| Name | Value | Description |
| xNum |
4 |
Number of towers in x. |
| yNum |
4 |
Number of towers in y. |
| eTowerCAL |
0 |
Id field value for CAL (within towers) |
| eTowerTKR |
1 |
Id field value for TKR (within towers) |
| eTowerGrid |
2 |
Id field value for grid (within towers) |
| eLATTowers |
0 |
id field for towers (within LAT) |
| eLATACD |
1 |
id field for ACD (within LAT) |
| eLATGrid |
2 |
id field for pieces of grid not within tower envelopes |
| eLATBlanket |
3 |
id field value for pieces of blanket |
| eLATSpacecraft |
4 |
id field value for spacecraft |
| eLATPanelYNeg |
5 |
id field value for solar panel on Y- side |
| eLATPanelYPos |
6 |
id field value for solar panel on Y+ side |
| eSolarPanelSi |
0 |
id field value for Si part of a solar panel |
| eSolarPanelCore |
1 |
id field value for core part of a solar panel |
| eSolarPanelRod |
2 |
id field value for rod part of a solar panel |
| eMeasureX |
0 |
id field used for TKR Si and CAL layers |
| eMeasureY |
1 |
id field used for TKR Si and CAL layers |
| eCenter |
0 |
one of seven possible values for fBorderCmp id field |
| eRight |
1 |
one of seven possible values for fBorderCmp id field |
| eTop |
2 |
one of seven possible values for fBorderCmp id field |
| eLeft |
3 |
one of seven possible values for fBorderCmp id field |
| eBottom |
4 |
one of seven possible values for fBorderCmp id field |
| eFarTop |
5 |
one of seven possible values for fBorderCmp id field |
| eFarBottom |
6 |
one of seven possible values for fBorderCmp id field |
| eDTypeNone |
0 |
Possible (in fact, default) value for detectorType attribute of
logical volume |
| eDTypeTKRSi |
1 |
Tracker Si detector type |
| eDTypeCALXtal |
2 |
CAL CsI
crystal detector type |
| eDTypeCALDiode |
3 |
CAL diode detector type |
| eDTypeACDTile |
4 |
ACD tile detector type |
| eDTypeACDRibbon |
5 |
ACD ribbon detector type |
| Name | Value | Description |
| CALnLayer |
8 |
Number of layers of CAL CsI crystals |
| nCsIPerLayer |
12 |
Number of crystals per layer within a tower |
| nCsISeg |
12 |
Number of segments in which to divide crystals for integrating hits |
| CALnBottomRibs |
3 |
Number of
ribs in bottom frame grid in one direction (X or Y) |
| eXtal |
0 |
idField value for CAL cell cmp field (the CsI crystal) |
| eDiodeMSmall |
1 |
idField value for CAL cell cmp field diode(minus, small) |
| eDiodePSmall |
2 |
idField value for CAL cell cmp field diode(plus, small) |
| eDiodeMLarge |
3 |
idField value for CAL cell cmp field diode(minus, large) |
| eDiodePLarge |
4 |
idField value for CAL cell cmp diode(plus, large) |
| eCellRight |
5 |
one of 4 idField values for CAL cell wall in fCALCellCmp field. |
| eCellTop |
6 |
one of 4 idField values for CAL cell wall in fCALCellCmp field. |
| eCellLeft |
7 |
one of 4 idField values for CAL cell wall in fCALCellCmp field. |
| eCellBot |
8 |
one of 4 idField values for CAL cell wall in fCALCellCmp field. |
| eWrapRight |
9 |
one of 4 idField values for CAL wrap in fCALCellCmp field. |
| eWrapTop |
10 |
one of 4 idField values for CAL wrap in fCALCellCmp field. |
| eWrapLeft |
11 |
one of 4 idField values for CAL wrap in fCALCellCmp field. |
| eWrapBot |
12 |
one of 4 idField values for CAL wrap in fCALCellCmp field. |
| Name | Value | Description |
| CALTransverseStayClear |
364 mm |
Transverse dimension of
CAL Stay Clear envelope from LAT-DS-00038-2 |
| CALVertStayClear |
224.3 mm |
Z-dimension of CAL
Stay Clear envelope from LAT-DS-00038-2 |
| diodeX |
0.3 mm |
Depletion depth of diode Si
|
| diodeLY |
14.5 mm |
Width of large diode Si
|
| diodeSY |
2.4 mm |
Width of small diode Si
|
| diodeZ |
10.5 mm |
Height of diode Si
|
| CsILength |
326 mm |
Length of a CsI crystal as of 30May02
|
| CsIWidth |
26.7 mm |
(Transverse) width of
a CsI crytal. Changed from 26.714mm on 18 June, 2003. |
| CsIHeight |
19.9 mm |
Height of a CsI crystal
|
| diodeZOffset |
0.55 mm |
Z offset of diodes relative to
crystal. Changed from .9 mm 18 June, 2003. |
| diodeLYOffset |
-2.6 mm |
Y (transverse) offset of
large diode relative to crystal. Changed from -2.55 mm on 18 June, 2003 |
| diodeSYOffset |
8.025 mm |
Y offset of small diode relative
to crystal. Changed from 8.6 mm on 18 June, 2003. |
| cellVertPitch |
21.35 mm |
Vertical pitch of CsI and
cells |
| cellHorPitch |
27.84 mm |
Horizontal pitch of CsI
and cells. Changed from 27.844 mm on 18 June, 2003. |
| CsIWrapThick |
0.0065 mm |
Thickness of crystal wrap
(reflector VM2000), as of 18 June, 2003. |
| cellVertWallThick |
0.45 mm |
Thickness of
composite cell vertical walls (C) [only. Before 18 June, 2003, also
includedreflector]
|
