Re: [ATM] How would you mount a secondary in a LHN?

[Mark Holm <mdholm@telerama.com>]

Christopher Dalla Piazza wrote:

> What would you do?

I haven't ever done this, so my advice may not carry huge weight, but
I'll make a suggestion anyhow.

The main reason for a stalk mounting is to avoid spider diffraction.
Over the last decade, atm's have demonstrated that a wire spider can
greatly reduce the magnitude of spider diffraction.  This approach
avoids the hazardous process of boring holes in the correctors and the
structural difficulties of: 1. using the corrector as a structural
element in bending;  2. creating a structurally stiff and well aligned
secondary mounting without stressing the corrector.

-- 
Mark Holm
mdholm@telerama.com

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