Without testing it myself, try:
import arcpy
from arcpy import env
from arcpy.sa import *
arcpy.CheckOutExtension("Spatial")
env.workspace =
srcFC =
cellSize =
power =
searchRadius =
tbl= arcpy.ListFields(srcFC, 'r*')
for zField in tbl:
print 'Processing: ' + zField
outIDW = Idw(srcFC, zField, cellSize, power, searchRadius)
outIDW.save(env.workspace + '\\' + zField + '_IDW')
del srcFC, cellSize, power, searchRadius, tbl, zField
You will need to set your input workspace, source featureclass, cellsize, power, radius.You will need to have a look at the 10.2 Help reference to IDW, so you can identify which Radius method you wish to utilise.What I have given here is a basis for development, which needs to be polished and finished to run for your application.If it doesn't run in IDLE, run from within Python GUI in ArcGIS or ArcCatalog.Regards,Craig