| cellHorWallThick |
0.85 mm |
Thickness of
composite cell horizontal walls (C) |
| cellSideWallThick |
1.685 mm |
Thickness of vertical cell
wall for outermost cells in each layer. New constant, first defined
18 June, 2003 |
| cellTopWallThick |
2.43 mm |
Thickness of horizontal cell wall
above top layer. New constant, first defined 18 June 2003. |
| cellBottomWallThick |
4.43 mm |
Thickness of horizontal cell
wall below bottom layer. New constant, first defined 18 June 2003. |
| CALSideWallThick |
12 mm |
Horizontal thickness
of side compartment with electronics. Changed from 11.6 mm as of
18 June, 2003. |
| CALGridFrameGap |
1.5 mm |
Minimum gap between
top of CAL (frame) and bottom of grid flange. 3 Sept. 2003 |
| CALSideWallInnerThick |
1 mm |
Horizontal thickness
of inner wall within (largely hollow) side wall |
| CALSideWallOuterThick |
0.8 mm |
Horizontal thickness
of outer wall within (largely hollow) side wall. Changed from 1.0 mm as
of 18 june, 2003. |
| CALSideWallPCBThick |
1.6 mm |
Horizontal thickness
of PCB within (largely hollow) side wall |
| CALInnerWallPCBGap |
3.7 mm |
Gap between CAL closeout and PCB
layer of side wall |
| CALModuleWidth |
363 mm |
Horizontal, face-to-face
dimension of CAL module (presumably both X and Y) |
| CALModuleHeight |
222 mm |
Vertical, top-to-bottom
dimension of CAL module. Changed from 223.8 mm as of 18 June, 2003. |
| CALCylSupportDiameter |
10 mm |
Diameter of
cylindrical supports (Al) |
| CALCylSupportCellDelta |
4 |
Number of
cells between adjacent (in the same layer) cylindrical supports |
| CALFrameSideThick |
8 mm |
Thickness of CAL frame sides
|
| CALTopFrameZ |
16 mm |
Thickness of top of
CAL frame (Al) |
| CALBottomFrameZ |
14 mm |
Thickness of bottom of
CAL frame (Al) Changed 4 Sept. 2003 from 16.0 (ref: Sasha) |
| CALTopFrameWidth |
16.7 mm |
Width of top picture
frame. Changed from 22 to 16.7 19 June 2003.(Al) |
| CALBottomFrameWidth |
35 mm |
Width of bottom picture
frame (Al) |
| CALTopPlateZ |
2.43 mm |
Vertical thickness of CAL
top plate composite. Changed from 2.0 mm as of 18 June, 2003. |
| CALBottomPlateZ |
4.43 mm |
Vertical thickness of CAL
bottom plate composite. Changed from 4.0 mm as of 18 June, 2003. |
| CALBottomRibPitch |
73 mm |
Pitch of bottom plate
ribs (Al) |
| CALBottomRibWidth |
10 mm |
Width of bottom plate
ribs (Al) |
| CALBottomRibThick |
12 mm |
Thickness of bottom plate
ribs (Al) |
| CALMountTabThick |
15 mm |
Thickness of CAL mounting
tabs, CAL to grid (Al) |
| CALMountTabWidth |
12 mm |
Width of CAL mounting
tabs |
| CALCloseoutLen |
338 mm |
Transverse length of innermost
components of CAL side wall, equal to gap between opposing closeout
walls. Added as primary 24 June 2003 |
| CALTopFrameUpperWidth |
13.2 mm |
Frame width for upper
of two top frame pieces. 19 June 2003 |
| CALTopFrameLowerWidth |
7.5 mm |
Frame width for lower
of two top frame pieces. 19 June 2003 |
| CALTopFrameLowerZ |
10 mm |
Frame height for lower
of two top frame pieces. 19 June 2003 |
| Name | Value | Description |
| TKRTransverseStayClear |
372 mm |
Tranverse dimension of
TKR Stay Clear envelope from LAT-DS-00038-2 |
| TKRVertStayClear |
640 mm |
Z dimension of
TKR Stay Clear envelope from LAT-DS-00038-2 |
| SiThick |
0.4 mm |
Si thickness |
| coreThick |
27.92 mm |
Thickness of core material
in all trays except the bottom and top |
| coreThickBot |
36.535 mm |
Core thickness for
top tray (20Jun03) |
| coreThickTop |
33.995 mm |
Core thickness for
top tray (20Jun03) |
| TKRCloseoutWidth |
5 mm |
Width of closeout
walls. Last modified 2aug02 |
| glueSiThick |
0.15 mm |
Thickness of glue
between Si and bias plane |
| glueCoreThick |
0.075 mm |
Thickness of glue between
core (or closeout) and something else (15oct01) |
| glueDefThick |
0.1 mm |
Default glue thickness,
when neither Si nor core is involved (15oct01) |
| convThickReg |
0.105 mm |
Thickness of conversion
material in "regular" layers in mm |
| convThickSup |
0.723 mm |
Thickness of conversion
material in super-GLAST trays in mm (as of 15 oct 2001) |
| faceThick |
0.2 mm |
Face sheet thickness
for all but super-glast tray and bottom tray (as of 15oct01) |
| faceSupThick |
0.29 mm |
Face sheet thickness
for super-glast trays and bottom tray (15oct01) |
| biasPlaneThick |
0.1 mm |
Thickness of bias
plane (15oct01) |
| tray0Gap |
2.05 mm |
Gap above bottom tray
modified 21jun03 |
| trayNoCnvGap |
2.13 mm |
Gap above non-bottom
no-converter trays |
| traySuperGap |
2.127 mm |
Gap above super-glast
trays |
| trayRegGap |
2.125 mm |
Gap above regular trays. Last
modified 2aug02 |
| TKRTraysTotalZ |
627.465 mm |
Height of a tracker tower.
