Further to Lachlan's e-mail we once had a near disater when a student
managed to get a stirrer bar flea stuck up inside the bore of our Gemini
200 magnet. I will not recount the perverted logic he used as an
explanation of how he got it there!!!!!
We were worried that we might have needed to de-energise the magnet to
remove it but managed to get it out when the glass blower made a glass cup
on the end of a glass rod and we were able to scoop it out. Whilst this
is possible, as we have shown, with a 200 it could conceivably be more
difficult with much higher fields both because of field strength and
because of the length of the rod need for the scoop.
Frank Riddell
Frank Riddell, School of Chemistry, University of St Andrews,
St Andrews, Fife, KY16 9ST, Scotland, UK.
Tel: + 44 (0) 1334 - 463815 Fax: + 44 (0) 1334 - 463808
E-mail: fgr@st-andrews.ac.uk
Research group page:
WWW: http://www.st-and.ac.uk/~www_sc/personal/fgr
Personal Photos page:
WWW: http://www.st-and.ac.uk/~www_sc/personal/fgr/Photos/