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
The next irradiation campaign will take place between November 19 to December 7 2025.
-
Call for users for research activities via RADNEXT Transnational Access – CLOSED
-
Call for commercial, proprietary beamtime access – OPEN until July 20
For more information, please contact hearts.project@cern.ch.
