Name: 8th International symposium on Negative Ions, Beams and Sources - NIBS'22
Start: 2022-10-02T15:00:00+02:00
End: 2022-10-07T18:00:00+02:00
Location: Orto Botanico - Padova, Italy

8th International symposium on Negative Ions, Beams and Sources - NIBS'22

from Sunday 2 October 2022 (15:00) to Friday 7 October 2022 (18:00)

Monday 26 September 2022
Tuesday 27 September 2022
Wednesday 28 September 2022
Thursday 29 September 2022
Friday 30 September 2022
Saturday 1 October 2022
Sunday 2 October 2022

16:00

16:00 - 18:00

Monday 3 October 2022

08:00 Registration
Registration
08:00 - 09:00
Room: Foyer

09:00

09:00 - 09:20
09:20 Oral session 1
Oral session 1
09:20 - 11:00
Room: Auditorium
Contributions

09:20 The BO2022 project. For a history of students and graduates of the University of Padova (1222- 20th century) - Cristina LA ROCCA (Università di Padova)

09:50 Fundamental processes related to negative ion production of different ion species - Mamiko SASAO (Office of R&D Promotion, Doshisha University)

10:20 Stockli: RF (Light) Negative Ion Sources for Non-Fusion Applications, a tutorial - Martin STOCKLI
11:00 Coffee Break
Coffee Break
11:00 - 11:20
Room: Columns hall
11:20
11:20 - 13:10
Room: Auditorium
Contributions

11:20 A review of the NIFS negative-ion based NBI driven with Filament-Arc (FA) discharge - Katsuyoshi TSUMORI

11:50 The ITER Neutral Beam Test Facility: status and perspectives - Vanni TOIGO

12:20 Towards low divergence beams for the ITER neutral beam injection system - Pierluigi VELTRI (ITER Organization)

12:50 A Method of Confirming the Operation of Active Magnetic Compensation Coils on the ITER HNBs - Jamie ZACKS (ITER Organisation)
13:10

13:10 - 14:40
14:40
14:40 - 16:40
Room: Auditorium
Contributions

14:40 Ultra-low work function of caesiated surfaces and impact of specific hydrogen plasma species - Adrian HEILER

15:10 Effect due to Cs injection upon the beam current oscillation extracted from the J-PARC negative hydrogen ion source - Motoi WADA (Doshisha University)

15:30 Mach probe diagnostic for determining positive ion fluxes in H$^-$ ion sources - Vinzenz WOLF (AG Experimentelle Plasmaphysik, Universität Augsburg, 86135 Augsburg, DE)

15:50 Photoelectric current measurement of plasma grid materials for a compact H- ion source - Mayuko NISHIWAKI

16:20 Exploring Cesium and H- beam properties internal to the LANSCE H- Ion Source using Resonant Absorption Spectroscopy and Cavity Ring Down Spectroscopy - David KLEINJAN (Los Alamos National Laboratory)
16:40 Coffee Break
Coffee Break
16:40 - 17:00
Room: Columns hall

17:05

17:05 - 18:35

18:45

18:45 - 21:45
Tuesday 4 October 2022
08:30
08:30 - 10:30
Room: Auditorium
Contributions

08:30 Paving the road towards ITER relevant long deuterium pulses at ELISE by investigating improved operational scenarios - Dirk WÜNDERLICH (Max-Planck-Institut für Plasmaphysik)

09:00 The negative beam source with single driver for CRAFT NNBI: design and conditioning results - yahong XIE

09:30 THE 1MV MITICA POWER SUPPLY BEYOND THE MODERN TECHNOLOGICAL LIMITS: FIRST EXPERIENCE DURING INTEGRATION PHASE - Marco BOLDRIN (Consorzio RFX)

10:00 First H- Beam Extracted from the Non-Caesiated External RF-Coil Ion Source at ISIS - Scott LAWRIE (UKRI)
10:30 Coffee Break
Coffee Break
10:30 - 10:50
Room: Columns hall
10:50
10:50 - 13:00
Room: Auditorium
Contributions

