Slit absorption fails when there is a detector over one of the slits.

Slit absorption is currently incompatible with detectors on barriers south of the midline.

Detector norm seems off.  If I make detector very large so that it covers the entire box, it only registers 80-95%, rather than 100% as I would expect since the entire particle is inside it.

In high intensity, if you put a detector over one of the slits, you get massive reflection.  Suppress this if the slits are absorbing.

Bug: If I check and uncheck “slit absorption” with no slits and no barriers, it creates little glitches in the beam.  The “slit absorption” checkbox should have no effect if there are no slits or barriers.

When I move the vertical position of the slits, the response is very jerky and discontinuous.  Can this be any smoother?

Add inverse slits feature.
	>>Do you want 3 detectors for this?  Wouldn't this be better simulated by the user just adding her own barriers?  Can you help motivate this feature for me?

The controls should look more fun.  (The controls on Ron’s new Photoelectric simulation might be a good model.)

Allow user to move slit barrier up and down by clicking on it and dragging. (low priority).

Bug: application crashes when changing resolution.

Move barriers and detectors to advanced section.
	>>What is the advanced section?  Do you mean an expanding "Advanced>>" button in the control panel?  Is this really necessary here?

There’s lots of white space, then lots of controls crammed together.  Organization of controls needs to be more efficient.

Gun is covered up by controls in mandel panel.

>>Set masses appropriately for electrons, neutrons, and He atoms.
		electron mass = 9.11 × 10-31 kilograms ::1.0
		neutron mass: 1.67 × 10?27 kg ::1833.15
		helium mass: 6.70 x10-27 kg    ::7354.55
	I've set the masses to be 
		electron: 0.2
		helium: 2.25
		neutron 2.0, these values don't fit together nicely on a linear scale.