Mu3e tech coord: Planning for 2020 by

Instructions

meierfrank — 2020-05-29 09:47:17 UTC

Please add to your project whatever we should consider for the discussion. You can add links and images, if you like.
Some ideas:
- Current status
- Plans for this year
- Plans for testbeams
- Dependencies
- Uncertainties due to COVID
- etc.

Racks

2020-05-29 11:36:00 UTC

How do we go about procuring and installing the cooled racks? Coordination with MEG drift chamber?

Fibre Cabling

2020-05-29 11:37:12 UTC

Shall we order the fibres?
How have delivery times changed?
will we need a call for tender? NO, if <230kCHF
Procedure for fibre testing (prior to installation). Mainz will take care of the testing equipment?
Who does the actual installation (us or PSI electricians)?
Cable trays: electricians; Fibres: us

Mock-up of layer 1-2, overview

luigivigani1989 — 2020-06-01 10:43:11 UTC

-Goal
-Mupix10 status
-Si heater status
-6-chip LTU ladder status
-Long term plans
-Risks and Uncertainties

Goal

luigivigani1989 — 2020-06-01 10:44:52 UTC

-Produce half detector with Mupix10 20 Ohm*cm chips
-Mount half of the ladders
Modules will be half used
-If possible mount the other half as well (not likely)

Mupix10 status

luigivigani1989 — 2020-06-01 10:46:33 UTC

-First wafer (not thinned) arrived
-4 chips mounted on single chip inserts
-Some issues with insert, currently debugging
-More wafers coming, thinning facility just reopened

Si Heater status

luigivigani1989 — 2020-06-01 10:48:20 UTC

-Tooling designed and tested with tape heaters. Looks good.
-Microscope needed for checking that distances are OK. Ordered (arriving this week).
-Test board to check resistances already available.

Long term plans

luigivigani1989 — 2020-06-01 10:50:42 UTC

Optimistically:
-Test Mupix10 in test beam on the week of 29/06
-In the meantime gain confidence in ladder production with Si Heaters
-In the meantime, DAQ would be stable and ladder test boards produced
- Get 6-chip ladders by end of July/ beginning of August
-Start ladder production and testing in September
-Mounting of the Mupix10 demonstrator by the end of the year

6-chip ladder status

luigivigani1989 — 2020-06-01 10:53:11 UTC

-Design almost finished (90% according to Alex - student designing them)
-Review with LTU done last week, good feedback
- Concern with space around HV pad being too close to the beighbouring chips.
-Internal review later this afternoon
-Design completed and green light for production in 1/2 weeks
-DAQ work ongoing

Risks and Uncertainties

luigivigani1989 — 2020-06-01 10:56:39 UTC

-Mupix10 not working:
---Wait for Mupix11?
---This would cause quite some delays
-Mupix10 tests not satisfying at first testbeam
----Other testbeams: DESY september, PSI July

-Ladders not OK:
---Redesign them. Might take 1/2 months.

-No test board for ladders
---Paolo from Bristol quit when design was not ultimate
---New designer candidates shortlisted. They can start soon.
---Mounting untested ladders not an option

-Cooling system

-Cabling

Tentative Mu3e beam schedule at PSI

meierfrank — 2020-06-02 04:14:11 UTC

πE5 weeks 31-33 and 48-51
πM1 weeks 31-32 and 39-40

Celeroton turbo compressor

meierfrank — 2020-06-02 04:18:16 UTC

- Prototype test at FHNW (June)
- Purchase of unit, if test successful
- Finish studies at FHNW (until Aug)
- Prep work for cooling setup at πE5

Fischer turbo compressor

meierfrank — 2020-06-02 04:19:56 UTC

- Procuring of engineering study

Flow-metering

meierfrank — 2020-06-02 04:20:43 UTC

- Prototype test of Venturi tube by FHNW at PSI helium facility (June/July)

Mock-up studies

meierfrank — 2020-06-02 04:22:13 UTC

- Design tests with Celeroton compressor after FHNW studies finished
- Prepare L3/4 tests at helium facility of PSI (subject feasibility and availability)
- When can we realistically count on the L3/4 mock-up being at PSI? A L4-only study would be a good start.

