infn milano bicocca

1SLO, 25 March 2010

ELECTRONICS

INFN Milano BicoccaFeaturing:

Claudio Arnaboldi;

Andrea Giachero;

Claudio Gotti

Gianluigi Pessina;

and also:

Alessandro Bau (partial);

Andrea Passerini (partial).

2SLO, 25 March 2010

In Shortly

Summary of the Electronic Review of the last December in Berkeley;

State of the Electronic system:

Production;

design

Testing.

3SLO, 25 March 2010

Electronic Review (I)

A review has been made on December 9 and 10 in Berkeley.

DOE asked for 3 experts in Berkeley.

(Bryant, Freedman and Kadel were also present)

Reports were from:

Gianluigi (with Claudio) on the Electronic Project;

Frank about the production and founding;

Huan about testing.

The project is mature;

Investigation of the observed anomalies on some channels with the pulser;

provide details about the founding needs;

provide details on the testing procedures.

Conclusive remarks:

4SLO, 25 March 2010

Electronic Review (II)

The 3 hours reports can be found at:

Or navigating from:

http://pessina.mib.infn.it

http://crio.mib.infn.it/wig/electronics/

5SLO, 25 March 2010

Electronic System Scheme

Bias and Load Res.

Pre SS

X6

Main board

Pro. Logic

Backplane

Bias and Load Res.

Pre SS

X6

Main board

Pro. Logic

Backplane Bessel Filter

x12

Pro. LogicBackplane

Bessel Filter

x12

Pro. LogicBackplane

Linear Low no. Power

supply

Pre. Reg.

(Switc.)

48 V Switc. Reg.


supply

Pre. Reg.

(Switc.)

48 V Switc. Reg.

K =Kapton

Mixing CamberK

= PEN =Costantan

K =KaptonK =Kapton

Mixing CamberK

= PEN= PEN =Costantan=Costantan

Detector Very front-end

Antialiasing

Power supply systemHeather Pulse

Gen.

Calibration Pulse Gen.

Small Faraday Cages

Top of the refr.

Close to the DAQ

DAQ

Links to the detectors: PEN and glue Kapton boards.

6SLO, 25 March 2010

Detector Link (I)

K =Kapton

Mixing CamberK

= PEN =Costantan

K =KaptonK =Kapton

Mixing CamberK


Detector


The PEN tapes link system from the Mixing chamber down to the detectors and the heaters has been fully designed for both CUORE and CUORE0.

PEN tapes for CUORE0 will be available starting from the next week;

Test tapes or CUORE in various geometry will be also available by that time.

7SLO, 25 March 2010

Detector Link (II)We have arranged the production in order to have the tapes cleaned and packaged under vacuum at the production stage.

The cleaning has been made using our selected tissue and propilic-alcohol.

8SLO, 25 March 2010

Detector Link (III)

K =Kapton

Mixing CamberK

= PEN =Costantan

K =KaptonK =Kapton

Mixing CamberK


Detector


Considerations:

1. With respect to the original layout, room has been added to some tapes at their bottom for the implementation of thermometers able to measure the far location of the detector frame. These thermometer have to be low-radiation compliant.

2. On some Kapton boards, one per column, room has been made available to add 5 differential connections for the readout of thermometers and the like.

9SLO, 25 March 2010

Very Front-end: Preamplifier

K =Kapton

Mixing CamberK

= PEN =Costantan

K =KaptonK =Kapton

Mixing CamberK


DetectorVery front-end

Pre

Preamplifiers are in the pre-production phase at USC.

10SLO, 25 March 2010

Very Front-end: Main board

K =Kapton

Mixing CamberK

= PEN =Costantan

K =KaptonK =Kapton

Mixing CamberK


DetectorVery front-end

Pre PGA

Completed

Main board

Detector biasing+Load resistors

Completed


Very Front-end: Main board

K =Kapton

Mixing CamberK

= PEN =Costantan

K =KaptonK =Kapton

Mixing CamberK


Detector

Main board

The layout of the board is starting.


The calibrating pulse generator (I)

K =Kapton

Mixing CamberK

= PEN =Costantan

K =KaptonK =Kapton

Mixing CamberK


Detector

Heather Pulse Gen.


The calibrating pulse generator upgrade is under development.

