Loq software
17 Oct 2008



Software for use on Loq data




Windows Programs (use encouraged - available for download)

** Please note: Whilst 32-bit versions of Mantid remain capable of reducing LOQ data, the Mantid Development Team have signaled their intention to stop supporting 32-bit versions because they are now too limiting for the needs of many instruments. You are therefore recommended to use 64-bit versions of Mantid where your computing infrastructure permits. This message was posted on 13 June 2014. **

* Please note: this version of Fish does not support the more advanced numerical integration schemes needed by some complex models, for example, those fitting oriented rods. These models are currently only available in the full VMS version of Fish or the non-GUI Windows port of that program (available here). Contact Richard Heenan for further advice regarding these versions of Fish. Support for Fish will effectively cease after January 2016.

VMS Programs (phased out - not available for download)

** Please note: The LOQ VMS system was retired on 31 December 2014. Whilst User accounts were archived for posterity, there will be a gradually declining number of VMS machines in coming years to which they can be reinstated. If you have an ISIS VMS account (mostly only long-established Users), and have data/programs in that account that you continue to want access to, you are strongly advised to download them at the earliest opportunity. The ISIS Computing Group will be pleased to assist you with this. This message was posted on 13 June 2014. **

  • Colette (primary data reduction & display)
  • Sandra (data fitting)

Data Formats

Two 1D (eg, for 'intensity' vs Q) ASCII (text-based) data formats are in use on LOQ. However, use of the earlier 'LOQ' or 'FISH' or 'RKH' format is now deprecated in favour of an internationally agreed standard called SASXML or 'CanSAS-1D'. A 2D data format (eg, for 'intensity' vs Qx & Qy) based on the NeXus format, called NXcanSAS, is in preparation.

To use SASXML effectively you will also need to download an XML stylesheet appropriate to the version of SASXML you are using (click on a link below, then right-click on the file and 'Save as...'):

The benefits of SASXML are that it carries much more metadata about the content of the data file (useful when working with old data or when archiving data) and that it can be read automatically by XML-compliant software written by third-parties (this includes Microsoft). In addition, if you use Mantid to reduce your data and write it out as SASXML, any sample and/or can transmission data will be automatically included in the same data file.