DS-Mat regular meeting

Tuesday 23 Nov 2021, 17:00 → 19:00 Europe/Rome

Zoom

Material meeting minutes 23/11/2021 (L. Luzzi)

1) Status of the assay campaign and urgent assays (Krzysztof)


- New results from ICPMS, a lot submitted last weeks, some to be submitted in the coming days.
- List of urgent assays is done. 
- We should evaluate all the results and we will discuss them offline.
- No news from LNGS.
- No news from measurements in Kracow.

2) DS-mat risks for the TDR (Krzysztof)

Some rrisks in constructing the detector that could compromise the performance of the TPC or make delays in the construction: 
1) introduction of contaminants in the cryostat;
2) very difficult assessment of the surface contamination; the cleaning protocols are not yet defined;
3) use of construction materials from a batch with elevated radioactive content;
4) overlooked or late material screening;

3) Radiopurity of calibration systems (Marie)

Let us know when we can provide the sample of the tube.  

17:00 → 17:10 Status of the assay campaign and urgent assays

Speakers: Krzysztof Pelczar (Institute of Physics, Jagiellonian University), Vicente Pesudo (CIEMAT)

17:10 → 17:20 DS-mat risks for the TDR

17:20 → 17:35 Background induced by calibration pipes

Speaker: Marie Van Uffelen (CPPM, Aix Marseille Université, CNRS/IN2P3)

Background_titanium.pdf

17:35 → 17:55 TDR: Summary of the Bkgs

Speaker: All

17:55 → 18:05 Surface contamination and plate-out/dust measurement at LNGS

Speakers: Chris Jillings (SNOLAB/Laurentian University), Grzegorz Zuzel (Jagiellonian University, Krakow, Poland), Oscar Azzolini (Istituto Nazionale di Fisica Nucleare), Roberto Santorelli (CIEMAT)

18:05 → 18:10 AOB