(From spreadsheet, 21jun03 |
| TKRFootZ |
4.5 mm |
Height of foot between bottom of bottom tray
and grid |
| ssdGap |
0.025 mm |
gap between Si dies within a ladder
(15oct01) |
| SiWaferSide |
89.5 mm |
Length and width of Si wafer |
| SiWaferActiveSide |
87.552 mm |
Length and width of active
area on a wafer |
| faceWidth |
360.6 mm |
X and y width of face sheet
(15oct01) |
| TKRElectGap |
4.2 mm |
Distance between wall
and panel edge (each edge) |
| ladderGap |
0.2 mm |
gap between ladders |
| MCMHeight |
23 mm |
Height of tracker MCM boards |
| MCMThick |
1.1 mm |
Thickness of tracker MCM
boards |
| MCMGap |
0.1 mm |
Gap between MCM board and closeout
|
| TKRWallThick |
1.5 mm |
Thickness of tracker
walls |
| TKRWallLength |
371.45 mm |
Outer dimension of square
formed by tracker walls (Z cross-section)
Last modified 2aug02 |
| Name | Value | Description |
| ACDTransOuterSC |
1796 mm |
Maximum transverse outer extent
of ACD (from LAT-DS-00038) |
| ACDTransInnerSC |
1515.5 mm |
Minimum transverse inner
envelope for ACD sides (from LAT-DS-00038) |
| ACDTransInnerSCflange |
1574 mm |
Minimum transverse inner
envelope for lower part of ACD sides (from LAT-DS-00038) |
| ACDVertSC |
1015 mm |
Max. delta Z from top to bottom of
ACD (from LAT-DS-00038) |
| topTileXEdge_l |
355 mm |
X dimension of outermost (in X)
top tiles, i.e., columns 0 and 4. Modified July '03
from 3-d model of 6-23-03 (was 300) |
| topTileXMid_l |
344 mm |
X dimension of tiles in columns
1 and 3. Modified July '03 from 3-d model of 6-23-03. Was 334. |
| topTileXCentral_l |
344 mm |
X dimension of central top tiles
(column 2) Modified July '03 from 3-d model of 6-23-03 (was 334) |
| topTileYEdge_l |
329.67 mm |
Y dimension of outermost (in y)
top tiles, i.e., rows 0 and 4. Modified July '03 from 3-d model of 6-23-03
(was 334) |
| topTileYMid_l |
332 mm |
Y dimension of tiles in rows
1 and 3. Modified July '03 from 3-d model of 6-23-03 (was 334) |
| topTileYCentral_l |
332 mm |
Y dimension of central top tiles
(row 2) Modified July '03 from 3-d model of 6-23-03 (was 318) |
| tileThickness |
10 mm |
Thickness of ACD tiles
*except* for top center tiles |
| tileCenterThickness |
12 mm |
Thickness of ACD tiles,
middle row of top only |
| topTileGap |
2 mm |
Worst-case (most thermal expansion)
transverse gap between tiles on the top. Revised Oct. 2002 to 3.5.
Revised again July '03;
use number from 3-d model 6-23-03 |
| topOverlap |
20 mm |
Width of overlap
of overlapped top tiles (changed from 10.0, as of Oct. 2002;
changed from 15 in July '03. Get 20 from 3-d model (6-23-03)) |
| topTileOuterZGap |
3 mm |
Gap in Z between top tile
in col. 0 (resp. 4) and its neighbor in col. 1 (resp. 3). From
3-d model (6-23-03) |
| topTileInnerZGap |
1.43 mm |
Gap in Z between top tile
in col. 3 and its neighbor in cols. 2 and 4. From
3-d model (6-23-03) |
| sideTileR0_dt |
840.14 mm |
Transverse displacement
of top row of side tiles, taken from 3-d model 6-23-03 |
| sideTileHeight0 |
366 mm |
Height of top row
of side tiles. From 3-d model (6-23-03) |
| sideTileHeight1 |
199.46 mm |
Height of 2nd row
of side tiles as simulated (no slant; no gaps or overlaps between
rows). |
| sideTileHeight2 |
150 mm |
Height of 3rd row
of side tiles as simulated (no slant; no gaps or overlaps between rows. |
| sideTileHeight3 |
135.35 mm |
Height of 4th row
of side tiles as simulated (no overlaps or gaps). True height from
3-d model 6-23-03 would be 155 |
| sideOverlap |
30 mm |
Distance side tiles
extend above topACD tile surface --- used for positioning.
(7/28/03) 3-d model 6-23-03 essentially agrees with this. |
| sideVerticalGap |
0 mm |
Vertical gap
between (rows of?) side tiles |
| sideHorizontalGap |
2 mm |
Horizontal
gap at the corners between adjacent sides of tiles (July 03; revised
according to 3-d model 6-23-03, from old value of 3.0) |
| sideTileTransLesser |
329.67 mm |
Transverse
dimension of one edge side tile tile per side: column 4 for
sides 1 and 4; column 0 for sides 2 and 3. From 3-d model (6-23-03)
top side row dimensions |
| sideTileTransGreater |
342.97 mm |
Transverse
dimension of one edge side tile tile per side: column 0 for
sides 1 and 4; column 4 for sides 2 and 3. From 3-d model
(6-23-03) top side row dimensions |
| sideTileTransMid |
332 mm |
Transverse
dimension of side tiles in columns 1,2 and 3. From
3-d model 6-23-03 |
| totalSideAvail |
52 mm |
Total amount of
space available for side section of ACD, including both tiles and
support structure. (1 Nov 2002 remarks: is this number still current?
In any case it's not used anywhere) |
| ACDSideCoreThickness |
25.4 mm |
Thickness (short
transverse dimension) of side support
structure for ACD, not including face sheets. As of Oct., 2002.
3-d model (6-23-03) has 25.42 |
| ACDTopCoreThickness |
50.8 mm |
Thickness of top support
structure for ACD, not including face sheets. As of Oct., 2002.
3-d model (6-23-03) has 50.83 |
| ACDTopCoreTrans |
1532.7 mm |
X and Y dimensions.
From 3-d model, 6-23-03
|
| ACDSideCoreZ |
674.12 mm |
Height of ACD side core from
3-d model, 6-23-03 |
| ACDSideCoreTrans |
1558.79 mm |
Long transverse dimension
(x or y) of ACD side core. From 3-d model, 6-23-03 |
| ACDFaceThickness |
0.508 mm |
Thickness of face sheets used
in ACD support structure, both top and sides. As of Oct., 2002.
3-d model (6-23-03) says .51. |
| ACDTopSupport_dz |
680.97 mm |
Displacement of top support
w.r.t. Ritz origin. From 3-d model (6-23-03) |
| ACDSideSupport_dt |
779.9 mm |
Transverse displacement of
side support, from 3-d model 6-23-03 |
| ACDSideSupport_dz |
369.12 mm |
Z-displacement of
side support, from 3-d model 6-23-03 |
| ACDSideSupport_dDovetail |
13.028 mm |
Small offset needed
for sides to dovetail around top support, from 3-d model 6-23-03 |
| PMTFiberGap |
41.6 mm |
Minimum distance between
outer edge of side support structure and inner edge of innermost
side tile. Side ribbons (as well as PMT fibers) may go in this gap |
| topTileSupportStandoff |
25.4 mm |
Minimum distance
between lowest top tiles and top of ACD support. Ribbons are placed
within this gap. |
| dovetailGap |
3.3 mm |
Distance between adjacent ACD sides
of tiles (one X-side and one Y-side). Updated for 3-d model 6-23-03.
