| 摘要 |
This invention provides a method for forming coherent clusters by expansion comprising: generating clusters and causing at least some of the clusters to become coherent by manipulating temperature and pressure conditions; exposing said clusters prior to about the time of creation of said clusters by expansion, to particles which cause said clusters to become charged, said exposing being done in a manner that does not destroy said clusters nor the coherence of said clusters. Also provided is an apparatus for forming coherent clusters comprising means for generating clusters and coherence inducing means for causing at least some of the clusters to be coherent. The resulting jet-like coherent cluster beam may be charged and directed into various targets. For example, although it is extremely difficult to construct a laser emitting in the x-ray region, for a coherent ion-cluster beam, there is no difficulty in increasing its energy per particle since it may be accelerated like any other charged particle in a linear acceleration.
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