Characterization of the SPIDER Cs oven prototype in the CAesium Test Stand for the ITER HNB negative ion sources

Andrea Rizzolo; Marco Barbisan; Luisa Bizzotto; Roberto Capobianco; Michela De Muri; Michele Fadone; Raffaele Ghiraldelli; Sophie Gorno; Bruno Laterza; Giuseppe Marchiori; Diego Marcuzzi; Luisa Migliorato; Federico Molon; Diego Ravarotto; Roberto Rizzieri; Federico Rossetto; Emanuele Sartori; Gianluigi Serianni; Pierluigi Veltri

doi:10.1016/j.fusengdes.2019.01.053

Characterization of the SPIDER Cs oven prototype in the CAesium Test Stand for the ITER HNB negative ion sources

Andrea Rizzolo, Marco Barbisan, Luisa Bizzotto, Roberto Capobianco, Michela De Muri, Michele Fadone, Raffaele Ghiraldelli, Sophie Gorno, Bruno Laterza, Giuseppe Marchiori, Diego Marcuzzi, Luisa Migliorato, Federico Molon, Diego Ravarotto, Roberto Rizzieri, Federico Rossetto, Emanuele Sartori, Gianluigi Serianni, Pierluigi Veltri

Advanced Tokamak Physics

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

The ITER Heating Neutral Beam (HNB) injector is required to deliver 16.7 MW of power to the plasma from a neutralized beam of H⁻/D⁻ negative ions, produced by an RF source and accelerated up to 1 MeV. To enhance the H⁻/D⁻ production, Cs will be routinely evaporated in the source by means of specific ovens embedded in the source, to reduce its work function. Controlling and monitoring the evaporation rate of Cs inside the source will be fundamental to achieve the desired performance for the ITER HNB. The prototype RF negative ion source SPIDER has been developed and built in the Neutral Beam Test Facility at Consorzio RFX. In SPIDER, liquid Cs based ovens will be used to inject Cs vapors inside the source. The CAesium Test Stand (CATS) has been specifically designed and set up for testing, commissioning, and characterizing Cs ovens in vacuum, but also to study the Cs evaporation and deposition onto surfaces. A SPIDER Cs oven prototype has been manufactured and tested in CATS in order to characterize its thermal behavior, by means of thermocouples and thermal camera, and its Cs flux, by means of Surface Ionization Detectors and Laser Absorption Spectroscopy.

Original language	English
Pages (from-to)	676-679
Number of pages	4
Journal	Fusion Engineering and Design
Volume	146
DOIs	https://doi.org/10.1016/j.fusengdes.2019.01.053
State	Published - Sep 2019

Funding

The work leading to this publication has been partially funded by Fusion for Energy. This publication reflects the views only of the authors, and F4E cannot be held responsible for any use which may be made of the information contained therein. The views and opinions expressed herein do not necessarily reflect those of the ITER organization. The authors thank M. Fr?schle of the Max Planck Institute for Plasma Physics - IPP for the fruitful discussion and collaboration.

Keywords

Caesium
LAS
NBI
SID
Test bed

Access to Document

10.1016/j.fusengdes.2019.01.053

Cite this

Rizzolo, A., Barbisan, M., Bizzotto, L., Capobianco, R., De Muri, M., Fadone, M., Ghiraldelli, R., Gorno, S., Laterza, B., Marchiori, G., Marcuzzi, D., Migliorato, L., Molon, F., Ravarotto, D., Rizzieri, R., Rossetto, F., Sartori, E., Serianni, G., & Veltri, P. (2019). Characterization of the SPIDER Cs oven prototype in the CAesium Test Stand for the ITER HNB negative ion sources. Fusion Engineering and Design, 146, 676-679. https://doi.org/10.1016/j.fusengdes.2019.01.053

@article{90f034d13a5e4190bf08b25dda333b5f,

title = "Characterization of the SPIDER Cs oven prototype in the CAesium Test Stand for the ITER HNB negative ion sources",

abstract = "The ITER Heating Neutral Beam (HNB) injector is required to deliver 16.7 MW of power to the plasma from a neutralized beam of H−/D− negative ions, produced by an RF source and accelerated up to 1 MeV. To enhance the H−/D− production, Cs will be routinely evaporated in the source by means of specific ovens embedded in the source, to reduce its work function. Controlling and monitoring the evaporation rate of Cs inside the source will be fundamental to achieve the desired performance for the ITER HNB. The prototype RF negative ion source SPIDER has been developed and built in the Neutral Beam Test Facility at Consorzio RFX. In SPIDER, liquid Cs based ovens will be used to inject Cs vapors inside the source. The CAesium Test Stand (CATS) has been specifically designed and set up for testing, commissioning, and characterizing Cs ovens in vacuum, but also to study the Cs evaporation and deposition onto surfaces. A SPIDER Cs oven prototype has been manufactured and tested in CATS in order to characterize its thermal behavior, by means of thermocouples and thermal camera, and its Cs flux, by means of Surface Ionization Detectors and Laser Absorption Spectroscopy.",

