Sensitivity Analysis of the Off-Normal Conditions of the SPIDER Accelerator
- Consorzio RFX, Euratom-ENEA Association, Corso Stati Uniti 4, 35127 Padova (Italy)
- Laboratori Nazionali di Legnaro-Istituto Nazionale di Fisica Nucleare (LNL-INFN), Viale dell'Universita 2, 35020 Legnaro (Italy)
In the context of the development of the 1 MV neutral beam injector for the ITER tokamak, the study on beam formation and acceleration has considerable importance. This effort includes the ion source and accelerator SPIDER (Source for Production of Ions of Deuterium Extracted from an Rf plasma) ion source, planned to be built in Padova, and designed to extract and accelerate a 355 A/m{sup 2} current of H{sup -}(or 285 A/m{sup 2} D{sup -}) up to 100 kV. Exhaustive simulations were already carried out during the accelerator optimization leading to the present design. However, as it is expected that the accelerator shall operate also in case of pre-programmed or undesired off-normal conditions, the investigation of a large set of off-normal scenarios is necessary. These analyses will also be useful for the evaluation of the real performances of the machine, and should help in interpreting experimental results, or in identifying dangerous operating conditions.The present contribution offers an overview of the results obtained during the investigation of these off-normal conditions, by means of different modeling tools and codes. The results, showed a good flexibility of the device in different operating conditions. Where the consequences of the abnormalities appeared to be problematic further analysis were addressed.
- OSTI ID:
- 21611706
- Journal Information:
- AIP Conference Proceedings, Vol. 1390, Issue 1; Conference: 2. international symposium on negative ions, beams and sources, Takayama City (Japan), 16-19 Nov 2010; Other Information: DOI: 10.1063/1.3637431; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ACCELERATION
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BEAM EXTRACTION
BEAM INJECTION HEATING
DESIGN
DEUTERIUM
DEUTERIUM IONS
HYDROGEN 1 MINUS BEAMS
HYDROGEN IONS 1 MINUS
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ITER TOKAMAK
NEUTRAL ATOM BEAM INJECTION
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SENSITIVITY ANALYSIS
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CHARGED PARTICLES
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