RICH 17 m Beam Pipe Mirrors Separate pions from muons
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Transcript of RICH 17 m Beam Pipe Mirrors Separate pions from muons
RICH
17 m
Beam Pipe
Mirrors•Separate pions from muons <1% level between 15 and 35 GeV/c•Track time at 100 ps level•Partecipate in the L0 trigger
• Neon as Cherenkov radiator• mosaic of mirrors (17 m focal length)• two spots with PM (1000 PM per spot)• beam pipe passing through
PM lodging disk
INFN PerugiaINFN FirenzeCERN
M.Lenti
M.Lenti 2
RICH prototype resultsNIM A593 (2008) 314-318 NIM A621 (2010) 205-211
15 GeV/c
35 GeV/c
m suppression: 0.7%( 15<p<35 GeV/c)
12.9.2011
Milestones:• Design for mirror support: 30.06.2011• Vessel installation ready: 30.04.2012• Mirror and PM installation complete: 2.12.2012
M.Lenti 4
Vessel (CERN): vacuum proof !
Gas system simplified: make vacuum, then inject pure Neon12.9.2011
512.9.2011 M.Lenti
Vessel tender not submitted yet(CERN responsibility)
M.Lenti 6
Photomultipliers• 1944 PM available (quality test ongoing)• 2000 HV divider in preparation (custom made)
PM mechanics in fabrication
FE electronics in preparation
12.9.2011
M.Lenti 7
RICH PMs
PM Time resolution measurements made in Perugia
12.9.2011
M.Lenti 8
PM HV dividers
SOLDERED HV- CONNECTION
TOP AND BOTTOM SMD COMPONENTS
SIG OUT COAX
SOLDERED HV+ (GND)
COAX SHIELD AND HV+ SOLDERED TOGETHER
12.9.2011
M.Lenti 9
HV Filter boardSHV CONNECTOR FROM CAEN HV-PS
BRACKET TO FIX BOARD TO THE 9U EMPTY CHASSIS
32 CH HV TO PMT
SPACERS SUPPORT FOR SECURITY COVER
12.9.2011
M.Lenti 10
Electronics chain
PMT
PRE_NINO NINO_CHIP TELL 62
RG174
PCB MICROSTRIP50-52 OHM DIFFERENTIALFOR NINO CHIP MATCHING
MADISONUNIVERSAL TM CABLE FOR 130 OHMDIFFERENTIALFOR LVDS SIGNAL
VME RICH FE 32 CH BOARD
GAIN DIFF
PCB MICROSTRIP130 OHM DIFFERENTIALFOR CABLE MATCHING
BIPOLAR HV CABLE
50 OHMTERMINATOR
VHDCI CONN
12.9.2011
M.Lenti 11
FE board340 mm
360
mm
CUSTOMIZABLEFRONT END (“FE”)AREA
“DAQ”AREA
8CHNINOCHIP
DC/DCCONVERTER3.3 TO 2.5V
I2C
CAN
8CHNINOCHIP
8CHNINOCHIP
8CHNINOCHIP
MIN. 120 mm MAX. 220 mm 32
LEM
O C
OAX
SIG
NAL
FRO
M P
MT
32 C
HAN
NEL
FRO
NT-
END
ARE
A
J1 VMECONNECTOR
32 CH VHDCICONNECTOR
TO TELL62
4CH MULTIPLICITYTO TELL62
CAN BUSCONNECTORS
G
12.9.2011
M.Lenti 12
DAQ
• TEL62 board equipped with 4 HPTDC: 512 ch• 4 TEL62 for all PM (2000 ch)• 1 TEL62 for “multiplicity” trigger (250 ch)• Perugia group works on the TEL62 fimware
and trigger• See M.Sozzi report for details
12.9.2011
M.Lenti 13
Mirrors• All mirrors ready (18 hex + 2 semi-hex),
now at CERN• Quality test made in Italy in may 2011• Coating to be done at CERN
Mirror support system with a “dummy” mirror:• hung at the center• aligned with micrometric piezo.motors
V.Carassiti will engeneerize the mirror support system In the fall 2011
12.9.2011
M.Lenti 14
Lab’sOptical Measurements Lab 12.4.2011
Dummy Mirror in Clean Room 12.4.2011
12.9.2011
M.Lenti 15
Hex10Hex10 in Box3 (28.04.2011) Hex10 in box (29.04.2011)
Hex10 in Optics Lab (29.04.2011)
12.9.2011
M.Lenti 16
Hex10
Dist Laser-Mirror: 33.875 mDist Mirror-Diode: 33.985 mMinimum: +0.6 cmR = (33.875+33.985+0.006)/2 = 33.933 mF = R/2 = 16.967 mσX(min) = 0.20 mmσy(min) = 0.13 mm√(σX*σY)(min) = 0.12 mmFx-Fy: +4.2 cm
Hor
iz. S
igm
a
Vert
. Si
gma
Hor
iz.*
Vert
. Sig
ma(
2)
12.9.2011
M.Lenti 17
A. Cassese
12.9.2011
M.Lenti 18
Mirror Support
The Mirror is supported through one hole in the back where a dowel is inserted.The Mirror is falling: the dowel is touching the mirror not in the barycenterActuating ribbon works against g and givesvertical axis alignmentA second actuating ribbon at 90 deg givesthe horizontal axis alignmentPiezo motors are used to pull the ribbons
System heavily tested in Lab in Firenze
12.9.2011
M.Lenti 19
Mirror Support Panel
Goal: engeneer projectby the end of 2011, then go for tender (INFN responsibility)
