viewtopic.php?p=757831#p757831The details given there pertains to the Fusion Bossted Fission weapon. As you go higher in increasing the yield, weight automatically starts increasing as you need more power in the form of chemical explosives to compress them.

Check the graph, once the weight starts increasing, the yield flattens out. So to compare the 500 kt fusion boosted fission weapon to 50 kt or 100 kt may not be correct.

The term Boosting is loosely used to mention two stage TN weapon. So in one or other way you may be right.

Added later: The answer to BARC capability on fielding higher yield FBF weapon relies on its theoretical understanding on the entire fission process. For any FBF to be successful the basic fission design should be really good. This is where BARC stands out and their confidence level of FBF weapons.

dinesha wrote:Anujan wrote:

Now let us assume that a 12KT weapon is to be scaled to 60KT. There are two issues

(1) How much more Pu is needed ? How much more explosives are needed to bring the Pu together ? note that this might not be a linear function of the desired yield (double yield = double weight)

(2) Have we put in so much Pu that it can attain criticality without boosting gas ?

I dont know the answers. But its worth thinking about.

Relationship between fissile material (both Pu/U) and yield is skewed towards yield. Higher efficency is achieved in higher yield weapons. Tsar Bomba was most efficient of all the test..

For example: for medium tech. Capability and pure fission device:

1.5 kg of Pu or 4 Kg of HEU will produce a yield of 1 KT.

2.5 kg of Pu or 6 Kg of HEU will produce a yield of 5 KT.

3.5 kg of Pu or 9 Kg of HEU will produce a yield of 20 KT.

9 kg of Pu or 16.5 Kg of HEU will produce a yield of 100 KT.

Here is the link to the graph relating yield and quantity of Pu and HEU...

http://www.nrdc.org/nuclear/fissionw/fissionweapons.pdf

The details given there pertains to the Fusion Bossted Fission weapon. As you go higher in increasing the yield, weight automatically starts increasing as you need more power in the form of chemical explosives to compress them.

Check the graph, once the weight starts increasing, the yield flattens out. So to compare the 500 kt fusion boosted fission weapon to 50 kt or 100 kt may not be correct.

The term Boosting is loosely used to mention two stage TN weapon. So in one or other way you may be right.

Added later: The answer to BARC capability on fielding higher yield FBF weapon relies on its theoretical understanding on the entire fission process. For any FBF to be successful the basic fission design should be really good. This is where BARC stands out and their confidence level of FBF weapons.