Using Gamma Ray reflector to reduce mass of Shadow shield

AI Thread Summary
Using a V-shaped multi-layered gamma ray reflector could significantly reduce the mass of traditional shadow shields required for manned space vessels powered by radioactive rocket engines. This approach aims to reflect a portion of harmful gamma rays back into space, thus decreasing the amount of radiation that needs to be absorbed by the shadow shield. While the classical solution emphasizes distance from radioactive sources, a combination of reflection and reduced shielding mass offers a potentially more efficient design. The proposed method still necessitates a shadow shield, but its reduced mass could enhance spacecraft design and safety. Overall, this innovative concept could lead to advancements in radiation protection for space travel.
Sebastiaan
Messages
84
Reaction score
0
Let's say we have manned space vessel powered by a highly power but radioactive rocket engine, producing a lot of deadly gamma rays. The classical answer to this problem is to use a shadow shield. However, Nuclear Shadow Shields are very heavy.

What about the idea of instead of trying to absort all gamma rays, we reduce mass by using a V shaped Multi Layered Gamma ray reflector in front of the shadow shield. That way a good proportion of those gamma rays will be reflected back into space. Of cource you still need a shadow shield but it mass could be reduced considable because it needs to absorb a lot less gamma rays
 
Last edited:
Science news on Phys.org
I always thought that the "classical" solution to that was to keep the radioactive parts far away from the people, rather than a massive shield.

1207980d0347775ea965a39fa7929189.jpg
 
Well distance help also, but you are still going to need a shadow shield
 
Hello ! As we know by definition that: "Constructive interference occurs when the phase difference between the waves is an even multiple of π (180°), whereas destructive interference occurs when the difference is an odd multiple of π." But my question is in the case of destructive interference, what happens to the energy carried by the two electromagnetic waves that annihilate, the energy carried by the electromagnetic waves also disappears, or is transformed into some other type of...
I am currently undertaking a research internship where I am modelling the heating of silicon wafers with a 515 nm femtosecond laser. In order to increase the absorption of the laser into the oxide layer on top of the wafer it was suggested we use gold nanoparticles. I was tasked with modelling the optical properties of a 5nm gold nanoparticle, in particular the absorption cross section, using COMSOL Multiphysics. My model seems to be getting correct values for the absorption coefficient and...

Similar threads

Replies
6
Views
3K
2
Replies
52
Views
7K
Replies
4
Views
2K
Replies
1
Views
3K
Replies
7
Views
506
Back
Top