"[BLAST_TOF]" LADS map

From: Michael Kohl (kohlm@mit.edu)
Date: Wed Sep 10 2003 - 18:32:25 EDT


Hi Tancredi,

with the help of Doug and Chris Brown we finished all the cabeling in the
hall today and were right done when the snakes were finished with filling
as well.

My internal convention about the four LADS walls is the following (if you
prefer another, we would just need one more map):

Right sector: One thin (15cm) wall "L15_R" and one thick (20cm) wall "L20_R".
Left sector: One thin (15cm) wall "L15_L" and one thick (20cm) wall "L20_L".

The walls are such that they are 100% symmetric with respect to
left/right sector.
I numerate the (vertical) bars from downstream to upstream counting from 1
to 14. I label the top channels with "U" (up) and the bottom channels with
"D" (down).

Each channel thus results in a name like L15[20]_L[R][01...14]U[D],
e.g L20_R04D or L15_L12U and so on.

Channels L20_R[L]01U[D] don't have phototubes, but we better leave them in
the structure (for the case that Jlab offers us four more tubes).

There are three spare optical fibers on the left sector which I connected
to L15_L07, L15_L08 and L15_L09.

The Base can of L15_L01U is still in the workshop.

In the Dtunnel, I have presently four analog splitter panels per sector.
They are not yet cabeled up.
Each of them has 16 channels (0 to 15). I suggest that we reserve those
channels 0 to 15 of the top panel for L20_L[01...14]U, take 0 to 15 of the
second panel from top for L20_L[01...14]D, L15_L[01...14]U for the third
and L15_L[01...14]D for the four panel from top. Analogously for the right
sector.

I need to add another splitter panel on each sector for the Ohio walls
once they are merged to the new setup (becomes actual during the
shutdown).

The HV cabeling in the Dtunnel has been done halfway by Sebastian, the new
student, and it will be completed tomorrow. Somebody (Adam?) should set up
the Epics GUI tomorrow or on Friday latest. We have sixty (5 slots x 12)
channels for the LADS on each sector, of which we will need only 54. I
suggest to reserve 15 consecutive channels for each set of 14 LADS
channels (with one spare channel for each set).

See you tomorrow,

  Michael

-- 

+-------------------------------------+--------------------------+ | Office: | Home: | |-------------------------------------|--------------------------| | Dr. Michael Kohl | Michael Kohl | | Laboratory for Nuclear Science | 5 Ibbetson Street | | MIT-Bates Linear Accelerator Center | Somerville, MA 02143 | | Middleton, MA 01949 | U.S.A. | | U.S.A. | | | - - - - - - - - - - - - | - - - - - - - - -| | Email: kohlm@mit.edu | K.Michael.Kohl@gmx.de | | Work: +1-617-253-9207 | Home: +1-617-629-3147 | | Fax: +1-617-253-9599 | Mobile: +1-978-580-4190 | | http://blast.lns.mit.edu | | +-------------------------------------+--------------------------+



This archive was generated by hypermail 2.1.2 : Mon Feb 24 2014 - 14:07:29 EST