Date: Tue, 18 Jul 2000 22:47:37 +0200 (MET DST) From: Ezio Torassa Subject: dati Test Beam Q4 Luglio 2000 ================================================================= How to perform offline monitor and analyse Q4 (July 2000) data - Connet to a CERN central Unix machine (ex. cmslx.cern.ch) with a common DT H2 account: username: xxxx (phone to have username and password) password: xxxx - set your DISPLAY env. - change directory: cd monitor - run the program: TBMonitor This online/offline program takes events from the central database, show you the predefined histos and .. when you exit from the program it will create the ntuple "h2bti.ntup" It's a column ntuple. The variables name self-explain the meaning. Warnings: -------- - The working space is limited. You have to rename your NTUPLE and tranfer it elsewhere. (from /shift/cmsc01/data1/H2bAnalysis) - In the window openned by TBMonitor type the "Enter" key after the run number - Do not select "get all events": due to a bug the program crash. You have to get at maximum the number of events taken in the run. - Do not select twice "get events" (i.e. get 10000 events): due to a bug or a wrong choise you will get twice events 1->10000 and once events 10001->20000 ====================================================================== Ezio Torassa INFN Padova Via F.Marzolo 8 I-35131 Padova phone. +39 (49) 8277099 Fax. +39 (49) 8756233 e-mail: torassa@pd.infn.it WEB: http://warco.pd.infn.it/~torassa ======================================================================= ======================================================================= Date: Wed, 19 Jul 2000 17:39:44 +0200 (MET DST) From: Michele Gulmini Subject: file format ****** Test Beam 2000: FLAT-FILE DATA FORMAT ******** All data are stored in 4byte-words, big-endian. ----------------------------------------------- 0xffffffff // START SPILL (35 words) ... 0xf0f0f0f0 // END SPILL SPILL_HEADER (35 words - 140 bytes): word 0: spill_size word 1: spill_id word 2: num_rus // 1 without silicon - 2 with silicon word 3-34: offset[32] // offsets given from // the start of the spill header Example: offset[0] contains the pointer to the data coming from Silicon RU offset[1] the ones coming from dtbx and bti RU. EVENTn: Total Event Word Count Total Event Word Count Event Header: word 0: Run Number word 1: Event Number word 2: not used (0xaaaaaaaa in most runs) word 3: not used (0x55555555 in most runs) word 4: Scint offset (not used) word 5: DTBX offset word 6: BTI offset word 7: WL (beam chamber) offset word 8: SiBT offset Event Data: depends on the detector you are looking at (dtbx, bti, beam chamber or silicon teleschope). ------------------------------------- Michele Gulmini Istituto Nazionale di Fisica Nucleare Laboratori Nazionali di Legnaro via Romea 4, 35020 Legnaro (PD) Italy Tel. +39 049 8068489 E-mail: gulmini@lnl.infn.it -------------------------------------