Delivery date

meierfrank — 2020-06-02 04:37:31 UTC

September 2020

Current leads

2020-06-02 06:37:43 UTC

Installation of current leads to area

Installation of magnet support

2020-06-02 06:41:50 UTC

- Need to discuss timing with MEG
- Will install part of CMBL at same time

New vacuum chambers

2020-06-02 06:44:38 UTC

- Will need to design/construct a few new pieces of vacuum equipment for the beamline to connect to the magnet
- Construct "beam nose"
Planned for Aug

Equipment for beam tests with magnet

2020-06-02 06:46:26 UTC

- Dedicated vacuum tubes of different diameters; collimator/moderator proxy
- Support for inside the magnet
Shifted to Aug

Status

ymunwes — 2020-06-02 06:47:11 UTC

-Assembly tools are ready
-prepare Lab for assembly
-prepare QA stations
- still missing sticker QR-code to link the matrices to the DB (and some work needed on the DB)
-TMB - final stage, hope to submit in 1.5 months (delay)
-Matrix board - submitted (ready in 25 working days
-Tiles - in production
-Endrings - ready (from PI)

Plans for this year

ymunwes — 2020-06-02 06:50:45 UTC

-2 Modules assembly, start late June
- Longer submodule lab characterization
- Module Test at Desy, after the summer break, prefer 2 weeks
-end of the year at PSI?

Uncertainties

ymunwes — 2020-06-02 06:53:18 UTC

TMB - need to remember that it will be the first iteration, anything can happen
- Mutirg V2 - never been tested
- DESY schedule is unknown

- Once the board is in hand, still need time for debug of the readout

Need to solve

ymunwes — 2020-06-02 06:57:38 UTC

-Cables - not yet decided (also connector)

Status

2020-06-02 07:38:52 UTC

1. SciFi ribbons ready for production (have still to decide between clear and black glue -TB?)
2. Mechanical design almost final:
- need Mu3e blessing (9.6. provide final CAD to Andy Hofer and we will bless it in this meeting)
- cooling and stress test of support underway
3. MuTRiG2_1 SciFIFE beign designed (not final, there will be al least one more iteration to reduce the size of the PCB)
4. cabling is an open issue:
- cable routing and connectors
- cable quality, µtwisted pair studies about to start (Lukas, Jan, Thomas)

2020 GOALS
- produce all ribbons
- mechanics final (Mu3e permitting)
- MuTRiG2_1 operational
- MuTRiG2_2 complete design
- solve cabling
- irradiation studies of SiPM

Other cables

2020-06-02 08:09:53 UTC

- Check with Cryogenic length of other cables

Front end boards

neberger — 2020-06-02 08:10:14 UTC

- Will know in June how well v2.0 works
- Do we need v2.1? When will we have them?
- Low level firmware to be written and tested
- High level firmware to be integrated
- Who is writing sorting firmware for the timing detectors?
- Timeline for backplane prototype?
- Timeline for crate controller?

Switching and receiving boards

neberger — 2020-06-02 08:14:12 UTC

FPGA boards available
Mainz has to buy a few host boxes

Tentative beam schedule at DESY

meierfrank — 2020-06-02 08:20:23 UTC

- Week 27
- Week 42
- Later in the year maybe another week if they become available

Testbeam in πE5

meierfrank — 2020-06-02 08:26:57 UTC

- Needs target
- Detector likely available for week 48-51

Tape Heater Mock-up

joostvossebeld — 2020-06-02 09:03:52 UTC

Steps needed to complete:
- fix issue with spring loading (currently mounted springs result in too high a force on tape heater modules). alternatives springs ordered. Needs testing.
- test mounting procedure. this need spacer bars in places where no module is mounted yet. 1st iteration spacers produced. Needs to the tested
- 8 L4 tape heater modules available, but some have blocked Helium channels. Can these be used. Components to build 2 more.
- L3 modules:
- Oxford optimising v-channel glue stand. L3 production still to start
- L'pool tooling components for L3 available, need to assemble stand. Need to machine carbon fibre clamp-plates plates and complete endpiece manufacture in workshop.
UK Work restart after lockdown:
- l'pool workshop: end June (tbc)
- l'pool cleanroom mu3e area: July? (tbc)

Work on tooling for the mounting of modules with Sil. heater/MuPix10 or Mupix11 to the mounting rings still to start. (after PSI test? need to look at what extra would be?)

Test area

nsftq3k4wh — 2020-06-09 08:02:04 UTC

Prepare power and cooling water

Minimal Power needs (for Mu3e detector tests)

fwauters — 2020-06-09 08:02:10 UTC

- A few lab supplies for various control
- One or two TDK supplies or or a bunch of lab supplies with a high power rating
- x DC-DC converters.
- feedthroughs for power and control

9. June

meierfrank — 2020-06-09 08:02:10 UTC

Deadline for testing the FEB is slipping due to a ordering issue.
UK on similar schedules for restarting activities, likely end of June/ early July
Plan for the detectors inside magnet Dec 2020 should start Sep.

