POLAR-2 Meeting

22 Apr 2026, 09:00 → 30 Apr 2026, 17:00 Asia/Shanghai

This three-part meeting series is organized to coordinate the scientific strategy, operational framework, and technical validation activities for the POLAR-2 mission. The science meeting in Nanning, will focus on the future scientific exploitation of POLAR-2, including the definition of observation priorities, analysis strategies, alerting capabilities, and collaboration policies required to maximize scientific return. The ground segment meeting at IHEP, will address the organization and implementation of ground operations, including data handling, command procedures, and operational responsibilities. At CSU, the meeting will consist of a technical exchange dedicated to validating the communication procedures using the Alinx board. We will also perform mechanical interface and handling tests with the 3D mock model.

Venue:

No.100, East Daxue Road, Xixiangtang District, Nanning, Guangxi, China
Postal Code: 530004

map

The meeting will be diffused on zoom for the remote Swiss participants :

https://app.zoom.us/wc/91455185858/join

(password: 123456)

 

POLAR-2 Science Workshop Announcement-会议通知.pdf

Wednesday 22 April

15:00 → 21:30 Science Meeting: Discussion

15:00 Round-table discussion: Recent project progress, issues, and how much we can collaborate on POLAR-2 based on the current situation

Speaker: Xin Wu (Universite de Geneve (CH))

17:00 Organization of the 23rd meeting

Speaker: Dr Nicolas Produit (Universite de Geneve (CH))

18:30 Dinner

Thursday 23 April

09:00 → 19:20 Science Meeting

09:30 Welcome speech

Speaker: Enwei Liang

09:40 Introduction to the meeting

Speaker: Shuang-Nan Zhang (Institute of High Energy Physics, Chinese Academy of Sciences (CN))

09:50 Introduction to the POLAR-2 project

Speaker: Xin Wu (Universite de Geneve (CH))

NANNING_XinWu_APR2026_upléoad.pdf

10:10 Design of POLAR-2 Chinese payload

Speaker: Jianchao Sun (Chinese Academy of Sciences (CN))

10:30 Coffee Break & Group Photo

11:00 Status of the CXPD mission —based on the technology of POLAR-2/LPD

Speaker: Hongbang Liu

11:20 POLAR-2 science HPD

I will speak about generalities important for
polarization measurement and other measurements with POLAR-2 HPD
I will give a list of possible science and what they require in term
of instrument, data rate, auxiliary data and manpower.
This presentation should trigger discussion and introduce some other people presentation.

Speaker: Dr Nicolas Produit (Universite de Geneve (CH))

Nanning.pdf

11:50 POLAR-2 - the context of history of galaxies and large scale structure

galaxy evolution, global SFR and relations with GW and optical transient
observatories - LSST in particular

Speaker: Agnieszka Pollo

12:30 Lunch

14:00 Science pipeline

Science pipeline

Speaker: Johannes Hulsman

14:20 HPD ESRF beam test campaign

Speaker: Johannes Hulsman

14:40 HPD simulation and digitizer status

Speaker: Mobin Mobaseri

15:00 BSD simulation status & Prospects of Prompt Gamma-Ray Burst Polarimetry with POLAR-2

Speaker: Jiang He

15:20 Coffee Break

15:40 LPD simulation status & Data center preparation for the CXPD mission

Speaker: Zuke Feng

16:00 Analysis Tools for POLAR-2/BSD

Speaker: Yue Huang

16:20 Tests status and digitization/realization process of POLAR-2/BSD

Speaker: Zhenghuo Jiang

16:40 Test and calibration status of the LPD/CXPD detector modules

Speaker: Huanbo Feng

17:00 Prospects of pulsar observation with POLAR-2

Speaker: Hancheng Li

Prospects of pulsar observations with POLAR-2.pdf

17:20 Analytical approach of generating the polarimetric responses

Speaker: Hancheng Li

Analytical approach of generating the polarimetric responses.pdf

17:40 Summary and free discussions: Impact on science, prepare some document, white paper preparation

Writing of minutes

Friday 24 April

09:00 → 15:00 Science Meeting: Discussion

09:00 Introduction to the mission

Speaker: Jianchao Sun (Chinese Academy of Sciences (CN))

09:20 Status of the Technical Design Report for the payload

Speaker: Jiangtao Liu

10:20 Coffee Break

10:50 Discussion of the MOU

Speaker: Laiyu Zhang

11:30 Discussion of the collaboration

Monday 27 April

09:00 → 21:00 CSU: Hardware Tests

Team A: hardware tests with Alinx box for communication between POLAR-2 and CSS (send ESRF root file and see if it arrives
Team B: hardware test with 3D mock model (assembly, integration, handling, cabling, etc.)

09:00 Mechanics Review

Status of POLAR-2 HPD mechanics. Finalize ICD. Discuss detailed action plan activities in mind

Speakers: Frank Raphael Cadoux (Universite de Geneve (CH)), Johannes Hulsman

10:00 Signing of SoW

12:00 Lunch

14:00 Electrical Interface

Finalize open issues of Electrical part in ICD. Discuss detailed action plan for planned activities.

Tuesday 28 April

09:00 → 17:00 CSU: Hardware Tests

Team A: hardware tests with Alinx box for communication between POLAR-2 and CSS (send ESRF root file and see if it arrives
Team B: hardware test with 3D mock model (assembly, integration, handling, cabling, etc.)

09:00 → 17:00 Ground Segment

Wednesday 29 April

09:00 → 17:00 CSU: Hardware Tests

Team A: hardware tests with Alinx box for communication between POLAR-2 and CSS (send ESRF root file and see if it arrives
Team B: hardware test with 3D mock model (assembly, integration, handling, cabling, etc.)

Thursday 30 April

09:00 → 17:00 CSU: Hardware Tests

Team A: hardware tests with Alinx box for communication between POLAR-2 and CSS (send ESRF root file and see if it arrives
Team B: hardware test with 3D mock model (assembly, integration, handling, cabling, etc.)