment from the harmful effects of radiation since 1928. UK Registered Charity 1166304. linktr.ee/I.C.R.P London, England Joined June 2010-
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For 98 years, ICRP has brought together volunteer experts from around the world to advance radiological protection and protect people and the environment from the harmful effects of ionising radiation. Take a look back at 98 years of history and international collaboration.
Since 1928, our independent experts have developed recommendations that help protect people, animals, and the environment while enabling the beneficial uses of ionising radiation. You can celebrate with us by supporting us with a donation, if you're able. ow.ly/WFgj50ZtUMp
On World Biodiversity Day, we recognise that protecting people and the environment go hand in hand. Radiological protection plays an important role in safeguarding ecosystems for future generations. #ICRP #WorldBiodiversityDay #RadiologicalProtection
This week’s Dose of the Week highlights: Justification A core principle of radiological protection, ensuring every use of radiation delivers a net benefit to individuals or society. #DoseOfTheWeek #RadiologicalProtection #ICRP #Policy #RadiationSafety
On 16 March 2026, ICRP Scientific Secretary & CEO Christopher Clement received the Japan Foreign Minister’s Commendation from Ambassador Koji Yamanouchi at the Embassy in Ottawa. Read more about the ceremony and award here: ow.ly/O5zO50Yyc6v
Save the date! Join Task Group 111 on the 9th of April as they present factors governing the individual response of humans to ionising radiation. Click here for registration and more information: icrp.org/page.asp?id=709
The 22nd of March is World Water Day. Each year the United Nations assigns a theme to World Water Day. This year, the theme is "gender and water" which explores the intersection of water, gender, and sanitation. #WorldWaterDay #ICRP
In 2012, the United Nations General Assembly marked the 21st of March as the International Day of Forests. This day is for global observation and recognition of the importance of forests and the ecosystems they support. #InternationalDayofForests #IDF #ICRP
Radiation isn’t just something we create — some of it is always around us. This week’s Dose of the Week explores the idea of background radiation. #BackgroundRadiation #RadiationScience #ICRP #DoseOfTheWeek
Deputy Scientific Secretary Olga German is in #Vienna this week, updating member states on our work at the Meeting of the Commission on Safety Standards (CSS-59), advancing dialogue on international radiation safety standards.
Radioactive materials don’t just decay — the body also plays a role. This week’s Dose of the Week explores the idea behind biological half-life. #BiologicalHalfLife #RadiationScience #ICRP #DoseOfTheWeek
March 8 marks International Women’s Day. Today, ICRP celebrates the contributions of women around the world, especially in the field of radiological protection. We look forward to supporting the achievements of all of the incredible women at ICRP over the next year.
When radioactive material enters the body, exposure works a little differently. This week’s Dose of the Week looks at what we call internal dose. #InternalDose #Radiation #ScienceCommunication #DoseOfTheWeek
Join us on 19 March 2026 as members of ICRP Task Group 97 present Publication 159 on Radiological Protection in Surface and Near-Surface Disposal of Solid Radioactive Waste! Everything you need to know and register here: ow.ly/1c6650YkWtv
Radiation dose isn’t just about energy — it’s also about biological effect. This week’s Dose of the Week looks at the unit behind that idea: the sievert. #Sievert #RadiologicalProtection #DoseOfTheWeek #ICRP
February 15th is International Childhood Cancer Awareness Day. ICRP is dedicated to continuing to improve radiological protection to support individuals and families navigating childhood cancer diagnosis and treatment. #InternationalChildhoodCancerAwarenessDay
February 11th is International Day of Women and Girls in Science. ICRP is thankful to have such incredible female scientists who inspire us daily. We cannot wait to see what the future brings for women and girls in science. #InternationaldayofWomenandGirlsinScience
The gray is one of the most common units in radiation protection — and one many people mix up with others. This week’s Dose of the Week clears it up. #Gray #RadiationBasics #DoseOfTheWeek #ICRP
February 4th is #WorldCancerDay. ICRP recognizes the strength and resilience of those who have battled cancer. Through improving radiological protection ICRP is committed to supporting patients and their families through diagnosis and treatment. #WorldCancerDay
The becquerel shows up everywhere in radiation science, but it’s often misunderstood. This week’s Dose of the Week clears it up. #Becquerel #RadiationBasics #DoseOfTheWeek #ICRP
IAEA - International ... @iaeaorg
291K Followers 3K Following IAEA is the 🌍's centre for cooperation in the nuclear field, promoting the safe, secure & peaceful use of nuclear technology. IAEA DG @RafaelMGrossi
Operador Nuclear @OperadorNuclear
282K Followers 880 Following Alfredo García. Licencia Operador Reactor y Supervisor. Ingeniero Telecomunicaciones. Comunicación Audiovisual. Divulgador. Conferenciante. Consultor @IAEAorg
Rafael Mariano Grossi @rafaelmgrossi
97K Followers 1K Following Director General of the @IAEAorg International Atomic Energy Agency
Dr M. Mahesh (ಮಹ�... @mmahesh1
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Consejo de Seguridad ... @CSN_es
11K Followers 126 Following El CSN es el único organismo regulador en seguridad nuclear y protección radiológica en España sin competencias en política energética.
