| Autor: |
D. L. Damcott, Gary S. Was, V. Rotberg, J. M. Cookson |
| Rok vydání: |
1995 |
| Předmět: |
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| Zdroj: |
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 99:780-783 |
| ISSN: |
0168-583X |
| DOI: |
10.1016/0168-583x(94)00618-0 |
| Popis: |
A facility has been established at the Michigan Ion Beam Laboratory for the study of radiation effects on materials. The capabilities include a broad range of materials (metals, ceramics and polymers), radiation damage rates (10−8 to 10−3 dpa/s) and irradiation temperatures (−196°C to 600°C). The key to the utility of this facility is the control of irradiation dose, dose uniformity, and sample temperature during irradiation. Temperature stability is maintained by simultaneous heating and cooling of the sample stage, and use of a liquid metal interface (for metal samples). The temperature of individual samples in the irradiated area is measured via an infrared pyrometer and thermocouples. Temperature uniformity is confirmed by the pyrometer, while dose uniformity is provided by a split aperture. A total of eight input channels transmit temperature and beam current signals to a 486DX computer to provide feedback to the operator and to record the irradiation history at a frequency of 1 point per second. Continuous irradiations lasting up to 120 hours have been successfully conducted. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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