Use new dim arg of scipp.bin

Author: SimonHeybrock

src/ess/reflectometry/corrections.py

@@ -57,7 +57,7 @@ def compute_reference_intensity(
         with the experiment parameters (such as sample rotation).
         Therefore it can be used to normalize sample measurements.
     """
-    b = da.bins.concat(set(da.dims) - set(da.coords["z_index"].dims)).bin(wavelength=wb)
+    b = da.bin(wavelength=wb, dim=set(da.dims) - set(da.coords["z_index"].dims))
     h = b.hist()
     h.masks["too_few_events"] = h.data < sc.scalar(1, unit="counts")
     # Add a Q coordinate to each bin, the Q is not completely unique in every bin,

src/ess/reflectometry/normalize.py

@@ -43,8 +43,7 @@ def normalization_factor(
 
     """
     sample_q = (
-        da.bins.concat(set(da.dims) - set(da.coords["z_index"].dims))
-        .bin(wavelength=wbins)
+        da.bin(wavelength=wbins, dim=set(da.dims) - set(da.coords["z_index"].dims))
         .bins.coords["Q"]
         .bins.mean()
     )
@@ -112,7 +111,7 @@ def reflectivity_over_q(
         Reflectivity as a function of Q
     """
     return NormalizedIofQ(
-        da.bins.concat().bin(Q=qbins) / sc.values(n.flatten(to="Q").hist(Q=qbins))
+        da.bin(Q=qbins, dim=da.dims) / sc.values(n.hist(Q=qbins, dim=n.dims))
     )