Present: HA, SD, AS, AW, AM, BW, DK, FF, KN, LM, MM, TR, LV, JH
Minute Taker: HA
HA: <1.5% crosstalk observed for mupix10 routing, will be irradicated in MuPix11, more details next time.
SD: more issues in the DAQ repository(growing), more came up with aria5, distribute work, hackaton before christmas to resolve most of these.
AS: clear why it worked in the past and does not work now
SD: most problems with Arria5, also many software changes since last use of Arria5, link b not working with mupix10 for arria5 (puzzeling)
AS: send PSI a working setup, just do it
Dohun and Thomas will take care
AW: preparing testbeam at HIT next week.
BW: glued more run2020 sensors, glued 3 more 100u run2020, first tests show good yield, new untested chip versions are now available, some bonds broke -> rebond
LV: Any measurements planned?
BW: look into the different amplifiers nmos, pmos, cmos ; get HiDR chips working, looks already promissing
DK:
FF: Hock up SiPM to Szintillating tile (on going), need input from Hannah
JH: nothing new as always
LV: oh no
LM: topic aside helping in the lab for HiWi?
HA: data analysis --> David, next week
MM: adapting noise tuning code(FPGA based) to MuPix10
SD: is the code of the bachelor thesis available?
MM: yes, need to go through this together and include it into the repository
MM: news for kolloquium possibilities?
AS: no, need to be granted on case to case basis, I will gather information, no time estimate, could be rather short notice
Discussion about getting a certificate for bachelor, not possible ...
TR: power supplies are beeing ordered, calibrated supplies required? ; visit at company for custom electronics connectors etc. with LV and Frank Schumacher; we need multi twisted pair cables, cables of the company not suitable, too large ; small number of custom connectors can be ordered to fit our micro twisted pair cables
AS: get micro twisted pair cables from companies that CMS used (boundles) and hand it to the company to find a custom connector solution
AS: maybe direct soldering the micro twisted pair cables is the best solution instead of a plug
TR: set up meeting to discuss this matter with experts and discuss options: rigidity, connector side
AS: soldering to interposer is baseline(?) ; connector makes things more modular
TR: I need brass screws, to attache the inner tracker to the beam pipe --> 400€ (custom made)
TR: do we need to check magnetic properties of the brass screws (magnetic susceptibility)?
AS: need to measure or get the number from the company, but due to the ammount of material this is mostlikely not to worry about.
TR: order multiple lengths, or buy longest and shorten in the workshop?
AS: order fitting lengths, else only additional work
TR: I have the offer, I will order them in December
TR: SpTAB bond MuPix10 on an HDI after the meeting, HDI not perfect for the bonding onto the insert.
AM: sends around her latest efficiency results
LV: working on the detector adapter board with ASch, mostly size constraints
AS: How is the Setup being send to PSI?
LV: Parcel. I take care.
Discussion of AMs: plot, (please upload)
AS: need to reduce an under stand the noise to use the full range. 50mW was achievable on previous chips.
HA: largest difference is the externally controllble cascode voltage, this might be the main culprit here
AS: does the extrenal voltage create the noise
BW: is not coupled in through this transistor but determined by the level apllied to the transistor
AS: needs lab investigation and discussion with Ivan
AS: what did you change to the last time to achieve the higher efficiency?
AM: new time cuts etc. fixed some issues in the tracking.
Meeting closed!
