Photocathodes for Accelerator Science in Europe (PhASE 2026)

21 sept. 2026, 03:05 → 23 sept. 2026, 18:00 Europe/Paris

100/-1-A900 - Auditorium Joliot Curie (IJCLab)

In the framework of the series of the european workshops on photocathodes for particle accelerator applications (previousy EWPAA), the next event will be held in France, near Paris, following the 5th edition hosted at HZDR in Dresden in 2024.

Organized by CNRS/IN2P3 via LPSC and IJCLab, the Photocathodes for Accelerator Science in Europe workshop (PhASE26) will be hosted by Irène Joliot Curie Laboratory (IJCLab) in Orsay, September 21-23, 2026. This meeting brings together experts in the field of photocathode electron sources dedicated to particle accelerators aiming to share knowledge and latest progress in this field, critical of future accelerators.

The event will propose about 40 oral presentations, organized in 8 sessions, as well as a poster session (format A0, portrait) and visits of IJCLab’s infrastructures.

The sessions will cover:

• overview of photocathode research
• accelerator applications of photocathodes
• photocathode related studies and novel concepts
• metallic photocathodes
• semiconductor photocathodes
• polarized photocathodes
• theory of photocathodes
• characterization techniques.

 

A social event is planned with a diner cruise on the Seine river, allowing sight seeing of beautiful Paris monuments (Notre Dame, Eiffel tower, Louvre).

Proceedings will be published (no peer-review) based on one-page summary provided by each speaker when the workshop starts.

If you need a visa to attend this event, please contact the organizers.

We hope to see you in Orsay !

Maud BAYLAC (CNRS/LPSC), Walid KAABI (CNRS/IJCLab)

Important deadline:

Registration deadline : July 14, 2026

affiche-PhASE26-V5-1.pdf

CF_Acces_PDF.pdf

IJCLab-plan-A4-RectoVerso-0125 1.pdf

Plan-Metro.1768224544.pdf

lun. 21 septembre

09:00 → 10:00 Registration

10:00 → 10:20 Opening session

10:20 → 12:50 Overview of photocathode research: Overview

10:20 Summary from europe EWPAA24

Orateur: Rong Xiang

10:50 Summary from USA P3-2025

Orateur: Siddharth Karkare

11:20 Coffee break

11:50 Progress report from China

Orateur: Huamu Xie

12:20 Progress report from Japan

Orateur: Masahiro Yamamoto

12:50 → 14:30 Lunch at the university cafeteria

14:30 → 17:10 Photocathodes for accelerator applications

14:30 R&D with the sealab gun

Orateur: Jonas Dube

14:50 R&D for CLARA

Orateur: Hugh Churn

15:10 Robust photocathodes for CW XFEL

Orateur: Xudong Li

15:30 Photocathodes for DESY : Anna Winiarska

15:50 Coffee break

16:20 UED sources for ultra fast applications

Orateur: Jared Maxson

16:40 Electron source development and charge scaling at FACET-II

Orateur: Brendan O'Shea

17:10 → 18:10 Tutorial: Photocathode physics, a band structure perspective

Président de session: Andreas Schroder

18:10 → 19:40 Posters

mar. 22 septembre

09:00 → 10:50 Photocathode related studies

09:00 Electron beam from laser-cooled atoms: latest developemnts at Eindhoven

Orateur: Julius Huijts

09:20 Ultrafast Electron Diffraction Sources and Photocathode R&D at Tsinghua University

Orateur: Renkai Li

09:40 Compact all optical terahertz (THz)-driven electron source

Orateur: Nicolas MATLIS

10:00 Terahertz excitations : TBC

10:20 Coffee break

10:50 → 12:30 Metallic photocathodes

10:50 Cryogenically cooled copper photocathode for SRF gun

Orateur: Dmitry Bazyl

11:10 Electron emission at metallic needle tips and nanophotonic electron accelerators

Orateur: Manuel Konrad

11:30 Semiconductor photocathodes feedback and towards FCCee

Orateur: Giulia Tenasini

11:50 Photoemission from Plasmonic Au Nanogroove Arrays : TBC

12:30 → 14:00 Lunch at the university cafeteria

14:00 → 16:10 Semiconductor photocathodes

14:00 First results of PERLE photocathode

Orateur: Gael Sattonnay

14:20 Soft- and hard XPS and XAS measurements on a Na-K-Sb photocathode : TBC

Orateur: Alice Galdi

14:40 Photocathode developments for Brixsino

Orateur: Daniele Sertore

15:00 Photocathode developments at SLAC

Orateur: Theo VECCHIONE

15:20 Semiconductor photocathodes: Modeling electron emission processes

Orateur: Andreas Schroder

15:40 Coffee break

16:10 → 17:50 Polarized photocathodes

16:10 High polarization photocathodes at Mainz

Orateur: Kurt Aulenbacher

16:30 Enhanced GaAs activation using Li and recent developments towards automated activation

Orateur: Markus Engart

16:50 Operating and Innovating a Polarized Electron Source

Orateur: Joseph Grames (Jefferson Lab)

17:10 High polarization high QE photocathodes for EIC

Orateur: Erdong Wang

17:30 GaAs photocathodes in SRF gun

Orateur: Erdong Wang

18:00 → 19:00 Transportation to Paris for the diner cruise on Seine river

mer. 23 septembre

09:00 → 10:50 Photocathode theory

09:00 Ab initio many-body photoemission model

Orateur: Richard Schier

09:20 Photoemission simulation from nanostructured surfaces

Orateur: Margarita Bulgacheva

09:40 Collective and surface charge effect for high brightness e bunch production for FCC

Orateur: Anahita OMOUMI

10:00 Ab initio modelling of photoemission

Orateur: Felix Mildner

10:20 Coffee break

10:50 → 11:50 Characterization techniques

10:50 Characterization of lifetime of bi alkali photocathodes

Orateur: Saransh Malhotra

11:10 Photocathodes transfer for PERLE

Orateur: Verena Kuemper

11:30 Photocathodes transfer for suitcase purposes

Orateur: Cyril Straessle

11:50 → 12:30 Closing session

12:30 → 14:30 Lunch at the university cafeteria

14:30 → 16:30 Lab tour