ULTRACLEAN RADIOISOTOPE MARKING BY NUCLEAR STIMULATED DESORPTION

被引：2

作者：

KELSON, I

NIR, D

ZIDON, A

DUMONT, H

PERRAILLON, B

HAUSTEIN, P

机构：

[1] CENS,F-91191 GIF SUR YVETTE,FRANCE

[2] BROOKHAVEN NATL LAB,DEPT CHEM,UPTON,NY 11973

来源：

JOURNAL OF APPLIED PHYSICS | 1991年 / 69卷 / 03期

关键词：

D O I：

10.1063/1.347295

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A method for ultraclean radioactive marking is presented, utilizing the process of nuclear stimulated desorption. It employs a sequence of two slow radioactive decays. The primary decay causes a nucleus to desorb from a substrate onto which it had been placed. The desorbing daughter nuclei, being themselves radioactive, then constitute an ultraclean marking flux. A manifestation of this mechanism for the special case of the Ca-47 --> Sc-47 --> Ti-47 decay is described. An application to end-point detection in wet etching is presented and quantitatively simulated.

引用

页码：1147 / 1150

页数：4