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Radiation Biology and Cellular Toxicology

Humans and animals are constantly exposed to radiation and chemical toxicants. How do they damage cells? How do cells protect themselves and repair damage? What are the health consequences of exposure? You will learn what and how we know and what we do not know.

Information for admitted students Autumn 2022

Congratulations! You have been admitted at Stockholm University and we hope that you will enjoy your studies with us.

In order to ensure that your studies begin as smoothly as possible we have compiled a short checklist for the beginning of the semester.

Follow the instructions on wether you have to reply to your offer or not.


Checklist for admitted students

  1. Activate your university account

    The first step in being able to register and gain access to all the university's IT services.

  2. Register at your department

    Registration can be done in different ways. Read the instructions from your department below.

  3. Read all the information on this page

    Here you will find what you need to know before your course or programme starts.


Your seat may be withdrawn if you do not register according to the instructions provided by your department.

Information from the department - courses

In order to get you off to a good start, we have gathered the important things you need to know here. Read through carefully and if you have any questions, please contact us.

It is your responsibility to ensure that you are registered on the correct course. If you do not register then your place can go to a reserve (see Registration). In good time before registration, you must check if you are eligible with conditions. If you have conditions you cannot register (see Eligible with conditions). If you do not want the place, however, it is important that you decline your place as soon as possible, so that someone else can get the chance to go the course (see Declining your place). See also below for information on studying with a disability and if you are placed as reserve.

Eligible with conditions

If you did not meet all the eligibility requirements for the course when you applied then you are eligible with conditions. It is stated in your acceptance letter from if you are eligible with conditions. In that case, you cannot register as the department must first assess your eligibility.

Check the requirements under "Eligibility" here on the course page. To qualify, all requirements must be met before the course starts.

As soon as you meet the requirements, send a message to our student office with the following information:

  • Subject line: Conditional admission
  • Your name
  • Which course(s) you are admitted to

If you have questions about your condition, you can contact our student office.

Read about eligibility


Our courses generally apply online registration. To be able to register online, your student account must be activated and any conditions assessed. In order to maintain your place on the course, you must register within the registration period.

Registration periods in autumn 2022:

  • Registration for all courses opens 8th August and closes one week before the course starts (temporarily closed 19th-29th August).
  • Traineeships, research traineeships and degree projects are open for registration throughout the semester (see more below).

If you have trouble registering, please contact our student office before the last registration day. Otherwise you will loose your place on the course.

Register online

Traineeship and research traineeship

If you submitted your work plan for traineeship or research traineeship, or your research idea for degree project, before the deadline and had it approved, you have been admitted to the course and can register, provided you meet any conditions (see "Eligible with conditions" above). If you  submitted your work plan / research idea after the deadline, you have been placed as reserve and will be admitted as soon as it has been approved. If you have not yet submitted your work plan / research idea, you can read more about this further down on this page under "More information / How to apply".

Studying with a disability

If you need special pedagogical support, you can apply for support measurs. You should apply as soon as possible after you have been admitted to take advantage of the best possible support.

Read how to apply for support

Once you have your Nais certificate, contact the study counsellor for a meeting where we will go through the recommended support measured. After the meeting, you should contact the course coordinators for the courses you will attend and inform them that you have been granted support, so that they can prepare well.

Declining your place

If you no longer want your place, it is important that you decline your place so that another applicant can get the place. Please note that you can only decline your place at before the registration period begins. After the course has opened for registration and three weeks after the course has started, you can decline in Ladok. Declining the place later than three weeks after the start of the course is counted as having dropped the course. If you drop the course you will not be able to apply for the course again.

Declining your place at

Reserve place

If you have been given a reserve place you may be admitted if someone declines their place. If there is cause for reserve admission then you will receive notice one to two weeks before the course starts. For traineeships, research traineeships and degre projects see more information above.

Read about reserve roll call

More information about your studies with us

On our website you will find more information about your studies with us.

