Andris Skuja: US CMS Annual DOE/NSF Review, May 19, CMS HCAL Report US CMS HADRON CALORIMETER REPORT Andris Skuja University of Maryland US CMS Annual DOE/NSF Review Brookhaven National Laboratory May 19, 2003

Andris Skuja: US CMS Annual DOE/NSF Review, May 19, Hadronic Calorimeter: HCAL Had Barrel: HB Had Endcaps:HE Had Forward: HF HB HE HF HO

Andris Skuja: US CMS Annual DOE/NSF Review, May 19, Sampling calorimeter: brass (passive) & scintillator (active) Coverage: |  |<1.3 Depth: 5.8 int (at  =0) segmentation:  x   resolution: ~ 120 %/ 0.087x o Completed & assembled 17 layers longitudinally,  x  = 4 x 16 towers  HCAL : HB Calorimeter (Barrel)

Andris Skuja: US CMS Annual DOE/NSF Review, May 19, Total number of int till the last sampling layer of HB is < 8 HO: 2 scint. layers around first  layer (extend to~11 int ) ~ 5% of a 300 GeV  energy is leaked outside the HB HO improves  resolution by ~10% at 300 GeV & linearity Test Beam 2002 Ring 0 Ring 1 Ring 2 HCAL : HO Calorimeter (Outer)

Andris Skuja: US CMS Annual DOE/NSF Review, May 19, Completed, assembled, HE-1 installed Sampling calorimeter: brass (passive) & scintillator (active) Coverage: 1.3<|  |<3 Depth: 10 int segmentation:  x   resolution: ~ 120%/ 0.087x o 19 layers longitudinally HCAL : HE Calorimeter (Endcap)

Andris Skuja: US CMS Annual DOE/NSF Review, May 19, Steel absorbers, embedded quartz fibres // to the beam Fast (~10 ns) collection of Cherenkov radiation. Coverage: 3<|  |<5 segmentation:  x  Depth: 10 int 10 o x 13  towers Fiber insertion finished by Nov 03 HCAL : HF Calorimeter (Forward)

Andris Skuja: US CMS Annual DOE/NSF Review, May 19, HCAL : HE and HB Back-flange 18 Brackets 3 Layers of absorber HE-1 re-installed on YE-1 in Jan/Feb Only 3mm droop. Mount HE+1 by end of 2003, HB complete, install onboard electronics by Q2-04

Andris Skuja: US CMS Annual DOE/NSF Review, May 19, HBHB Both HCAL half-barrels are complete and in their alcove positions at the CMS hall. Starting in Autumn 03, electronics will be installed. After a burn-in period, vertical slice operations will begin and continue until the CMS magnet test in late 2005.

Andris Skuja: US CMS Annual DOE/NSF Review, May 19, Permanent H2 Testbeam Facility

Andris Skuja: US CMS Annual DOE/NSF Review, May 19, HCAL Completion and M&O HCAL Deliverables are stand-alone working calorimeter modules (HB+, HB-, HE+, HE-, HF+, HF-, 5 units of HO) that are installed and cabled up, but not operating in an integrated manner. This will be done by early ’04. Delivery includes HPD’s, Electronics (FE/TRIDAS) and Optical Links from Detectors to Underground Counting Room Test beam calibration (’02, ‘03) is NOT M&O Spares and components needed to keep HCAL operational are NOT M&O. There is a vertical slice operations period before installation underground. This is a period of M&O Test beam studies called for by operational experience IS M&O (’04 onward) Technicians and engineers required to keep an operating sub-component of HCAL operating (independent of when) ARE M&O Physics and simulation software development, calibration data base maintenance IS M&O

Andris Skuja: US CMS Annual DOE/NSF Review, May 19, HCAL Schedule Blue = Project; Green = M&O

Andris Skuja: US CMS Annual DOE/NSF Review, May 19, RBX Status Efforts in the previous calendar year have been dominated by preparations for test beam. The RBX’s house RMs which contain photodetectors (HPD’s for HB and HE), the Front End electronics and Optical Links all in a single Unit. They also house LV/HV Units, Calibration Units and Control Modules. The HB RBX’s are complete, except for Need to complete cooling channels for full RM production (for 160 units) Need CCM (40 units) Need Calibration modules (40 units) Need LV modules (40 units) Services/integration items The HE RBX’s are complete except for the items above The HO RBX design is being finalized (including RM’s)

Andris Skuja: US CMS Annual DOE/NSF Review, May 19, HE RBX Assembly

Andris Skuja: US CMS Annual DOE/NSF Review, May 19, Shield Wall SBSSBS HPD FE MODULE 12 HTRs per Readout Crate, 2 DCC FRONT-END RBX Readout Box (On detector) READ-OUT Crate Trigger Primitives Fibers at 1.6 Gb/s 3 QIE-channels per fiber QIE CCA GOL DCCDCC TTC GOL CCA HTRHTR HTRHTR CAL REGIONAL TRIGGER MHz MHz CCA S-Link: MHz Rack CPU FE/DAQ Electronics CLKCLK HTRHTR

Andris Skuja: US CMS Annual DOE/NSF Review, May 19, R&D phase over except for Understanding a few odd-acting tubes: Continuing lifetime tests under several different HV conditions Understanding the test beam data from last summer Irradiation of selected tubes Status: Of the 88 still in house, 32 are fully tested, but not yet graded The 56 left are mostly tested. We have accepted 92 and rejected 22 (which have been returned) We have 22 in standby (small discrepancies or odd behavior) The best guess for yield is therefore 114/136 = 84%, since the standby category would have technically met our contractual specifications. Out of 224 production tubes at UMN, 136 have been fully tested/graded HPD Acquisition & Testing

