beam test results of tile/fiber em calorimeter and simulator construction status 2005/03/05 detector...

Beam test results of Tile/fiber EM calorimeter

and Simulator construction status

2005/03/05 Detector meeting @KEKNiigata University ONO Hiroaki

contents1. Beam test results of EM CAL2. Full simulator construction work

2005/03/05 Detector Meeting @ KEK 2

Beam test of Tile/fiber calorimeter

• Requirements for Linear collider calorimeter– Fine longitudinal segmentation– Fine transverse granularity– Required resolution

1%E15%/σ/E: EM

We made a prototype of fine segmented EM calorimeter and tested at the pi2 beam line In March 2004.


Beam test module setupTile size : 4cmx4cmx1mm with WLS fiberSampling ratio : Pb/Scinti = 4/1(Hardware compensated)Number of layers : 6 super-layer (1 S.L. = 4 layers) 17.1 X0

Read out : 16 ch Multi Anode PMT with WLS fiber


Mega-tile structure and beam line

Mega-tile structure 1mm scintillator thickness 25 tiles (5x5) per layer and connected on each corner. Tiles are separated with white plastic str

ips.

Energy : 1 to 4 GeVe/pi/muDC : trackingCherenkov :e/pi separation


Gain calibration scan• Use non-interacting particle

(MIPs) for the gain calibration

• Fit function : Landau-Like function• Fitting range : peak–3σ ～ peak+5σ

Relative error : ΔPH/PH ～ 2.0%


Energy profile and linearity

Deviation from the straight lineΔE/E < 2.0%


Energy resolution

3.5%E16.0%/σ/E

Beam hit position

( center tile )

Geant4 simulation include photon statistics agree the beam test data


Position resolutionResidual plot of DC hit position and center of gravity position at each tile center

Position resolution4GeV 3rd super-layer σx=5.4mm ± 0.3mmσy=4.5mm ± 0.3mm

1st 2nd 3rd

4th 5th 6th

Residual plot of x-axis


Position resolution vs energy, layer

Energy dependence :

4.9mmE5.0mm/σ x 5.0mmE4.5mm/σ y Best position resolution

achieved at shower maximum position

( At the 3rd super-layer )


Response mapping and uniformityLEGO and CONTOR plot of 2mm x 2mm mesh

response mapping at the center tile


Uniformity mapping along x-axis

Mesh size :1mm x 1cmFlat part(-1.5 ～ 1.5cm) Mean : 1.01 MIPs

Zoom up of center flat partUniformity : 1.66%(RMS)


Precise measurement at fiber position

0.5 x 5 mm mesh scan at the tile boundary

-1.8mm -1.7mm

No drops at the fiber position

Circle and square tilesare staggered in each super-layer

At the fiber position, scintillator thickness is only 0.2mm


Tiles corner response mapping

Good light containment inside of the fiber glove.Light sharing at four tiles connected part.


Summary• Linearity : 2.0%• Energy resolution : • Position resolution

σx=5.4mm ± 0.3mm σy=4.5mm ± 0.3mm

• Energy dependence of position resolution

• Uniformity : 1.66%(RMS)• Response mapping

– No significant drop at fiber position– Good light containment inside of the fiber grove

4.9mmE5.0mm/σ x 5.0mmE4.5mm/σ y

3.5%E16.0%/σ/E


Jupiter geometry construction

Detector geometry At the last year, no Muon detector and CAL cell structure in Jupiter

JUPITERJLC Unified

Particle Interactionand

Tracking EmulatoR

IO Input/Outputmodule set

URANUSLEDA

Monte-Calro Exact hits ToIntermediate Simulated output

Unified Reconstructionand

ANalysis Utility Set

Library Extention for

Data AnalysisMETIS

Satellites

Geant4 basedSimulator

JSF/ROOT basedFramework

MC truth generator Event Reconstruction

Tools for simulation Tools For real data


CAL partDefault setup of CAL

Lead-Scintillator sampling structureEM : 4cm x 4cm x 1mm tile 4mm-thick Pb (4:1 sampling ratio) 38 layer (27X0)•HAD : 12cm x 12cm x 2mm tile 8mm-thick Pb (4:1 sampling ratio) 130 layer (6.5λ0)Construction point

•Different EM and HAD tile size can set•Sandwich structure combination ( for X-Y scinti structure )

S. Yamamoto

(Y. Yamaguchi talk)


Muon Detector Part

GLD V1 version•Octagonal structure along Z-axis•Alternating alignment for diagonal•Three components

•front endcap ( inside of solenoid )•Endcap•Barrel

Absorber : IronActive layer : Air (Reserved some gas )

1st version of the Muon detectorused at ACFA at Taipei


Muon detector size of GLD V1

700

[cm]

375

430

530

845

450

•Larger inner radius of CAL, SOL•Longer solenoid length and z length


Current full geometry of Jupiter

Hit part also finished•MUDHit

•hit data at active layer•MUDPreHit

•hit data at MUD front•CALPostHit

•hit data at cal outer position

Now we are ready for the MUD data analysis


Preliminaly test of muon detector

μ-

γ

e-

10 muonsrandom direction injection100 events

Catch the muon at the front of MUD

PDG code

NHitVery preriminaly data!


Summary and the planNow we finish the installation of CAL and MUD part geometry (Still we need some debug)We can start basic check following using Muon detector

Forward region particle (Energy, PID)Muon ID generated inside of CAL (PID)Energy leakage from CAL (Energy, PID)

Debugging and coding analysis part of Satellites.

beam test results of tile/fiber em calorimeter and simulator construction status 2005/03/05 detector...

Documents

jupiterdetector meeting

axisdetector meeting

mmdetector meeting

rmsdetector meeting

superlayer detector

fiber grovedetector

center tiledetector

superlayer x