Production of Intense Beams and Highly Charged Ions (PIBHI)

6 Apr 2025, 18:00 → 9 Apr 2025, 23:00 Europe/Rome

Gran Hotel Faraglioni

Luigi Giuseppe Celona (Istituto Nazionale di Fisica Nucleare)

Accelerators worldwide require reliable sources, usually based on ECR heating, delivering intense currents of monocharged or highly charged ions, often much larger than the ones achieved.  R&D efforts have been constantly carried out worldwide to ensure high beam availability and source performance.

The workshop aims to gather scientists involved in the design and operation of such sources to compare different experiences, discuss and find solutions to the several operational troubles usually encountered (e.g., stable and reproducible production of such intense beams, extraction and transport of space-charge-dominated beams, etc.). 

The main scope of the workshop is to stimulate discussions among the attendees on several topics of interest in dedicated round tables, which usually are not part of the program of classical conferences like ICIS or ECRIS.

The Workshop is organized by the Istituto Nazionale di Fisica Nucleare-Laboratori Nazionali del Sud. The venue is placed at the foot of the Etna Volcano, the highest and most active in Europe, it includes several social events, which will enable participants to mix fertile cultural discussions with the state-of-art of our discipline enjoying the environment with natural and historical beauties.

Looking forward to meeting you at PIBHI 2025.

                                          Luigi Celona
                                          Chair PIBHI 2025

Final Announcement PIBHI25 with Agenda.pdf

PIBHI2025 flyer.pdf

Sunday, 6 April

18:00 → 19:30 Registration

19:30 → 22:00 Get Together

Monday, 7 April

09:00 → 09:30 OPENING SESSION: M01

Conveners: Luigi Giuseppe Celona (Istituto Nazionale di Fisica Nucleare), Santo Gammino (Istituto Nazionale di Fisica Nucleare)

09:30 → 10:30 Open Challenges in the Ion sources: R01

Review talk of the main problems/open issues on ion sources with particular care to the ones treated in the workshop.

Convener: Dr Thomas Thuiller (LPSC)

PIBHI_TALK_THUILLIER_V5.pptx

10:30 → 11:00 Coffee Break

11:00 → 13:00 Beam emittance: role of the magnetic fields and other contributions: R02

What defines the emittance of an ECRIS? What are the factors contributing to the measured emittance? It is traditionally thought that the magnetic field is the dominating contribution. Still, recent works have shown that the extraction design and plasma meniscus focusing/defocusing can have a very large contribution depending on the charge state.

Convener: Dr Olli Tarvainen (STFC UKRI)

13:00 → 14:30 Lunch Break

14:30 → 16:30 Fundamental processes and plasma studies: R03

The characteristics of beams generated by a high charge state ion source critically depend on plasma parameters. An adequate understanding of the electron and ion distribution functions can provide crucial information for performance optimization, facilitating the production of stable high-intensity ion beams, as required by many accelerator facilities.
This discussion should also focus on plasma diagnostics, determining which diagnostic tools are most appropriate in specific experimental contexts and identifying which ones might warrant further progress.

Convener: Vadim Skalyga (IAP-RAS)

16:30 → 17:00 Coffee Break

17:00 → 22:00 LNS VISIT

Visitor Center - Accelerator rooms - AISHA

Tuesday, 8 April

08:30 → 10:30 High Frequency ECRIS: results and developments: R04

Practical performance of high frequency ECRIS (>28GHz) and long-term high power (>8 kW) operation
Hot electrons and microwave heating issues for high-frequency ECRIS

Convener: Prof. Hongwei Zhao (IMP-CAS)

10:30 → 11:00 Coffee Break

11:00 → 13:00 Extraction and transport of intense ion beams: R05

The design of the extraction system of ECRIS or MDIS sources has a huge impact on the source performances (current extracted, emittance, system reliability, etc.). What are the main guidelines and the tools available in such design? What kind of solution may be envisaged for the transport of intense beams from ECRIS or MDIS?

Convener: Dr Ralph Hollinger (GSI)

13:00 → 14:30 Lunch Break

14:30 → 16:30 Magnetic system for future ECRIS: R06

The magnetic system of future ECRIS envisages the need to operate daily and reliably with high magnetic fields. Limiting factors, technologies, and new magnet solutions are analyzed. Lessons Learned

Convener: Dr Janilee Benitez (LBL)

16:30 → 17:00 Coffee Break

17:00 → 19:00 Metallic ion beam production: R07

The production techniques for solid material introduction have evolved over the decades in response to the needs of the scientific community. The need for higher beam intensities and charge states, long-duration runs, and the use of expensive isotopic material have driven the development of new techniques and the refinement of old ones with the constraint of not negatively impacting source performance.

Convener: Dr Rick Vondrasek (ANL)

Wednesday, 9 April

08:30 → 10:30 Beam reliability, reproducibility and stability issues: R08

Beam quality  issue of high frequency ECRIS and match with downstream accelerator
Availability, reproducibility and stability of HCI beams for various elements up to uranium from several facilities worldwide. Requests are usually accompanied by an increasing request of beam intensity to increase the beam power on target.?The round table focuses on discussing open issues and future upgrades to ensure source reliable operations.

Convener: Dr Takashi Nagatomo (RIKEN)

10:30 → 11:00 Coffee Break

11:00 → 13:00 Intense HCI beam production in high frequency ECRIS and microwave coupling role: R09

The production of high-intensity HCI beams requires mastering several source parameters, the perspectives in high-charge state production of high-frequency sources are treated.?Development of new coupling schemes for high-frequency ECRIS belonging to a launching-dominated scenario instead of the classical modal-dominated scenario of second-generation ECRIS. Do we really need 60 GHz or higher frequency ECRIS, which means a very big challenge to the superconducting magnet and RF coupling?

Convener: Dr Liangting Sun (IMP-CAS)

13:00 → 14:30 Lunch Break

14:30 → 22:00 Conference Outing&Banquet