1. Activités du groupe LC Détecteur au LAPP
C. ADLOFF
17 Octobre 2011

2. Evolution des activités « Simu »
HCAL extensive studies with analog or digital/semi-digital readout : J. Blaha
Optimization of multi-thresholds for better resolution and linearity (continued by D. Girard)
Optimization of the SiD HCAL design
Projective and tailed geometries
Impact of the cracks on HCAL performance
Energy containment and leakage corrections
2 Notes CALICE-SiD-LAPP tech note
Impact of dead zones on the response of a hadron calorimeter with projective and non-projective geometry
Optimization of the hadron calorimeter geometry for the SiD detector

3. Evolution des activités « Simu »
CLIC Detector effort  CLIC CDR
Heavy Slepton analysis : J.J. Blaising
mSUGRA parameters for SUSY benchmarks
Ex: e⁺+e⁻ → μ̃R⁺+μ̃̄R ˉ → χ̃⁰₁ μ⁺ + χ̃⁰₁ μˉ 2L topology
Ex: e⁺+e⁻ → ẽL ⁺ + ẽL ˉ→ χ̃⁰₂ e⁺ + χ̃⁰₂ eˉ → χ̃⁰₁ h⁰ e⁺ + χ̃⁰₁ h⁰ eˉ 2L 4J topology
full simulation and reconstruction, with overlay of beam-beam induced background: ->h, assuming ∫L=2 ab⁻¹.
LCD-note et LCWS2011

4. Evolution des activités « Simu »
Top et RHN :
partie physique de la thèse A. Espargilière
Recherche d’un dans avec @CLIC
Sélection d’événements
Efficacité 68.6%, Pureté 72.9%

5. Evolution des activités « Simu »
Top et RHN :
Extraction du signal Z′ d’un lot t¯
Observabilité du Z′ si mZ′ ≤ 500GeV
Méthode de mesure d’une particule lourde invisible
Résolution sur mZ′ < 10%, optimum vers mZ′ = 300GeV/c2

6. Evolution des activités R&D
New 1m2 chamber
Improved mechanical design
New readout electronics
August 2011 beam tests
Preliminary results
October 2011 beam tests
2010
2011
GASSIPLEX
(HARDROC1)
(DIRAC)
HARDROC2
HARDROC2b
MICROROC
6x16 cm2
(8x8 cm2)
(8x32 cm2)
32x48 cm2
1x1 m2
32x48 cm2
1x1 m2
Shaping 1.2 μs
97 % efficiency
< 1.12 multiplicity
Shaping 20 ns
50 % efficiency
< 1.06 multiplicity
Shaping ns
98 % efficiency
< 1.1 multiplicity

7. Improved Mechanical Design
Gas tightness made by ASU and mask one side, drift plate on top side
Base plate screwed instead of glued
Access to ASIC side of ASUs
Eventually get rid of Fe baseplate
For WHCAL prototype: less steel
For ILC steel HCAL : improve absorber stiffness (+2mm for the absorber plate)
ASU mask thickness reduced from 3 to 2 mm → Thinner chamber (7mm instead of 8 mm active thickness)
Easier access to DIF connectors and LV & HV patch panel when chambers are inserted inside structures

8. New Readout Electronics
New readout ASIC : MICROROC
New PCB routing
Improved EMC : minimize detector/digital signals X-talk
Chip bypass correctly routed
Analog readout
Improved PCB spark protection network
Faster
More compact

9. New Readout Electronics
MICROROC:
developed in collaboration between LAPP & LAL/Omega
Details in R. Gaglione previous talks Feb, May
From HARDROC2 to MICROROC:
Same digital part : pin-to-pin compatibility
Current preamp replaced by charge preamp
Additional spark protections inside silicon
Fast shaper (~20ns) replaced by 2 tunable shapers ( ns)
8 bit preamp gain corrections replaced by 4-bits pedestal corrections
MICROROC Status:
341 chips produced
339 tested, 91,4 % yield (enough to equip two 1m2 prototypes plus 1 ASU for laboratory tests)
13 ASUs equipped and calibrated
Chip threshold + channel offset
→ virtually 1 threshold / channel
CALICE Meeting, Heidelberg

10. MICROROC ASU tests in test box
Study of chamber properties with an 55Fe X-ray source
Cosmics :event display for the vertical chamber position

11. MICROROC 1m2 assembly
June 2011

12. August 2011 Beam Tests Preliminary tests
Pedestal alignments (cf Maximilien previous talk)
Cosmics at LAPP in July
Beam tests 3rd to 22nd August 2011 at CERN SPS H4
3rd to 9th August : CALICE the most fruitful period
9th to 22nd August : RD51 with 3 other users

13. August 2011 Beam Tests Setup 3 Scintillators: for triggering
Pad telescope
LAPP
3 analog readout MICROMEGAS 6x16 cm2
Pads size: 1cm2
Conversion gap: 3 mm
Strip telescope
NCSR Demokritos, National Technical University of Athens
3 analog readout MICROMEGAS 2.4x2.4 cm2
Strips length: 10 cm
Strip pitch: 250 m
Conversion gap: 7 mm
1m2 MICROMEGAS Chamber with 144 MICROROCs
Gas used : 95% Ar, 2% isobutane and 3% CF4  not flammable.

