Pull request review fixes 0.23

[shimwell]

Proposed changes

Implemented a few more suggestions from the pullrequest.com review
#639

We are down to just 40 remaining suggestions 🎉

Types of changes

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Code refactoring
• Documentation Update (if none of the other choices apply)
• New tests

Checklist

• Pep8 applied
• Unit tests pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)

[codecov]

Codecov Report

Merging #724 (b38d69b) into develop (c59f9ad) will decrease coverage by 0.00%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           develop     #724      +/-   ##
===========================================
- Coverage    96.33%   96.33%   -0.01%     
===========================================
  Files           69       69              
  Lines         4453     4452       -1     
===========================================
- Hits          4290     4289       -1     
  Misses         163      163              

Impacted Files	Coverage Δ
paramak/neutronics_utils.py	92.85% <ø> (-0.06%)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update c59f9ad...b38d69b. Read the comment docs.