| Autor: |
X. Xu, H.J. Shih, W.E. Schiesser, R.H. Carcagno, A. Yuecel |
| Rok vydání: |
1992 |
| Předmět: |
|
| Zdroj: |
Supercollider 4 ISBN: 9781461365297 |
| DOI: |
10.1007/978-1-4615-3454-9_109 |
| Popis: |
The dynamic interaction between the beam-gas scattering induced energy deposition and the SSC cryogenic system is studied by integrating a cryogenic system dynamic simulator with an adsorption model and a beam-gas scattering and energy deposition model. Simulation results are obtained for a 1 km long SSC arc section where the beam tube pressure in one of the dipoles is increased up to 150 times its nominal operating pressure. The beam-gas scattering induced heat loads arising from such high pressure perturbations can be very high locally but do not overload the cryogenic system. They are more likely to induce a magnet quench as they result in coil temperatures that largely exceed the desired operating limit. Simulations are also carried out for the case where a large external heat load of 1 W/m is imposed on the coldmass of a half-cell in the section. Results show that the coldmass temperatures rise significantly with the added heat load but the energy deposition in the coldmass due to beam-gas scattering remains low despite the increase in the beam tube temperature. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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