Particle beam injector system and method

A method for coupling a charged particle beam to a radio frequency quadrupole (RFQ), comprising:

• generating a first electric field across a particle beam deflector, wherein the deflector is located at the entrance of the RFQ, and the first electric field causes the charged particle beam to be delivered to the RFQ at an angle that is within an acceptance angle of the RFQ;
• and
• generating a second electric field for a predetermined duration, wherein the second electric field causes the charged particle beam to be deflected at an angle that is beyond the acceptance angle of the RFQ.

A device for coupling a charged particle beam to a radio frequency quadrupole (RFQ), comprising:

• a particle beam deflector configured to cause the charged particle beam to have a first trajectory that is beyond an acceptance angle of the RFQ when a first electric field is generated across the particle beam deflector, and to deflect the charged particle beam from the first trajectory to a second trajectory that is within the acceptance angle of the RFQ when a second electric field is generated across the particle beam deflector;
• and
• one or more voltage sources configured to supply voltages to the particle beam deflector for establishing the first and the second electric fields.

A device for coupling a charged particle beam to a radio frequency quadrupole (RFQ), comprising:

• a particle beam deflector configured to deliver the charged particle beam to the RFQ at an angle that is within an acceptance angle of the RFQ when a first electric field is generated across the particle beam deflector, and to deflect the charged particle beam at an angle that is beyond the acceptance angle of the RFQ when a second electric field is generated across the particle beam deflector;
• and
• one or more voltage sources configured to supply voltages to the particle beam deflector for establishing the first and the second electric fields.