BDF – Target and Target Complex

The BDF target and target complex is a serious challenge.

  • Beam power 355 kW, 1 s spill up to 2.56 MW
  • Target must be as dense as possible to maximize production and reduce backgrounds
  • High energy deposition per unit volume – significant heating due to beam (320 kW)
  • Need of a challenging water cooling system ~200 m3/h, 20 bar Material damage due to cumulated radiation

The proposed target is:

  • 120 cm long, hybrid configuration
  • 60 cm TZM (4 lamda) + 60 cm W (6 lamda), Ta cladded
  • 40 x 40 cm2 transversal size
  • Target core in a double walled SS container
  • Radiation damage effect on mechanical properties

The complex houses the target which is located 15 meters underground. A cast-iron hadron absorber encloses production target (460 m3).

For more details see Marco Calviani's presentation at the kickoff workshop.

The proposed work going forward is a natural continuation of the CDR study documented in EDMS 1465053 (SHiP-TP-2015-A4). The basic aim is to validate the technical choices proposed in the technical proposal and possibly study alternative scenarios.

Proposed activites:

  1. Analysis of the assembly, configuration and fabricability of the cladded refractory metal blocks
  2. Material irradiation R&D
  3. Feasibility of water-cooled cast iron blocks with embedded SS pipes
  4. Feasibility of the target water cooling system and pre-design validation + ventilation system
  5. Study of a He-cooled target
  6. Integration studies for target complex + transport/handling study
  7. R&D for fully metal, high flow rate and pressure-compatible water plugin
  8. R&D for He-vessel circulation and prototyping activities