Tim, don't have one myself, but have seen a moded assembly on a Bruker machine where a N2 bleed was used in the replacement mirror. It seemed to be successful (in that the replacement mirror was outlasting the first). I believe Bruker did the mod but it may has been local. Ask Bruker.
Tony Raftery ---- Original message ---- >Date: Tue, 30 Oct 2007 17:08:35 +0000 >From: "Tim Hyde" <[EMAIL PROTECTED]> >Subject: Bruker Gobel Mirrors >To: <rietveld_l@ill.fr> > >Dear all, > >We have had some problems with our Ni/C 60mm length Gobel (Goebel) >mirrors. >I believe "2nd Generation" purchased 2003. > >We now realise that over a period of time deposits have built up in the >mirror giving up to 60% reduction in intensity and additional low >intensity "peaks". > >I was wondering if this is an issue known to the community. Bruker can >refurbish our original mirrors. Anyone have knowledge of how efficient >this process is? > >If you have had similar problems and have fixed them please get in >touch. > >Regards > >Tim Hyde > >Dr Tim Hyde >Principal Scientist >Johnson Matthey Technology Centre >Blounts Court >Sonning Common >Reading RG4 9NH > >Tel: +44 (0) 118 924 2152 >Fax: +44 (0) 118 924 2254 >email [EMAIL PROTECTED] > > >If the reader of this email is not the intended recipient(s), please be >advised that any dissemination, distribution or copying of this information is >strictly prohibited. Johnson Matthey PLC has its main place of business at >40-42 Hatton Garden, London (020 7269 8400). > >Johnson Matthey Public Limited Company >Registered Office: 40-42 Hatton Garden, London EC1N 8EE >Registered in England No 33774 > >Whilst Johnson Matthey aims to keep its network free from viruses you should >note that we are unable to scan certain emails, particularly if any part is >encrypted or password-protected, and accordingly you are strongly advised to >check this email and any attachments for viruses. The company shall NOT ACCEPT >any liability with regard to computer viruses transferred by way of email. > >Please note that your communication may be monitored in accordance with >Johnson Matthey internal policy documentation.
