Is it possible to add "average" to the MPB fit types? Thanks!
Yes, sorta.
You can acquire the data as multi-point background (MPB), but then choose one of the off-peak models as shown here:
When you do that the data will still be acquired as an MPB element, but it will apply the selected off-peak model (e.g., linear, average, etc.) to the MPB intensities:
Last (Current) On and Off Peak Count Times:
ELEM: si ka fe ka
BGD: MULT MULT
BGDS: MULT AVG
SPEC: 1 2
CRYST: PET LIFH
ORDER: 1 1
ONTIM: 10.00 10.00
HITIM: 5.00 5.00
LOTIM: 5.00 5.00
HIMULT 10.00 10.00
LOMULT 10.00 10.00
In all cases where an off-peak model is applied to MPB intensities, PFE will combine the high side MPB intensities into a single high off-peak value and combine the low side MPB intensities into a single low off-peak value, and then apply the selected off-peak model to those combined values.
Pretty cool...