Future Projects: The Next Five Years
Suppression of collective effects (multipactor, “electron cloud”) in high current positive charge structures (for the International Linear Collider project):
- grooved chambers, ion-bombardment effects
- accurate angular data for simulations
- secondary electron suppressing coatings
Rf gun metal photocathodes (for the Linac Coherent Light Source project):
- quantum efficiency improvement
- in-situ atomic-H re-cleaning
Polarized GaAs photocathodes (for the International Linear Collider project):
- in-situ atomic-H cleaning
- cathode transport passivation
- design of loadlock for ILC polarized e-gun
High electric field breakdown (for general accelerator projects):
- identify potential subsurface emitters
- qualify resistant materials and processes
- surface physics of Nb for ILC structures
