Neutron Scattering XOP
This external operation (XOP) adds a set of functions to Igor Pro that are useful for neutron scattering users, especially when dealing with polarised beams. This XOP provides 46 functions related with:
- Reciprocal lattice calculations,
- Count rates calculations,
- Peak centering calculations,
- Flipping ratios and asymmetries calculations,
- 3He spin filter calculations.
This plug-in is free and may be improved on request. For using it, download the disk image file containing the XOP and the Help files. Then, put both in the Igor Extensions folder and relaunch Igor.
Adds temperature parameter to the spin filter routines, 64-bit version for Igor Pro 8.04, Help file updated.
"He3Efficiency2" and "He3Efficiency2SDev" functions added for calculating the neutron polarisation from two monitors mounted before and after the spin filter cell.
Version 1.22 - Auhust 2021
Adds temperature parameter to the 3He spin filter functions.
Version 1.20 - Auhust 2008
Adds "He3Efficiency2" and "He3Efficiency2SDev" functions.
Version 1.16 - June 2008
Version 1.13 - May 2002
Asymmetry and 3He spin filter functions added for calculating the spin filter efficiency, transmission and the 3He polarisation from asymmetry measurements.
Version 1.04 - March 2002
Sin(Theta)/Lambda functions added for calculating the reciprocal space distances
Version 1.00 - November 2000
First Release - includes count rate, flipping ratio, optimum counting times and peak centering calculations