Name: PSI Winter School for Proton Therapy 2026
Start: 2026-01-18T18:00:00+01:00
End: 2026-01-23T17:30:00+01:00
Location: Paul Scherrer Institute

PSI Winter School for Proton Therapy 2026

from Sunday 18 January 2026 (18:00) to Friday 23 January 2026 (17:30)

Monday 12 January 2026
Tuesday 13 January 2026
Wednesday 14 January 2026
Thursday 15 January 2026
Friday 16 January 2026
Saturday 17 January 2026
Sunday 18 January 2026

18:00 Enjoy the finger food and drinks
Enjoy the finger food and drinks
18:00 - 21:00

Registration
Registration
18:00 - 20:00
Dry run if requested.

20:00 Time at your convenience - you may enjoy the thermal baths
Time at your convenience - you may enjoy the thermal baths
20:00 - 22:00

Monday 19 January 2026

08:30 Departure to Paul Scherrer Institute - Meeting point in front of the Parkhotel
Departure to Paul Scherrer Institute - Meeting point in front of the Parkhotel
08:30 - 09:00
09:00 Welcome (Introduction of faculty, logistics etc.) - Damien Charles Weber (Paul Scherrer Institut)
Welcome (Introduction of faculty, logistics etc.)
- Damien Charles Weber (Paul Scherrer Institut)
09:00 - 09:15
09:15 A short historical overview of proton therapy - Damien Charles Weber (Paul Scherrer Institut)
A short historical overview of proton therapy
- Damien Charles Weber (Paul Scherrer Institut)
09:15 - 09:45
09:45 Basic physics for proton radiation - Sairos Safai (PSI - Paul Scherrer Institut)
Basic physics for proton radiation
- Sairos Safai (PSI - Paul Scherrer Institut)
09:45 - 10:15
10:15 Coffee break

10:15 - 10:45
10:45 Basic radiaton biology of photons and protons - Martin Pruschy (University Hospital Zurich)
Basic radiaton biology of photons and protons
- Martin Pruschy (University Hospital Zurich)
10:45 - 11:15
11:15 How significant are RBE variations in proton therapy? - Harald Paganetti (Massachusetts General Hospital / Harvard Medical School)
How significant are RBE variations in proton therapy?
- Harald Paganetti (Massachusetts General Hospital / Harvard Medical School)
11:15 - 11:45
11:45 Outcome analysis - theory & modelling - Harald Paganetti (Massachusetts General Hospital / Harvard Medical School)
Outcome analysis - theory & modelling
- Harald Paganetti (Massachusetts General Hospital / Harvard Medical School)
11:45 - 12:15
12:15 Lunch break
Lunch break
12:15 - 13:30
Room: Auditorium
13:30 Toxicity Clinical - Esther Troost
Toxicity Clinical
- Esther Troost
13:30 - 14:00
14:00 Toxicity: Clinical impact of proton RBE - Dirk Wagenaar
Toxicity: Clinical impact of proton RBE
- Dirk Wagenaar
14:00 - 14:30
14:30 Second malignancies - Uwe Schneider
Second malignancies
- Uwe Schneider
14:30 - 15:00
15:00 Coffee break
Coffee break
15:00 - 15:30
Room: Auditorium
15:30 Validation methodologies for the clinical benefit of proton therapy - Johannes Langendijk (University Medical Center Groningen)
Validation methodologies for the clinical benefit of proton therapy
- Johannes Langendijk (University Medical Center Groningen)
15:30 - 16:15
16:15 Treatment planning for pencil beam scanning and IMPT - Antony John Lomax (PSI - Paul Scherrer Institut)
Treatment planning for pencil beam scanning and IMPT
- Antony John Lomax (PSI - Paul Scherrer Institut)
16:15 - 17:00
17:00 Group picture
Group picture
17:00 - 17:05

17:05 Meeting point PSI West outside the auditorium
Meeting point PSI West outside the auditorium
17:05 - 17:20
Room: Auditorium

17:20 On the way to Parkhotel
On the way to Parkhotel
17:20 - 17:50

17:50 Time at your convenience
Time at your convenience
17:50 - 18:30

18:30 Dinner at Parkhotel
Dinner at Parkhotel
18:30 - 20:00

20:00 Time at your convenience - you may enjoy the thermal baths
Time at your convenience - you may enjoy the thermal baths
20:00 - 22:30
Tuesday 20 January 2026

08:30 Departure to Paul Scherrer Institute - Meeting point in front of the Parkhotel
Departure to Paul Scherrer Institute - Meeting point in front of the Parkhotel
08:30 - 09:00
09:00 Physicians block
09:00 - 12:30
Contributions

09:00 Tumors of the skull base and spine chordoma and chondrosarcoma - Dominic Leiser (PSI - Paul Scherrer Institut)

