Determination of effective charges of negative ions by reference to the lifetime of positronsThe Sommerfeld-Welker model of a hydrogen atom in a spherical, impenetrable force cavity is used to calculate the basic properties of positronium in an ionic crystal. The basic properties of positronium ...
Negatively charged ions may help people feel more at ease and promote good health, which explains the popularity of things such as negative ion generators and other gadgets. Likewise, the sense of well-being many people feel after a rainstorm is believed by some to be caused by the high conc...
By using positive ray analysis he was able to correlate different ionisation potentials with the production of ions of different ratio of mass to charge. I have now used the same apparatus to study the ionisation of argon, chiefly to explain, if possible, the ``blue'' spectrum of this ...
We have investigated multielectron capture processes in collisions of Ar9+ on Ar by measuring the resulting Auger electrons in coincidence with charge-stat... Peart,Dolder,K.T 被引量: 7发表: 1973年 Polarisation of the third harmonic generated by the pump field caused by collisions of electrons...
Alkali-metal negative ions. IV. Multichannel calculations of K- photodetachment The results of ab initio calculations of photodetachment of K- are presented and compared with experimental measurements. The energy region studied is from... KT Taylor,DW Norcross - 《Physical Review A》 被引量: 2...
If the negative-ion densities are large enough, they could play an important part in physical processes such as radiative transfer or charge exchange.doi:10.1038/349393a0NatureChaizy, P., et al. (1991), Negative ions in the coma of comet Halley, Nature, 349, 393-396....
Helium negative ions were produced from He+ by a two-step process in which He(1s2s)3S1 was first produced by a nearly resonant charge transfer and then He- was produced by capture of a 2p electron. Both collisions were with cesium atoms. The maximum yield of He- was 1.2% of the inci...
Atoms are found joined together in independent particles called "molecules," as ions formed by the gain or loss of electrons from the atoms and as free atoms. Ions are held together in compounds by the attraction between the positive and the negative charges of cations and anions. 展开 ...
The Effect of Negative Ions on Double Space-charge Sheaths?The fields in plane double space-charge sheaths can be computed in the presence of any number of negative and positive ions much as in the case of a single component positive ion-electron sheath.doi:10.1080/00207216708937977...
Device cannot project the produce small ion at distance with speed Misunderstanding the life cycle of a small air ion Failure to hold the experimental subjects at ground potential, so that their surfaces developed high electrostatic charges and repelled approaching air ions. ...