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Research activities at ITA for future accelerator. M. C. Esteban. Outline. Introduction ILC:FTD detector Activities Projects & contributions SLHC: CMS Tracker upgrade detector Activities Projects & contributions SuperKEKB: DEPFETdetector Activities Projects & contributions

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Outline
Outline

  • Introduction

  • ILC:FTD detector

    • Activities

    • Projects & contributions

  • SLHC: CMS Tracker upgrade detector

    • Activities

    • Projects & contributions

  • SuperKEKB: DEPFETdetector

    • Activities

    • Projects & contributions

  • ITA HEP group


Introduction
Introduction

ITA has been working in HEP since 2008

  • Two main working areas:

    • Electromagnetic compatibility issues

      • EM noise characterization of new technologies for HEP

    • Power supply distribution systems

      • Several topologies has been studied

        • Serial powering & DC-DC powering (SLHC)

        • Power pulsing (ILC)

  • Both issues (EMC & PS) have been tackle at the same time to ensure the correct integration of electronics at system level

    • It will help to implement a robust system by design


Introduction1
Introduction

  • Our work has been focused on three future accelerators:

    • ILC: Sub-detector FTD (ILD)

    • SLHC : Sub-detector Tracker upgrade (CMS upgrade)

    • SuperKEKB: Sub-detector DEPFET (Belle II)


Ilc ftd detector
ILC: FTD detector

  • The mstrip-FTD system is a silicon strip tracker located in the innermost part of the tracker region of the ILD.

  • It constitutes of 10 disks.


Ilc ftd detector1
ILC: FTD detector

  • Main working areas :

    A. Power supply distribution design:

    • Power estimation

      B. Analysis of power pulsing effects in the power supply distribution system:

    • Transients

    • EMI

      The analysis of both powering aspects will define the optimal power supply topology


Ilc ftd detector main power design parameters
ILC: FTD detector - Main Power design parameters

A. Power consumption :

  • The total number of strips is higher than a million

    • Non –uniform distribution

  • Total current consumption of FTD is around 650 A

    • Currents consumption of FTD per power group


Ilc ftd detector main power design parameters1
ILC: FTD detector - Main Power design parameters

B. Analysis of power pulsing effects in the power supply distribution system:

  • The ILC accelerator has a duty cycle of 0.5%

    • 1 ms bunch train every 200ms

  • If the power demanded by the FEE is synchronized to the bunch train, it helps to save energy

    • Energy dissipated will be lower

  • However several important issues have to be considered during the design of the power system:

    • Transient phenomena

    • EMI phenomena

  • All these phenomena have an impact in the design of the power supply distribution system

    • Topology

    • Cooling and material budget


Ilc ftd detector main power design parameters transients
ILC: FTD detector - Main Power design parameters Transients

  • Power consumption

    • 1 ms bunch train every 200ms

    • V= 1,25 V; I= 12 A

Voltage

  • Voltage compensation may be required

    • Cable resistance

  • Over-voltages and Voltage dips may be present

    • Cable inductance


Ilc ftd detector main power design parameters emi
ILC: FTD detector - Main Power design parameters EMI

  • The synchronization of the FEE power operation with the bunch crossing introduces a current periodic signal with a spectra content in the power supply system.

  • The spectra content varies between few Hz up to several hundreds of kHz

  • LF- Problematic due near field : Magnetic field

    • Every 5 Hz a pulsing magnetic field higher than 0.2 A each

      • Itotal = 40 x 0.2 A = 8 A

    • It may cause mechanical problems

      • Vibrations – wire bounding degradation


Ilc ftd detector power supply topology
ILC: FTD detector - Power supply topology

  • There are several topologies that may be implemented in the FTD.

    • DC-DC based power distribution

    • Local LV RAD-hard regulators

    • Remote power supply

  • Each of them has advantages and disadvantages

  • We consider DC-DC as the first option of analysis:

    • To absorb transients associate to power pulsing system.

      • Keep transients locally at FEE level.

      • Low currents before DC-DC due to converter ratio

        • Low transients

    • Synergy with SLHC and new DC-DC hard-rad design.

