NASA Studying Energy Shields for Spacecraft

Shafe writes "SPACE.COM posted an article concerning enhanced shielding technologies research for futuristic spacecraft en route to Mars. One particularly interesting goal is essentially an energy shield known as a 'multipole electrostatic shield' that would deflect both radiation and micro-meteoroids. We're one step closer to Star Trek: shields up!"

Comments

Re:article short on details about construction/ene

[Lady Jazzica]

I found the abstract for the paper presented by Metzger, Youngquist and Lane here.

There's no metal spheres involved, just some sort of electrostatic field:

"We have recently observed, however, that the physics and the shielding problem possess certain asymmetries which may be exploited in order to obtain the intended shells of isotropic protection without deploying radially-symmetric charge around the spacecraft. The basic concept is to leverage a multipole expansion of the fields, assigning a different function to different terms in the expansion. As shown in Fig. 1, a positively-repulsive quadrupole term may protect the region closest to the spacecraft from high-energy protons and HZE particles, whereas a weaker but slowly decaying monopole field may deflect thermal electrons away from the larger region of space. The result is that the significant fluxes of both negative and positive particles may be deflected away from the spacecraft using the same electrostatic field. This has the potential to create isotropic protection with a significant reduction in spacecraft mass."