Re: [BLAST_SHIFTS] Cerenkov boxes hardware OR'ed for trigger

From: Karen Dow (kdow@mit.edu)
Date: Mon Dec 01 2003 - 08:53:59 EST


Tavi,

         I was counting from 0, so it's bit 11, the 12th bit. Sorry for
the confusion.

         Also, I had forgotten about the cosmicTOF_CC.settings requiring
the Cerenkov bit to match with the TOF number. Thanks for fixing it.

                                         Karen

At 01:27 PM 11/26/2003 -0500, Octavian F Filoti wrote:

>Karen it is not bit# 11, but #12!!!
>Bits 11-14 were used! I already fixed that for #12, remember when we
>talked!
>
>-----------------------
>Octavian F Filoti
>Nuclear Physics Group
>Univ. of New Hampshire
>9 Library Way
>Durham, NH 03824
>phone: (603)862-1691
>FAX: (603)862-2998
>email: ofiloti@unh.edu
>
>On Wed, 26 Nov 2003, Karen Dow wrote:
>
> >
> > Several weeks ago, I hardware OR'ed the Cerenkov boxes for each
> sector, so
> > now only bit 11 of each sector MLU is used for the Cerenkov. Bits 10-13
> > used to be used; bit 10 will be used in the future for the BATs.
> >
> > There was no need to change any trigger .settings files, as the
> Cerenkov
> > bits were always X'ed. There was never a requirement that a certain
> > Cerenkov fired for a given TOF. The change should be transparent; this
> > note is just for posterity.
> >
> > Karen
> >



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