Speaker
Description
At the J-PARC Hadron facility, construction of the COMET project is underway to explore the muon-electron conversion process. An 8 GeV proton beam supplied from the main ring is irradiated to a target in a superconducting capture solenoid magnet, and the generated pions and muons are transported to the experimental area. Graphite material will be used as the target material in Phase 1 (proton beam intensity: 3.2 kW) and high-density materials such as tungsten material in Phase 2 (proton beam intensity: 56 kW). For the target design, cooling methods for the heat generated by proton beam irradiation, transport efficiency of secondary particles, and selection of target materials are being studied, because the COMET target, although the proton beam intensity is not so high, must be installed in a high magnetic field with a superconducting solenoid magnet so that the secondary particle transport path is not disturbed, It is difficult to distribute the heat generation density as in the rotating target system. In addition, the design of the structure must take into account the remote replacement of the activated target. In this presentation, we report on the design status of the COMET target.
| Themes for the contribution | 4 Target design, analysis, and validation of concepts: |
|---|