10:50 Numerical study of RF power coupling in fusion-relevant single- and multi-driver H^- ion sources - Dominikus ZIELKE

11:20 SImplified fluid models of radiofrequency and plasma density for NIO1 and design - Marco CAVENAGO (INFN-LNL)

11:50 Investigation of spatially resolved plasma parameter and potential distributions at the BATMAN Upgrade ion source - Stefan BRIEFI

12:20 Construction of a Filament-RF driven hybrid negative ion source at NIFS - Katsuyoshi TSUMORI
13:00 Lunch
Lunch
13:00 - 14:30
14:30
14:30 - 16:30
Room: Auditorium
Contributions

14:40 RF-driven negative ion sources for fusion - Ursel FANTZ

15:10 Negative and positive ion density in front of negative ion production surface in large-scaled negative ion source for fusion - Haruhisa NAKANO (National Institute for Fusion Science, National Institutes of Natural Sciences)

15:40 Key parameters for the ion velocity distribution at the plasma meniscus of a caesiated negative ion source - Antonio PIMAZZONI

16:10 Langmuir-probe measurement in the vicinity of plasma grid aperture of hydrogen negative ion source - engrhyt RATTANAWONGNARA
17:30
17:30 - 19:30
Contributions

17:30 Summary of caesium evaporation and deposition during SPIDER’s first campaign - Michele FADONE

17:35 Effect of plasma grid and bias plate biasing on the SPIDER negative ion beam - matteo AGOSTINI

17:40 Comparison among possible design solutions for the Stray Field Shielding System of the DTT Neutral Beam Injector - Fabio VERONESE (Consorzio RFX)

17:45 Study on the stitching method of beam target infrared image based on local transformation - yongjian XU (institute of plasma physics, chinese academy of science) liping CHEN (institute of plasma physics, chinese academy of science)

17:55 Design and test of a module of a breathable Electrostatic Shield for the MITICA 1 MV negative Ion Beam Source - Giuseppe CHITARIN (University of Padova and Consorzio RFX)

18:00 Investigations on Cs dispersion and Mo coating on SPIDER components - Caterina CAVALLINI Valentina CANDELA

18:05 Study and development of diagnostic systems to characterise the extraction region in SPIDER - Beatrice SEGALINI

18:10 Optimization of a negative oxygen ion beam - Jia HAN (Université de Lausanne)

18:15 Observation of beamlet displacement and parallelism in NIO1 - Margherita UGOLETTI Marco CAVENAGO (INFN-LNL)

18:20 Numerical and experimental investigations of a microwave interferometer for the negative ion source SPIDER - Riccardo AGNELLO (EPFL - Consorzio RFX)

18:25 Drift and non-uniformity mitigation in H- source with Plasma Ion Funnels - Vincenzo VARIALE (Universita e INFN, Bari (IT))

18:30 Direct current measurements of the SPIDER beam: a comparison to existing beam diagnostics - Alastair SHEPHERD

18:35 Three-dimensional calculations of the inductive coupling between radio-frequency waves and plasma in the drivers of the SPIDER device - Daniel LÓPEZ-BRUNA (Laboratorio Nacional de Fusión, CIEMAT)

18:40 Influence of different magnetic configurations on plasma parameters in SPIDER device - Roman ZAGORSKI

18:45 Numerical study of the plasma meniscus shape and beam optics in RF negative ion sources - Katsuya HAYASHI (Keio University)

18:50 Creating negative ion beams from neutral gases using a negative Hydrogen ion source - Andrew PAUL

18:55 Continuous pulse advances in the negative ion source NIO1 - Marco BARBISAN (Consorzio RFX (CNR, ENEA, INFN, Università di Padova, Acciaierie Venete SpA))

