CMS Project at UR Pawel de Barbaro University

CMS Project at UR Pawel de Barbaro University of Rochester Do. E Review July 15 -16, 2002 U. Of Rochester DOE Review, July 15 -16, 2002: P. de Barbaro, CMS 1

Participants Task D Participants (CMS-HCAL) Faculty: Prof. A. Bodek Research Faculty: Dr. P. de Barbaro, Dr. H. Budd, Dr. W. Sakumoto Research Associate: Dr. Y. Chung Task B Participants (CMS-HCAL) Faculty: Prof. P. Slattery Research Faculty: Dr. G. Ginther Task D Participants (CMS-TOB) Faculty: Prof. P. Tipton Research Faculty: Eva Halkiadakis, Andy Hocker Graduate Students: Ricardo Eusebi U. Of Rochester DOE Review, July 15 -16, 2002: P. de Barbaro, CMS 2

System Overview HOB HB HF HE U. Of Rochester DOE Review, July 15 -16, 2002: P. de Barbaro, CMS 3

HCAL - Engineering in Design WH 6 HCAL Engineering U. Of Rochester DOE Review, July 15 -16, 2002: P. de Barbaro, CMS 4

Responsibilities CMS Projects at U. of Rochester: HCAL • Optical Readout System for Hadron Barrel (HB) Calorimeter • Assembly&Integration of Readout boxes for HB, HE and HO • construction of Motion Table for H 2 test beam at CERN Tracker • construction of Silicon Strip Tracker (Tracker Outer Barrel, TOB), talk by P. Tipton U. Of Rochester DOE Review, July 15 -16, 2002: P. de Barbaro, CMS 5

CMS HCAL Outline • • • Absorber Optics Readout Box HPDs Other tasks Conclusions U. Of Rochester DOE Review, July 15 -16, 2002: P. de Barbaro, CMS 6

Activity at CERN • Scintillators installed into HB- wedges at bldg 186 • All HB- wedges tested with radioactive source system, pronounced “ready” • Wedges transported to SX 5 for installation into cradle. • HB+ wedges at 186, scintillator installated and tested. • Assembly of HB+ into cradle in Sep 02. U. Of Rochester DOE Review, July 15 -16, 2002: P. de Barbaro, CMS 7

HB- Wedges at Bldg 186 U. Of Rochester DOE Review, July 15 -16, 2002: P. de Barbaro, CMS 8

HB Absorber • All HB- and HB+ wedges at CERN • HB- assembled at SX 5, HB+ wedges to be assembled in Sept 2002. • HB- Wedge 16 (damaged during transport) has been rebuilt, tested U. Of Rochester DOE Review, July 15 -16, 2002: P. de Barbaro, CMS 9

HB- Assembly at SX 5 U. Of Rochester DOE Review, July 15 -16, 2002: P. de Barbaro, CMS 10

HB- Assembly at SX 5 U. Of Rochester DOE Review, July 15 -16, 2002: P. de Barbaro, CMS 11

Assembled HB- Barrel in SX 5 U. Of Rochester DOE Review, July 15 -16, 2002: P. de Barbaro, CMS 12

Lab 5 Factory • HB Optics factory in final phase. • Will be winding down in December. (Need to repair/replace megatiles for HB-16). Reduce staffing from 13 to 5. • Continue to build optical cables for HB and fiber parts for optical decoder units. • Factory will redirect to work on components for RBX’s, HV, LV, electronics components. U. Of Rochester DOE Review, July 15 -16, 2002: P. de Barbaro, CMS 13

Lab 5 Optics factory (HB megatile production) U. Of Rochester DOE Review, July 15 -16, 2002: P. de Barbaro, CMS 14

Other Optics tasks Improve performance of optical cables • Task taken over from UIC. • Problem: tests at CERN this summer indicated that cables are very hard to install and connect/disconnect. • Solution: increasing slightly (1. 5 mils) hole size for alignment pins can improve connection/disconnection, without compromising RMS of light transmission U. Of Rochester DOE Review, July 15 -16, 2002: P. de Barbaro, CMS 15

