Change unit for pixel size to microns

tomoscan/esrf/hdf5scan.py

@@ -480,9 +480,9 @@ class HDF5TomoScan(TomoScanBase):
         """read x and y pixel values"""
         with h5py.File(self.master_file, 'r') as h5_file:
             x_pixel_dataset = h5_file[self._entry][self._X_PIXEL_SIZE_PATH]
-            _x_pixel_size = self._get_value(x_pixel_dataset, default_unit='mm')
+            _x_pixel_size = self._get_value(x_pixel_dataset, default_unit='micrometer')
             y_pixel_dataset = h5_file[self._entry][self._Y_PIXEL_SIZE_PATH]
-            _y_pixel_size = self._get_value(y_pixel_dataset, default_unit='mm')
+            _y_pixel_size = self._get_value(y_pixel_dataset, default_unit='micrometer')
         return _x_pixel_size, _y_pixel_size
 
     def _get_dim1_dim2(self):