19:00 Development of a Negative Helium Ion Source with Non-Metallic Charge Exchange - Philip JACKLE (Simon Fraser University)
Wednesday 5 October 2022
08:30
08:30 - 10:20
Room: Auditorium
Contributions

08:30 Source Performance Optimization in Cesiated Mode in ROBIN - Kaushal PANDYA (Institute for Plasma Research)

09:00 Plasma emission monitored via optical emission spectroscopy during the Cs conditioning at SPIDER - Isabella MARIO

09:20 Experimental results of the SPIDER negative ion accelerator in view of the next operations - emanuele SARTORI

09:50 Progress in the development of negative ion beam source in Korea - Min PARK (Korea institute of Fusion Energy (KFE))
10:20 Coffee Break
Coffee Break
10:20 - 10:40
Room: Columns hall
10:40
10:40 - 12:40
Room: Auditorium
Contributions

10:40 120 mA Operation of J-PARC Cesiated RF-Driven Hˉ Ion Source - Akira UENO

11:10 Over 7200 hours commissioning of RF-driven negative hydrogen ion source developed at CSNS - Weidong CHEN (Institute of High Energy Physics, Chinese Academy of Sciences)

11:40 Discoloration of RF antenna coil surface after long-term operation of J-PARC ion source - Takanori SHIBATA (KEK)

12:00 Correlation H- beam properties to Cs-coverage - Jacques LETTRY (CERN)
12:40 Lunch
Lunch
12:40 - 14:10
14:10
14:10 - 16:40
Room: Auditorium
Contributions

14:10 Caesium Balance of the ISIS H$^-$ Penning Ion Source in Long Pulse Operation - Olli Antero TARVAINEN (STFC Rutherford Appleton Laboratory)

14:40 Plasma Electrode Materials for Cs-free Negative hydrogen ion Sources - Mamiko SASAO (Office of R&D Promotion, Doshisha University)

15:10 The effect of oxygen impurities on a caesium-covered Mo(001) surface: insights from Molecular Dynamics simulations for negative ion sources. - MARIA RUTIGLIANO (CNR-ISTP (Istituto per la Scienza e Tecnologia dei Plasmi))

15:40 Rotational and vibrational temperatures of Hydrogen nonequilibrium plasmas from Fulcher band emission spectra - Domenico BRUNO (ISTP - CNR)

16:10 Development and Commissioning of a Hydrogen Ion Source for the CERN ALPHA Experiment - Mark Andrew JOHNSON (Science and Technology Facilities Council - ASTeC)
16:40 Coffee Break
Coffee Break
16:40 - 17:00
17:00
17:00 - 19:00
Room: Auditorium
Contributions

17:00 Operation and Research Activities on the Three H- Injector Systems at the Spallation Neutron Source - Baoxi HAN

17:30 An H- Surface Plasma Source for the ESS Storage Ring - vadim DUDNIKOV (muons, Inc)

17:50 Recent H− ion source research and development at the Oak Ridge National Laboratory - Rob WELTON

18:20 Increasing the H- output current and Reducing Performance Variations of the SNS H- Source - Martin STOCKLI
20:30

20:30 - 23:30
Room: Sala Rossini
Thursday 6 October 2022
08:30
08:30 - 11:00
Contributions

08:30 Characteristics of co-extracted electrons reduction for the Cs-free negative ion source using TPDsheet-U - Taiga GOKA (Tokai university)

08:35 Overview of MITICA diagnostics design and procurement - Roberto PASQUALOTTO (Consorzio RFX)

08:40 Energy distribution of fragments in H2 dissociation by electron impact for the use in numerical models - emanuele SARTORI

08:45 Characteristics of extracted negative ion beam using electron emitters on the Cs-free negative ion source TPDsheet-U - Ryuichi ONUMA

08:50 Development of Cs-injection System for KFE RF hydrogen Negative Ion Beam Source - Byungkeun NA (Korea Institute of Fusion Energy)

