Bringing you the best in radiation protection adviser services, training and information

Ionactive is an established provider of Radiation Protection Adviser (RPA) and Radioactive Waste Adviser (RWA) services for users of ionising radiation. Since 2002 we have provided radiation protection advice to industry, security, medical, emergency services, museums and universities. We run regular Radiation Protection Supervisor (RPS) training courses in the UK and overseas and provide on demand online radiation protection training courses.

Our services cover sealed and unsealed radioactive material - from HASS sources used in industrial irradiation, to low activity environmental tracers. We cover all types of radiation generator – from small x-ray sets used in research, to the largest accelerators used in medicine, industry and sterilisation.

Just browsing? Visit the resource hub for radiation safety guidance, FAQ, a glossary, our blog, curated radiation links and our guide to IRR17.

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Mark Ramsay

Mark started Ionactive Consulting as a hobby in 2002 which has grown to be a significant RPA service provider in the radiation protection industry. He is currently RPA for many organisations spanning all areas of industry, medicine, security and research in the UK and beyond. His varied experience in the nuclear, non-nuclear and medical industry together with an interest in novel training techniques are particularly strong assets. He aims to deliver a quality radiation protection adviser and RPS training service, whilst maintaining and continuously improving the Ionactive resource hub.

Download - Mark Ramsay - RPA - 2024 CV Linkedin - Mark's qualifications & experience


Well done on the course, I thought it worked very well and it's good to have something that you can pick up when you have time.

– (JD) online RPS training - January 2021 [Medical Delegate] -

Thanks Mark. Really good course given the dry subject :)

– NS - online RPS training course delegate - October 2020 -

Thank You for a well-executed course Monday and Tuesday. It was a pleasure to see how assertive you were by paying attention to ALL delegates at the same time and making the course content relevant for one and all. I’ve recommended it highly to our base managers as I see others within our organization that could benefit from it

– Claus Thorberg Hansen, RPS Training, July 2019 -

I was delighted that we achieved a satisfactory demonstration of our reactor emergency arrangements. The scenario was realistic, but testing. The quality of the exercise documentation produced by Ionactive was as usual first class.

– Simon Franklin, Imperial College London -

Came knowing very little about the subject, have left with all of the relevant knowledge I need

– BJ, RPS training delegate, March 2016 -

Mark, it's been great working with you over the last year, not only is our house in better order but the wider workforce genuinely appreciate the time you have spent reassuring them

– DF, X-ray Technology Company -

Main objective was to understand radioactive materials better and you have certainly fulfilled this for me. Excellent content and well delivered. Thank you.

– (AC) online RPS training - December 2020 [Transport Delegate] -

Radon Gas - a surprise! I work only with security x-ray systems but found the radioactive bits of the course interesting too. I will be talking to my colleagues about Radon Gas when next discussing our workplace risks!

– BQ, X-ray security, RPS Training (March 2018) -

Many thanks for an interesting two-day radiation course. Whilst physics and maths is not my thing, I found the material easy to digest and surprisingly enjoyable!

– OM, diagnostic x-ray, RPS Training (Dec 2017) -

Sincere thanks, Mark, for the energy, enthusiasm, and, excellent, training, given to my site teams, for two very different decommissioning projects. The assistance and guidance, provided, through RA requirements, and your pragmatic RPA technical support, for both challenging projects – fume filter plant decommissioning and overall site decontamination, was central to the complete success achieved, against reasonable expectations.

– Peter Williams – Project Manager -

Thanks Mark. Just wanted to say I really enjoyed the course, it was really well presented throughout and kept me engaged!

– (TD) online RPS training - December 2020 [Medical Delegate] -

Great course. Definitely took me 5 days not 2 though!! Mark always helpful and prompt when support required. Definitely recommend this course.

– (LP) online RPS training - December 2020 [Medical Delegate] -

I found material very well presented and helpful, legislation is bit dry but it is what it is. I enjoyed this course. It's definitely the best ever online course I have done.

– (ZB) online RPS training - January 2021 [Medical Delegate] -

I really enjoyed this course. It was very thorough and taught me lots of things that have not been in previous RPS courses that I have attended

– (JH) online RPS training - September 2021 [Research Delegate] -

Very good online environment. Well thought out structure to assist engagement and relatability. Will recommend to other colleagues. Thank you!

– (MP) online RPS training - September 2021 [Medical Delegate] -

Dear Ionactive Team, Thank you for an interesting and informative RPS course which I found both challenging and fun in equal measure - a rare combination indeed!

– (JB) online RPS training - September 2021 [Medical Delegate] -

Very easy to use, and incredibly interesting!

– (WDP) online RPS training - December 2021 [A-Level Student] -

Hi Mark, Absolutely excellent course. Content was very comprehensive and the presentation works very well.

– (PR) online RPS training - December 2021 [Industry Delegate] -

Cheers Mark, great course and definitely one I’ll be recommending

– (SJ) online RPS training - December 2022 [Industry Radiography Delegate] -

Really great course, user friendly & easy to navigate through modules when you want a refresher. I found the course content interesting and would recommend.

– (KW) online RPS training - July 2023 [Medical Radiographer Delegate] -

Thanks Mark. Very well organised and structured course.

– (RC) online RPS training - September 2023 [Museums / Research] -

Hi Mark Excellent course. Very informative. Kind Regards.

– (NL) online RPS training - September 2023 [Medical - NHS delegate] -

Absolutely well done course! Mark explains everything in a way that is both interactive and interesting. Really enjoyed and it's been probably one of the best online courses I've done! Mark also replied to questions very quickly and clearly

– (MA) online RPS training - September 2023 [NHS delegate] -

Course was excellent, content was perfect, the quizzes during the course cemented the learning in each area, being able to review each section and correct misconceptions before moving on, this gave me more confidence for sitting the final test, also being able to access the resource in the future is a bonus. Thank you Mark and team.

– GL online RPS training - March 2024 [Industry delegate] -