Old value was 4.0. |
| ACDSideTopTileGap |
3.3 mm |
Transverse distance between
top edge tile and nearest side tile. From 3-d model 6-23-03. |
| ACDTileMaxZ |
772.6 mm |
Very top of top tiles in
columns 0 and 4, from 3-d model 6-23-03 |
| ACDTopSupportMaxZ |
707 mm |
Very top of top of ACD
support structure under top tiles in
columns 0 and 4, from 3-d model 6-23-03 |
| ribbonWidth |
14 mm |
Width of scintillating ribbon
(from 3-d model 6-23-03) |
| ribbonThickness |
5 mm |
Thickness of scintillating ribbon, confirmed 30 July 2003 |
| ribbonGap |
0 mm |
Distance between ribbon and the adjacent
top tile, as of Oct. 2002.
As of new 3-d model 6-23-03 old value of 2.5 caused overlap. With
no official blessing, try something smaller. According to model there
is no gap between ribbon and topmost tiles. |
| ribbonOverlap |
15 mm |
Amount X ribbon segment overshoots
tile edge of tile it's under. (This is a figment of the simulated
model. Real ribbons don't come in disconnected segments.) |
| Name | Value | Description |
| NADGridWebInner |
8 mm |
Full thickness of grid between
towers (not half-width) Verified against LAT-DS-01579 on 5 May 2004.
|
| NADGridWebOuter |
13 mm |
Thickness of grid on outside
towers.
Verified against LAT-DS-01579 on 5 May 2004. Correct for bulk of web;
lower bound for bottom.
Bottom of grid has variable thickness of up to 42.24 mm.
|
| NADGridWebZ |
210.8 mm |
Height of grid web.
Verified against LAT-DS-01579 on 5 May 2004. |
| NADGridWebCutout |
366.5 mm |
Cut-outs for calorimeters.
Verified against LAT-DS-01579 on 5 May 2004. |
| NADGridFlangeZ |
25.4 mm |
Height of grid flange.
Verified against LAT-DS-01579 on 5 May 2004. |
| NADGridFlangeCutout |
346.6 mm |
Cutouts in the flange.
Verified against LAT-DS-01579 on 5 May 2004.
|
| NADGridFlangeInner |
27.9 mm |
Thickness of inner parts of
grid flange. Verified against LAT-DS-01579 on 5 May 2004. |
| NADGridFlangeOverhang |
25 mm |
Flange overhangs web.
Verified against LAT-DS-01579 on 5 May 2004. |
| NADBlanketThick |
32.7 mm |
Blanket thickness (12/6/01)
This is the PDR value. |
| NADSpacecraftZ |
1400 mm |
Height of spacecraft |
| NADSpacecraftR |
817.775 mm |
Radius of spacecraft
(800.0 * sqrt(1/(0.957)) to make mass equal to about 1000 kg |
| NADSpacecraftGap |
0 mm |
Gap between LAT and spacecraft |
| NADSolarRodLength |
1000 mm |
Length of connecting
rods for solar panels |
| NADSolarRodR |
50 mm |
Radius of connecting
rods for solar panels |
| NADSolarPLength |
5000 mm |
Solar panel length (extending
out from spacecraft) |
| NADSolarPWidth |
1500 mm |
Solar panel width |
| NADSolarSiThick |
4 mm |
Solar panel thickness |
| NADSolarCoreThick |
2 mm |
Solar panel thickness |
| Name | Value | Description |
| CsISegLength |
27.1667 mm |
length along measurement dimension of a CsI segment |
| nCsISegM1 |
11 |
upper limit for id field keeping track of segment number
|
| CALMaxLayer |
7 |
upper limit on Cal layer idfield value |
| diodePosXOffset |
163.15 mm |
X-offset of a diode relative to the center of the
CsI crystal |
| diodeNegXOffset |
-163.15 mm |
X-offset of diode on negative end of a crystal |
| cellVertWallHalfThick |
0.225 mm |
convenience |
| cellHorWallHalfThick |
0.425 mm |
convenience |
| CsIEnvX |
326.6 mm |
Long dimension of envelope containing a CsI crystal
and its diodes |
| CsIEnvY |
27.84 mm |
Transverse dimension of envelope containing a CsI
crystal and its diodes |
| CsIEnvZ |
21.35 mm |
Height of the envelope containing a CsI crystal and
its diodes |
| cellIntWallZ |
20.5 mm |
Height of vertical wall, up to but not including
horizontal walls |
| CsIWrapTranvLen |
26.713 mm |
Extent (in Y or X, perp. to main axis of crystal)
of crystal wrap |
| cellHorWall_dz |
10.4625 mm |
Z position rel. to cell of upper horiz. wall |
| cellHorWall_dzn |
-10.4625 mm |
Z position rel. to cell of lower horiz. wall |
| cellVertWall_dy |
13.8075 mm |
Y displacement rel. to cell of vertical cell wall
(here Y means perp. to height and length directions) |
| cellVertWall_dyn |
-13.8075 mm |
Neg. of Y displacement rel. to cell of vertical cell wall
(here Y means perp. to height and length directions) |
| wrapHorWall_dz |
9.95325 mm |
Z positionrel. to cell of upper crystal wrap box |
| wrapHorWall_dzn |
-9.95325 mm |
Z position rel. to cell of lower crystal wrap box |
| wrapVertWall_dy |
13.3532 mm |
Z position rel. to cell of +y side crystal wrap box |
| wrapVertWall_dyn |
-13.3532 mm |
Z position rel. to cell of -y side crystal wrap box |
| cellTopExtraThick |
2.005 mm |
Extra thickness of cell material on top layer, beyond
what the standard layer has |
| cellBottomExtraThick |
4.005 mm |
Extra thickness of cell material on bottom layer, beyond
what the standard layer has |
| cellSideExtraThick |
1.46 mm |
Extra thickness of cell material on side of
outermost crystal, beyond interior crystals have. |
| CALLayerNonmeasWidth |
337 mm |
Width of a layer in non-meas direction. Logs
plus two bits of extra carbon cell material
on the sides |
| CALLayerTrans |
337 mm |
Transverse dimension of a CAL layer:
max(CsiEnvX, nEltPerlayer*cellHorPitch) |
| CALLayersTotalZ |
176.81 mm |
Includes cal layers and inter-layer walls but not frame,
grid, etc. (may be superseded by info from Eric) |
| CALTopFrameLowerLen |
338 mm |
Outer dimension of lower of two top frame pieces |
| CALTopFrameUpperZ |
6 mm |
Height of top frame is derived from total frame Z and
lower height, which are primary |
| CALTopFrameUpperLen |
350.6 mm |
Outer dimension of upper of two top frame pieces |
| CALTopFrameLowerCutoutLen |
323 mm |
Length of the side of the square vacuum cutout for
lower of two top frame pieces. |
| CALTopFrameUpperCutoutLen |
324.2 mm |
Length of the side of the square vacuum cutout for
upper of two top frame pieces. |
| CALFrameWidth |
353 mm |
transverse dimension for cal frame (one tower) |
| CALBottomFrameShort |
293 mm |
Length of shorter pieces in CAL bottom frame |
| CALBottomFrame_dt |
164 mm |
Transverse displacement of bottom frame pieces |
| CALBottomFrame_dtn |
-164 mm |
Negative transverse displacement of bottom
frame pieces |
| CALFramedLayersZ |
206.81 mm |
Z dimension of CsI layers plus frame. Note
This constant may need updating if description of
CAL changes! Constant instituted 30 April 2003 |
| CALBottomFrame_dz |
-90.15 mm |
Offset of bottom frame relative to stay-clear box.
