http://www.cnr.it/ontology/cnr/individuo/prodotto/ID155547
Computation of first-order beam characteristics of the dogleg option for the RS design (Rapporti progetti di ricerca)
- Type
- Label
- Computation of first-order beam characteristics of the dogleg option for the RS design (Rapporti progetti di ricerca) (literal)
- Anno
- 2006-01-01T00:00:00+01:00 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Moro A., Bruschi A. (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni
- FINAL REPORT for Deliverable (a).2.1 EFDA Task TW5-TPHE-ECHULB1 \"Upper Launcher for ITER ECH&CD System\" FP 06/04 June 2006 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
- https://www.ifp.cnr.it/IFP/publications/2006/FP06-04.pdf (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
- FINAL REPORT for Deliverable (a).2.1 EFDA Task TW5-TPHE-ECHULB1 \"Upper Launcher for ITER ECH&CD System\"
FP 06/04 June 2006
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#supporto
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- IFP-CNR Milano, Italy (literal)
- Titolo
- Computation of first-order beam characteristics of the dogleg option for the RS design (literal)
- Abstract
- The task of this work, is to produce the beam parameters as a function of the steering
angle, in a form suitable for input to the beam tracing codes. The chosen option of RS
laucher in this case is the so-called Dogleg-option. In this work:
- The procedure is given to produce beam parameters for beam tracing input in
the latest configuration of the dogleg option for the ITER ECRH Remote
Steering Upper Launcher, as designed and developed by project team.
- Analysis is performed taking into account the correct dependence of the beam
parameters on the steering angle, which is responsible of the final output beam
characteristics in terms of resulting poloidal and toroidal angles (?, ?), and in
terms of beam widths and orientation of the resulting astigmatic beam with
respect to the tokamak reference system.
- Only simple astigmatic beam are considered in this first order approximation,
the general astigmatic beams theory not being the goal of this task.
- First order approximation thus is a useful and fast tool for a preliminary study
of design performances, even if it doesn't give a complete and exhaustive
description of the resulting beams.
For the evaluation a detailed model with a complete geometrical description of the
optics layout of the RS launcher has been implemented in Mathematica® code.
As a result of the analysis, beams are found strongly astigmatic and elongated in a
direction close to the poloidal one. More precisely beam spot axes are found to be
oriented at angle ? with respect to a reference horizontal plane whose value
depends on the input steering angle (-22.8°<-17° for the upper row and -29.1°<
? <-22.3° for the lower row respectively).
Both astigmatism and orientation of spot symmetry axes have been embodied in
the beam tables, being these parameters essential for the correct beam tracing and
deposition width evaluation in the plasma. (literal)
- Prodotto di
- Autore CNR
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