Welcome activities

Stockholm University organises a series of welcome activities that stretch over a few weeks at the beginning of each semester. The programme is voluntary (attendance is optional) and includes Arrival Service at the airport and an Orientation Day, see more details about these events below.
Your department may also organise activities for welcoming international students. More information will be provided by your specific department. 

Find your way on campus

Stockholm University's main campus is in the Frescati area, north of the city centre. While most of our departments and offices are located here, there are also campus areas in other parts of the city.

Find your way on campus

Read more

New student

During your studies

Student unions

For new international students

Pre-departure information

New in Sweden

Warning signs, one for radiation and one for poison. A picture of a cell between the two signs.
Picture by Andrzej Wojcik

The course is an introduction to radiation biology and toxicology, with focus on cellular and molecular effects and health protection. It is based on lectures, laboratory work and tasks. You will gain theoretical as well as practical knowledge and learn how to carry out and interpret experiments with DNA damaging agents.

  • Course structure

    The course is both theoretical and practical. The topics will include:

    • Radiation physics and radiation chemistry, microdosimetry, dose concepts, medical use of radiation
    • Toxic substances, absorption, level of exposure, use of cytotoxic drugs (cytostatics) and other forms of cancer treatment within the clinic
    • Genome organization and function, endogenously and exogenously formed free radicals, DNA damage, DNA adducts, mutations, epigenetic effects, carcinogenesis and cell transformation, repair of DNA damage, mechanisms of cell death, Adverse Outcome Pathway concept (AOP)
    • Methods for measuring cytotoxicity, genotoxicity and mutations.
    • The importance of radiation quality for the biological effect.
    • Biological dosimetry, introduction to epidemiology, radiation accidents and their effects on health, risk perception. Protection issues against radiation and chemical substances, comparative risk assessment.


    Embedded in the course is a two-week European course also for PhD students and early career researchers financed by the project RadoNorm ( titled CELET: Cellular and genotoxic effects of high and low LET ionising radiation – introduction to radiation biology. You can read more about this part of the course under "More information" further down this page.

    Teaching format

    The course consists of lectures, laboratory exercises, group discussions, study visits, project work and seminars. Participation in laboratory exercises, group discussions, project work, seminars and group education associated with this is compulsory.

    Field exercises will include excursions to areas with naturally occurring ionizing radiation where measurements will be caried out and samples of radioactive minerals collected.

    Learning outcomes

    A list of the learning outcomes can be found in the syllabus. Please find the link to the syllabus on the right side of this page.


    Assessment of knowledge takes place through written and/or oral examination.


    Andrzej Wojcik (MBW)


    Tel: +46 8 16 1217

    Lovisa Lundholm (MBW)


    Tel: +46 8 4140

  • Schedule

    The schedule will be available no later than one month before the start of the course. We do not recommend print-outs as changes can occur. At the start of the course, your department will advise where you can find your schedule during the course.
  • Course literature

    Note that the course literature can be changed up to two months before the start of the course.

    • Eric J Hall, Amato J Giaccia: “Radiobiology for the Radiologist” 8th edition 2018. Wolters Kluwer Health. ISBN 9781975114152
    • Patricia Frank, M. Alice Ottoboni “The Dose Makes the Poison: A Plain-Language Guide to Toxicology” 3rd edition 2011, Wiley. ISBN: 9780470381120
  • More information

    CELET course

    Embedded in the course is a 2-week European course for PhD students and early career researchers financed by the project RadoNorm ( titled CELET: Cellular and genotoxic effects of high and low LET ionising radiation – introduction to radiation biology. The aim of CELET is to acquaint students with techniques of studying genotoxic effects of ionising radiation which are of relevance for radon and naturally occurring materials. The course contains both lectures and practical laboratory work. The lectures will focus on various aspects of biological effects of low and high LET ionising radiation as well as on techniques to detect them using cytogenetics and immunogenetics. The interaction of SU and foreign students during the course has been tested on several occasions during an earlier edition of the radiation biology course and has always been highly appreciated by the course participants.

  • Contact

    Student office
    Study counsellor for advanced level