FOCAL in ALICE NISER Interest - PowerPoint Presentation

Slide1

FOCAL in ALICE

NISER Interest

Varchaswi K S Kashyap*

On behalf of NISER group

Facilities at NISER

Gas mixing system:

5 channel gas mixing system (Freon,

iso-butane, SF6, Ar and CO2). Supply gas to 8 detectors simultaneously with a maximum flow rate of 50 sccm per channel. RPC R & D in progress for CBM and MPGD R & D to be started soon. Clean room: ISO-5 or Class 100 clean room with an area of approx. 200 sq.ft for MPGD related R & D.Electronics: VME and NIM electronics with TDCs, QDCs, digitizers (PSD and PHA firmware), amplifiers, discriminators etc for detector testing and characterization.X-ray irradiation enclosure with Amptek X-ray source - under procurement.5 node HPC cluster

Pictures of

Cleanroom

RPC under test with

NIM electronics

5 channel gas mixing

system

FOCAL

FOCAL is proposed to be placed at z=7 m outside the magnet in ALICE

Psuedorapidity

range: 3.3<η<5.3It would consist of two parts: FOCAL-E: electromagnetic calorimeterSi-W based calorimeter (24 layers)FOCAL-H: Hadronic calorimeterUnder discussion

Forward calorimeters used / in use in experiments

Experiment

Technology

η rangeAbsorption / interaction lengthResolution(150 to 200 GeV beam energy)

FPC@ZEUS

Scintillator + Pb absorber4<

η<55

λ

a

CDF @ TevatronScintillator + Fe absorber

1.1<

η

<3.5

6.8

λintPSD @ NA61Scintillator + Pb absorberNA5.6 λaFCAL @ ATLASLAr, Quartz Fibre and metal tubes3.1<η<4.910 λintHF @ CMSQuartz fibre matrix in SS block3<η<510 λint

More details about calorimeter design of each experiment

in

backup

Where can NISER and collaborators can contribute?

Design and simulation of FOCAL Hadron calorimeter –

NISER interest

Physics simulation of FOCAL-E/H - ???Assembly, testing and characterization of detectors – NISER interestTesting of electronics - ???THANK YOUFOCAL-H design on similar lines?

People at NISER

Prof.

Bedangadas

Mohanty

(

Staff)

Experience:

WA98@CERN, STAR@RHIC,

ALICE@CERN

Interest and expertise:

Physics analysis and simulations, QCD Critical Point and Phase Diagram

Current responsibilities:

Part of STAR BES-II program, ALICE; Professor and Dean of Faculty Affairs NISER, Teaching and India-CERN Task Force Govt. of India, CBM@FAIR,Dr. Varchaswi K S Kashyap (Staff)Experience: INO and reactor neutrino experimentInterest and expertise: Gas detectors, neutron detectors, Detector R & D and simulations Current responsibilities: R & D related to advanced gas detectors for EHEP experiments – RPC, GEM and neutron detectors for rare event experiments, CBM@FAIRDr. Ranbir Singh (Staff)Experience: ALICE @ CERNInterest and expertise: Physics analysis and simulations, Resonance productionCurrent responsibilities: ALICE @ CERN and CBM@FAIR Dr. Abhik Jash (Post-Doctoral Fellow)Experience: INO and CBM@FAIRInterest and expertise: Detector hardware (Gas detectors) and simulationsCurrent responsibilities: CBM@FAIR

Mr.

Subasha

Rout (Technician)

Current responsibilities:

Setting up and maintenance of detector lab

Dr.

Mriganka

Mouli

Mandal

(

Post-Doctoral Fellow)

Experience:

ALICE@CERN, STAR@RHIC

Interest and expertise

:

Physics analysis and simulations, Detector simulation,

Forward meson spectrometer

STAR@RHIC

Current responsibilities:

STAR@RHIC

BACKUP

Scintillator based calorimeters

ZEUS (HERA) FPC (Forward Plug Calorimeter)

Scintillator (SCSN81T2 from Kuraray) + Pb absorber

Thickness: 1.5 cm Pb, 0.26 cm scintillator, 0.04 cm tyvek paperEMC (longitudinal length = 18 cm) followed by HAC (longitudinal length = 90 cm)Radiation Length (total) = 159.5X0Absorption Length (total) = 5.4 λ4<η<5PMT readout (Hamamatsu R5600U)

Scintillator based calorimeters contd.

PSD (Projectile Spectator Detector)

NA61/SHINE experiment CERN

Scintillator + Pb absorber

Thickness:

Each module contains 60 layers of 1.6 cm lead plates and 0.4 cm scintillator tiles

Total absorption Length = 5.6

λ

MAPDs (Micro Pixel Avalanche Photo Diodes) replaced by MPPCs (Micro Pixel Photon Counters)

Scintillator based calorimeters contd.

CDF @FERMILAB

Scintillator (Polystyrene based) + Fe absorber

Thickness: 0.45 cm Pb + 0.4 cm scintillator(EM), 5 cm Fe + 0.6 cm scintillator (HAD)EM (longitudinal length = 35.7 cm) followed by Hadronic (longitudinal length = 160 cm)Radiation Length (EM only) = 23.2X0Interaction Length (HAD only) = 6.8 λint1.3<η<3.5

Quartz fibre, Liquid argon based calorimeter

ATLAS @

CERN (Cerenkov)

Three FCAL modules and 1 PlugDimension: Length Total = 1.8 mRadius = 0.45 m3.1<η<4.9Rods: FCAL1 copper, FCAL2 and FCAL3 TungstenTube: FCAL1,FCAL2, FCAL3 copperFilling matrix : FCAL1 Copper, FCAL2 and FCAL3 HMFCAL ~5m from the Interaction point

Quartz matrix based calorimeter

CMS @

CERN (Cerenkov)

Cylinder of Stainless steel: 12.5 cm < r < 130 cmAzimuthally divided into 18 sectors (20

o

)

Front face ~11 m from

the interaction point

Longitudinally

divided into 2 parts : 22 cm (EM) and 143 cm (HAD)

Quartz fibres run parallel

to the beam pipe

3<

η

<5

References

Performance of the ZEUS forward plug calorimeter,

NIM-A,

453, Issues 1–2, 11 October 2000, Pages 230-232Operation and performance of the CDF calorimeters, 2009 J. Phys.: Conf. Ser. 160 012007Performance of hadron calorimeter (Projectile Spectator Detector – PSD) at NA61/SHINE experiment, S.Morozov , The 3rd ICPPA, 2-5 October 2017, NRNU/MEPhIHadron calorimeter with MAPD readout in the NA61 / SHINE experiment,  arXiv:1205.4864v2 [physics.ins-det]Energy calibration of the ATLAS Liquid Argon Forward Calorimeter, J P Archambault et al 2008 JINST 3 P02002The ATLAS Forward Calorimeter, A Artamonov et al 2008 JINST 3 P02010Design, performance, and calibration of CMS forward calorimeter wedges, The CMS-HCAL Collaboration, Eur. Phys. J. C 53, 139–166 (2008)