Later will probably have to locate different frame
pieces separately. |
| CALLayers_dz |
5.255 mm |
Offset of vol. containing layers relative to
stay-clear box. Upper frame is at top of box,
followed by CALLayers.
Constant instituted 30 April 2003.
Modified 20 June when CALLayers was redefined to
exclude frame. Modified 3 Sept 2003 to align
CAL bottom frame with bottom of grid web |
| CALTopFrameLower_dz |
98.66 mm |
Displacement for lower of 2 top frame pieces
within stay-clear |
| CALTopFrameUpper_dz |
106.66 mm |
Displacement for upper of 2 top frame pieces
within stay-clear |
| CALOuterWallPCBGap |
4.9 mm |
Gap between CAL outer side wall Al component and PCB
layer. Comparable gap on other side is primary constant. |
| CALCloseoutGap |
0.5 mm |
Distance from closeout (inner
part of CAL side wall) and carbon fiber cell about crystals.
As of 24 June 2003, derived |
| CALSidePCBLen |
347.4 mm |
Transverse length of PCB component of CAL side wall |
| CALSideOuterLen |
360.4 mm |
Transverse length of outer Al component of CAL
side wall |
| CALCloseoutZ |
186.81 mm |
Height of CAL closeout (and, with current model, also
PCB. **To be revised.
For now (20 June 2003) have shortened closeout
pieces to only run down to top of bottom frame.**
|
| CALSidePCBZ |
186.81 mm |
Height of CAL side wall PCB. **To be revised.
For now (20 June 2003) have shortened side PCB
pieces to only run down to top of bottom frame.**
|
| CALSideOuterZ |
192.81 mm |
Height of outermost component of CAL side wall
**To be revised.
For now (20 June 2003) have shortened side
pieces to only run down to top of bottom frame.**
|
| CALCloseout_dt |
169.5 mm |
Transverse offset of CAL closeout walls |
| CALCloseout_dtn |
-169.5 mm |
Transverse offset of negative CAL closeout walls |
| CALCloseout_dz |
10.255 mm |
Vertical offset of CAL side closeouts |
| CALSidePCB_dt |
174.5 mm |
Transverse offset of CAL side PCB walls |
| CALSidePCB_dtn |
-174.5 mm |
Transverse offset for negative CAL side PCB walls |
| CALSidePCB_dz |
10.255 mm |
Vertical offset of CAL side PCB |
| CALSideOuter_dt |
180.6 mm |
Transverse offset of outer Al component of
CAL side walls |
| CALSideOuter_dtn |
-180.6 mm |
Transverse offset of negative outer Al component of
CAL side walls |
| CALSideOuter_dz |
13.255 mm |
Vertical offset of outer Al component of CAL side
walls. Assume top of it lines up with top of frame. |
| eBottomFrame |
18 |
For use in identifiers |
| eTopFrame |
19 |
For use in identifiers |
| eBottomPlate |
20 |
For use in identifiers |
| eTopPlate |
21 |
For use in identifiers |
| Name | Value | Description |
| TKRCloseoutTrans |
360.6 mm |
Transverse dimension of the business part of the
tray, large enough to include all silicon, closeout,
etc. but no larger (Revised 3May02) |
| TKRTotalZ |
631.965 mm |
total space occupied by tracker, including foot |
| TKRTrayWidth |
363 mm |
Large enough to include 2 MCM boards (and 2 gaps) as
well as closeout. |
| waferPitch |
89.525 mm |
Distance between centers of adjacent wafers in
a ladder |
| ladderPitch |
89.7 mm |
Distance between centers of adjacent wafers in
adjacent ladders |
| TKRGuardRing |
0.974 mm |
Width of dead region around outside of Si wafer |
| TKRBiasWidth |
360.6 mm |
Transverse dimension of bias board (for now assuming
it's a square |
| TKRCloseoutThick |
27.92 mm |
Z dimension of closeout for trays other than top
and bottom |
| TKRCloseoutThickBot |
36.535 mm |
Z dimension of closeout for bottom tray |
| TKRCloseoutThickTop |
33.995 mm |
Z dimension of closeout for top tray |
| TKRCloseoutLen |
360.6 mm |
Transverse length of longer of (imaginary) closeout
pieces, just the same as the face sheet |
| TKRCloseoutLenShort |
350.6 mm |
Transverse length of shorter of (imaginary) closeout
pieces |
| TKRCoreWidth |
350.6 mm |
Length of sides for core |
| TKRCloseout_dt |
177.8 mm |
Transverse (x or y) offset of closeout pieces
w.r.t. tray |
| MCMLength |
360.6 mm |
Long transverse dimension of MCM board |
| TKRWallLengthShort |
368.45 mm |
For the XML description, tracker wall is broken up
into 4 pieces: 2 long ones extending in X and two slightly
shorter ones extending in Y. This is the length of the
shorter ones. |
| TKRWall_dt |
184.975 mm |
Positive transverse offset of TKR wall, relative to
center of a tower |
| TKRWall_dtn |
-184.975 mm |
Negative transverse offset of TKR wall, relative to
center of a tower |
| TKRCloseout_dtn |
-177.8 mm |
Negative transverse offset of closeout pieces |
| TKRMCMint_dz |
2.46 mm |
Offset of MCM board on + side w.r.t. enclosing envelope
for interior (not top or bottom) boards
|
| TKRMCMint_dzn |
-2.46 mm |
Offset of MCM board on - side w.r.t. enclosing envelope
