Steve Jackson Games - Site Navigation
Home General Info Follow Us Search Illuminator Store Forums What's New Other Games Ogre GURPS Munchkin Our Games: Home

Go Back   Steve Jackson Games Forums > Roleplaying > GURPS

Reply
 
Thread Tools Display Modes
Old 12-19-2020, 08:25 AM   #41
Fred Brackin
 
Join Date: Aug 2007
Default Re: [Vehicles] How big should a self-destruct be?

Quote:
Originally Posted by DataPacRat View Post
After eyeballing some more charts, I finally got an estimate that about 15 metres of air absorbs half of the X-rays of this wavelength.
I wrestled with this once with antimatter and gamma rays. As a gameable simplification you can probably jsut compress these distance numbers based on material density.

So 15 meters of air turns into 15mm of water and that compresses into 1.5mm of lead. Perhaps even half that of uranium, tungsten or some platinum group metal if you want something that may not have heavy metal toxicity. Though breathing fine particles of tungsten has been suggested to e not much better than breathing fine particles of uranium.

It is my expectation that this heavy metal jacketing is what would be done and I think you would then have a fairly conventional plasma explosion.
__________________
Fred Brackin
Fred Brackin is online now   Reply With Quote
Old 12-19-2020, 04:02 PM   #42
DataPacRat
 
DataPacRat's Avatar
 
Join Date: Nov 2004
Location: Niagara, Canada
Default Re: [Vehicles] How big should a self-destruct be?

Quote:
Originally Posted by Fred Brackin View Post
I wrestled with this once with antimatter and gamma rays. As a gameable simplification you can probably jsut compress these distance numbers based on material density.

So 15 meters of air turns into 15mm of water and that compresses into 1.5mm of lead. Perhaps even half that of uranium, tungsten or some platinum group metal if you want something that may not have heavy metal toxicity. Though breathing fine particles of tungsten has been suggested to e not much better than breathing fine particles of uranium.

It is my expectation that this heavy metal jacketing is what would be done and I think you would then have a fairly conventional plasma explosion.
So, 4.5mm of lead would attenuate the rads as much as 45 metres of air - enough to bring the levels down below 100 rads, even immediately next to the explosion. Handy trick to have available...

... Of course, if all it takes to turn a rad-safed isomer explosive back into a radioactive death-field is to peel off the outer coating, then it would still seem to be in the LC 0 to 1 range. :)


And as a side-note, having a type of particularly-energy-dense battery that's LC1 (or less) (and could potentially be disassembled to sterilize everything in a couple dozen metres) is one of those weird details that makes worldbuilding so fun. :)
__________________
Thank you for your time,
--
DataPacRat
"Then again, maybe I'm wrong."
DataPacRat is offline   Reply With Quote
Reply

Tags
3rd edition, antimatter, self destruct, vehicles

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Fnords are Off
[IMG] code is Off
HTML code is Off

Forum Jump


All times are GMT -6. The time now is 01:24 PM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2024, vBulletin Solutions, Inc.