Fairly good points. And I guess you would actually need twice the amount of energy for station keeping, unless you were to use an unstable orbit on-purpose, and

Fairly good points. And I guess you would actually need twice the amount of energy for station keeping, unless you were to use an unstable orbit on-purpose, and use the gravity as an assist for accelerating particles, now that I think of it. Well, in any case, so much for the circumsolar collider described in the Three Body trilogy. I guess it might still be doable/useful with some hypothetical future technology, though.