for interior (not top or bottom) boards
|
| TKRMCMextTop_dz |
5.4975 mm |
Offset of MCM board on + side w.r.t. enclosing envelope
for top board
|
| TKRMCMextTop_dzn |
-5.4975 mm |
Offset of MCM board on - side w.r.t. enclosing envelope
for top board
|
| TKRMCMextBot_dz |
6.7675 mm |
Offset of MCM board on + side w.r.t. enclosing envelope
for top board
|
| TKRMCMextBot_dzn |
-6.7675 mm |
Offset of MCM board on - side w.r.t. enclosing envelope
for top board
|
| TKRMCM_dt |
180.95 mm |
Transverse (x or y) offset of MCM board |
| TKRMCM_dtn |
-180.95 mm |
Negative transverse (x or y) offset of MCM board |
| biasGlueThick |
0.35 mm |
Thickness of upper bias board and glue above it |
| TKRTopFaceRegZ |
0.625 mm |
Thickness of combined glue+ face-sheet + glue +
bias-board + glue for non-superGLAST trays |
| TKRTopFaceSupZ |
0.715 mm |
Thickness of combined glue+ face-sheet + glue +
bias-board + glue for superGLAST trays |
| TKRBotFaceRegZ |
0.375 mm |
Thickness of bottom face sheet and surrounding glue
for non-superGLAST trays |
| TKRBotFaceSupZ |
0.465 mm |
Thickness of bottom face sheet and surrounding glue
for superGLAST trays |
| TKRFaceMinZ |
0.275 mm |
Thickness of regular face sheet and glue attaching
it to core/closeout |
| TKRFaceMinBotZ |
0.365 mm |
Thickness of regular face sheet and glue attaching
it to core/closeout |
| TKRMaxNoCnv |
2 |
Tray number of most forward no-converter tray |
| TKRMaxReg |
17 |
Tray number of most forward "regular" tray. Top
tray doesn't qualify since it has no top Si. |
| nWaferAcrossM1 |
3 |
Used as bound for possible idField values |
| nLadderM1 |
3 |
Upper limit on ladder idField values |
| maxTray |
18 |
Upper limit on tray idField values |
| maxTrayM1 |
17 |
max tray number of tray with bottom Si wafers |
| maxWaferStripNum |
383 |
Upper limit on strip number within a wafer |
| Name | Value | Description |
| xNumM1 |
3 |
Convenience number |
| yNumM1 |
3 |
Convenience number |
| maxLog |
11 |
Upper limit on CsI log idField values |
| towersTotalX |
1495.5 mm |
Meant to be X width of the array of tracker towers;
doesn't include grid |
| towersTotalY |
1495.5 mm |
Meant to be Y width of the array of tracker towers;
doesn't include grid |
| towersTotalZ |
891.2 mm |
Height of cal (stay clear) + height of tracker (S-C) + gap between.
Also add gap between CAL and
|
| towersTotalHalfZ |
445.6 mm |
Convenience |
| CAL_dz |
-333.45 mm |
Offset of CAL stay-cleaar within single-tower volume.
It's just below flange and min. 1.5 mm gap.
|
| TKR_dz |
125.6 mm |
Offset of TKR within single-tower volume |
| TKRFudge_dz |
-4.0175 mm |
Extra offset to get TKR bottom to touch grid.
Depends on TkrTotalZ, which is entered by hand.
This may go away if geometry can learn to do this by itself. |
| gridFlange_dz |
-207.1 mm |
Z-Offset of grid flange pieces within single-tower volume.
|
| gridWeb_dz |
-325.2 mm |
Z-Offset of grid web pieces within single-tower volume |
| gridFlange_dt |
180.275 mm |
Transverse offset of per-tower grid flange pieces |
| gridFlange_dtn |
-180.275 mm |
Negative transverse offset of per-tower grid flange
pieces |
| gridWeb_dt |
185.25 mm |
Transverse offset of per-tower grid web pieces |
| gridWeb_dtn |
-185.25 mm |
Negative transverse offset of per-tower grid web pieces
|
| LATGridFlange_dt |
766 mm |
Transverse offset of LAT-wide grid flange pieces |
| LATGridFlange_dtn |
-766 mm |
Neg. transverse offset of LAT-wide grid flange pieces |
| LATGridWeb_dt |
753.5 mm |
Transverse offset of LAT-wide grid web pieces |
| LATGridWeb_dtn |
-753.5 mm |
Neg. transverse offset of LAT-wide grid web pieces |
| Name | Value | Description |
| ACDSideSupportThick |
26.416 mm |
Thickness of core + face sheets for side support |
| ACDTopSupportThick |
51.816 mm |
Thickness of core + face sheets for top support |
| ACDSidesGap |
1670.28 mm |
Min. distance between tiles of the two sides || to x-axis
or equivalently of the two sides || to y-axis.
Use displacement info for top row of tiles from from 3-d model
|
| ACDTopTransverse |
1663.68 mm |
Transverse dimension of envelope which will contain
ACD top tiles and ribbons. As of July 2003, just set to
value large enough to include all top tiles as positioned
from 3-d model. From this model there is an approx. 3 mm
(actually 3.3) gap between side tiles (top row) and top tiles
|
| ACDTop_z |
65.6 mm |
Z dimension of envelope which will contain
ACD top tiles and ribbons (1 nov 2002)
As of July, '03, simply use information from 3-d model
about location of top of topmost tiles and top of
support structure to compute this. |
| ACDTopZHalf |
32.8 mm |
for convenience |
| ACDTop_d |
739.8 mm |
Z displacement of top ACD relative to Ritz origin.
