Re: [GURPS Spaceships] TL9 SM+15 Space Habitat
 

Perhaps a magsail would be the best protection against charged particles.

Re: [GURPS Spaceships] TL9 SM+15 Space Habitat
 

It would need to be quite an extreme magsail. I have a magloop simulator I wrote, for simulating the deflection of protons by a magnetic field. For a configuration of two concentric magloops, one with a radius of 110 meters and one with a radius of 90 meters, each carrying 5E7 amperes, the loops will protect a habitat (or anything else) between them at 100 meters from their common center from protons of up to 1 GeV, but offers only partial protection against 10 GeV protons. This will protect against most solar storms, and give some but not complete protection against cosmic rays. With that separation and current, the loops will experience an attractive force of 25,000 tons per meter.

I make this program freely available on my website
http://panoptesv.com/Magtracer/magtracer.f
http://panoptesv.com/Magtracer/grater.f
http://panoptesv.com/Magtracer/rand.f
http://panoptesv.com/Magtracer/rungakutta.f
You will need to know FORTRAN to get much use out of it, and will need a FORTRAN 77 compiler (you can get one for free if you install cygwin on a windows machine, and I think linux automatically comes with a fortran compiler). It numerically integrates the trajectories of protons traveling in the magnetic fields of current loops. In its present configuration, it looks at the time inverse of the radiation protection problem - it starts the protons at the location of the habitat, and sees if they can escape to far away. If all protons are trapped, then there is no trajectory from far away which will allow the protons to reach the habitat. For those of you with programming experience, or who are willing to learn, you can use this to try to find effective magnetic radiation shields. Maybe YOU can figure out how to make it work more effectively!

Luke

EDIT: Make that an attractive force of 2,500 tons per meter, I forgot a factor of g=9.8 m/s^2. The attractive force goes as the product of the currents in the wire, so if both loops keep the same current the force is proportional to the square of the current. Reducing the current by a factor of 10 will give you a force of 25 tons per meter, which may be tolerable with sufficient support structures. This current will provide limited protection against 1 GeV protons and nearly complete protection against 100 MeV protons. This will provide considerable help but not complete protection against solar storms, but will let a lot of cosmic rays through.

Re: [GURPS Spaceships] TL9 SM+15 Space Habitat
 

It is a leisure space station, where the 37500 inhabitants have 100% spare time (well, at least 98% spare time), and some of them will want to join the 24'000 mile high club (and in zero g), and they'll all be rich and healthy (and if not young then rejuvenated to the full extent of what TL9 medical science can do) ,so why not provide rooms made for the purpose, with systems to clean away all the mess? Much better than that they sneak off and try to do it in the Control Room (the only other zero-g facility).

That said, I'd guess that anywhere from 1/3 to 1/10 of the zero-g habitat module is devoted to shag cabins, depending on the culture and expectations of the designers, with most of those being small (actually cabin-sized). The rest is zero-g diving pools, ball game arenas, and so forth. And as someone pointed out, I probably should have gone with Habitat instead of Open space. That way, I'd get lots of tech crew, and the cost would feel more correct.

Re: [GURPS Spaceships] TL9 SM+15 Space Habitat
 

It was designed for and built by sex addicts!

:D LOL

Other comment --
 

700 cops for 37500 is rather high.

In America, usually there's one cop on duty per 1100 folks.

That would be some 37 cops; x5 for shifts, holidays, sick days, vacations, etc. you're looking at about 185 police officers plus admin personnel.

If you need security guards ("prepare to repel boarders!") that changes things but that's a different category (armed forces v. police.)

The hospital bed count is a bit high too -- 1200 = roughly one bed per 30 people. I think a normal figure is about 1/5 to 1/10 this. In an epidemic the sick will probably stay in residences with visits by medical personnel.

Of course, given the sexual mania indicated by the focus on . . . playpens, you might need the extra cops and doctors to deal with the fallout.

Re: Other comment --
 

Probably some of the facilities are too heavily staffed. On the other hand, it'a a luxury habitat, and the habitants expect top-notch service and serious security.

One could also suggest that most of the hospital beds are used for elective procedures, rather than to treat diseases and injuries.

Re: [GURPS Spaceships] TL9 SM+15 Space Habitat
 

Good argument...

...but: It makes the high number of security personell look even worse. If your people are basically either employees or VIP#s, your need for normal police goes down quite a lot ;)

Re: [GURPS Spaceships] TL9 SM+15 Space Habitat
 

Think of them as permanent hotel guests. Very wealthy, very permanent hotel guests.

Re: [GURPS Spaceships] TL9 SM+15 Space Habitat
 

It could be used to attract tourists. It might be used by more visitors then residents.

Re: [GURPS Spaceships] TL9 SM+15 Space Habitat
 

Just a quick note on the Control Room thrusters - you could also move the habitat (for whatever reason) by tethering it to its complement of craft and having them pull it where it needs to go. Assuming each craft is capable of 1G acceleration, this would give the station a 1/31 G acceleration - rather slow, but probably enough that course changes could be done much less in advance than would otherwise be necessary.

I really like this habitat concept, although I admit I found the mention of "shag shacks" surprising (not surprising they would be there, but surprising the designers would make the habitat with them in mind). You might want to take a closer look at your armoring method, as others have indicated a susceptibility to charged particles. You might want to consider sacrificing some of the factory space to coat the habitat in a layer of ice, in addition to the steel for protecting against meteorite fragments. I'm not sure exactly how much ice you would need - any takers?