Calorimeter Primary Constants

Category CALprim

Updated 15 May 2001, by Grove and Chekhtman, or Chekhtman and Grove

Updated 31 May 2001, by Grove
 

Name

Value

Description

crystalMat

CsI

Crystal Material

diodeMat

Si

Diode Material

CALCellMat

CarbonFiber

CAL composite cell material

PCBMat

Fiberglass

Material for printed circuit boards

nLayer

8

Number of layers of CAL CsI crystals

nCsIPerLayer

12

Number of crystals per layer within a tower

diodeXsize

0.30  mm

Depletion depth of diode (Si)

diodeLYSize

14.5  mm

Width of large diode (Si)

diodeSYSize

2.4  mm

Width of small diode (Si)

diodeZSize

10.5  mm

Height of diode (Si)

CsILength

333.0  mm

Length of a CsI crystal

CsIWidth

26.714  mm

(Transverse) width of a CsI crytal

CsIHeight

19.9  mm

Height of a CsI crystal

diodeZOffset

0.9  mm

Y (transverse) offset of diode relative to crystal

diodeLYOffset

-2.55  mm

Z offset of large diode relative to crystal

diodeSYOffset

8.6  mm

Z offset of small diode relative to crystal

cellVertPitch

21.35  mm

Vertical pitch of CsI and cells

cellHorPitch

27.844  mm

Horizontal pitch of CsI and cells

cellVertWallThick

0.49  mm

Thickness of reflector and composite cell vertical walls (C)

cellHorWallThick

0.85  mm

Thickness of reflector and composite cell horizontal walls (C)

cellSideReinfThick

1.4  mm

Horizontal thickness of reinforcement on side of outermost cells (C)

sideWallThick

11.60  mm

Horizontal thickness of side compartment with electronics

outerWallThick

1.00  mm

Thickness of outer wall of electronics compartment (Al)

sidePCBThick

1.6  mm

Thickness of front-end printed circuit boards (fiberglass)

innerWallThick

1.00  mm

Thickness of inner wall of electronics compartment (Al)

cylSupportDiameter

10.00  mm

Diameter of cylindrical supports (Al)

cylSupportPitch

4

Horizontal pitch of supports in units of cellHorPitch

topFrameAl

16.00  mm

Vertical thickness of CAL top frame (Al)

topFrameWidth

22.00 mm

Width of top “picture frame” (Al)

topPlateC

2.00  mm

Vertical thickness of CAL top plate composite

frameStepsHeight

5.00, 5.00, 6.00 mm

Heights of steps top picture frame (Al)

frameStepsWidth

5.50, 5.10  mm

Widths of steps of top picture frame (Al)

bottomPlateC

4.00  mm

Vertical thickness of CAL bottom plate composite

bottomFrameAl

16.00  mm

Vertical thickness of CAL bottom picture frame (Al)

bottomFrameWidth

35.00 mm

Width of bottom “picture frame” (Al)

nBottomRibs

3

Number of ribs in bottom frame grid in one direction (X or Y)

bottomRibPitch

73.0 mm

Pitch of bottom plate ribs (Al)

bottomRibWidth

10.0 mm

Width of bottom plate ribs (Al)

bottomRibThick

12.0 mm

Thickness of bottom plate ribs (Al)

mountTabThick

15.0 mm

Thickness of CAL mounting tabs, CAL to grid (Al)

mountTabWidth

20.0 mm

Width of mounting tabs (Al)

CALModuleWidth

363.00  mm

Horizontal, face-to-face dimension of CAL module

CALModuleHeight

223.80  mm

Vertical, top-to-bottom dimension of CAL module