keywords = "Caesium, LAS, NBI, SID, Test bed",

author = "Andrea Rizzolo and Marco Barbisan and Luisa Bizzotto and Roberto Capobianco and \{De Muri\}, Michela and Michele Fadone and Raffaele Ghiraldelli and Sophie Gorno and Bruno Laterza and Giuseppe Marchiori and Diego Marcuzzi and Luisa Migliorato and Federico Molon and Diego Ravarotto and Roberto Rizzieri and Federico Rossetto and Emanuele Sartori and Gianluigi Serianni and Pierluigi Veltri",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2019",

month = sep,

doi = "10.1016/j.fusengdes.2019.01.053",

language = "English",

volume = "146",

pages = "676--679",

journal = "Fusion Engineering and Design",

issn = "0920-3796",

publisher = "Elsevier",

}

Rizzolo, A, Barbisan, M, Bizzotto, L, Capobianco, R, De Muri, M, Fadone, M, Ghiraldelli, R, Gorno, S, Laterza, B, Marchiori, G, Marcuzzi, D, Migliorato, L, Molon, F, Ravarotto, D, Rizzieri, R, Rossetto, F, Sartori, E, Serianni, G & Veltri, P 2019, 'Characterization of the SPIDER Cs oven prototype in the CAesium Test Stand for the ITER HNB negative ion sources', Fusion Engineering and Design, vol. 146, pp. 676-679. https://doi.org/10.1016/j.fusengdes.2019.01.053

TY - JOUR

T1 - Characterization of the SPIDER Cs oven prototype in the CAesium Test Stand for the ITER HNB negative ion sources

AU - Rizzolo, Andrea

AU - Barbisan, Marco

AU - Bizzotto, Luisa

AU - Capobianco, Roberto

AU - De Muri, Michela

AU - Fadone, Michele

AU - Ghiraldelli, Raffaele

AU - Gorno, Sophie

AU - Laterza, Bruno

AU - Marchiori, Giuseppe

AU - Marcuzzi, Diego

AU - Migliorato, Luisa

AU - Molon, Federico

AU - Ravarotto, Diego

AU - Rizzieri, Roberto

AU - Rossetto, Federico

AU - Sartori, Emanuele

AU - Serianni, Gianluigi

AU - Veltri, Pierluigi

PY - 2019/9

Y1 - 2019/9

N2 - The ITER Heating Neutral Beam (HNB) injector is required to deliver 16.7 MW of power to the plasma from a neutralized beam of H−/D− negative ions, produced by an RF source and accelerated up to 1 MeV. To enhance the H−/D− production, Cs will be routinely evaporated in the source by means of specific ovens embedded in the source, to reduce its work function. Controlling and monitoring the evaporation rate of Cs inside the source will be fundamental to achieve the desired performance for the ITER HNB. The prototype RF negative ion source SPIDER has been developed and built in the Neutral Beam Test Facility at Consorzio RFX. In SPIDER, liquid Cs based ovens will be used to inject Cs vapors inside the source. The CAesium Test Stand (CATS) has been specifically designed and set up for testing, commissioning, and characterizing Cs ovens in vacuum, but also to study the Cs evaporation and deposition onto surfaces. A SPIDER Cs oven prototype has been manufactured and tested in CATS in order to characterize its thermal behavior, by means of thermocouples and thermal camera, and its Cs flux, by means of Surface Ionization Detectors and Laser Absorption Spectroscopy.

AB - The ITER Heating Neutral Beam (HNB) injector is required to deliver 16.7 MW of power to the plasma from a neutralized beam of H−/D− negative ions, produced by an RF source and accelerated up to 1 MeV. To enhance the H−/D− production, Cs will be routinely evaporated in the source by means of specific ovens embedded in the source, to reduce its work function. Controlling and monitoring the evaporation rate of Cs inside the source will be fundamental to achieve the desired performance for the ITER HNB. The prototype RF negative ion source SPIDER has been developed and built in the Neutral Beam Test Facility at Consorzio RFX. In SPIDER, liquid Cs based ovens will be used to inject Cs vapors inside the source. The CAesium Test Stand (CATS) has been specifically designed and set up for testing, commissioning, and characterizing Cs ovens in vacuum, but also to study the Cs evaporation and deposition onto surfaces. A SPIDER Cs oven prototype has been manufactured and tested in CATS in order to characterize its thermal behavior, by means of thermocouples and thermal camera, and its Cs flux, by means of Surface Ionization Detectors and Laser Absorption Spectroscopy.

KW - Caesium

KW - LAS

KW - NBI

KW - SID

KW - Test bed

UR - https://www.scopus.com/pages/publications/85059952242

U2 - 10.1016/j.fusengdes.2019.01.053

DO - 10.1016/j.fusengdes.2019.01.053

M3 - Article

AN - SCOPUS:85059952242

SN - 0920-3796

VL - 146

SP - 676

EP - 679

JO - Fusion Engineering and Design

JF - Fusion Engineering and Design

ER -

Characterization of the SPIDER Cs oven prototype in the CAesium Test Stand for the ITER HNB negative ion sources

Abstract

Funding

Keywords

Access to Document

Other files and links

Fingerprint

Cite this