The Born ion electrostatic potential should vary inversely with
the radius of the ion: http://www.poissonboltzmann.org/apbs/examples/solvation-energies/solvation-energies-born-ion
The atompot function calculates the electrostatic potential from
a particular calculation at the atom locations of the molecule.
Chief Scientist for Signature Science
Pacific Northwest National Laboratory
From: Vladimir Lankevich
Sent: Thursday, July 22, 2010 1:05 PM
Subject: [Apbs-users] how does electrostatic potential inside an atom
I have a question about pot and atompot functions of APBS. I need to know
potential inside the atom and in its proximity, and at first I was just playing
with Born atom to understand how everything works. I noticed that the potential
inside the atom changes if I change the radius of this atom. Can you please
explain why does this happen? How does APBS calculates the potential inside the
atom? How does the atompot function calculates its output? I apologize if those
are naive questions, but I could not find an answer in other places. Thank you.