Dear Djamel, No it is not your software, - what I will like do do with Hiro is during next week to start with your framework and make some changes to it where it is necessary utilizing our best knowledge on the BB counters. To the second suggestion - this is not correct. The adc are linear over the full range- may I suggest reading the Lecroy manual at your leisure, and the effect has to be in the tubes and the best thing to do it to not use Big tubes in this region; This is actually part of the design - where one would use tubes with a smaller number of hits for more central coll. ------------------------------------------------------ Flemming Videbaek Physics Department Brookhaven National Laboratory tlf: 631-344-4106 fax 631-344-1334 e-mail: videbaek@bnl.gov ----- Original Message ----- From: "Djamel Ouerdane" <ouerdane@nbi.dk> To: "brahms-dev-l" <brahms-dev-l@bnl.gov> Sent: Friday, September 14, 2001 6:11 AM Subject: Re: BB vertex > Hi Hiro, > > I am still on vacation but found time to read emails. > Were you using the unofficial software I gave to Flemming ?? > If so, one has to make it available for the whole collaboration. > If not, forget my message :) > > Nice results anyway, and yes, I noticed this strange behaviour at large > ADC values for the big tubes. When I made a slewing correction for them, I > only considered ADC values before adc gaps. > I think it's due to a different linearity after the gap but I'm not sure > how the dual range ADCs work. > > Ciao > Djam > > > Djamel Ouerdane ------------------------------------------o > | Niels Bohr Intstitute | Home: | > | Blegdamsvej 17, DK-2100 Ø | Jagtvej 141 2D, | > | Fax: +45 35 32 50 16 | DK-2200 Copenhagen N | > | Tel: +45 35 32 52 69 | +45 35 86 19 74 | > | http://www.nbi.dk/~ouerdane | > | ouerdane@nbi.dk | > o---------------------------------------------------------o > >
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