名称:
                                A new method for enhancing the production of the negatively charged helium dimer He2−
                             
                            
                                摘要:
                                The production of the negatively charged helium dimer He-2(-) can be enhanced by nearly an order of magnitude by utilizing laser excited alkali metals as charge-exchange material for fast He-2(+) ions. The enhancement can be attributed to both steps in the charge-exchange reactions converting He-2(+) via He-2 (a(3) Sigma(u)(+)) to He-2(-) ((4) Pi(g)).
                             
                                                            
                                    DOI:
                                    10.1016/0009-2614(95)00669-u