09:30 Proton therapy for adult CNS tumors - Damien Charles Weber (Paul Scherrer Institut)

10:00 Head and neck cancers - Johannes Langendijk (University Medical Center Groningen)

11:00 Reirradiation - Piero Fossati (EBG MedAustron GmbH)

11:30 Liver PT - Piero Fossati (EBG MedAustron GmbH)

12:00 Breast - Stéphanie Peeters
Physics block
09:00 - 12:30
Contributions

09:00 Active scanning beam 1: Modulation delivery - David Meer (PSI - Paul Scherrer Institut)

09:30 Active scanning beam 2: Controlling delivery - Christian Michael Groh (PSI - Paul Scherrer Institut)

10:00 Active scanning beam 3: Checking delivery/dosimetry - Michele Togno (PSI - Paul Scherrer Institut)

11:00 Advanced physics - Sairos Safai (PSI - Paul Scherrer Institut)

11:45 Accelerators and beam production techniques for proton therapy - David Meer (PSI - Paul Scherrer Institut)
12:30 Lunch break
Lunch break
12:30 - 13:30
Room: Auditorium
13:30 Physicians block
13:30 - 16:15
Contributions

13:30 Proton beam therapy of NSCLC – best practice - Esther Troost

14:15 Financial Toxicity - Barbara Bachtiary (Dr. med.)

15:15 Proton therapy for pediatrics and AYA patients (part 1) - Anita Mahajan (Mayo Clinic)

15:45 Proton therapy for pediatrics and AYA patients (part 2) - Anita Mahajan (Mayo Clinic)
Physics block
13:30 - 16:15
Contributions

13:30 Technological innovation: From Eye to AI: Advances in Proton Therapy - Zoltan Perko

14:15 Technological innovation part 1: Delivery - Konrad Pawel Nesteruk (Massachusetts General Hospital / Harvard Medical School)

15:15 Gantry PT workflow - Michelle van Heerden

15:45 Ocular PT - Jan Hrbacek (PSI - Paul Scherrer Institut)
16:15 Departure to social event - Meeting point PSI West outside the auditorium
Departure to social event - Meeting point PSI West outside the auditorium
16:15 - 16:30
Room: Auditorium

16:30 On the way to the social event
On the way to the social event
16:30 - 17:15

17:15 Bowling
Bowling
17:15 - 19:15
Room: Bowling area

19:15 Dinner
Dinner
19:15 - 22:00
Room: Riveralp

22:00 Back to Parkhotel Bad Zurzach
Back to Parkhotel Bad Zurzach
22:00 - 22:30
Wednesday 21 January 2026

08:30 Departure to Paul Scherrer Institute - Meeting point in front of the Parkhotel
Departure to Paul Scherrer Institute - Meeting point in front of the Parkhotel
08:30 - 09:00
09:00 Commissioning a new facility: Specifications - Alejandro Mazal (Centro de Protonterapia Quironsalud)
Commissioning a new facility: Specifications
- Alejandro Mazal (Centro de Protonterapia Quironsalud)
09:00 - 09:30
09:30 Commissioning a new facility: Clinical - Arturs Meijers (PSI)
Commissioning a new facility: Clinical
- Arturs Meijers (PSI)
09:30 - 10:00
10:00 Coffee break and group allocation
Coffee break and group allocation
10:00 - 10:30
Room: Auditorium

10:30 On the way to the workshop
On the way to the workshop
10:30 - 10:45
Room: Auditorium
10:45 Workshop 1 to 4 in parallel - Nicola Bizzocchi (PSI - Paul Scherrer Institut) Arturs Meijers (PSI) Alexey Cherchik
Workshop 1 to 4 in parallel
- Nicola Bizzocchi (PSI - Paul Scherrer Institut)
- Arturs Meijers (PSI)
- Alexey Cherchik
10:45 - 11:45
11:45 Change workshop session
Change workshop session
11:45 - 11:50
Room: Auditorium
11:50 Workshop 1 to 4 in parallel - Alessandra Bolsi (PSI - Paul Scherrer Institut) Michele Togno (PSI - Paul Scherrer Institut)
Workshop 1 to 4 in parallel
- Alessandra Bolsi (PSI - Paul Scherrer Institut)
- Michele Togno (PSI - Paul Scherrer Institut)
11:50 - 12:50
12:50 On the way for lunch
On the way for lunch
12:50 - 13:00
Room: Auditorium

13:00 Lunch break
Lunch break
13:00 - 14:00
Room: Auditorium

14:00 On the way to the workshop
On the way to the workshop
14:00 - 14:15
Room: Auditorium
14:15 Workshop 1 to 4 in parallel - Antony John Lomax (PSI - Paul Scherrer Institut)
Workshop 1 to 4 in parallel
- Antony John Lomax (PSI - Paul Scherrer Institut)
14:15 - 15:15
15:15 Change workshop session
Change workshop session
15:15 - 15:20
Room: Auditorium
15:20 Workshop 1 to 4 in parallel - David Meer (PSI - Paul Scherrer Institut) Christian Michael Groh (PSI - Paul Scherrer Institut)
Workshop 1 to 4 in parallel
- David Meer (PSI - Paul Scherrer Institut)
- Christian Michael Groh (PSI - Paul Scherrer Institut)
15:20 - 16:20
16:20 Coffee break
Coffee break
16:20 - 16:50

