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[Ext-GDE-62] BDS Change Request - Sep.9, 2006

Dear Colleagues,

I am announcing that GDE Change Configuration Board (CCB) has 
received a change request for the Beam Delivery System (BDS) section 
of ILC Baseline Config Doc from A.Seryi who is representing the 
BDS Area Group (BDS AG).

This change request relates to a proposal to reduce the thickness 
and the population of so-called "muon spoilers" in BDS.

The specifics of the Change Request are available at


The requesters suggest Class 1 as classification for this change
request. The CCB chair tentatively concurs, so it will be treated 
as Class 1 till it is confirmed.

I have asked G.Blair and T.Markiewicz to act as CCB reviewers (to be
confirmed shortly).

Now this request is brought to review by CCB, and is also open to
general discussion. Any members of GDE or GDE-related task groups 
with comments or questions on this request, please, direct them to
ml-ccb@xxxxxxxxxxxx and/or ml-ext-gde@xxxxxxxxxxxx by the end of
Thursday, Sep. 14, PDT. Those of you who received this circular
are encouraged to share this information with your colleagues
and bring in remarks on their behalf, also.

BCD is available at
BCD change history is available at
BDS-related RDR materials are compiled and posted at


- Nobu Toge (KEK, Accelerator Lab)
  email: toge@xxxxxxxxxxxx
  voice: +81-29-864-5224
  fax:   +81-29-864-3182
--- Begin Message ---
 Dear Nobu and Colleagues in CCB, 

We are submitting a change request which 
is described in the attached file "CCR_muon_walls.doc". 

The supporting files are linked from "CCR_muon_walls.doc"
and are placed here

 Best regards, 
  BDS Area leaders
  Deepa Angal-Kalinin, Andrei Seryi, Hitoshi Yamamoto

Attachment: CCR_muon_walls.doc
Description: CCR_muon_walls.doc

--- End Message ---