Cryogenic setup for MJ class laser targets
| Autor: | E Kostrov, E. I. Demikhov, N. Borisenko, L. N. Latysheva, A. S. Rybakov, Nikolai Sobolevsky, V. S. Litvin |
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| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Cryostat Materials science Liquid helium Nuclear engineering Thermal resistance Refrigerator car Cryocooler Condensed Matter Physics Laser 01 natural sciences Atomic and Molecular Physics and Optics law.invention Micrometre law 0103 physical sciences Tube (fluid conveyance) Electrical and Electronic Engineering 010306 general physics |
| Zdroj: | Laser and Particle Beams. 37:25-29 |
| ISSN: | 1469-803X 0263-0346 |
| DOI: | 10.1017/s0263034619000077 |
| Popis: | The cryogenic system for maintaining a target at a constant temperature in the range 5–25 K after shutting off the pulse tube (PT) cryogenic refrigerator is developed and tested. The temperature stability at the sample is ±2 mK for at least 20 hours. The cryogenic setup consists of cryostat, PT cryocooler, liquid helium vessel, helium gas supply, thermo-radiation shield, thermal resistance. The system provides 0.25 W of cooling power at the target. The appropriate thermal resistance should be used for different temperatures. The designed operation mode is 3 minutes off and 15 minutes on. The deactivation of PT cryocooler allows to achieve the target position stability of 1 micrometer or less during the X-ray characterization. The effect of neutron-shield was estimated using Monte-Carlo simulation. |
| Databáze: | OpenAIRE |
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