I measured the force between magnets on MN and cans of PDs in more wider range (see attachment).

We considered to use the other best position for coil-magnet actuator to keep the distance between magnet and PD larger.
However, even if we use the other best position, the force is roughly 5 times smaller but still remains.
So, we need to consider another option.

One possible solution is to separate actuator coils and photosensors (PSs).
Since the cryopayload have many dummy coil bobins to keep their symmetry, it is not so difficult to separate coils and PSs.
Another solusion is to redesign the coil bobins but it will take long time.
So, Ithink it is not suitable for current tough schedule.