Calibration periods and hardware epochs. Information is from Greg's backpropagation note 5139, Jim's spreadsheet, Michelle's spreadsheet, and the Data Quality web page Data Epochs link. I have checked run/LBN numbers using the DB interface. The numbers at the left are the proposed hardware epoch numbers to beentered into the DB. 10 Period A Start of IIa, full solenoid current, NIM readout used Dates: April 19, 2002 - Aug 23, 2004 Runs 151816-196584 Aug 23, 2004 marks the beginning of the 2004 shutdown. Actual LBNs with data-taking: 1139390-3536163 Elizabeth has LBNs 1129853-3736259 (runs 151199-201527) This range starts on April 14,2002 (a few days before the official start of RunII), and ends on Dec 6, 2004, a day before the end of the 2004 shutdown. Last LBN of this period:3736259 20 Period B Same as above but solenoid at reduced current Dates: Dec 7, 2004-Dec 19, 2004 Greg has this range as Runs 201537-202111 (LBNs 3737326-3756474) Elizabeth has LBNs 3736260-3757957 (runs 201527-202138). Elizabeth's run range includes store 3854 (runs 202120 and 202121), which Greg leaves out. This is a 15 min store, so it probably doesn't matter, but Elizabeth is probably right. Both of Elizabeth's choices are in ZB runs. Last LBN of this period: 3757957 30 Period C Same as above, but baseline shift removed. Dates: Dec 19, 2004 - March 17, 2005 Greg's run range 202152-204805 (LBNs 3759353-3921400) Elizabeths LBN range is 3757958-3921401, which starts in run 202138, a ZB run before run 202152 which is the first and only run in store 3862. The last LBN of run 204805 is actually 3921401 (a stoprun record), the run report seems to have a mistake. Last LBN of this period: 3921401 40 Period D Same as above, but deadtime correction made Dates: March 17, 2005-Oct 20, 2005 Greg's run range 204807-211213 (3921408-4317925) Note that Greg's back propagation note has the starting run as 204806, but there is no such run. Elizabeths LBN range is 3921405-4317937. The first LBN is not in a run, it is between runs 204805 and 204807. The last LBN is also not in a run, it is between runs 211213 and 211214. This change takes place DURING store 4460, between runs 211213 and 211214. Last LBN of this period: 4317937 50 Period E Switch from NIM to VME, all else the same Dates: Oct 20, 2005 - Feb 22, 2006 (end of IIa) Greg's run range 211214-215670 (4317950-4536191) Elizabeth's LBN range is 4317939-4715213. The first LBN is not in a run, it is between runs 211213 and 211214. The second LBN is from a ZB run on May 8, 2006, during the long 2006 shutdown. Last LBN of this period: 4715213 60 Period E', start of IIb, during Si "bad tick" era New LM scintillator, preamp cards, and HV settings. Start of IIb, but still using the old luminosity constant. The last 11 ticks of the Si were not read out properly. Dates: Feb 22, 2006-Aug 23, 2006 Physics runs: June 13, 2006-Aug 23 ,2006 Note that the first physics run of IIb was 222028, on June 13, 2006, corresponding to LBN 4794617. Last LBN of this period: 4938770 Greg's run range for the full period E (no division into Si bad tick era)215671-225852 (4536204-5002054). Note that 225852 is not in a store, it is right before the start of store 4989. Elizabeth's LBN range for E' (also no bad silicon division) is 4715214-5002056. The first LBN is on May 8, 2006, and the second LBN is not in a run, but just after 225852. 70 Period E', after bad tick problem is fixed Firmware change in Si readout fixes the bad tick problem Still using the old lumi constant Dates: Aug 23, 2006-Sept 29, 2006 Runs: 224487-225852 (4938771-5002056) Last LBN of this period: 5002056 80 Period F New luminosity constant implemented online--this is really a software change but as online software I have given it a hardware number. Start date: Sept 29, 2006 Greg's first run 225853 (5002058) Elizabeth's first LBN 5002057, which is not actually a valid LBN but it would have been right before the start of run 224853. Last LBN of this period: 5569252 90 Change from measuring deadtime to livetime Start date: Aug 3, 2007 First run: 234886 First LBN: 5569253 Last LBN: 5741803 100 New scintillator and HV settings after 2007 shutdown Starting date: Oct 28, 2007 Scintillator replacement was complete, 9/18/07 First physics run 237342 First LBN: 5741804 Last LBN: 5743914 110 HV changed in LM detector Dates: Oct 29, 2007 - Feb 22, 2008 Change occurred at 18:33 *during* Run 237403, first LBN 5743915 Last LBN of this period: 5952579 120 HV changed in LM detector Dates: Feb 22, 2008 - Aug 7, 2008 This change occurred before the start of Run 240278, in store 5924 First LBN with new HV setting: 5952580 Last LBN of this period: 6223647 130 HV changed Aug 7, 2008, between stores 6346 and 6348. Last run of 6346 is 244566, first run of 6348 is 244579 First LBN with new setting: 6223648. Last LBN of this period: 6554900 140 HV changed Jan 21, 2009, right before store 6747 First physics run is 248950 First LBN with new setting: 6554901 Last LBN of this period:6722397 150 HV changed May 6, 2009, right after store 7021 First physics run with new HV: 251922 First LBN with new HV: 6722398 Last LBN of this period:6931909 160 New scintillator, new HV settings, Sept 4, 2009 First physics run with new scintillator and HV:255328 First LBN:6931910 Last LBN:6952405 170 HV changed Sept 16, 2009 First physics run with new HV:255384 First LBN:6952406 Last LBN:6982007 180 HV changed Oct 5, 2009, after store 7239 First physics run with new HV:255889 First LBN with new HV:6982008 This period is ongoing =================================================================== LBN boundaries for the above hardware periods Hardware period: ending LBN 10: 3736259 20: 3757957 30: 3921401 40: 4317937 50: 4715213 60: 4938770 70: 5002056 80: 5569252 90: 5741803 100: 5743914 110: 5952579 120: 6223647 130: 6554900 140: 6722397 150: 6931909 160: 6952405 170: 6982007 180: ongoing