POLAR-2 weekly meeting

Monday 30 Nov 2020, 10:30 → 12:15 Europe/Zurich

Zoom info:

 

https://unige.zoom.us/my/merlinkole

 

Agenda:

- Update Geneva

- Update Poland

- Update MPE

- Update IHEP

action_items.pdf

Minutes-weekly POLAR-2 meeting

Attendance:
- Geneva: Xin, Nicolas, Johannes, NDA, Jerome, Merlin, Hancheng
- Poland: Adam, Agnieszka
- IHEP: Jianchao
- MPE: Jochen, J. Michael

WP0:
- Merlin: No news from CSU, ESA is working on a preliminary contract for DPNC for 2021 (meaning we can already spend the money), will ask again about the export issues
- MErlin: Presented POLAR-2 for UNOOSA, outcome is that we will discus with the SING collaboration on Friday about similar problems we are facing, and UNOOSA will see if they can help us with the export issues
- Agnieszka: In Poland the first meeting to progress with PRODEX is planned
- Agnieszka: Interal deadline for the joint application with DPNC is 8th of December so there will be a first draft during this week
- Dominik (not present): is working on the planning of WP3 and WP4 for Prodex application

WP1:
- Merlin: Module 3 will be fixed today and tests will start tomorrow at CERN
- Johan: Components for the thermal tests are at DPNC, will start again this week (when Philippe is done with the setup)
- Johan: Test will be done in 3 stages, first tests will be done with a thermal camera before putting it in the thermal chamber for precision measurements
- Merlin: Will check with Franck to order another thermal camera (the current one is not from DPNC), will buy one either through Franck or using own funding
- Merlin: Test planned at CERN to check optical properties of printed plastic pieces which appear to age
- Nicolas/Xin: concerned about ageing, should be tested properly both for optical and mechanical properties -> Merlin: we will automatically do the thermal tests in a few weeks when doing thermal tests of the scintillators, mechanical test will be done at MPE in a few weeks.

WP2:
- JErome (not present): has brought components to Hybrid for integration tests, we will get the first PCB with mounted SiPMs early next week
- NDA: Working on the results of the irradiation tests, results will be finalized before the end of the year
- Xin: We should do more testing to force errors -> Merlin: we can either do this in Dubna or before with sources
- Xin: Will contact CERN/ESA collaboration person to ask about progress on space irradiation tests at CERN (potentially possible in 2021)

WP6:
- Jochen/Merlin: test at MPE planned for spring, Merlin will start discussing with Franck about what we can test there, Jochen will come with exact dates soon (no reason to rush for earlier tests)

WP8:
- Jianchao: it appears we can do the fibre connection without the matching terminal, still waiting for more information from Tasson but it looks good
- Jianchao: Export issues for components from China do not seem to be a problem, he checked and non of our components are on the list
- Jianchao: checked with CSU/someone he knows from SVOM: it seems there is a test setup at CSU, however, this does not use the technology from Tasson. Still waiting for CSU to come with confirmation, also checking if we can use this facility for POLAR-2 and if the technology is a viable alternative for us to use.
- Nicolas: we wait until we get more information from CSU and answer to all these questions, then we can start to plan properly our design
- Adam: has not yet checked with J. Michael for localization, was checking GBM data for now, will contact him this week

WP9:
- Merlin: checked that Johan's bug fixes from the simulations work, will try to make the transparency plot today or tomorrow + put some simple analysis code on git
- General: Both MPE and IHEP will produce a design proposal (location/size of spectrometers) with performance studies before the end of Feberuary, decision on design will be based on this

Other items:
- No news from EQUATOR (Hancheng is working on the simulations)
- Johan will present at SPIE,  will send around the conf. proceedings and slides to everyone, comments should be back to him before 17:00 (EU time) as he has to submit today
- General decision: For any conference abstracts/conference proceedings should be circulated to the full collaboration at least 1 week before submission, otherwise they cannot be submitted.