The firmware and the switching part of this instrument has been completed.

Its characterization is under way with good results.


The calibrating pulse generator (II)

K =Kapton

Mixing CamberK

= PEN =Costantan

K =KaptonK =Kapton

Mixing CamberK


Detector

Heather Pulse Gen.


The calibrating pulse generator upgrade is under development.

The firmware and the switching part of this instrument has been completed.

Its characterization is under way with good results.


The calibrating pulse generator (III): pulse width stability

Widthy = 2,982E-04x + 9,000E+02

R2 = 9,943E-01

899,992

899,994

899,996

899,998

900,000

900,002

900,004

900,006

900,008

900,010

900,012

0 10 20 30 40 50 60T (°C)

Wid

th (

s)

Tw (µs)Lineare (Tw (µs))

Temperature dependenceof pulse width


The calibrating pulse generator (IV): pulse width stability

Width

Temperature dependenceof pulse width:

<0.5 ppm/°C

y = 0,3314x - 8,0077R2 = 0,9943

-10

-8

-6

-4

-2

0

2

4

6

8

10

0 10 20 30 40 50 60

T (°C)

Wid

th c

hang

e (p

pm)

ppm/°CLineare (ppm/°C)


The calibrating pulse generator (V): pulse width stability

Width

Jitter of pulse width:

<0.7 ppm,

With temperature:

0.0032 ppm/°C

y = 0,0032x + 0,5636R2 = 0,9945

0

0,1

0,2

0,3

0,4

0,5

0,6

0,7

0,8

0 10 20 30 40 50 60T (°C)

Jitte

r (pp

m)

Jitter (ppm/°C)

Lineare (Jitter(ppm/°C))


Supply voltage system


supply

Pre. Reg.

(Switc.)

48 V Switc. Reg.


supply

Pre. Reg.

(Switc.)

48 V Switc. Reg.

K =Kapton

Mixing CamberK

= PEN =Costantan

K =KaptonK =Kapton

Mixing CamberK


Detector

Power supply system

The DC-DC design of the power supply system is finishing (thanks to the support from Alessandro Bau and Andrea Passerini). It can be controlled and configured remotely like the other devices.A prototype is under development.

The linear ultra-low drift and low-noise supply voltage is going to be upgraded.


Antialiasing Filter

Bias and Load Res.

Pre SS

X6

Main board

Pro. Logic

Backplane

Bias and Load Res.

Pre SS

X6

Main board

Pro. Logic

Backplane

K =Kapton

Mixing CamberK

= PEN =Costantan

K =KaptonK =Kapton

Mixing CamberK


Detector Very front-end

Top of the refr.

Bessel Filter

x12

Pro. LogicBackplane

Done

The back plane is with USC for final production.

The Filtering Boards are with USC for prototype.

The design of the Antialiasing filter has been completed (both Analog, Digital and Firmware).

has been developed

DONE


Digital data link

A CAN bus based optical data link has been developed and tested for the control of the electronic system.

The link is either Linux and Window OS compatible.


Production Precautions

It is mandatory to ask:

PCB producer: electrical test.

PCB population:

Automatic Visual inspection test;

In Circuit Test, ICT.


Testing and Calibration (I)

Testing procedure must be defined accurately.

It can be made in 2 steps:

1. Functionality test (at UCLA);

2. Temperature characterization/calibration (in MILANO with UCLA people)

A number of adaptor boards has been made that has been/will be the support for UCLA functionality test.


Testing and Calibration (II): Bessel characterization

Adaptor board (general purpose) from the Bessel outputs to the DAQ inputs:

12 channels amplifiers differential input/differential output.


Testing and Calibration (III): Bessel characterization

Adaptor board (general purpose) from the Bessel outputs to the DAQ inputs:

24 channels input/output,


Testing and Calibration (IV): Bessel characterization

Single adaptor for Bessel Input/output board.


Testing and Calibration (V): Bessel characterization

Input signal for testing a Bessel board


Testing and Calibration (VI): Preamplifier

Testing Board for a single channel preamplifier.

Preamplifier


Conclusions

The electronic system design is progressing.

The final production is on the way for the preamplifiers and the anti aliasing filter.

CUORE0 PEN tapes will be available within the next week;

Kapton boards are waiting for the production.

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