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Archived Messages for CLAS_DRIFT_CHAMBERS_1997@cebaf.gov: region 1 cables

region 1 cables

David Tedeschi (tedeschi+@pitt.edu)
Wed, 07 May 1997 17:33:46 -0400 (EDT)

Dear DC Experts,
While enjoying myself re-routing all of R1 signal cables to the ADB inputs
I noticed that a few of the cable lengths were different.

R1 S6 AX 2.1,2.2,2.4,3.1,3.2,3.3 ST 2.1,2.2,2.3
are about 30 feet longer than the rest.

Same for
R1 S4 AX 7.3, 7.4, 7.5, 7.6.

(Actually most are about 30 feet longer, 1 about 25 feet, one about 20
feet. I only took rough measurements because it is impossible to measure
the entire lengths, but the cables are roughly even on the chamber end. )

These cable differences may account for the time shifts seen in region 1.

Also, I noticed that there were 4 cables missing from R1 sector 4. These
are AX 4.3,4.4,4.5,4.6. They are not in the bundle at all. Thus they
need to be made and run if we want to se all of Sector 4 STB 4 axial.

Regards,
DaveT

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| David J. Tedeschi |
| Department of Physics and Astronomy (Email) tedeschi+@pitt.edu |
| University of Pittsburgh (Phone) 412-624-9215 |
| Pittsburgh, PA 15260 (Fax ) 412-624-9163 |
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