08:55 Laser Powder Bed Fusion: an innovative production method for creating components and devices for Nuclear Physics - Silvia CANDELA (INFN, CRF) Valentina CANDELA (INFN, CRF)

09:00 Effects of different particle injection models on the results of PIC simulation - Hongyu WU (HUST)

09:05 The Effect of Beam Chopping on the Emittance Growth of Negative Hydrogen Ion Beam - Hui LI

09:10 The impact of neutral beam parameters on current drive and neutron yield in DEMO-FNS - Pierluigi VELTRI (ITER Organization)

09:15 Characterization of the Plasma in SPIDER using a Cs-H Collisional Radiative model - Basile POURADIER DUTEIL

09:23 Volume and surface effects in Cs-free regimes in NIO1 - Marco CAVENAGO (INFN-LNL)

09:28 Work Function Measurements in BATMAN Upgrade using LEDs Revealing Remarkably Low Values - Jacob M BERNER

09:33 H- Beam formation simulation in negative ion source for CERN’s Linac4 accelerator - Anna VNUCHENKO (CERN)

09:38 USE OF ELECTRICAL MEASUREMENTS FOR NON-INVASIVE ESTIMATION OF PLASMA ELECTRON DENSITY INSIDE THE DRIVER OF SPIDER - Palak JAIN (Consorzio RFX)

09:43 Spider plasma emission between 300 nm and 900 nm in different operative conditions - Barbara ZANIOL (Consorzio RFX)

09:48 Highly electronegative plasma conditions in the SPIDER negative ion source - Carlo POGGI emanuele SARTORI (unipd)

09:53 Study of the relationship between the source complexity and the beam divergence and homogeneity in SPIDER - Margherita UGOLETTI

09:58 Preliminary design of tungsten wire calorimeter for CRAFT NNBI - ling YU (institute of plasma physics, chinese academy of science)

10:03 Laser-assisted negative ion production in caesium sputter ion source - Akbar HOSSAIN (University of Jyväskylä)
13:00

13:00 - 20:30
Friday 7 October 2022

08:00 Bus transfer
Bus transfer
08:00 - 08:30
08:30
08:30 - 10:30
Room: Teaching Room 3rd floor
Contributions

08:30 Repercussions of the magnetic filter field and the extraction aperture configurations on the negative ion beam properties: insights from a Particle-In-Cell model. - gwenael FUBIANI (CNRS)

09:00 Study of plasma meniscus including the surface produced negative ions by using PIC-MCC simulation - Kenji MIYAMOTO

09:30 Dynamic responses of negative ion meniscus to externally applied RF field - Kenichi NAGAOKA (National Institute for Fusion Science)

10:00 BATMAN Upgrade: general results from beam optics studies - Christian WIMMER (Max-Planck-Inst. f. Plasmaphysik)
10:30 Coffee Break
Coffee Break
10:30 - 10:50
10:50
10:50 - 13:20
Room: Teaching Room 3rd floor
Contributions

10:50 Simple beam energy recovery as alternative to Residual Ion dump in Neutral Ion Beam Injections - Vincenzo VARIALE (Universita e INFN, Bari (IT))

11:20 Utilization of Compact ECR plasma source for large area H- ion production - Shweta SHARMA

11:50 Experimental Characterization and Theoretical Studies of ECR Produced Hydrogen Plasma Ion Beams - Priti SINGH (Department of Energy Science and Engineering, Indian Institute of Technology Delhi) RAMESH NARAYANAN (Department of Energy Science and Engineering, Indian Institute of Technology Delhi, India)

12:20 Photo-assisted Cl-, Br- and I- production in cesium sputter ion source - Akbar HOSSAIN (University of Jyväskylä)
12:50 Lunch
Lunch
12:50 - 13:50

13:50

13:50 - 14:50
Room: Teaching room 3rd floor

14:50

14:50 - 16:50

16:50 Bus transfer to Padova downtown
Bus transfer to Padova downtown
16:50 - 17:20

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