Optical cable layout U. Of Rochester DOE Review, July 15 -16, 2002: P. de Barbaro, CMS 16

Placement of readout boxes U. Of Rochester DOE Review, July 15 -16, 2002: P. de Barbaro, CMS 17

HB RBX Assembly Full RBX with 19 ch RMs RBX Interior -- HV distributor and backplane U. Of Rochester DOE Review, July 15 -16, 2002: P. de Barbaro, CMS 18

RBX Readout Module The readout module (RM) integrates the HPD, front end electronics, and digital optical drivers. PRR passed March 1 -2. HB Production begun – mechanics only. HE in design. Optical Sorter HV Interface Card HPD Mount Electronics cards U. Of Rochester DOE Review, July 15 -16, 2002: P. de Barbaro, CMS 19

Optical decoder unit (ODU) U. Of Rochester DOE Review, July 15 -16, 2002: P. de Barbaro, CMS 20

ODU: part facing HPD U. Of Rochester DOE Review, July 15 -16, 2002: P. de Barbaro, CMS 21

Hybrid Photo Detectors (HPDs) U. Of Rochester DOE Review, July 15 -16, 2002: P. de Barbaro, CMS 22

RBX production status • HB • • HB RBX shell parts completed, at Lab 5 ready for assembly HB ODUs finished, at Lab 5 Backplanes finished, at FNAL Assembly work started at Lab 5 • HE • Design almost complete • Second mechanical prototype in construction at Ole Miss • Subassemblies for ODUs ready. ODUs will be built at Notre Dame factory this summer (Quark. Net) • HE RBX parts scheduled to be completed in September 02. • HO • Design starting this month. • Will have a PRR at CERN during September CMS week. • Plan to complete all RBX’s by March 1 , 03 U. Of Rochester DOE Review, July 15 -16, 2002: P. de Barbaro, CMS 23

Near Term / 2002 Test Beam • Will instrument HB+ wedges in November • Test beam calibration of wedges of HB+ in summer of 2002 • Will use second generation QIE’s running at 40 Mhz. • CCAs • GOL / VCSEL into HTR DCC Prototypes • Assemble HB+ in September 2002 U. Of Rochester DOE Review, July 15 -16, 2002: P. de Barbaro, CMS 24

Conclusions Tasks Completed: • HCAL Barrel absorber ready • Production and installation of Scintillator megatiles completed • HB- barrel assembled and tested New tasks for Rochester: • Integration and testing of readout boxes at Lab 5 at Fermilab (CMS Rochester Techs under Rochester upervision). • Installation and Commissioning of US CMS detector at CERN (Pawel de Barbaro will become US CMS Coordinator at CERN in March 2003) U. Of Rochester DOE Review, July 15 -16, 2002: P. de Barbaro, CMS 25

Front End Electronics • QIE chips at FNAL (first submission). • Chips are ~ fully functioning. Front end noise being studied. • CCA chips at FNAL. Problem with communication to chip. (Bug in layout solved by laser microsurgery). Seems fully functional! • A chance that both CCA and QIE can skip a generation of submissions, have production parts by March 02. • GOL (Gigabit Optical Link) Serializer prototype chip at FNAL. Being tested at 45 Mhz, works fine. (Normal operation 40 Mhz). • VCSEL chosen, parts being ordered. • Fiber optic cable plant being finalized. (Discussion this week at CERN). U. Of Rochester DOE Review, July 15 -16, 2002: P. de Barbaro, CMS 26

FE/DAQ Electronics U. Of Rochester DOE Review, July 15 -16, 2002: P. de Barbaro, CMS 27

FE Readout Card VCSEL U. Of Rochester DOE Review, July 15 -16, 2002: P. de Barbaro, CMS 28

Six channel FE Proto U. Of Rochester DOE Review, July 15 -16, 2002: P. de Barbaro, CMS 29

HCAL – Opto-Link U. Of Rochester DOE Review, July 15 -16, 2002: P. de Barbaro, CMS 30

VCSEL/GOL Testing Custom VCSEL Packaging U. Of Rochester DOE Review, July 15 -16, 2002: P. de Barbaro, CMS Prototype GOL 31