14. August 2011 Beam Tests Acquisition telescopes 1m2 MICROMEGAS:
VME ADC + Sequencer
CENTAURE DAQ
1m2 MICROMEGAS:
3 (interDIF + DIF)
LAPP LabView DAQ
Hardware Synchronization with busy handshake between VME sequencer and CCC : acquisition rate up to 200 Hz

15. August 2011 Beam Tests

16. August 2011 Beam Tests
The first beam profile: 4/8/11 at 8pm  fast and efficient start
Muon Beam
Telescope
pad chambers
Telescopes and scintillators structure rotated by 90 to increase coincidence events
Hits in coincidence
with triggers from scintillators

17. August 2011 Beam Tests Beams During more than 2 weeks: Data on disk
Muons: beam core on 3x9 pads
Pions: high intensity beam and focused on 2 pads (RD51 users)
During more than 2 weeks:
Less than 10 HV trips on the m2 even in high intensity pion beam
No MICROROC damage due to sparks
Data on disk
Drift voltage scan (405V to 570V)
Mesh voltage scan (300V to 420V) for different shaping time (75ns, 115ns, 150ns 200ns)
Position scan:  20 positions
Threshold scan
Analog readout (after hold adjustment)
Different angle of beam incidence (0, 30, 60)
Pion showers for different mesh voltage and thresholds.
MICROROC tests:
Ramfull mode
With/without one stage of the preamplifier.

18. Very preliminary results
Mesh voltage scan (300V to 420V) for different shaping time (75ns, 115ns, 150ns, 200ns)
DAC0 threshold ~ 0.7 fC
Muon Beam
Standard settings : Vmesh = 390V Vdrift=480V

19. Very preliminary results
Mesh voltage scan (300V to 420V) for different shaping time (75ns, 115ns, 150ns, 200ns)
DAC0 threshold ~ 0.7 fC
Muon Beam

20. Very preliminary results
Threshold scan
Muon Beam
2008 beam tests
(analog readout, threshold cut offline)

21. Very preliminary results
Analog readout
Pion Beam
DAC0 = 0.7 fC
DAC1 = 20 fC = 1 MIP
DAC2 = 100 fC = 5 MIP
ADC counts
 Allows to fix and monitor the digital thresholds!

22. Very preliminary results
Different angle of beam incidence (0, 30, 60)
Muon Beam 0
30
60

23. Very preliminary results
Pion showers for different mesh voltages and thresholds.
20 cm iron block
Medium and high thresholds adjusted for the different Vmesh voltages.

24. Very preliminary results
Pion showers for different mesh voltages and thresholds.
20 cm iron block
Medium and high thresholds adjusted for the different Vmesh voltages.

25. Very preliminary results
Pion showers for different mesh voltages and thresholds.
20 cm iron block
Medium and high thresholds adjusted for the different Vmesh voltages.

26. Very preliminary results
MICROROC tests in Ramfull mode
Data taken also outside the spill
10 noisy channels out of 9216 (6 are cut in hardware, 4 in software)
Threshold about 0.7 fC from pedestal
Muon Beam
Ramfull mode ok
All data from detector.
No time cut applied.
 Very quiet Detector!

27. October 2011 Beam Tests Improve setup
First test with CALICE DAQv2 at LAPP on September the 28th !
Succeed to configure MICROROC chip and get data from MICROROC and HR boards simultaneously on the September 30
Beam tests 3rd to 12th October 2011 at CERN SPS H8

28. October 2011 Beam Tests Ready for insertion in CALICE-DAQv2 on the 6th
Very unstable DAQv2 untill 10th late night
First insertion in CALICE-DAQv2 on the 11th  no time to debug, no data taken
Waiting for insertion in the DAQv2:
Improve our knowledge on noisy channels
HV SCAN
80 GeV/c pions ~ 50k evts
60 GeV/c pions ~600k evts
100 GeV/c pions ~130k evts
120 GeV/c pions ~120k evts
150 GeV/c pions ~ 70k evts
180 GeV/c pions ~ 60k evts