American Association ... @aapmHQ
13K Followers 6K Following Official Twitter account for the American Association of Physicists in Medicine (AAPM).
SEPR @SocEspPR
3K Followers 415 Following La Sociedad Española de Protección Radiológica (SEPR) es una asociación de carácter científico y técnico, sin ánimo de lucro. Fundada en 1980. Afiliada a IRPA.
SEFM @SEFM_redes
2K Followers 1K Following Sociedad Española de Física Médica. Desde 1974 por la calidad y seguridad de las aplicaciones médicas de la física. Ahora por los #FisicaMedica
Medical Physics 3.0 @MedPhys3_0
2K Followers 1K Following Medical Physics 3.0 (MP3.0) is an initiative to redefine, reinvigorate, and promote the practice of sustainable excellence in medical physics.
IAEA NS @IAEANS
8K Followers 156 Following Safety and security enable countries to enjoy the many benefits offered by nuclear and radiation technology.
IAEA NA @IAEANA
9K Followers 710 Following @iaeaorg's Nuclear Sciences and Applications: Securing a Better Future for all with Nuclear Techniques. [follows, RTs, likes ≠ endorsements]
World Nuclear News @W_Nuclear_News
73K Followers 558 Following The latest nuclear power information, free every day. WNN is supported by the @WorldNuclear Secretariat.
EURADOS European Radi... @eurados
484 Followers 124 Following We are a European network of over 80 institutions and over 300 scientists. We promote research, development and cooperation in ionizing radiation dosimetry.
EFOMP @EFOMP_org
3K Followers 401 Following Official Twitter acount of the European Federation of Organisations for Medical Physics (EFOMP). European Organisation for 37 National Medical Physics Societies
IOMP @IOMP_Official
4K Followers 65 Following The International Organization for Medical Physics (IOMP) represents over 30,000 medical physicists worldwide and 87 adhering national member organisations
Dr. Rebecca M. Howell... @DrRebeccaHowel1
4K Followers 2K Following Medical Physicist and Tenured Professor @UTMDAnderson | NIH-NCI R01 Funded PI | #medphys | #WeWhoCurrie | #radonc | #PENTEC | Tweets are my own
daneswellpaddy @daneswellpaddy
481 Followers 353 Following Medical Physicist , Past President of European Federation of Organisations for Medical Physics, EFOMP, Tweets and otherwise represent entirely personal views
IAEA NE @IAEANE
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Institute of Physics ... @ipemnews
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Women in Nuclear (WiN... @winspain
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Hüseyin Yöntem @tarihturko
498 Followers 5K Following Ecdat Tarih Yazmış Evlat Okumaktan Aciz (BİR TÜRK EVLADI)
Samuel Kusi @SKKusi73
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nabaz ahmmad saleem @nabazas
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Alfo @Flk3nMz3
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Sergio A da S Jordão @SergioASJordao
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Governo di Liberazion... @DiGoverno
247 Followers 1K Following Questo governo è nato dal fork del 31 maggio 2021. Sito: https://t.co/2sjOUQzeej
cheng cheng @chengcheng1zd2
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مدريد الروح @Tamamabdulmuez
1 Followers 74 Following
Bwambale Joward @JowardBk
3 Followers 45 Following
Waleed Alsaeed @walalsw
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A-Bear Consult @abearconsult
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hammad Zai @hammadZ40531915
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Lam K Dak🇸🇸 @Lam_K_Dak
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mohamed sobhi @mohamedsob3364
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Juanjo @Juanjo_jgd
21 Followers 302 Following
Kim Sunghwan @piximash_11
8 Followers 49 Following
ISoRED @ISoRED_Org
89 Followers 41 Following Discuss new results of studies of ionizing radiation effects in humans, epidemiology and dosimetry
Nükleer Düzenleme K... @TC_NDK
342 Followers 29 Following Nükleer Düzenleme Kurumu Resmî X Hesabı / Official Account of the Nuclear Regulatory Authority of Türkiye
Adeem Phys @AdeemP74004
4 Followers 121 Following
Meridieth Muchena @MeridiethMuchen
552 Followers 4K Following Agriculturalist. Opinions are personal. RT is not endorsement
Homo sapien @SrinivasanVaid3
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bye @JMaze29470
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Pranav Singh @2014INDIAPM
31 Followers 1K Following Passionate about connecting software, e‑governance, Blending interior automation, architectural design, and real‑estate finesse—all with a human touch.
