http://www.cnr.it/ontology/cnr/individuo/prodotto/ID109860
Design and specifications of the diagnostics for the instrumented calorimeter of SPIDER (Abstract/Poster in atti di convegno)
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- Label
- Design and specifications of the diagnostics for the instrumented calorimeter of SPIDER (Abstract/Poster in atti di convegno) (literal)
- Anno
- 2011-01-01T00:00:00+01:00 (literal)
- Alternative label
De Muri M.; Dalla Palma M.; Fasolo D.; Pasqualotto R.; Pomaro N.; Rizzolo A.; Serianni G.; Tollin M. (2011)
Design and specifications of the diagnostics for the instrumented calorimeter of SPIDER
in 14th International Conference on Ion Sources (ICIS11), Giardini Naxos, Messina, September 12 - 16, 2011
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- De Muri M.; Dalla Palma M.; Fasolo D.; Pasqualotto R.; Pomaro N.; Rizzolo A.; Serianni G.; Tollin M. (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni
- PM 11; Proc. to be published in Review on Scientific Instruments. This work was set up in collaboration and financial support of F4E. (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
- http://icis11.lns.infn.it/BoA.pdf (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
- http://icis11.lns.infn.it/BoA.pdf PM11 (literal)
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- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- 1 Consorzio RFX, Euratom-ENEA association, Corso Stati Uniti 4, 35127 Padova, Italy;
2 Dipartimento di Ingegneria Elettrica, Padova University, Via Gradenigo, 6/A - 35131 Padova, Italy.
(M.De Muri 1,2, M.Dalla Palma 1, D.Fasolo 1, R.Pasqualotto 1, N. Pomaro 1, A.Rizzolo 1, G. Serianni 1, M. Tollin 1) (literal)
- Titolo
- Design and specifications of the diagnostics for the instrumented calorimeter of SPIDER (literal)
- Abstract
- Operation of the thermonuclear fusion experiment ITER requires additional heating via injection
of neutral beams from accelerated negative ions. In the SPIDER test facility, under construction in
Padova, the production of negative ions will be studied and optimised. This test bed will aim at
assessing beam characteristics and verifying the source proper operation.
STRIKE (Short-Time Retractable Instrumented Kalorimeter Experiment) is a diagnostic used to
characterise the SPIDER beam during short operation (several seconds) to verify if the beam meets
the ITER requirement about the maximum allowed beam non-uniformity (below ±10%). During
long pulse operations, STRIKE is parked off-beam in the vacuum vessel. The most important
measurements performed by STRIKE are beam uniformity, beamlet divergence and stripping
losses.
This contribution gives an overview of the diagnostics dedicated to these measurements: thermal
cameras to measure the temperature pattern on the rear side of the tiles; current sensors to measure
the current associated to the beam particles; thermocouples, giving a local temperature
measurement, to provide a calibration for thermal cameras; electrostatic sensors to characterise the
plasma formed by the interaction of the beam with the background gas. In order to prevent
secondary electrons from escaping the tile surface, a voltage is applied to the tiles with respect to
the vacuum vessel.
The specifications of these diagnostics have been defined according to the results of electrostatic
and thermal simulations.
A failure modes and effects analysis has been performed during the design. Consequently the
project of the STRIKE diagnostics has been optimized to reduce the possible failure risks.
This work was set up in collaboration and financial support of F4E. (literal)
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