RICH INFN Perugia INFN Firenze CERN Separate pions

RICH INFN Perugia INFN Firenze CERN • Separate pions from muons <1% level between 15 and 35 Ge. V/c • Track time at 100 ps level • Partecipate in the L 0 trigger 17 m Beam Pipe PM lodging disk • Neon as Cherenkov radiator • mosaic of mirrors (17 m focal length) • two spots with PM (1000 PM per spot) • beam pipe passing through M. Lenti Mirrors

NIM A 593 (2008) 314 -318 NIM A 621 (2010) 205 -211 RICH prototype results 15 Ge. V/c 35 Ge. V/c m suppression: 0. 7% ( 15<p<35 Ge. V/c) 12. 9. 2011 M. Lenti 2

Milestones: • Design for mirror support: 30. 06. 2011 • Vessel installation ready: 30. 04. 2012 • Mirror and PM installation complete: 2. 12. 2012

Vessel (CERN): vacuum proof ! Gas system simplified: make vacuum, then inject pure Neon 12. 9. 2011 M. Lenti 4

Vessel tender not submitted yet (CERN responsibility) 12. 9. 2011 M. Lenti 5

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 6

RICH PMs PM Time resolution measurements made in Perugia 12. 9. 2011 M. Lenti 7

PM HV dividers SOLDERED HV+ (GND) TOP AND BOTTOM SMD COMPONENTS SIG OUT COAX SHIELD AND HV+ SOLDERED TOGETHER SOLDERED HV- CONNECTION 12. 9. 2011 M. Lenti 8

HV Filter board BRACKET TO FIX BOARD TO THE 9 U EMPTY CHASSIS SHV CONNECTOR FROM CAEN HV-PS 32 CH HV TO PMT SPACERS SUPPORT FOR SECURITY COVER 12. 9. 2011 M. Lenti 9

Electronics chain VME RICH FE 32 CH BOARD PRE_NINO BIPOLAR HV CABLE GAIN NINO_CHIP VHDCI CONN TELL 62 DIFF PMT RG 174 50 OHM TERMINATOR 12. 9. 2011 PCB MICROSTRIP 50 -52 OHM DIFFERENTIAL FOR NINO CHIP MATCHING M. Lenti PCB MICROSTRIP 130 OHM DIFFERENTIAL FOR CABLE MATCHING MADISON UNIVERSAL TM CABLE FOR 130 OHM DIFFERENTIAL FOR LVDS SIGNAL 10

FE 340 board mm MAX. 220 mm MIN. 120 mm 32 CHANNEL FRONT-END AREA 32 LEMO COAX SIGNAL FROM PMT 360 mm 8 CH NINO CHIP DC/DC CONVERTER 3. 3 TO 2. 5 V J 1 VME CONNECTOR 8 CH NINO CHIP 32 CH VHDCI CONNECTOR TO TELL 62 G 8 CH NINO CHIP 4 CH MULTIPLICITY TO TELL 62 8 CH NINO CHIP I 2 C CAN BUS CONNECTORS CAN 12. 9. 2011 M. Lenti CUSTOMIZABLE FRONT END (“FE”)AREA “DAQ” AREA 11

DAQ TEL 62 board equipped with 4 HPTDC: 512 ch 4 TEL 62 for all PM (2000 ch) 1 TEL 62 for “multiplicity” trigger (250 ch) Perugia group works on the TEL 62 fimware and trigger • See M. Sozzi report for details • • 12. 9. 2011 M. Lenti 12

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 13

Lab’s Optical Measurements Lab 12. 4. 2011 Dummy Mirror in Clean Room 12. 4. 2011 12. 9. 2011 M. Lenti 14

Hex 10 in Box 3 (28. 04. 2011) Hex 10 in box (29. 04. 2011) Hex 10 in Optics Lab (29. 04. 2011) 12. 9. 2011 M. Lenti 15

Horiz. Sigma Vert. Sigma Horiz. *Vert. Sigma(2) Hex 10 Dist Laser-Mirror: 33. 875 m Dist Mirror-Diode: 33. 985 m Minimum: +0. 6 cm R = (33. 875+33. 985+0. 006)/2 = 33. 933 m F = R/2 = 16. 967 m σX(min) = 0. 20 mm σy(min) = 0. 13 mm √(σX*σY)(min) = 0. 12 mm Fx-Fy: +4. 2 cm 12. 9. 2011 M. Lenti 16

A. Cassese 12. 9. 2011 M. Lenti 17

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 barycenter Actuating ribbon works against g and gives vertical axis alignment A second actuating ribbon at 90 deg gives the horizontal axis alignment Piezo motors are used to pull the ribbons System heavily tested in Lab in Firenze 12. 9. 2011 M. Lenti 18

Mirror Support Panel Goal: engeneer project by the end of 2011, then go for tender (INFN responsibility) 12. 9. 2011 M. Lenti 19

Milestones RICH 2012 • Installazione dei PM e dell'elettronica di FE • Installazione degli specchi 12. 9. 2011 M. Lenti 31. 08. 2012 20

RICH Schedule V 8. 4 (baseline) Assumes Rich vessel in time for TR today Very short time window To get ready for the TR Temp. installation… 12. 9. 2011 M. Lenti 21

RICH Schedule V 8. 42 (back-up) Non-conform with baseline planning today TR Outside beam periods 12. 9. 2011 M. Lenti 22 In this scenario the RICH could only be used if there is a window to prolong the TR in 2013 !

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 23

Richieste Firenze 2012 INTERNO Totale: 10. 00 1. Riunioni con gli altri gruppi italiani di NA 62 e riunioni del gruppo RICH 10. 00 ESTERO 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 NA 62: 4 MU 16. 00 CONSUMO Totale: 153. 00 1. Electronic Pool del CERN: noleggio moduli di elettronica 20. 00 2. Common Fund della collaborazione NA 62 100. 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 NA 62 Firenze 12. 9. 2011 252. 00 M. Lenti 24

Richieste Perugia 2012 INTERNO 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 L 0: 2 k€; 2 schede di rete 10 Gbit: 1 k€; TDAQ spare: 1 Tel 62: 3. 5 k€; 2 TDCB nuova produzione con cavi: 3 k€; consumo di laboratorio per riutilizzo elettronica esistente di NA 62 per lettura CHOD di NA 48 nel commissioning run 2012: 3 k€) 12. 50 TRASPORTI Totale: 1. 00 1. Trasporto materiale ordinato 1. 00 LICENZE-SW Totale: 2. 00 1. Licenze Software Altera (convenzione Università) 2. 00 APPARATI Totale: 25. 00 1. Completamento HV RICH (residuo CORE) 25. 00 12. 9. 2011 M. Lenti 25 SPSERVIZI Totale: 6. 00