[BTeam] BT mtg: background info on SCAM

[Alex Bogacz]

> ----- Forwarded Message -----
> From: "Joseph Grames" <grames at jlab.org>
> To: "mcc ops" <mcc_ops at jlab.org>
> Sent: Thursday, April 28, 2016 2:47:28 PM
> Subject: SCAM
> 
> Folks,
> 
> We are planning to upgrade the polarized source laser system this summer, to eventually support 4-hall operations.  It is a rather extensive upgrade, adding a 4th laser and combining all beams to one photogun, upgrading the LLRF for a 4th laser with all readily configurable for two frequencies (249.5/499 MHz), and building a  new SCAM module.  The Service Building Catch All Module is a vital organ at CEBAF, at the intersection of the polarized source beam modes and diagnostic synchronization signals.  Over the last two months a core group of people have been involved in evaluating requirements of the new SCAM module, to achieve desired functionality with improved flexibility and reduced redundancy.  In particular, the ability to add future capability is inherent in the design approach we've taken.
> 
> Please find attached our working requirements document used for this summer's upgrade.  Special thanks to those involved in developing and vetting the document - Roger Flood, John Hansknecht, Scott Higgins, Henry Robertson, Kevin Jordan, Joe Gubeli.
> 
> If you have any concerns or find errors please e-mail them to me no later than May 6th.
> 
> Joe
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