ESQ focusing for an intense, high-brightness H<sup>&#x2212;</sup> beam: Emittance growth and its remedy


A simple, novel electrostatic quadrupole (ESQ) lens system has been developed to transport and focus an intense, high-brightness (normalized beam brightness ~10<sup>11</sup> A/m<sup>2</sup> rad<sup>2</sup>) H<sup>-</sup> beam. The physics of emittance growth in the ESQ transport system is studied in detail by computer simulation of beam dynamics, when the… (More)


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