12.9.2011
M.Lenti 20
Milestones RICH 2012
• Installazione dei PM e dell'elettronica di FE 31.08.2012• Installazione degli specchi 31.08.2012
12.9.2011
M.Lenti 21
Mirror Support Design
Mirror Wall Design
Mirror Wall Tender + Contract Preparation
Design for Mirror Supports and Wall Completed
Mirror Support Wall Order
Mirror Support Wall Fabrication
Vessel Tender and Contract preparation
Vessel order
Vessel Fabrication
RICH Vessel Installation
Vessel Installation Completed
Temp. setup for TR
Filling Gas
Mirror Support Installation
Mirror Installation
Mirror Laser Alignment
Temp. Beam Pipe Installation
Beam Pipe Installation
Photodetector Installation
Cooling + cabling of PM's
Mirror and PM Installation complete
Commissioning without Beam
07/2010 12/2010 07/2011 01/2012 07/2012 01/2013RICH TR
RICH Schedule V8.4 (baseline)Assumes Rich vessel in time for TR
Very short time windowTo get ready for the TR
Temp. installation…
today
12.9.2011
M.Lenti 22
RICH Schedule V8.42 (back-up)
Mirror Support Design
Mirror Wall Design
Mirror Wall Tender + Contract Preparation
Design for Mirror Supports and Wall Completed
Mirror Support Wall Order
Mirror Support Wall Fabrication
Vessel Tender and Contract preparation
Vessel order
Vessel Fabrication
RICH Vessel Installation
Vessel Installation Completed
Temp. setup for TR
Filling Gas
Temp. Beam Pipe Installation
07/2010 12/2010 07/2011 01/2012 07/2012 01/2013RICHTR
Prolongation ???
Non-conform with baseline planning
TR
Outside beam periods
In this scenario the RICH could only be used if there is a window to prolong the TR in 2013 !
today
12.9.2011
M.Lenti 23
Conclusions
• Lot of progress on many items of RICH• Vessel production (CERN responsibility)
delayed• Mirror support system to be finalized• The RICH is on the critical path for september
2012 technical run
12.9.2011
M.Lenti 24
Richieste Firenze 2012INTERNO Totale: 10.00 1. Riunioni con gli altri gruppi italiani di NA62 e riunioni del gruppo RICH 10.00ESTERO Totale: 64.00 1. meeting di analisi e collaborazione al CERN: 8 MU 32.00 2. Installazione al CERN del rivelatore RICH: 4 MU 16.00 3. Technical run di NA62: 4 MU 16.00 CONSUMO Totale: 153.00 1. Electronic Pool del CERN: noleggio moduli di elettronica 20.00 2. Common Fund della collaborazione NA62 100.00 3. Metabolismo 10.00 4. Installazione al CERN del rivelatore RICH 20.00 5. Noleggio auto al CERN per l'installazione ed il technical run 3.00 APPARATI Totale: 25.00 1. Installazione e test dell'elettronica di front-end del rivelatore RICH (CORE 2012) 25.00
Totale NA62 Firenze 252.00
12.9.2011
M.Lenti 25
Richieste Perugia 2012INTERNO Totale: 18.00 1. Riunioni e attività in Italia per RICH e TDAQ (Firenze, Pisa, Frascati) 12.00 2. Riunioni in Italia 6.00 ESTERO Totale: 76.00 1. Installazione rivelatori (RICH, TDAQ): 4 m.u. 16.00 2. Commissioning run: : 6 m.u. (previsione durata run: 6 settimane) 24.00 3. Riunioni di analisi e di collaborazione (7 riunioni) al CERN o presso altre istituzioni estere,
riunioni e "working group" sul rivelatore e per la preparazione del commissioning run (9 m.u.) 36.00 CONSUMO Totale: 32.50 1. Installazione rivelatori al CERN 10.00 2. Metabolismo ricerca 10.00 3. Attività TDAQ (1 PC x sviluppo firmware L0: 2k€; 2 schede di rete 10Gbit: 1k€; TDAQ spare: 1 Tel62: 3.5k€; 2 TDCB nuova produzione con cavi: 3k€; consumo di laboratorio per riutilizzo
elettronica esistente di NA62 per lettura CHOD di NA48 nel commissioning run 2012: 3k€) 12.50 TRASPORTI Totale: 1.00 1. Trasporto materiale ordinato 1.00LICENZE-SW Totale: 2.00 1. Licenze Software Altera (convenzione Università) 2.00APPARATI Totale: 25.00 1. Completamento HV RICH (residuo CORE) 25.00SPSERVIZI Totale: 6.00 1. Spese consumo per servizi 6.00
Totale NA62 Perugia 160.50 12.9.2011