General Nuclear Thread.

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This is a thread about general nuclear physics and topics involving atomic science applications.

The setting of fallout is a nuclear based world. Themes, stories, and even gameplay are effected by it's presence contrasting to that of the player character.

This is a general gateway to the themes of nuclear science and how they relate to other topics including how role-playing games are made and formed, and how story elements are even effected.

This thread will continue as a general gateway for other topics.


Brief History





Preliminary Introduction To Nuclear Physics

 
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The nuclear warheads in Fallout had to have been relatively weak, since people could survive out of bunkers and sanctuaries, like the vaults. I wonder if someone has made an equation or something of the power of the bombs in Fallout.
 
biozeminadae1 said:
The nuclear warheads in Fallout had to have been relatively weak, since people could survive out of bunkers and sanctuaries, like the vaults. I wonder if someone has made an equation or something of the power of the bombs in Fallout.
Click to expand...
I remember something about how instead of using hydrogen bombs everybody was lobbing stupidly high amounts of atomic bombs at each other.
 
biozeminadae1 said:
The nuclear warheads in Fallout had to have been relatively weak, since people could survive out of bunkers and sanctuaries, like the vaults. I wonder if someone has made an equation or something of the power of the bombs in Fallout.
Click to expand...
Judging by the crater size of The Glow, at least some would have been super powerful.

Size of the crater:
BhC1r9B.png
 
A nuclear bunker buster,[1] also known as an earth-penetrating weapon (EPW), is the nuclear equivalent of the conventional bunker buster. The non-nuclear component of the weapon is designed to penetrate soil, rock, or concrete to deliver a nuclear warhead to an underground target. These weapons would be used to destroy hardened, underground military bunkers or other below-ground facilities. An underground explosion releases a larger fraction of its energy into the ground, compared to a surface burst or air burst explosion at or above the surface, and so can destroy an underground target using a lower explosive yield. This in turn could lead to a reduced amount of radioactive fallout. However, it is unlikely that the explosion would be completely contained underground. As a result, significant amounts of rock and soil would be rendered radioactive and lofted as dust or vapor into the atmosphere, generating significant fallout.



Massive Ordnance Penetrator
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GBU-57A/B Massive Ordnance Penetrator

GBU-57 MOP prototype
Type "Bunker buster" bomb
Place of origin United States
Service history
Used by United States Air Force
Production history
Manufacturer Boeing[1]
Specifications
Mass 30,000 pounds (14,000 kg)
Length 20.5 feet (6.2 m)
Diameter 31.5 inches (0.80 m)
The GBU-57A/B Massive Ordnance Penetrator (MOP) is a precision-guided, 30,000-pound (14,000 kg) "bunker buster" bomb used by the United States Air Force.[2] This is substantially larger than the deepest penetrating bunker busters previously available, the 5,000-pound (2,300 kg) GBU-28 and GBU-37.

The Massive Ordnance Penetrator (MOP) is a weapon system designed to accomplish a difficult, complicated mission of reaching and destroying an adversary's weapons of mass destruction located in well-protected facilities.[3]

Contents
Development[edit]
In 2002, Northrop Grumman and Lockheed Martin were working on the development of a 30,000-pound (13,600 kg) earth-penetrating weapon, said to be known as "Big BLU". But funding and technical difficulties resulted in the development work being abandoned. Following the 2003 invasion of Iraq, analysis of sites that had been attacked with bunker buster bombs revealed poor penetration and inadequate levels of destruction. This renewed interest in the development of a larger bunker buster, and the MOP project was initiated by the Defense Threat Reduction Agency to fulfill a long-standing Air Force requirement.[4]

The U.S. Air Force has not officially communicated a specific military requirement for an ultra-large bomb, but it does have a concept for a collection of massively sized penetrator and blast weapons: the so-called "Big BLU" collection, which includes the MOAB (Massive Ordnance Air Blast) bomb. Development of the MOP was performed at the Air Force Research Laboratory, Munitions Directorate, Eglin Air Force Base, Florida with design and testing work performed by Boeing. It is intended that the bomb will be deployed on the B-2 bomber, and will be guided using GPS.[5][6]

Northrop Grumman announced a $2.5-million stealth-bomber refit contract on 19 July 2007. Each of the U.S. Air Force's B-2s is to be able to carry two 14-ton MOPs.[7][8]

The initial explosive test of MOP took place on 14 March 2007 in a tunnel belonging to the Defense Threat Reduction Agency (DTRA) at the White Sands Missile Range, New Mexico.

On 6 October 2009, ABC News reported that the Pentagon had requested and obtained permission from the U.S. Congress to shift funding in order to accelerate the project.[9][10] It was later announced by the U.S. military that funding delays and enhancements to the planned test schedule meant the bomb would not be deployable until December 2010, six months later than the original availability date.[11]

The project has had at least one successful Flight Test MOP launch.[12]

On 7 April 2011, the USAF ordered eight MOPs plus supporting equipment, for $28 million.[13]

The Air Force took delivery of 20 bombs, designed to be delivered by the B-2 bomber, in September 2011. In February 2012, Congress approved $81.6 million to further develop and improve the weapon.[14]

On 14 November 2011, Bloomberg reported that the Air Force Global Strike Command started receiving the Massive Ordnance Penetrator and that the deliveries "will meet requirements for the current operational need".[15] The Air Force now has received delivery of 16 MOPs as of November 2011.[16] And as of March 2012, there is an "operational stockpile" at Whiteman Air Force Base.[17]

In 2012, the Pentagon requested $82 million to develop greater penetration power for the existing weapon.[1] A 2013 report stated that the development had been a success,[18] and B-2 integration testing began that year.[19]


  • MOP being offloaded in preparation for its first explosive test, 2007.


  • MOP underground at White Sands Missile Range before its first explosive test, 2007.


  • Mock up of MOP inside a bomb bay of a B-2 simulator, 2007.[7]


  • B-52 releases a MOP during a weapons test, 2009.
Next Generation Penetrator munition[edit]
On 25 June 2010, USAF Lt. Gen. Philip M. Breedlove said that the Next Generation Penetrator munition should be about a third the size of the Massive Ordnance Penetrator so it could be carried by affordable aircraft.[20] In December 2010, the USAF had a Broad Agency Announcement (BAA) for the Next Generation Penetrator (NGP).[21]

Global Strike Command has indicated that one of the objectives for the Next-Generation Bomber is for it to carry a weapon with the effects of the Massive Ordnance Penetrator. This would either be with the same weapon or a smaller weapon that uses rocket power, not unlike the WW II British/American Disney bomb used, to reach sufficient speed to match the penetrating power of the larger weapon.[22]

One of the current limitations of the MOP is that it lacks a void-sensing fuze and will therefore detonate after it has come to a stop, even if it passed by the target area.[23]

Specifications[edit]
  • Length: 20.5 feet (6.2 m)[24]
  • Diameter: 31.5 inches (0.8 m)[24]
  • Weight: 30,000 pounds (13,608 kilograms)
  • Warhead: 5,300 pounds (2,404.0 kilograms) high explosive
  • Penetration: 200 ft (61 m)[7]
See also[edit]
Specific large bombs
 
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