      • HF noise & Rad issues



Ilc ftd detector projects contributions
ILC: FTD detector – Projects & Contributions

  • FTD detector studies since 2011

  • Projects

    • I+D en Detectores para Futuros Colisionadores: FPA2010-22163-C02-01 (Ip: I.Vila) 2011- 2013

      • Estudios de EMC en nuevos detectores

    • ITA HEP activities (2008-2011)

  • Contributions

    • Linear Collider Power Distribution and Pulsing workshop May 9 -10 in Paris (LAL Orsay).

      • “Powering requirements and constraints of the Mstrip-FTD detector”

        • Oral presentation


Slhc cms tracker upgrade
SLHC: CMS Tracker upgrade

Upgrade / Future detectors

Today

  • New FEE requirements forces to install DC-DC converters close to FEE (inside sub-detector modules).

    • The high current demanded by each power channel

      • Low voltage : 2.5 V change to 1.1 V (Power is ≈ constant)

      • It is defined by chip technology (250nm → 130 nm)

  • However DC-DC converters are a very noise source

    • It is necessary minimize the noise coupling between FEE – DC-DC units

    • It is necessary to minimize the total noise inside sub-detector volume

  • A large R&D effort is planned and taking place to develop a DC-DC switching converter to operate under high magnetic field with low noise emissions inside tracker volume

    • However a EM noise studies at system level are required


Slhc cms tracker upgrade1
SLHC: CMS Tracker upgrade

  • Main working areas:

    • Electromagnetic compatibility issues (EMC)

    • Grounding & shielding issues (G&S)

    • Power aspects (PS)

      • Serial & DC-DC converters evaluation


Slhc cms tracker upgrade2
SLHC: CMS Tracker upgrade

  • Working line details

    • Study and analysis of noise generation and distribution at the system level and define critical points of the system integration strategy.

  • Power network impedance effects on noise emissions of DC-DC converters

  • Study of noise propagation effects in power network.

  • Noise immunity test in FEE prototypes.

    • Definition of FEE immunity levels

      • New and/or old FEE

  • Radiation effects on EM noise emissions of DC-DC converters

  • The main goal of these studies is to establish the EMC rules to be applied during the design and integration of the tracker sub-system up-grade.

    • Define a robust topology of Tracker upgrade system by design


Slhc cms tracker upgrade emc characterization of fee
SLHC: CMS Tracker upgrade – EMC characterization of FEE

EMC characterization of FEE

Old Tracker

MEDIDAS

MATLAB

COMSOL

SIMULACION


Slhc cms tracker upgrade pn impedance effects
SLHC: CMS Tracker upgrade – PN impedance effects

Power network impedance effects on noise emissions

The aim is to define and characterize the impedances connected to the DC-DC power converter

  • It defines the noise (conducted and radiated) levels emitted by the DC-DC power converters AT SYSTEM LEVEL

  • Characterization of the electromagnetic environment

    • Impedances ( FEE & Power Bus)

    • Multiple units


Research activities at ita for future accelerator

Introducción

SLHC: CMS Tracker upgrade – PN impedance effects

18

SIMULACION

MEDIDAS

MODELO REAL


Slhc cms tracker upgrade project contributions
SLHC: CMS Tracker upgrade – Project & Contributions

SLCH detector upgrade studies since 2008

  • Projects

    • I+D en Detectores para Futuros Colisionadores: FPA2010-22163-C02-01 (Ip: I.Vila) 2011- 2013

    • EMC immunity studies for CMS tracker upgrade - CMS9.04: Ip (F.Arteche e I.Vila) – (2010-2012)

    • I+D en detectores y estudios fenomenológicos para el colisionador Lineal Internacional : FPA2007 – 66387 (Ip: I Vila) - (2007-2010)

    • ITA HEP activities (2008-2011)


Slhc cms tracker upgrade project contributions1
SLHC: CMS Tracker upgrade – Project & Contributions

  • Conferences

    TWEPP 2008, September, Naxos (Greece)

    • “Detector noise susceptibility issues for the future generation of High Energy Physics Experiments”.

      TWEPP 2009, September, Paris (France)

    • “Interference coupling mechanisms in Silicon Strip Detector – FEE - CMS tracker “wings”: A learned lesson for SLHC”.

