Responsible: Koller

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RID 231

Doc. Title
Band 6 Cartridge Design Report Originator: Hans Rudolf Date: 2007-08-31

Description:
7.1.4 OMT (page 27): The OMT is overmoded with E11/H11 modes propagating from 225

GHz onwards.
Suggested Solution:
A possible solution would be to reduce the rectangular WG size to a=0.75 mm.

The E11/H11 modes would start propagating only from 283 GHz onwards.

Unfortunately it brings the (wanted) H10 mode close to cut off at 200 GHz.

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RID 1715

Doc. Title
Band 6 Cartridge Safety Document Originator: Jody Boylard Date: 2007-09-07

Description:
This document addresses the identified safety hazards, but lacks attention to the use of

hazardous substances such as lead solder? The identification of the Teflon rings and the

products of decomposition are worthy of note as indicated in the document.



There is no statement of conformity required since the Cartridge is not operating on a

stand-alone basis. It will be installed into another system. But, a statement of incorporation

is required. This is a requirement of …

[AD 05] ALMA Safety Risk Analysis Procedures ALMA-10.08.00.00-004-A-GEN



Please identify which regulatory safety source documents were used.
Suggested Solution:
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Printed 2007-09-18 16:52:53 Page 6 of 8
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