Readiness for installation W0 CMS RPC

group

10

W 03 bi gap

out

274

-

2

3

6233

339

335

300

236

276

19

192

271338

334

287

232

277

24

237

74

169320

181

278363

215

239

77

3

258

288

229

272

333

170 322

228

89

101

-

5

214217216

Z Face

12193

79

158

294

188

293 135309

191

95

311

185

344

132

16

176

353

7

171

781666

247

92

2

40

84165

20

194

964

119

8

-

-

-

-

-213 212

70

189

81

161

To be built

Ready at ISR

Tested in Italy or

under testid

All chambers but sect.4/5 will be installed

Jan06 – Feb 06

Missing 1 RB2/sect 4. under testing in Bari.

Expected at ISR at the end of January 06

Installation Sect 4/5 end of August

MB4 sect 9-11 October 8th

Readiness for installation W-1CMS RPC

group

Readiness for next installation sect

10/11 End Feb 06:

1 RB2 under test in Bari

at ISR end Jan06 –ready endFeb06

4

8

351

911

1

2

W -1

--

-

-

-

3 bi gap

out

-

-

-

6

53

2

-

178

240

345

50

352298

319

290

128 124

163

196

349

342

340

348

343

302

305

350

341

346

308

136

9

13

7297

362

101

380

383

361

360

120

321

301

172

12

248

250

256

241

354358356359

355357

244

254 255

252

253

324

245246

197

251

325

326

260

262

264

261

263

265266

364

1RB1 in construction in Bari. Expected at ISR at the end of

January 06

2 RB2 under test in Bari. At ISR at the end of January

6 RB2 under construction in GT. Expected at ISR in March

06.308

To be built

Ready at ISR

Tested in Italy or

under testid

At ISR

All chambers ready in May

Installation remaining 8 sectors:

Beginning Sept.06

Readiness for installation W-2CMS RPC

group

Production site

To be built

Ready at ISR

Tested in Italy or

under testid

At ISR8

372

11

12

W -2

-

-

-

-

3 bi gap

out

-

-

6

5

4

3

2

Z (-) Face

-

30

249

238

230

58

85

5313

160 159

131

57

310

312

243

382

381

384385

386

387

388

374

375 376377

378

379

195

bb

259

365

367

366

368

369

391

242

394

371370

389

28

398

397

400

392

393

390

396

399

2RB1 in construction in GT in January. Expected at ISR in

March 06

5 RB2 under test in Bari. At ISR at the end of January

9 RB2 under construction in GT. Expected at ISR in March

06.

Readiness for next installation sect

10/11 End Feb 06:

1 RB2 to be tested in Bari

at ISR end Jan06 –ready end Feb06

All chambers ready in June

Installation remaining 8 sectors:

Middle Oct.06

Gas system test:

• Commissioning the final gas distributor DONE ON W+1 and W+2 but not easy operation

• Gas line equalization :

Each CMS gas line supplies in parallel 2 chambers in same station.

Very important to equalize the gas flow between the chambers. Needed in W+2 due to different

input impedance between some chambers. DONE

GAS IN

Additional work on the wheels CMS RPC

group

VALVE

Gas in

Standard Equalization example:

case chamber 2 lower impedence than chamber 1

Chamber 1

Chamber 2

Gas patch panel on the wheel

VALVE

Gas in

HV cables :

1 day HV conditioning test

LV cables: 1 day threshold

setting/reading checks

On flight gas pipes on the sector: 2 days flushing

bubblers at the chamber outputs

Noise test with frequency-meter:1 day

Status

Gas System

•Final gas mixture

•Gas mixture monitor done

•Interlock system done

•Final distributor under

commissioning

Chamber test

6 sector/10 sectors tested

•Conditioning under HV

•Connectivity check

•Noise test

Planning1 sector/week will be

improved next week using

the final gas distributor

Chamber commissioning on wheel W+1 M.Maggi

A.Colaleo

Chamber commissioning on wheel W+1 RPC group

Problems Found:

1)1 disconnected connector (8 strips) from front-end board

2)1 Distribution Board was accidentally broken during operation

3)High voltage problem inside in RB2 sect 5 need to replace the chamber. But the

chamber have be put under test now. Ready middle of Jan 06.

First 2 chambers repaired last week with help of DT group –about 3 hours of work each

chamber:

Both muon stations pushed out about 30 cm on Z- side

During operation cooling from patch panel and DT cables/ground cables were

disconnected

The commissioning must be finished by 9 Jan. 06 due to cabling activity on W+1

but we plan to finish the test one week later.

CMS RPC

group Commissioning on wheel W+2

The commissioning was postponed due to the cabling activity

In order to save time a fast check of all front-end board started with a portable frequency-

meter

Up to now Sect 8/9/12 checked. Aim to finish middle December.

Problem found :

1 Broken FB in sect 9

Repaired last week : muon station was pulled out of about 70 cm with cradle on Z- side

The commissioning can start during the cabling operation breaking on W+2

Commissioning plan: 9 Jan- 10 Feb 8 sectors

5-15 Feb. Sect 10/11

From Middle of Feb. test sect 10/11 with final cables and LBB+RBC

W+2 commiss.W+1 commiss.

Ready in Jan06

Ready in May06

Ready in July 06

Ready in Aug 06

Ready in June 06

RPC readiness

Inst. End Aug06

Inst. Beg Sept 06

Inst. Middle Oct. 06

Inst. End Sept 06

Inst end 06- beg 07