초록 ▼

A process for selectively neutralizing H-ions in a magnetic field to produce an intense negative hydrogen ion beam with spin polarized protons. Characteristic features of the process include providing a multi-ampere beam of H-ions that are intersected by a beam of laser light. Photodetachment is eff

A process for selectively neutralizing H-ions in a magnetic field to produce an intense negative hydrogen ion beam with spin polarized protons. Characteristic features of the process include providing a multi-ampere beam of H-ions that are intersected by a beam of laser light. Photodetachment is effected in a uniform magnetic field that is provided around the beam of H-ions to spin polarize the H-ions and produce first and second populations or groups of ions, having their respective proton spin aligned either with the magnetic field or opposite to it. The intersecting beam of laser light is directed to selectively neutralize a majority of the ions in only one population, or given spin polarized group of H-ions, without neutralizing the ions in the other group thereby forming a population of H-ions each of which has its proton spin down, and a second group or population of Ho atoms having proton spin up. Finally, the two groups of ions are separated from each other by magnetically bending the group of H-ions away from the group of neutralized ions, thereby to form an intense H-ion beam that is directed toward a predetermined objective.

대표청구항 ▼

A process for selective neutralization of H-ions in a magnetic field to produce an intense negative hydrogen ion beam with spin polarized protons, comprising the steps of: providing a multi-ampere beam of H-ions; providing a beam of laser light, any photon of which has sufficient energy to photodeta

A process for selective neutralization of H-ions in a magnetic field to produce an intense negative hydrogen ion beam with spin polarized protons, comprising the steps of: providing a multi-ampere beam of H-ions; providing a beam of laser light, any photon of which has sufficient energy to photodetach one electron from any one of the H-ions; providing a uniform solenoidal magnetic field around a portion of the length of said beam of H-ions to effectively spin polarize the H-ions in said beam, thereby to produce a first group of ions with proton spin aligned with said magnetic field and to produce a second group of ions with proton spin opposed to said magnetic field; directing said beam of laser light through the spin polarized beam of H-ions to selectively neutralize the majority of the ions in one of said groups, without neutralizing the ions in the other group; separating said one group of ions from said other group of ions, and directing said other group of ions in an intense H-ion beam toward a predetermined objective.