Andris Skuja: US CMS Annual DOE/NSF Review, May 19, Front End Electronics Principal components: 1. QIE (charge integrator and encoder) Fermilab ASIC Production wafers are in hand (QIEs meet specs) Noise levels electrons rms 2. CCA (channel control ASIC) Fermilab ASIC. Packaged & tested Production chips are in hand 3. GOL (gigabit optical link) CERN ASIC Proto GOL ASIC tested - ok Gigabit Ethernet protocol at 1.6 Gbits/s 2 Engineering wafers back from Fab. – have been packaged and are being tested Design work under way for GOL tester 4. L4913 (rad hard voltage regulator) STC ASIC from CERN specifications 5. HFE419X-521 (connectorized VCSEL diode) Honeywell standard 2.5 Gbit/sec device

Andris Skuja: US CMS Annual DOE/NSF Review, May 19, (Pre-) Production FE Card

Andris Skuja: US CMS Annual DOE/NSF Review, May 19, FE Status Summary 1.Steady Progress QIE development/bench studies – began Front-end electronics are on schedule Very little schedule float for GOL Infrastructure at SX5 for burn-in and slice tests must be provided 200 Pre-prod cards have been built Feb/Mar’03 3. Ramping up the nested production, test and assembly lines for readout modules 4. Complete analysis of board level radiation testing 5. Full Production to start July/Aug. ‘03 6. Development of a low-noise cable and connector configuration for the HF photomultipliers

Andris Skuja: US CMS Annual DOE/NSF Review, May 19, HCAL TRIDAS/DAQ STATUS Collaboration of BU, Fermilab, Maryland and Princeton Consists of HTRs, DCCs, Clock, PC Interface Status of Principal Components DCC: final boards are produced, firmware in progress HTR: Test Beam prototypes are finished, Firmware in progress, checkout for production boards this summer. Final production anytime after that. Clocking scheme is defined and prototypes done PC interface is specified and well understood

Andris Skuja: US CMS Annual DOE/NSF Review, May 19, Pre-Production Prototype All (known) hardware features are implemented Firmware underway for TB03 - similar to final 2 units under test; 8 more ready to stuff Based on D0/CMS motherboard and link cards (all produced) S-Link 64 at front panel TTC, sTTS (RJ-45's on front panel) Maryland TTCRx Mezzanine Data Concentrator (DCC)

Andris Skuja: US CMS Annual DOE/NSF Review, May 19, HTR Rev 3 Rev 3 will be used in the 2003 testbeam 30 built, tested & shipped to CERN

Andris Skuja: US CMS Annual DOE/NSF Review, May 19, HCAL Calibration Goal: Calibrate from test beam to 3 TeV. Time HCAL electronics. Monitor performance, including radiation damage. Tools: 1. Nitrogen laser distributed to each sub-detector. Excites scintillator 2. Laser injects light to photo-detectors. 3. LEDs (fast) inject light to photodetector. Programmable pulser. 4. Moving wire radioactive source for long term calibration. 5. Charge injection to ADC’s (QIE). Specialized calibration modules designed and built to achieve goals.

Andris Skuja: US CMS Annual DOE/NSF Review, May 19, Calibration Modules Inside Readout Boxes HB Module HE Module

Andris Skuja: US CMS Annual DOE/NSF Review, May 19, HCAL DCS Status DCS is the Detector Control System. It monitors the Detector and performs what used to be called “Slow controls” The low level servers of HCAL control subsystems are almost ready. All defined server prototypes tested during beam-test in June-September of Bugs found and fixed. HCAL is in the vanguard of DCS on CMS

Andris Skuja: US CMS Annual DOE/NSF Review, May 19, HF status The HF is a diversified project consisting of contributions from many nations as well as CERN. All detector mechanical components (wedges, strongbacks, backplanes) have been delivered ahead of schedule and are at CERN. Production of HF tables is well advanced: for the first one, the welding and thermal treatment is done and is being machined now, for the second, the welding is complete. Production of the support outer shield has started for the first HF. Contracts for machining placed. Expect delivery of first table+shields at end of September 03. Second set by spring All PMTs have been delivered to IOWA and testing is >90% complete 85% of quartz fibers have been delivered to CERN and are being cleaved and bundled in Hungary 21/36 wedges will be completed in May ‘03

Andris Skuja: US CMS Annual DOE/NSF Review, May 19, Fiber stuffing at CERN

Andris Skuja: US CMS Annual DOE/NSF Review, May 19, HCAL M&O There was a Lehman review at FNAL on April 8, 9 & 10. The M&O proposal for CMS was baselined (budget approved). Engineering personnel and techs at CERN for detector maintenance (shared with EMU) “Slice Test” as pre-ops during Test Beam work beginning in 2004 Physics monitoring at CERN

Andris Skuja: US CMS Annual DOE/NSF Review, May 19, US HCAL Status Remaining taks: Finish FE/TRIDAS electronics HPD acquisition & testing Finish RBX’s, RM’s,Calibration Modules Contingency use: Electronics Optical Links Scope expansion (including HF fiber) Endgame risks: HPD schedule (also drives RM completion)

Andris Skuja: US CMS Annual DOE/NSF Review, May 19, US HCAL Transition to M&O We expect a smooth transition from Project completion to Pre-ops (M&O phase) if HPD delivery finished in ’03.

Andris Skuja: US CMS Annual DOE/NSF Review, May 19, Recent HCAL Milestone Performance (v33)

Andris Skuja: US CMS Annual DOE/NSF Review, May 19, US HCAL Project Resources Engineer phase out on project is mirrored by an increase of engineering staff at CERN

Andris Skuja: US CMS Annual DOE/NSF Review, May 19, US HCAL M&O Resources M&O resources appear adequate at this point

Andris Skuja: US CMS Annual DOE/NSF Review, May 19, US HCAL FY03 Planning