As of July, 2003, get frontmost tile position from
3-d model version 6-23-03; compute from there. |
| ACDSideThickness |
10 mm |
This isn't really correct. If overlapping and
slant are taken into account, ACDSideThickness is
over twice this value. (1 nov 2002) |
| ACDTotalX |
1691.28 mm |
Total extent in X of entire collection of ACD pieces,
plus a millimeter for good luck (4 nov 2002) |
| ACDTotalY |
1691.28 mm |
Total extent in Y of entire collection of ACD pieces |
| ACDTotalTransSide |
1676.64 mm |
transverse length of collection of ACD side tiles,
e.g those alone -X side of instrument. Could be
used for envelope volume. Is also equal to transverse
dimension of the single tile in the bottom row.
(1 nov 2002). July '03. Now compute as sum of tranverse
dimensions of tiles in R0, columns 0-5, plus gaps |
| tileSide_dt |
840.14 mm |
Transverse (perpendicular to plane of face) displacement
of side face of ACD |
| tileSide_dtn |
-840.14 mm |
Transverse (perpendicular to plane of face) displacement
of side face of ACD for "negative" faces |
| xRibbonTop_l |
1663.68 mm |
These ribbons run the full distance across ACDTop
(actually more, but that's all that will fit) |
| yRibbonTopCent_l |
374 mm |
length of ribbon segments running under the central column
of tiles |
| yRibbonTopMid_l |
339 mm |
length of ribbon segments running under columns 1,3
of top tiles |
| yRibbonTopEdge_l |
335 mm |
length of ribbon segments running under columns 0,4
of top tiles |
| ACDSide_z |
850.81 mm |
Total height of an ACD side of tiles
(tiles plus gaps) |
| ribbonHalfThickness |
2.5 mm |
for convenience |
| tileHalfThickness |
5 mm |
for convenience |
| sideTileRow0_d |
242.405 mm |
Z-Displacement for top row (row 0) of side tiles (X and Y),
relative to the center of a box containing the side |
| sideTileRow1_d |
-40.325 mm |
Displacement for row 1 side tiles (X and Y) |
| sideTileRow2_d |
-215.055 mm |
Displacement for row 2 side tiles (X and Y) |
| sideTileRow3_d |
-357.73 mm |
Displacement for row 3 side tiles (X and Y) |
| topTileEdge_dz |
27.8 mm |
Displacement w.r.t. center of ACD top envelope of
highest tiles, those in col. 0 and 4 |
| topTileMid_dz |
14.8 mm |
Displacement w.r.t. center of ACD top envelope of
tiles in cols 1 and 3 |
| topTileCent_dz |
2.37 mm |
Displacement w.r.t. center of ACD top envelope of
tiles in col 2 |
| topTileMid_dx |
324 mm |
X displacement of top tiles in column 3 |
| topTileMid_dxn |
-324 mm |
X displacement of top tiles in column 1 |
| topTileEdge_dx |
653.5 mm |
X displacement of top tiles in column 4 |
| topTileEdge_dxn |
-653.5 mm |
X displacement of top tiles in column 0 |
| topTileMid_dy |
334 mm |
Y displacement of tiles in row 3 |
| topTileMid_dyn |
-334 mm |
Y displacement of tiles in row 1 |
| topTileEdge_dy |
666.835 mm |
Y displacement of tiles in row 4 |
| topTileEdge_dyn |
-666.835 mm |
Y displacement of tiles in row 0 |
| topXRibbon_dz |
-30.3 mm |
Z displacement for long ribbon segments running || to
Y-axis along top. |
| xRibbonInner_dx |
167 mm |
x displacement of X ribbon #2 |
| xRibbonOuter_dx |
501 mm |
x displacement of X ribbon #3 |
| xRibbonOuter_dxn |
-501 mm |
x displacement of X ribbon #0 |
| xRibbonInner_dxn |
-167 mm |
x displacement of X ribbon #1 |
| ribbonsSideWidth |
1016 mm |
Width of envelope volume to contain 4 side
ribbons |
| ribbonsSideZ |
755.21 mm |
Height of envelope volume to contain 4 side
ribbons. The envelope extends from bottom of
ACDTop volume to back edge of side tiles. |
| topYRibbonEdge_dz |
20.3 mm |
Z displacement for outer segments (1 and 5) of
top ribbons || to x-axis |
| topYRibbonMid_dz |
7.3 mm |
Z displacement for mid segments (2 and 4) of
top ribbons || to x-axis |
| topYRibbonCent_dz |
-6.13 mm |
Z displacement for central segment (3) of
top ribbons || to x-axis |
| topYRibbonMid_dx |
341.5 mm |
x-displacement of segment 4 |
| topYRibbonMid_dxn |
-341.5 mm |
x-displacement of segment 2 |
| topYRibbonEdge_dx |
663.5 mm |
x-displacement of segment 5 |
| topYRibbonEdge_dxn |
-663.5 mm |
x-displacement of segment 1 |
| topYRibbonInner_dy |
167 mm |
Y displacement for segments belonging to Y-ribbon 2 |
| topYRibbonInner_dyn |
-167 mm |
Y displacement for segments belonging to Y-ribbon 1 |
| topYRibbonOuter_dy |
501 mm |
Y displacement for segments belonging to last Y-ribbon (3)
|
| topYRibbonOuter_dyn |
-501 mm |
Y displacement for segments belonging to first Y-ribbon (0)
|
| ACDSideDovetail_d |
6 mm |
Side tiles on sides parallel to X-axis (sides 2 and 4)
have a displacement in X of this amount, positive
for side 2 and negative for side 4. Similarly side 3
is displaced positively in Y by this amount, side 1
negatively.
