This is version 12.
It is not the current version, and thus it cannot be edited.
[Back to current version]
[Restore this version]
The superconducting magnet MA15 was acquired in 2004. It was paid
partly by
14.9 Tesla is the maximum field achievable with nowadays technology
for a split pair coil (which is needed for wide angle access). This
limit could in principle be increased to 17.5 by means of a dysprosium
insert for small samples. This option is not (yet) available at SINQ.
A rotatable sample stick has been made at PSI using a similar design at the
ILL. This allows to leave the magnet in a fixed omega position and to
turn the sample orientation within the magnet.
At present, MA15 can only be used on RITA2. However, some
Restrictions have to be obeyed.
Specifications
Cooldown Procedure?
Pending Issues
- The automatic needle valve control does not work properly. It seems that this
is a mechanical problem. The magnet was sent back to
Oxford Instruments and should be back in the beginning of May 2005.
- The rotatable sample stick has a relatively bad thermal contact. Therefore the
minimal sample temperature is increased. It is not sure if putting more
exchange gas can elimate this problem.
- In order to be used possibly on other instruments, the instruments have to be
checked for magnetic materials around the sample table. After some force
tests, and after eventual modifications of the instrument, the conditions
for a safe operations have to be defined. The next candidate for these
tests is TASP.
Attachments:
ma15c.jpg
ma15b.jpg
ma15d.jpg
ma15a.jpg
This particular version was published on 16-Mar-2005 10:08:49 UTC by MarkusZolliker.
|