29. Conclusion pour 2011 MICROMEGAS m2
Bulk process with embedded chips: ok
Mechanics : ok
Tests beam results
Electronic Readout: ok
Nearly no Vmesh trips. Very quiet detector
Performances compatible with HCAL requirements
MICROMEGAS Framework : great tool for analysis
A second chamber is constructed
CLIC CDR
Ambroise Espargilière thesis
2011 : goals accessible within the funding allocated are achieved

30. Le groupe FTE Phys Méca Elect Info TOT 2006 0.8 0.6 0.5 0.1 2.0 2007
0.7
0.4
1.8
2008
1.9
2.95
(1)
5.55
2009
4.6
(3)
5.2
12.1
(4)
2010
1.63
3.82
(0.98)
0.78
10.83
(3.98)
2011
1.42
3.3
(0.93)
0.73
10.05
(3.93)
1 doctorant
(contribution des non permanents)

31. Le groupe en 2011
Physicists C. Adloff, J. Blaha, J.-J. Blaising, M. Chefdeville, A. Espargilière (PhD), Y. Karyotakis
Electronics Engineers and Technicians A. Dalmaz (100%), C. Drancourt (90%) , R. Gaglione (42%), J. Prast (5%), G. Vouters (93%)
Mechanics Engineer and Technicians N. Geffroy (28%), F. Peltier (90%), J.P Baud (24%)
Software J. Jacquemier (73%)

32. Budget 2011
Alloué
20k FP
17k MP
18k CERN
Report 2010
27k
Etat au (nouveau : outillages méca et matériel info à la charge des groupes)
167 FP
428 MP
? CERN (pas d’accès au compte)

33. Future Larger production could be launched in 2012
Funding for studies of bulk-MICROMEGAS with resistive layer : ANR SPLAM
1 postdoc + test prototypes
Continue DAQv2 developments for CALICE
Continue effort for CLIC detector : J.J. Blaising
CLIC summary document for accelerator, physics and detectors
preparation of a common Linear Collider statement from ILC and CLIC for the European Strategy update in 2013

34. Demande 2012 Mission 50k Conférences, réunions de collaboration 40k
Tests faisceau 10k  
 FP 162k
Construction de 5 plans MICROMEGAS de 1 m2 102k 
  5 plans de MICROMEGAS = 100k
  Tests des chips MICROROC = 2k
R&D MICROMEGAS 30k
  bulk-MICROMEGAS oriente protection contre les sparks = 10k
  Chip CLIC = 20k
Services (BT, HT, Gas) pour 10 m2  30k

35. Aknowledegments LAPP LC Detector group Collaborators Catherine Adloff
Jan Blaha
Jean-Jacques Blaising
Maximilien Chefdeville
Alexandre Dalmaz
Cyril Drancourt
Ambroise Espargilière
Renaud Gaglione
Damien Girard
Nicolas Geffroy
Jean Jacquemier
Yannis Karyotakis
Fabrice Peltier
Julie Prast
Guillaume Vouters
Collaborators
David Attié
Enrique Calvo Alamillo
Khaled Belkadhi
Vincent Boudry
Paul Colas
Christophe Combaret
Rémi Cornat
Paul Dauncey
Franck Gastaldi
Mary-Cruz Fouz Iglesias
Wolfgang Klempt
Lucie Linsen
Rui de Oliveira
Dieter Schlatter
Nathalie Seguin
Christophe de la Taille
Stergios Tsigaridas
Yorgos Tsipolitis
Wenxing Wang

36. Back up

37. Slepton at CLIC (LCWS 2011)
For μ± and e± final states, Pt > 4 GeV cut remove γγ->h background preserving the energy resolution.
For e±4J final states, detector timing information must be included to remove γγ->h background, preserve the lepton energy resolution and the di-jet mass resolution. It requires detector time stamping capability of ~ 1 nsec and readout window ~ 10 nsec.
With 2 ab¯¹ the μ̃R , ẽR, ẽL and ν̃e cross section are determined with a relative statistical uncertainty of ~ 2.6% , 0.7%, 8% and 2.4%.
The μ̃R , ẽR, ν̃e, χ̃⁰₁ and χ̃±₁ masses are measured with a relative statistical accuracy of~ 0.6%, 0.3%, 0.4%, 1% and 0.6%
Knowledge of the luminosity spectrum is essential for the mass fit.
To establish sleptons chirality requires beam polarization
To contribute to EU strategy document, ECM~ 1.5 TeV, new benckmark

38. Slepton - CLIC CDR