Diana Ortegon @DianaOrteg62879
1 Followers 32 Following
Omar @OmarMedicalPhys
2 Followers 33 Following
Milton Estuardo Ixqui... @IxquiacMil84070
4 Followers 27 Following
L nm. @Lnm1919840
0 Followers 27 Following
YM Alkali AISLT @alkali305
28 Followers 479 Following Rabbi innee lima anzalta ilayya min khairin faqir|
luca trentin @leviathan_84
8 Followers 62 Following
nnaprim @nnaprim
30 Followers 358 Following M'agrada llegir, les fotos, i el mar. Tossuda de mena. Em dedico a la radioprotecció.
ishag boosh @Boush1981
0 Followers 92 Following
Tyler @Tyler_T92
801 Followers 3K Following @Shesakaiti 's Husband. Father. Roman Catholic. Cat collector. @WestLibertyU Alum. Independent. I tweet about the @Pirates a lot.
diver @DiverJie
3 Followers 117 Following
Daniel Deng Malok (Ph... @dengmalok
442 Followers 7K Following Digital Transformation, Telcoms, Cybersecurity, Strategy, Security Risk & Policy Analysis. T own personal views. RT not endorsement.
IAEA - International ... @iaeaorg
291K Followers 3K Following IAEA is the 🌍's centre for cooperation in the nuclear field, promoting the safe, secure & peaceful use of nuclear technology. IAEA DG @RafaelMGrossi
Rafael Mariano Grossi @rafaelmgrossi
97K Followers 1K Following Director General of the @IAEAorg International Atomic Energy Agency
Dr M. Mahesh (ಮಹ�... @mmahesh1
5K Followers 1K Following Prof of Radiology & Cardiology-Johns Hopkins Univ • Board Chair of American Association of Physicists in Medicine (AAPM) • Vice President of IOMP
Consejo de Seguridad ... @CSN_es
11K Followers 126 Following El CSN es el único organismo regulador en seguridad nuclear y protección radiológica en España sin competencias en política energética.
American Association ... @aapmHQ
13K Followers 6K Following Official Twitter account for the American Association of Physicists in Medicine (AAPM).
SEPR @SocEspPR
3K Followers 415 Following La Sociedad Española de Protección Radiológica (SEPR) es una asociación de carácter científico y técnico, sin ánimo de lucro. Fundada en 1980. Afiliada a IRPA.
SEFM @SEFM_redes
2K Followers 1K Following Sociedad Española de Física Médica. Desde 1974 por la calidad y seguridad de las aplicaciones médicas de la física. Ahora por los #FisicaMedica
IAEA NS @IAEANS
8K Followers 156 Following Safety and security enable countries to enjoy the many benefits offered by nuclear and radiation technology.
IAEA NA @IAEANA
9K Followers 710 Following @iaeaorg's Nuclear Sciences and Applications: Securing a Better Future for all with Nuclear Techniques. [follows, RTs, likes ≠ endorsements]
World Nuclear News @W_Nuclear_News
73K Followers 558 Following The latest nuclear power information, free every day. WNN is supported by the @WorldNuclear Secretariat.
