I'm guessing there would be multiple shields in a configuration to funnel any radiation away from the crew sections. But I still think you would need to harden the ship with some material like water to impede the fastest particles or something even more dense.

The nice thing about magnetic fields is that all charged particles are deflected: the positive ones bend one way, and the negative ones bend the other.

In a lot of situations, the particles will actually spin along helical paths whose net motion is along the magnetic field lines. In the case of Earth, that means that the charged particles eventually make their way to one or the other pole... and as the field lines descend into the atmosphere, those particles create auroras. Neat stuff!

That's why the comment you've replied to says "particles with the right direction", not "particles with the right charge".

Well the planet Earth has a nice shield with exactly this issue. Particles are channeled to the north and south poles, where they hit the atmosphere and generate the colourful aurora in the sky :)

So perhaps there's going to be a cool spaceship with it's own aurora?! Or you could try and channel the particles into a collecting device, bombard them into a fluid, trigger muon generation and try to catalyse a fusion reaction. Probably wouldn't break even but it'd be fun to try.

Though on Earth it's our atmosphere that stops the high energy particles.