- BEMC
- EEMC
- ETOF
- FCS
- FGT
- FGT. . . . . . . . . . I N S T R U C T I O N S
- FGT. . . . . . . . . . P H Y S I C S
- FGT. . . . . . . . . . S I M U L A T I O N S
- FGT. . . . . . . . . H A R D W A R E -- D E T E C T O R
- FGT . . . . . . . . . . A N A L Y S I S
- FGT . . . . . . . . . . C A L I B R A T I O N
- FGT . . . . . . . . . . D O C U M E N T S
- FGT . . . . . . . . . . DAQ
- FGT . . . . . . . . . . M E E T I N G S
- FGT. . . . . . . . . . H A R D W A R E -- E L E C T R O N I C S
- FGT. . . . . . . . . . H A R D W A R E -- S L O W C O N T R O L S
- FGT. . . . . . . . . . P H O T O - - G A L L E R Y
- FGT. . . . . . . . . . S O F T W A R E
- FGT. . . . . . . . . . V A R I A
- FGT. . . . . . . . . . x -T R A S H (node for recycling)
- FPD & FMS & FPS
- FTPC
- FTT
- HLT
- L3
- PMD
- PP2PP
- RICH
- Roman Pot Phase II*
- SSD
- SVT
- Slow Controls
- TPC
- TRG
- Trigger Detectors
- VPD
- test
2 UPGR15+FGT as of May 2008
Updated on Wed, 2008-06-04 16:58. Originally created by balewski on 2008-05-29 17:08.
Under:
UPGR15 geometry was modified to match best guess of FGT geometry as of May 2008.
The active FGT area is : Z1=70,..., Z6=120cm, DZ=10 cm, Rin=11.5cm, Rout=37.5 cm
There is 1cm of additional dead material at Rin & Rout
Fig 1. Zvertex=0 cm, green= eta [1.06,2.0]. , red=eta[2.5,4.0]
Fig 2. Zvertex=+30 cm, green= eta [1.06,2.0]. , red=eta[2.5,4.0]
Fig 3. Zvertex=-30 cm, green= eta [1.06,2.0]. , red=eta[2.5,4.0]
Fig 4. Zoom in on 1 FGT disk. Detected particle enters from the left, 'active' gas volume has depth of 3mm (between magenta ad blue lines), FGT strips collect charge on the 1st green line.
(units in cm)
Zstart = 70.0 ! starting position along Z axis
Z = { 0.0, 10.0, 20.0, 30.0, 40.0, 50.0} ! Z positions for GEM front face
FThk = { 0.05, 0.05, 0.05, 0.05 } ! foil thicknesses inside GEM
SThk = { 0.3, 0.2, 0.2, 0.2 } ! support/spacing thicknesses
SR = 1.0 ! radial size for support
USED material:
* use aluminized mylar mixture instead of kapton
Component C5 A=12 Z=6 W=5
Component H4 A=1 Z=1 W=4
Component O2 A=16 Z=8 W=2
Component Al A=27 Z=13 W=0.2302
Mixture ALKAP Dens=1.432
* G10 is about 60% SiO2 and 40% epoxy
Component Si A=28.08 Z=14 W=0.6*1*28./60.
Component O A=16 Z=8 W=0.6*2*16./60.
Component C A=12 Z=6 W=0.4*8*12./174.
Component H A=1 Z=1 W=0.4*14*1./174.
Component O A=16 Z=8 W=0.4*4*16./174.
Mixture G10 Dens=1.7
Block FGDO is the mother volume of the individual GEM disks
Component Ar A=39.95 Z=18. W=0.9
Component C A=12.01 Z=6. W=0.1*1*12.01/44.01
Component O A=16. Z=8. W=0.1*2*16./44.01
Mixture Ar_mix Dens=0.0018015
Block FGFO describes the GEM foils
Material ALKAP
Block FGIS describes the inner support or spacer
Material G10
Fig 4b FGT disk front view in Geant
Fig 5. 1st FGT disk by Jim K. as of April, 2008
Fig 6. 3 FGT disks by Jim K. as of April, 2008
Fig 7 Realistic geometry from Jim K. as of May, 2008
Fig 8 Disk material budget, from Doug, as of May, 2008
Fig 9 APV location , from Doug, as of May, 2008
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