EURADOS European Radi... @eurados
484 Followers 124 Following We are a European network of over 80 institutions and over 300 scientists. We promote research, development and cooperation in ionizing radiation dosimetry.
EFOMP @EFOMP_org
3K Followers 401 Following Official Twitter acount of the European Federation of Organisations for Medical Physics (EFOMP). European Organisation for 37 National Medical Physics Societies
IOMP @IOMP_Official
4K Followers 65 Following The International Organization for Medical Physics (IOMP) represents over 30,000 medical physicists worldwide and 87 adhering national member organisations
Physics World Medical... @PWMedPhys
6K Followers 470 Following Physics World Medical Physics brings you all the latest medical physics news.
IAEA NE @IAEANE
16K Followers 516 Following IAEA Dept. of NUCLEAR ENERGY: Safe, Secure, Sustainable Energy [follows, RTs, likes ≠ endorsements]
Institute of Physics ... @ipemnews
6K Followers 877 Following The Institute of Physics and Engineering in Medicine (IPEM): We are no longer posting on this channel please follow us on LinkedIn
Women in Nuclear (WiN... @winspain
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SRP UK @SRP_UK
1K Followers 440 Following Promoting the science and art of radiological protection and allied fields for the public benefit.
STUK - Säteilyturvak... @STUK_FI
24K Followers 330 Following Ajankohtaista säteily- ja ydinturvallisuudesta. | Strålsäkerhetscentralen | Radiation and Nuclear Safety Authority of Finland. https://t.co/YUYngszmhT
American Nuclear Soci... @ANS_org
49K Followers 3K Following The American #Nuclear Society is a not-for-profit dedicated to advancing the peaceful use of nuclear science and technology. 🇺🇸⚛️🌎
Prof. Pete Bryant @bryant_pete
183 Followers 443 Following CEO of the World Nuclear Transport Institute. Former President of @SRP_UK ⚛. Uni Professor & Sci Fi Fan. All views are my own! 🏳️🌈
NuScale Power @NuScale_Power
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Nuclear Institute @NuclearInst
5K Followers 571 Following Account inactive, follow us on Linkedin: https://t.co/nSmpLLBzSs The professional membership organisation dedicated to nuclear.
X-energy @xenergynuclear
23K Followers 2K Following We build advanced nuclear energy solutions that empower the unprecedented.
Women in Nuclear Glob... @WiNglobal
3K Followers 227 Following We are Women In Nuclear #WiNGlobal ⚛ Women from all over the world working professionally in various fields of nuclear energy ⚡ and radiation applications 👩🔬
Medical Physics for W... @medphyswb
3K Followers 2K Following A not-for-profit volunteer driven organization with the vision for a world with access to effective and safe applications of physics and technology in medicine.
Bruce Power NGS @Bruce_Power
9K Followers 1K Following We produce 30 per cent of Ontario's electricity, supplying clean, affordable, reliable power, and also produce cancer-fighting medical isotopes.
Nuclear Science Week @nuclearsciweek
3K Followers 855 Following An international, broadly observed week-long celebration to focus local, regional and international interest on all aspects of nuclear science.
Health Physics Societ... @hps_org
956 Followers 97 Following The Health Physics Society (HPS), formed in 1956, is a scientific organization of professionals who specialize in radiation protection.
RadoNorm @RadoNorm
218 Followers 53 Following Towards effective radiation protection based on improved scientific evidence and social considerations – focus on Radon and Norm
ARCAL URUGUAY @ArcalUruguay
298 Followers 299 Following Acuerdo regional de cooperación para la promoción de la ciencia y tecnología nucleares. Actividades de los proyectos de ARCAL en Uruguay.
CNWC - Canadian Nucle... @CVOUICNI
1K Followers 412 Following The Collective Voice of Unions in Canada's Nuclear Industries since 1993.
International Youth N... @IYNC
2K Followers 369 Following The International Youth Nuclear Congress (IYNC) brings together young professionals in nuclear from around the world. #Nuclear4Climate
European Association ... @EANM_NucMed
4K Followers 606 Following Largest non-profit organisation for nuclear medicine in Europe | Driving innovation, collaboration & education | See you at #EANM26 on Oct 17-21, 2026 in Vienna
Society for Radiation... @SRR_India
51 Followers 23 Following Official Twitter Acoount of Society for Radiation Research (SRR) India. Visit https://t.co/MKDxssZm0C for more details. Likes & RT are not endorsement.
