HEARTS@CERN


Facility information


The HEARTS@CERN facility during the November 2024 run. (Image: CERN)

The HEARTS@CERN facility during the November 2024 run. (Image: CERN)


General facility parameters


Typical value Extra information
Ion species 208Pb
Beam flux
102 – 105 ions/cm2/spill
Spill timing 1s length and repeating every ~10s
Beam delivery Static beam position
Beam size Square beam with side 25, 50 or 75mm The beam is re-sized with collimators.
Uniformity 10 – 20% Depends on the collimator choice.
LET range
12.3 – 36.3 MeV·cm2/mg
Degraders PMMA Density: 1.19 g/cm3

Typical beam properties


Extraction energy
[MeV/u]
Degrader set
[mm]
Energy at DUT [MeV/u] LET in Si
[MeV·cm2/mg]
Range in Si
[mm]
1000 908 (10) 12.3 (0.1) 50.0
500 387 (10) 16.5 (0.1) 14.5
500 13.0
(10+2+1)
210 (12) 22.2 (0.5) 6.0
500 16.5
(10+4+2+0.5)
153 (14) 26.6 (1.1) 3.5
500 18.5
(10+8+0.5)
113 (14) 31.7 (2.2) 2.3
500 19.5
(10+8+1+0.5)
88 (16) 36.3 (3.3) 1.5

(Energy and LET values in parenthesis are FWHM spread values. Energy and LET values were obtained by FLUKA.CERN simulations, Range values were obtained with SRIM.)


Next expected availability


  • November 2025 via RADNEXT Transnational Access
    • Note that the related RADNEXT proposals would need to be submitted during the next RADNEXT TA call in May 2025
  • Commercial access for the November 2025 campaign is also expected to be possible – more information will follow

Further information


The HEARTS project is funded by the European Union under Grant Agreement No. 101082402, through the Space Work Programme of the European Commission.

Funded by the European Union. Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or European Commission. Neither the European Union nor the granting authority can be held responsible for them.