Thermal analysis of the TOF lead target at CERN
| dc.contributor.author | Aragonese, Cosimo | |
| dc.contributor.author | Buono, Stefano | |
| dc.contributor.author | Maciocco, Luca | |
| dc.contributor.author | Moreau, Vincent | |
| dc.contributor.author | Sorrentino, Luca | |
| dc.date.accessioned | 2014-05-28T07:10:00Z | |
| dc.date.available | 2014-05-28T07:10:00Z | |
| dc.date.issued | 2001-03-16 | |
| dc.description.abstract | The lead target at the Time Of Flight (TOF) facility at CERN, currently under commissioning, undergoes relevant temperature transients due to the intensity of the four 20 GeV/c pulses of 7 x 1012 protons, carrying an energy of 21.4 kJ delivered in 7 ns each. A 3D thermal analysis of the target system in both steady-state and transient conditions has been performed using the finite volume commercial code StarCD coupled with the results from Fluka simulations. Results show that the maximum temperature inside the lead target using the parameters of the TOF commissioning phase (4 pulses every 1.2 s in a 14.4 s super-cycle) is 127°C at steady-state operations, which is an acceptable value, compatible with safe and durable target operations. A significant improvement could be obtained by doubling the beam size (108°C maximum temperature in the bulk of the central block). The transients coming from the pulsed operation are not such as to create structural problems related to thermal fatigue. It is interesting to notice that the thermal oscillation in the hottest point in the bulk of the central block is much lower in the case where the 4 pulses are spaced of 3.6 s during the PS super-cycle (about 20°C), than in the case where they are spaced of only 1.2 s (about 40° C). | IT |
| dc.identifier.uri | http://hdl.handle.net/11050/959 | |
| dc.language.iso | en | IT |
| dc.subject | spallation target | IT |
| dc.subject | 3D thermal analysis | IT |
| dc.subject | time of flight (TOF) | IT |
| dc.subject.een-cordis | EEN CORDIS::ENERGIA::Fissione nucleare / fusione nucleare::Fissione nucleare / fusione nucleare | IT |
| dc.title | Thermal analysis of the TOF lead target at CERN | IT |
| dc.type | Report | IT |