|
| ACDSideDovetail_dn |
-6 mm |
Dovetail displacement for "negative" ACD sides |
| ACDSideSupport_dtn |
-779.9 mm |
Transverse (x or y) distance of support side from
Ritz origin, negative |
| ACDSideSupport_dDovetailn |
-13.028 mm |
Negative dovetail distance for those sides
that need it. |
| XTopTileMax |
4 |
Convenience for idField definitons |
| YTopTileMax |
4 |
Convenience for idField definitons |
| ACDShortRowMin |
3 |
row number of first short ACD side row |
| ACDShortRowMax |
3 |
row number of last short ACD side row |
| ACDShortMaxCol |
0 |
Column number of last tile in a short row |
| ACDLongMaxCol |
4 |
Column number of last tile in a long row |
| Name | Value | Description |
| LATX |
1691.28 mm |
X-dimension of an envelope for the LAT,
not including thermal blanket |
| LATY |
1691.28 mm |
Y-dimension of an envelope for the LAT,
not including thermal blanket |
| LATZ |
1064.42 mm |
Z-dimension of an envelope for the LAT,
not including thermal blanket |
| bigXZDim |
4582.4 mm |
Something big enough (for X and Z) to position
everything inside,
with origin where it should be, at the very front
of the grid. |
| biggerZDim |
4582.4 mm |
this is to make room for moving the LAT around in z,
to look for bad hardwired consts. The formula is:
biggerZDim = bigXZDim + 2* abs(globalOffset_dz) |
| NADTotalPanelLen |
6000 mm |
Length of panel proper plus connecting rod |
| bigYDim |
13835.5 mm |
Something big enough to use as Y dimension of
envelope (takes into account solar panels)
|
| solarPanel_dy |
500 mm |
y-displacement of panel-only part of solar panel w.r.t.
envelope including panel and connecting rod |
| solarRod_dy |
-2500 mm |
y-displacement of rod part of solar panel w.r.t.
envelope including panel and connecting rod |
| solarPanelEnv_dy |
3817.78 mm |
y-displacement of entire (+Y) solar panel envelope w.r.t.
Ritz origin. |
| solarPanelEnv_dyn |
-3817.78 mm |
y-displacement of entire (-Y) solar panel envelope w.r.t.
Ritz origin. |
| solarPanelEnv_dz |
-951.2 mm |
z-displacement of entire solar panel envelope w.r.t.
Ritz origin. |
| solarPanelSi_dz |
1 mm |
z-displacement of Si part of solar panel w.r.t.
envelope including panel and connecting rod |
| solarPanelCore_dz |
-2 mm |
z-displacement of core part of solar panel w.r.t.
envelope including panel and connecting rod |
| NADSolarRodDiam |
100 mm |
Diameter of rods connecting solar panels to spacecraft |
| LATZHalf |
532.21 mm |
convenience |
| towersTrans |
1498 mm |
Transverse dimension of envelope containing the towers
|
| innerTowers_dt |
187.25 mm |
Transverse displacement of towers in row (column) 2 |
| outerTowers_dt |
561.75 mm |
Transverse displacement of towers in row (column) 3 |
| innerTowers_dtn |
-187.25 mm |
Transverse displacement of towers in row (column) 1 |
| outerTowers_dtn |
-561.75 mm |
Transverse displacement of towers in row (column) 0 |
| towers_dz |
194.4 mm |
Displacement necessary to get towers origin in the
right place, namely at the front face of the grid
**Decreased by gap between CAL and TKR, nearly the
same as grid flange height, as of 29 Apr 2003**
|
| spacecraft_dz |
-951.2 mm |
Z displacement of spacecraft relative to Ritz origin.
It goes immediately under the LAT |
| tileSide_dz |
377.195 mm |
displacement in z of side tiles rel. to Ritz origin.
Compute relative to ACDTop_d. Find coordinate of top of
ACD side, then subtract half side height.
|
| ribbonsSide_dz |
329.395 mm |
displacement in z of side ribbons rel. to Ritz origin.
Ribbons go down as far as tile sides but don't go up quite as
high. |
| ribbonsSide_dt |
832.64 mm |
Transverse displacement from origin of a side's worth
of ribbons. Place them in an idealized position right
next to side tiles |
| ribbonsSide_dtn |
-832.64 mm |
Transverse displacement from origin of a side's worth
of ribbons on a negative side |
| Name | Value | Description |
| NADGridWebWidth |
1516 mm |
Full width of grid web in X or Y |
| NADGridFlangeWidth |
1566 mm |
Full width of grid flange in X or Y |
| NADGridFlangeOuter |
47.95 mm |
Width of outer piece of flange (wider than web) |
| NADGridFlangeInnerHalf |
13.95 mm |
convenience |
| NADGridWebInnerHalf |
4 mm |
convenience |
| NADGridLenLong |
374.5 mm |
Length of longer outer (not per-tower) grid pieces |
| NADGridWebLenShort |
366.5 mm |
Length of shorter outer (not per-tower)
grid web pieces |
| NADGridFlangeLenShort |
346.6 mm |
Length of shorter outer (not per-tower)
grid flange pieces |
| NADGridWebOutsideWidth |
9 mm |
Width of web outside towers (i.e., 4 * towerPitch) |
| NADGridFlangeOutsideWidth |
34 mm |
Width of flange outside towers (i.e., 4 * towerPitch) |
| NADGridWebOutsideLenShort |
1498 mm |
Length of short outside piece of grid web |
| NADGridFlange_dz |
-12.7 mm |
Displacement of flange w.r.t. Ritz origin, which is
at its top face |
| NADGridWeb_dz |
-130.8 mm |
Displacement of grid w.r.t. Ritz origin. Web is
immediately below flange. |
| NADGridFlangeOutsideLenShort |
1498 mm |
Length of short outside piece of grid web |
| NADBlanketTopX |
1756.68 mm |
X dimension of top of thermal blanket |
| NADBlanketTopY |
1756.68 mm |
Y dimension of top of thermal blanket |
| NADBlanketSideY_l |
1756.68 mm |
length in long (x) dimension of Y-sides of blanket |
| NADBlanketSideX_l |
1691.28 mm |
length in long (Y) dimension of X-sides of blanket, shorter
than Y-sides because Y-sides cover corners |
| NADBlanketSideZ |
1075.11 mm |
height of a side piece of the blanket: approx.
height of ACD side tiles + height of cal |
| NADBlanket_dx |
861.99 mm |
x displacement of pos. x side of blanket |
| NADBlanket_dxn |
-861.99 mm |
x displacement of neg. x side of blanket |
| NADBlanket_dy |
861.99 mm |
y displacement of pos. y side of blanket |
| NADBlanket_dyn |
-861.99 mm |
y displacement of neg. y side of blanket |
| NADBlanketTop_dz |
818.95 mm |
z displacement of top of blanket |
| NADBlanketSides_dz |
265.045 mm |
z displacement of sides of blanket. Sits
just under blanket top. |