Fusion Message Board

In this space, visitors are invited to post any comments, questions, or skeptical observations about Philo T. Farnsworth's contributions to the field of Nuclear Fusion research.

Subject: Re:(large vacuum chamber) The Kit
Date: May 09, 1:00 pm
Poster: Ben Franchuk

On May 09, 1:00 pm, Ben Franchuk wrote:

>AS big as you want, if you aren't constrained by cost. Mostly it's a matter of pumping speed, interestingly, it gets easier as it gets bigger (because outgassing from the walls is the largest source of gas (once you've found all the leaks (heh, heh,heh)).....

I tend to save my money for luxury items
like food.

>As a point of reference, the big chamber at JPL is about 30 feet in diameter and 60 feet long and pumps down to 1E-7 in about an hour... and costs about $20-50K/hr to operate, as I recall (although that may include LN2 costs, and operators for a normal Thermal Vac test). A set of truly enormous diff pumps does the job.

Do you have the "home kit version?
On another message board they were discusing
exporing mars. I was wondering if a large chamber
to simulate the mars envorment 5 mbar CO2
and -100C would not be a unresonable goal
for a group of people.