16:50 Site tour - Optional
Site tour - Optional
16:50 - 18:10
Room: Center for Proton Therapy

17:00 on the way to Parkhotel for those not attending the site tour
on the way to Parkhotel for those not attending the site tour
17:00 - 17:20
Room: Auditorium

18:10 On the way back to meeting point outside the Auditorium
On the way back to meeting point outside the Auditorium
18:10 - 18:25
Room: Auditorium

18:25 On the way to Parkhotel
On the way to Parkhotel
18:25 - 19:00

19:00 Dinner at Parkhotel
Dinner at Parkhotel
19:00 - 20:00
Thursday 22 January 2026

08:30 Departure to Paul Scherrer Institute - Meeting point in front of the Parkhotel
Departure to Paul Scherrer Institute - Meeting point in front of the Parkhotel
08:30 - 09:00
09:00 Uncertainties in PT - Francesca Albertini (PSI - Paul Scherrer Institut)
Uncertainties in PT
- Francesca Albertini (PSI - Paul Scherrer Institut)
09:00 - 09:30
09:30 Motion / motion mitigation - Ilaria Rinaldi
Motion / motion mitigation
- Ilaria Rinaldi
09:30 - 10:00
10:00 Rationale and implemenattion of online adaptive - Francesca Albertini (PSI - Paul Scherrer Institut)
Rationale and implemenattion of online adaptive
- Francesca Albertini (PSI - Paul Scherrer Institut)
10:00 - 10:30
10:30 Coffee-Break
Coffee-Break
10:30 - 11:00
Room: Auditorium
11:00 Technological innovation: Imaging - Giovanni Fattori (PSI - Paul Scherrer Institut)
Technological innovation: Imaging
- Giovanni Fattori (PSI - Paul Scherrer Institut)
11:00 - 11:30
11:30 Technological Innovation: Treatment planning - Jan Hrbacek (PSI - Paul Scherrer Institut)
Technological Innovation: Treatment planning
- Jan Hrbacek (PSI - Paul Scherrer Institut)
11:30 - 12:00
12:00 Lunch break
Lunch break
12:00 - 13:00
Room: Auditorium
13:00 Technological Innovation: Flash:: BIOLOGY - Marie-Catherine Vozenin
Technological Innovation: Flash:: BIOLOGY
- Marie-Catherine Vozenin
13:00 - 13:30
13:30 Technological Innovation: Flash:: PHYSICS - Robert Schäfer
Technological Innovation: Flash:: PHYSICS
- Robert Schäfer
13:30 - 14:00
14:00 Technological innovation: Spatially fractionated minibeams therapy - Cristian Fernandez (University of Bern)
Technological innovation: Spatially fractionated minibeams therapy
- Cristian Fernandez (University of Bern)
14:00 - 14:30
14:30 Coffee break
Coffee break
14:30 - 15:00
Room: Auditorium
15:00 Protons versus "the competition" - Antony John Lomax (PSI - Paul Scherrer Institut)
Protons versus "the competition"
- Antony John Lomax (PSI - Paul Scherrer Institut)
15:00 - 15:30
15:30 Closing Remarks - Antony John Lomax (PSI - Paul Scherrer Institut) Damien Charles Weber (PSI - Paul Scherrer Institut)
Closing Remarks
- Antony John Lomax (PSI - Paul Scherrer Institut)
- Damien Charles Weber (PSI - Paul Scherrer Institut)
15:30 - 15:45
15:45 Departure to the hotel - Meeting point PSI West outside the Auditorium
Departure to the hotel - Meeting point PSI West outside the Auditorium
15:45 - 16:00
Room: Auditorium

16:00 On the way to Parkhotel
On the way to Parkhotel
16:00 - 16:30

16:30 Time at your convenience - you may enjoy the thermal baths
Time at your convenience - you may enjoy the thermal baths
16:30 - 18:30

18:30 Dinner at Parkhotel
Dinner at Parkhotel
18:30 - 19:30

19:30 Time at your convenience - you may enjoy the thermal baths
Time at your convenience - you may enjoy the thermal baths
19:30 - 22:00
Friday 23 January 2026

07:30 Skiing day - Optional
Skiing day - Optional
07:30 - 17:30
Room: https://www.flumserberg.ch/en/Experience-winter

Tour within Paul Scherrer Institute - Optional

07:30 - 13:00
Room: Auditorium

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