Juan C. Ocampo Ramos,... @jcocampor
165 Followers 717 Following Clinical/research scientist working in diagnostics radiology, and nuclear medicine. Improving healthcare through radiological protection and dosimetry
Bundesamt für Strahl... @strahlenschutz
8K Followers 351 Following #Strahlenschutz geht alle an: Unter den Bundesbehörden sind wir die Expertin für alles, was strahlt. Wir forschen z. B. zu #Radon, #UV, #Mobilfunk, #Röntgen.
Women in Nuclear Chil... @winchile_
722 Followers 879 Following Red de mujeres en el área nuclear y de radiaciones ionizantes en Chile. #MujeresEnLoNuclear | ¿Te sumas? ➡️ https://t.co/Ba2eKGlRVl
Speed of Light - The ... @SpeedofLightFdn
4K Followers 912 Following Speed of Light - The ASTRO Foundation: accelerating bold and innovative ideas in radiation therapy to help every person live a longer, healthier life.
IPEM NMSIG @IPEM_NM_SIG
239 Followers 54 Following The Nuclear Medicine Special Interest Group for the Institute of Physics and Engineering in Medicine
AAPM Women's Professi... @AAPM_WPSC
1K Followers 1K Following We are the Women's Professional Subcommittee of the American Association of Physicists in Medicine, drawing attention to the important work of women physicists.
Duke Radiation Oncolo... @DukeRadOnc
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WashU Medicine Divisi... @WashUDPS
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ACROresident @ACROresident
4K Followers 1K Following The American College of Radiation Oncology (ACRO) Resident Committee provides mentorship, scholarship, and education to trainees in #Radonc.
SWRO @S_W_R_O
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European Congress of ... @ECMP2026
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Bundesumweltministeri... @_BMUKN
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ISGlobal @ISGLOBALorg
24K Followers 2K Following 🌍 ISGlobal - Barcelona Institute for Global Health | @iCERCA centre and member of @SOMM_alliance
Prakash Hande @manoorhande
92 Followers 55 Following Associate Professor, National Univ of Singapore, Singapore; tweets and responses are personal; PhD, MPH.
ChaplainDale @HolyCrossDale
94 Followers 125 Following Wife, mom and GMa. Proud fan of the Leafs, Valkyries, Hilltops, track coach and piano lover. Avid knitter. Humble disciple.
Bochud François @FrancBochud
49 Followers 72 Following I am a physicist working at Lausanne University Hospital. Opinions expressed here are mine alone. Re-tweets not an endorsement; just a sign of interest.
CANDU Owners Group @CANDUOwnersGrp
912 Followers 377 Following CANDU Owners Group is funded by #CANDU utilities worldwide for R&D, joint projects and information exchange to achieve #ExcellenceThroughCollaboration
Sama Bilbao y Leon @SamaBilbao
3K Followers 116 Following Director General of World Nuclear Association @worldnuclear
Emirates Nuclear @ENEC_UAE
40K Followers 148 Following نوفر 25% من كهرباء الإمارات وننتج 40 تيراواط سنويًا بدون انبعاثات 24/7 | Powering 25% of the UAE with 40 TWh of clean electricity annually, 24/7
ZONA RADIOLÓGICA® @ZRadiologica
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Purdue School of Heal... @PurdueHSCI
323 Followers 208 Following The Purdue University School of Health Sciences prepares graduates to succeed as tomorrow's health leaders, professionals, and researchers.
Bill Gates @BillGates
64.7M Followers 571 Following Sharing things I'm learning through my foundation work and other interests.
Princess Dina Mired @dinamired
91K Followers 2K Following Fierce enemy of cancer Past President UICC,Patron -SIOP ,Hon President of EORTC.All views expressed are my own & retweets are not endorsements unless I say so
SRP President @SRP_Pressie
740 Followers 732 Following Jennifer Humphries, (@jenkhumphries) President Society for Radiological Protection and RPA at @SellafieldLtd. Finalist, Top 50 Women in Engineering 2023.















