Author Topic: Radiation  (Read 630741 times)

Offline timfinch

  • Jupiter
  • ***
  • Posts: 865
  • BANNED
Re: Radiation
« Reply #2955 on: April 26, 2018, 01:11:15 AM »
Then you should know what the primary and secondary shields consisted of and should know the diesel tanks were in the ballast tanks.  i can forgive you confusing a fuel oil tank for the diesel tank because as a nuke machinist mate you probably didn't spend a lot of time replacing tank sensors and working on the diesel generator as I did and you probably didn't spend half as much time at sea as I did.  No harm, no foul.

Offline Northern Lurker

  • Earth
  • ***
  • Posts: 109
Re: Radiation
« Reply #2956 on: April 26, 2018, 01:21:41 AM »
It is located between forward crew compartment and reactor compartment because there it acts as an additional radiation shield. I was wondering how Tim, as a nuclear submariner, can reconcile that in submarine structural elements can shield from radiation but on Apollo not. Or maybe he wasn't a real submariner. Apparently, per Cosmoquest, he wasn't.

Lurky

You could not have been a Nuke or even a well trained submariner. If you had been then you would know the diesel tanks were in the ballast tanks and as such would not act as shielding to the the living spaces.  You would know that primary shielding was provided by polyethylene, lead, steel and water tanks used in the operation of the reactor.  You would know that the diesel tanks are placed in the ballast tanks to minimize the impact on trim.  Diesel is replaced by seatwater as it is consumed thereby negating a change in trim.  You embarrass all submarine sailors with this lack of institutional knowledge.

As Ranb earlier mentioned, you explained diesel tanks of a diesel electric sub. We were talking about nuclear powered submarines, where diesel tanks are between forward crew compartment and reactor compartment. Care to reconcile why US Navy uses structure and equipment as part of radiation shielding but you claim it's impossible and unusable on Apollo.


6.  How does the integral flux for electrons > 1 MeV change with energy?
The integral flux decreases as energy increases.

Do you realize what that means to shielding requirements?

Lurky

Offline Jason Thompson

  • Uranus
  • ****
  • Posts: 1601
Re: Radiation
« Reply #2957 on: April 26, 2018, 01:53:55 AM »
The geomagnetic equator is 11.5 degrees above the geographical equator.  This results in a lunar plane of roughly 29 degrees to the equator being 17.5 degrees above the geomagnetic equator.

As we have tried to explain, the geomagnetic equator is inclined to, not above, the geographic equator. Since the north magnetic pole is actually inclined towards the launch site (seriously, look it up), over the continental US the geomagnetic equator is actually 11.5 degrees below the geographic equator. That has the effect of making the inclination of the Apollo orbit to the VAB closer to 40 degrees.

Quote
Rockets do not steer with the main engine, they steer with thrusters and unless they did then they would remain on identical orbital planes.

Wrong. If the main rocket engine is not aligned with the orbital plane then of course a plane change can (and inevitably will) occur. That's physics. If a spacecraft in an equatorial orbit with an inclination of 0 degrees happened to have its main engine pointed at 90 degrees to the plane of the orbit, what do you think will happen when it fires that engine?
"There's this idea that everyone's opinion is equally valid. My arse! Bloke who was a professor of dentistry for forty years does NOT have a debate with some eejit who removes his teeth with string and a door!"  - Dara O'Briain

Offline molesworth

  • Mars
  • ***
  • Posts: 349
  • the curse of st custards
Re: Radiation
« Reply #2958 on: April 26, 2018, 02:27:17 AM »
Rockets do not steer with the main engine, they steer with thrusters and unless they did then they would remain on identical orbital planes.
You've been watching too much (bad) science fiction I think  :D

As I said over at CQ, a few hours experimenting with Kerbal Space Program would give you a much better understanding of how spacecraft actually operate, and the effects of, for example, firing the main engine when the vehicle is oriented at an angle from its velocity vector.
Days spent at sea are not deducted from one's allotted span - Phoenician proverb

Offline gillianren

  • Uranus
  • ****
  • Posts: 2211
    • My Letterboxd journal
Re: Radiation
« Reply #2959 on: April 26, 2018, 03:08:27 AM »
Please stop using glow.  It makes your posts harder to read, and you need all the help you can get.
"This sounds like a job for Bipolar Bear . . . but I just can't seem to get out of bed!"

"Conspiracy theories are an irresistible labour-saving device in the face of complexity."  --Henry Louis Gates

Offline Abaddon

  • Saturn
  • ****
  • Posts: 1132
Re: Radiation
« Reply #2960 on: April 26, 2018, 04:37:15 AM »
Please stop using glow.  It makes your posts harder to read, and you need all the help you can get.
It is a common CT tactic to use unconventional formatting. For reasons unexplained, they think it somehow adds weight to their claims. One need only visit timecube to see such in action.

Offline Abaddon

  • Saturn
  • ****
  • Posts: 1132
Re: Radiation
« Reply #2961 on: April 26, 2018, 04:40:12 AM »
Rockets do not steer with the main engine, they steer with thrusters and unless they did then they would remain on identical orbital planes.
So much wrong. You likely believe that the pointy end always points in the direction of travel (snigger).

