Ion Accelerator - HVEM Link
The simulation of radiation damage has primarily been accomplished by either ion accelerators or high voltage electron microscopes. Recently a 200 kV gas source ion accelerator (Kaman Nuclear Model A-1001) modified to accept a Granville Phillips precision leak valve (Model 203) has been attached to...
| Published in: | Proceedings, annual meeting, Electron Microscopy Society of America |
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| Main Authors: | , , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Cambridge University Press (CUP)
1977
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1017/s0424820100078109 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0424820100078109 |
| Summary: | The simulation of radiation damage has primarily been accomplished by either ion accelerators or high voltage electron microscopes. Recently a 200 kV gas source ion accelerator (Kaman Nuclear Model A-1001) modified to accept a Granville Phillips precision leak valve (Model 203) has been attached to a 500 kV TEM for simulation of the fusion reactor environment by Simultaneous Accelerator Microscope Irradiation (SAMI) conditions. 1,2 While accelerators have been linked to TEM columns before, those cases are for 100 kV and 200kV microscopes and hence displacement damage from the electrons is limited. 3,4 The arrangement of the accelerator and microscope is schematically shown in Figure 1. A drift tube 4' long links the microscope column to the ion accelerator. The 8 mm gap between pole pieces of the objective lens permits easy access of the ion beam to the specimen through a side entry port at 90° to the entry port of the specimen. |
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