Forward Angle Muon System (FAMUS)
Mini-Drift Tubes (MDT)
Detectors
- 10 decks / octant
- 4 A-layer decks / octant
- 3 B-layer decks / octant
- 3 C-layer decks / octant
- preliminary channel count (within 2%):
- A-layer
- 960 cells / octant / side
- B-layer
- octants 0,1,2,3,4,7
- 1056 cells / octant / side
- octants 5,6
- 768 cells / octant / side
- C-layer
- octants 0,1,2,3,4,7
- 1320 cells / octant / side
- octants 5,6
- 768 cells / octant / side
Mini-Drift
Digitizing Cards (MDC's) (front end cards)
- 192 channels / MDC capacity
- 134 MDC's / side * 2 sides = 268 MDC's
- A-layer
- 5 MDC's / octant / side
- B-layer
- octants 0,1,2,3,4,7
- 6 MDC's / octant / side
- octants 5,6
- 4 MDC's / octant / side
- C-layer
- octants 0,1,2,3,4,7
- 7 MDC's / octant / side
- octants 5,6
- 4 MDC's / octant / side
- outputs:
- 2 cables / MDC to MCEN
(96 bits / cable)
- location:
- MDC crates (trusses)
Mini-Drift
Readout Controller (MDRC) cards
- 1 Digital Signal Processor (DSP) / MDRC
- 1 readout controller / MDRC
- inputs:
- 3 coax cables / MDRC from MRC
for timing signals
- 1 twisted & flat cable for control signals to and from MRC
- outputs:
- 1 coax cable / MDRC for serial link to L2 (L2 data from DSP via HOTLink)
- 1 coax cable / MDRC for serial link to MRC
(L3 data from DSP via HOTLink)
- location:
- MDC crates (trusses)
MDC Crates
- 24 crates
- 8-14 MDC's / crate
- 2 octants / layer / crate
- (grouped by octants 7&0, 1&2, 3&4, 5&6)
- 1 Mini-Drift Readout Controller (MDRC) / crate
- 1 680xx processor card / crate
- location:
- crates for octants 7&0, 3&4: vertical trusses
- crates for octants 1&2: top trusses
- crates for octants 5&6: bottom forward regions; between MDT planes?
Forward Muon SCintillators (FMSC)
Detectors
- 96 FMSC's / octant / layer
Scintillator Front End (SFE)
cards
- 2 SFE's / octant / layer
- 48 channels / FE card
- outputs:
- all layers: 1 cable / FE card to fan-in on MCEN card (48 bits / cable)
- (then from fan-in to MTCxx cards)
- OR
- A-layer: 1 cable / FE card to fan-in on MCEN card (48 bits / cable)
- (then from fan-in to MTCxx cards)
- B & C-layers: 1 cable / FE card to MTC05 (48 bits / cable)
- 1 cable / FE card to MTC10 (48 bits / cable)
- location:
- FMSC crates (trusses)
Scintillator
Readout Controller (SRC) cards
- 1 readout controller (RC) / SCRC
- 1 Digital Signal Processor (DSP) / SCRC
- inputs:
- 3 coax cables / MDRC from MRC
for timing signals
- 1 twisted & flat cable for control signals to and from MRC
- outputs:
- 1 coax cable / MDRC for serial link to L2 (L2 data from DSP via HOTLink)
- 1 coax cable / MDRC for serial link to MRC
(L3 data from DSP via HOTLink)
- location:
- FMSC crates (trusses)
Front End Crates
- 8 FE cards / crate
- 4 octants / layer / crate
- 12 crates
- 2.1 kbyte / crate @ 2E32
- MSNAE - north A-layer east (octants 1,0,7,6)
- MSNAW - north A-layer west (octants 2,3,4,5)
- MSNBE - north B-layer east (octants 1,0,7,6)
- MSNBW - north B-layer west (octants 2,3,4,5)
- MSNCE - north C-layer east (octants 1,0,7,6)
- MSNCW - north C-layer west (octants 2,3,4,5)
- MSSAE - south A-layer east (octants 1,0,7,6)
- MSSAW - south A-layer west (octants 2,3,4,5)
- MSSBE - south B-layer east (octants 1,0,7,6)
- MSSBW - south B-layer west (octants 2,3,4,5)
- MSSCE - south C-layer east (octants 1,0,7,6)
- MSSCW - south C-layer west (octants 2,3,4,5)
- 1 SRC / crate
- 1 680xx microprocessor card / crate
- 1 SC LED pulser card / crate
- location:
- vertical trusses
created: 1996.12.06 revised: 1997.01.29
Contact: darien@fnal.gov