    • “DC-DC switching converter based power distribution vs Serial power distribution: EMC strategies for tracker upgrade

      TWEPP 2010, September, Aachen (Alemania)

    • EMC studies for CMS tracker upgrade.Status & Plans

  • JCR paper

    • Global noise studies for CMS Tracker upgrade , Journal of Instrumentation Dec. 2010

  • Workshops

    • CMS power task force meetings

    • ATLAS & CMS upgrades meetings

    • Tracker upgrade meeting – Power group


Superkekb depfet detector belle ii
SuperKEKB : DEPFET detector – Belle II

  • FEE (Sensor, DCD,DHP,DHH)

    • It may be sensitive to EM noise

    • It may radiates ( HF clocks and signals)

  • Power supplies

    • It emits EM noise

  • Cable & connectors

    • It may propagate EM noise inside/outside FEE area


Superkekb depfet detector belle ii1
SuperKEKB : DEPFET detector – Belle II

  • Main working lines are:

    • To systematically approach the grounding design

    • To quantify the immunity /emission of the electronic systems.

  • The main goal is:

    • Conduct studies and measurements to establish a map of EM emissions and susceptibilities of sensitive electronics.

      • Safe DEPFET electronics integration.

  • This is the first time that this kind of mapping will be implemented in a pixel detector

    • Studies conducted previously in Trackers and calorimeters


Superkekb depfet detector belle ii2
SuperKEKB : DEPFET detector – Belle II

  • Main activities:

    • Grounding and shielding strategy for DEPFET: Coordination & Policy

    • Immunity issues of DEPFET FEE: Susceptibility curves of DEPFET system.

    • Noise emissions of PS units: FEE noise immunity and PS noise emission coordination

    • Noise coupling path characterization between FEE and Power units: Noise propagation issues


Superkekb depfet detector immunity issues of depfet system
SuperKEKB : DEPFET detector – Immunity issues of DEPFET System

  • The main goal of this activity is to define the susceptibility level of DEPFET FEE to

    • Radio frequency perturbation

    • Transient perturbation.

  • A set of test will be performed in an EMC unit

    • Immunity test to RF disturbances

    • Transients immunity test


Superkekb depfet detector immunity issues of depfet system1
SuperKEKB : DEPFET detector – Immunity issues of DEPFET system

  • This EMC unit is defined by the minimum structure that may obtain good results to extrapolate results for the whole detector (same topology)

CMS HCAL:

1RBX (12 channels)

CMS Tracker: 1Petal (6000 channels)

…¿¿DEPFET ??...

1 Module /half ?

Power supply

DAQ system..

Test set –up preparation complex


Superkekb depfet detector projects contributions
SuperKEKB : DEPFET detector–Projects & Contributions system

  • DEPFET project since 2010

  • Projects

    • I+D en Detectores para Futuros Colisionadores: FPA2010-22163-C02-01 (Ip: I.Vila) 2011- 2013

    • EMC studies for DEPFET pixel detector, Research project – Max-Planck Institute & ITA (2011-2013)

    • ITA HEP activities (2008-2011)

  • Contributions

    • 4th International Workshop on DEPFET Detectors and Applications, Ringberg Castle ,- 2-5  May  2010

      • Grounding & Shielding: Main issues (Oral presentation)

    • 7th International Workshop on DEPFET Detectors and Applications, Ringberg Castle ,- 9-10  May  2011

      • EMC DEPFET Project: A general overview (Oral presentation)


Ita hep group
ITA - HEP group system

  • The HEP studies at ITA are carrying out by Electrical engineering group.

    • Electromagnetic compatibility characterization & electronics integration.

    • Developing new solutions to optimize the energy efficiency and performance of systems mixing new technologies.

  • Team coordinator:

    • Dr. Fernando Arteche

  • Close collaboration with other groups involved in HEP detectors designs

    • SPAIN

      • CNM & IFCA

    • Abroad

      • Max-Plank Institute, CERN, Aachen , FERMILAB & SLAC


Ita hep group1
ITA - HEP group system

  • EMC - Facilities

    • Faraday cage

    • One semi-anechoic chamber

    • Spectrum analyzers

    • Current probes & Antennas

    • Surge & Burst & ESD generators

    • Amplifiers (kHz-GHz)

  • Electronic Lab - Facilities

    • Boards designs

    • Power supplies

    • Programming controllers

  • Sofware

    • Pspice

    • Matlab

    • COMSOL


Ita hep group2
ITA - HEP group system

FUTURE …. New 10m Semi- Anechoic Chamber !!!!

(Inves. 1.5 M€- 2012) – APPROVED