Update changelog; tweak doc build

Author: Paul Kienzle

ChangeLog.rst

@@ -23,6 +23,14 @@ Known issues
 Change history
 ==============
 
+2024-12-17 R2.0.2
+-----------------
+
+Modified:
+
+* Revert bound coherent scattering length updates for C-12, O-16, Sn-119,
+  Pb-207 from R2.0.0 and instead update nat-C, nat-O, nat-Sn, and nat-Pb.
+
 2024-12-06 R2.0.1
 -----------------
 
@@ -45,12 +53,15 @@ Modified:
 * Update physical constants to CODATA 2022. Values have changed by as much
   as 1e-7 (relative) in Avogadro number, Planck constant, J/eV, electron radius,
   electron mass, neutron mass and atomic mass constant.
-* Updated bound coherent scattering length for H-1, H-2, He-4, C-12,
-  O-16, O-17, O-18, Sn-119, Sm-154, Eu-153, Ir-191, Ir-193, Pb-207, Bi-209
+* Updated bound coherent scattering length for H-1, H-2, He-4, C-12†,
+  O-16†, O-17, O-18, Sn-119†, Sm-154, Eu-153, Ir-191, Ir-193, Pb-207†, Bi-209
 * Neutron b_c changed for Zn-70 from 6.9 to 6.0 (fixes a typo in the table)
 * Updated total cross section for He, Kr, Xe
 * Use log-log interpolation for X-ray f''
 
+† Some scattering length updates were reverted in R2.0.2. They should have
+been updates to the element in natural abundance rather than the isotope.
+
 Breaking changes:
 
 * Remove Z=0 (bare neutron) from the PeriodicTable iterator.

periodictable/nsf.py

@@ -123,8 +123,7 @@
     Kr total 7.68(13) => 7.685(26) [5]
     Xe total --- => 4.344(17) [5]
 
-    [1] Snow (2020) 10.1103/PhysRevD.101.062004
-        (using average of gravity reflectometer and interferometer measurements)
+    [1] Snow (2020) 10.1103/PhysRevD.101.062004 [average of values in Table 1]
     [2] Fischer (2012) 10.1088/0953-8984/24/50/505105
     [3] Haun (2020) 10.1103/PhysRevLett.124.012501
     [4] Kohlmann (2016) 10.1515/zkri-2016-1984