Power platforms

nsftq3k4wh — 2020-06-09 08:02:41 UTC

Install remaining power on platforms

HV for the detectors

fwauters — 2020-06-09 08:07:25 UTC

- option1: bring it in from the outside
- option 2: a bunch of Stefan's boxes (need MSCB inside)

DC-DC status:

fwauters — 2020-06-09 08:09:28 UTC

- version 2 schematic "done", layout ongoing
- production of x boards in summers
- mechanical crate: HD
- Tests with v1: Helium / cooling / (capacitors)
- Detector tests needed: Full pixel module. TMB with 2 Converters.

meierfrank — 2020-06-09 08:11:51 UTC

µtwisted pair studies to start
✔︎ started
Synchronisation of sub-detectors is critical (experience DESY testbeam Feb)

Power crate:

fwauters — 2020-06-09 08:22:34 UTC

- parts for mockup board on the way
- HD waiting for this fro further crate design
- crate controller currently stalled

DAQ and related

neberger — 2020-06-09 08:47:02 UTC

- Cooled Racks for counting house
- Host boxes for FPGA boards (Mainz)
- Data collection server
- Network switches
- Fibre Cables and Fanout boxes (UCL + Mainz if needed)
- Power supply for FEBs
- Control room PCs

HV Status

stefanritt — 2020-06-09 08:56:30 UTC

- HV boards currently redesigned with interlock in/out
- Fibre MSCB bridge under production (to bring MSCB inside the magnet)

Test beam activities

meierfrank — 2020-06-12 04:44:47 UTC

Here is our input to the test beam requirements for this year.

1) irradiation tests in PiE5 weeks 31/32/33

Preparations are ongoing and we should be able to make full use of the beam

to perform irradiation studies of the SiPM arrays

2) fiber tests in PiM1 weeks 31/32

If allocated, during this beam time we will continue and complete fiber tests

using analog electronics

the equipment is basically ready and we can prepare the additional fiber ribbons

by the end of July

3) MuTRiG2 readout electronics tests in PiM1 weeks 39/40

We are aiming at developping the first readout boards using the MuTRiG2 chip

by Sept 01.

The development of this electronics has been slowed down by the pandemic,

but it is reasonable to expect that the prototypes will be ready for use

before the end of Summer.

(This is a verbatim copy of Sandro's email from 11 June 2020)

meierfrank — 2020-06-15 17:37:35 UTC

Scope: collect what we need, no final plan yet.

meierfrank — 2020-06-15 17:41:22 UTC

Crates

neberger — 2020-06-15 19:57:35 UTC

One FEB Crate per side with water cooling
One power crate per side with water cooling
Fibres for FEBs, fibres for MSCB

Power

fwauters — 2020-06-16 07:20:57 UTC

* place for a 3-4 DC-DC converters per side + watercooling
* OR thick (min 2mm) Cu cables to the outside

Monitoring

fwauters — 2020-06-16 07:23:03 UTC

need some basic env monitoring inside
* temperature
* humidity

Power/HV

fwauters — 2020-06-16 07:23:47 UTC

* 1-2 TDK power supplies + rack + cables
* a few dedicated lab supplies would be nice (buy or existing ones)

16. June 2020

meierfrank — 2020-06-16 07:23:48 UTC

Every project responsible should imagine what is needed until next week
Discuss Eq. to be purc hased... next week, assign responisibilities and who is going to purchase
We have to come up with a sketch of what will be going into the beam in December.
- Cooling
- Mech. structure
- Cabling
Arranging things on a table need extra effort. Should we plan for that...?

MSCB hardware?

fwauters — 2020-06-16 07:25:22 UTC

Minimal weather station
- Temperature of gas
- Water leaks: water sensors below water cooling
- Light: maybe with a robust SiPM for monitoring
- Gas quality: oxygen contect, humidity
- Sensor lis: https://docs.google.com/spreadsheets/d/1LgRpFFh_CmbE4ybONcegO5H_Db1ij5FzphHJ3McMFPY/edit?usp=sharing
Sufficient submasters

Platforms/area/beam

nsftq3k4wh — 2020-06-16 07:44:09 UTC

- cable trays fibers (PSI)
- power distribution platforms (PSI)
- Current leads for magnet (PSI)
- Vacuum connections beam line & magnet (PSI)

Magnet

nsftq3k4wh — 2020-06-16 07:46:53 UTC

- Cooling water staging area (PSI)
- Power distribution staging area (PSI)

23 June 2020

meierfrank — 2020-06-23 08:41:04 UTC

Planning of SCS-3000 units we need for autumn testbeam (FW, FM, SR)
Without magnetic field almost 2 orders of magnitude lower rate on any target and they go somewhere...
We plan to measure with field.
If magnet doesn't run well by Oct we will revisit plans.

Power for pixel

luigivigani1989 — 2020-07-06 15:25:30 UTC

-We will have either 16 or 36 power units. Each has low voltage 1.9 V for ~3 A current and HV 100 V.
-Current solution for cables still under investigation. Likely it should be shielded.

Monitoring for pixels

luigivigani1989 — 2020-07-06 15:45:17 UTC

-Temperature should be monitored directly
-It would make sense to monitor humidity and oxigen: should it be done directly on helium flow at the ducts?