Offline Bryanpoprobson

  • Jupiter
  • ***
  • Posts: 823
  • Another Clown
Re: Radiation
« Reply #2962 on: April 26, 2018, 07:26:22 AM »
Rockets do not steer with the main engine, they steer with thrusters and unless they did then they would remain on identical orbital planes.
So much wrong. You likely believe that the pointy end always points in the direction of travel (snigger).

It actually shows a complete lack of understanding of orbital mechanics, no wonder he had a problem with a 3D rendering of the path taken by Apollo.
"Wise men speak because they have something to say!" "Fools speak, because they have to say something!" (Plato)

Offline bknight

  • Neptune
  • ****
  • Posts: 3107
Re: Radiation
« Reply #2963 on: April 26, 2018, 07:27:48 AM »
Please stop using glow.  It makes your posts harder to read, and you need all the help you can get.
It is a common CT tactic to use unconventional formatting. For reasons unexplained, they think it somehow adds weight to their claims. One need only visit timecube to see such in action.

He did this on CQ also?  I must be going blind as I didn't recognize it.
Truth needs no defense.  Nobody can take those footsteps I made on the surface of the moon away from me.
Eugene Cernan

Offline Ranb

  • Mars
  • ***
  • Posts: 266
Re: Radiation
« Reply #2964 on: April 26, 2018, 09:08:44 AM »
Then you should know what the primary and secondary shields consisted of and should know the diesel tanks were in the ballast tanks.
The NFO tank is not a ballast tank even if its condition affects trim.  While a ballast tank can be emptied at sea with the reactor critical as part of standard ship's operation, the NFO tank is never allowed to be anything but full while the reactor is critical.  All nukes know this with the possible exception of yourself.

 
I can forgive you confusing a fuel oil tank for the diesel tank because as a nuke machinist mate you probably didn't spend a lot of time replacing tank sensors and working on the diesel generator as I did and you probably didn't spend half as much time at sea as I did.  No harm, no foul.
You act as though anyone here has said anything to forgive about SSN/SSBN design other than you. The contempt in your posts for your fellow submariners and others who are interested in learning more about technological accomplishments is insulting. 
« Last Edit: April 26, 2018, 09:10:47 AM by Ranb »

Offline Abaddon

  • Saturn
  • ****
  • Posts: 1132
Re: Radiation
« Reply #2965 on: April 26, 2018, 09:12:12 AM »
Please stop using glow.  It makes your posts harder to read, and you need all the help you can get.
It is a common CT tactic to use unconventional formatting. For reasons unexplained, they think it somehow adds weight to their claims. One need only visit timecube to see such in action.

He did this on CQ also?  I must be going blind as I didn't recognize it.
Not that I am aware, but he is likely aware of the stricter regime there. I was referring to the general proclivity of fringe claimants to go font-crazy such as timecube. http://timecube.2enp.com/

Have fun trying to make head nor tale of it.

Offline Northern Lurker

  • Earth
  • ***
  • Posts: 109
Re: Radiation
« Reply #2966 on: April 26, 2018, 10:57:12 AM »
I was referring to the general proclivity of fringe claimants to go font-crazy such as timecube. http://timecube.2enp.com/

Have fun trying to make head nor tale of it.

My head hurts

Lurky

Offline LunarOrbit

  • Administrator
  • Saturn
  • *****
  • Posts: 1052
    • ApolloHoax.net
Re: Radiation
« Reply #2967 on: April 26, 2018, 11:05:50 AM »
Please stop using glow.  It makes your posts harder to read, and you need all the help you can get.

I should be able to override the styling of the font. I'll see what I can do this evening after I'm done work.
It suddenly struck me that that tiny pea, pretty and blue, was the Earth.
I put up my thumb and shut one eye, and my thumb blotted out the planet Earth.
I didn't feel like a giant. I felt very, very small.
- Neil Armstrong (1930-2012)

Offline nomuse

  • Jupiter
  • ***
  • Posts: 859
Re: Radiation
« Reply #2968 on: April 26, 2018, 11:21:20 AM »
For a moment I thought you meant a browser plug-in that would de-fontify TimeCube. That would be....

I dunno, the thing is such a work of art. Famous, too.

You know, way back when I was at a forum where if a poster misbehaved they'd be disemvoweled. Their posts would remain -- jst wtht n f th vwls.

Offline MBDK

  • Earth
  • ***
  • Posts: 237
  • BANNED
Re: Radiation
« Reply #2969 on: April 26, 2018, 01:13:40 PM »
You could not have been a Nuke or even a well trained submariner. If you had been then you would know the diesel tanks were in the ballast tanks and as such would not act as shielding to the the living spaces.  You would know that primary shielding was provided by polyethylene, lead, steel and water tanks used in the operation of the reactor.  You would know that the diesel tanks are placed in the ballast tanks to minimize the impact on trim.  Diesel is replaced by seatwater as it is consumed thereby negating a change in trim.  You embarrass all submarine sailors with this lack of institutional knowledge.

You were never a nuclear submariner.  There is so much wrong in your post, it is clear you have no idea what really exists.
"It ain't what they call you, it's what you answer to." - W. C. Fields

"Laugh-a while you can, monkey-boy." - Lord John Whorfin