TSL - The Svedberg Laboratory

The TSL is a university facility, based in Uppsala, Sweden.

Gustaf Werner cyclotron

The Gustaf Werner cyclotron at TSL provides particle beams for:



Radiation testing: Beamtime can be used for commercial neutron and proton irradiation projects. Read more about our irradiation facilities.

Basic Research

Basic research: There are some time for basic (academic) research and in this case the experiments should be associated to Uppsala University or to EU projects. Read more about basic (academic) research at TSL.

Proton patient

Proton therapy: Until June 2015 the main activity of TSL was based on an agreement between Uppsala Academic Hospital and Uppsala University about proton therapy, read more about proton therapy at TSL.

TSL logo

This week

Protons and neutrons for industry (B- and D-line)

Long Term Schedule


2nd half of year 2015

1st half of year 2015

Apply for beamtime

Notice board


The Svedberg by the cyclotron

Due to the decision of Uppsala University to end operation of the lab, there will a symposium on November 27, 2015, giving highlights of the scientific activities at TSL.

Here is a program for the Symposium.

(updated: 2015-10-29)


Proton therapy at TSL has come to an end.

Börje Larsson and The Svedberg
Börje Larsson and The Svedberg, GWI, 1954

The first patient was irradiated on 23 November 1957.

The last patient was irradiated on Friday 12 Juni 2015.

The proton therapy will continue at the new Skandion clinic, also in Uppsala.

(updated: 2015-06-15)


CUP - close user position

A new irradiation position, CUP (Close User Position) has been constructed, characterized, and put into operation at the ANITA facility for accelerated testing of components and systems for single event effects. The energy-integrated neutron flux above 10 MeV, amounting to more than 107 cm-2 · s-1, is the highest among the facilities with atmospheric-like spectra. Results of beam characterization measurements are reported in the recent publication:

A.V. Prokofiev, E. Passoth, A. Hjalmarsson and M. Majerle, ”CUP – A New High-Flux Irradiation Position at the ANITA Neutron Facility at TSL”, IEEE Transactions on Nuclear Science, Vol. 61, pp 1929-1936 (2014).

(updated: 2014-11-13)


Looking for old updates and outdated news? Check in this link: Old Notice Board News