Re: More Upgrades
Posted: Sun Apr 28, 2019 12:12 am
I was indeed quoting and am familiar with the D-D curve. All easy, useful slope disappears at 100kev and it really is useless much beyond 200kev in amateur hands. Forget Xrays. The slope and return in fusion for all future 100kev advances are just not worth the extra 100kev effort. (shielding, state licensing, irradiating the cat or dog, other family members and the neighbors.
Finally, being a log-log plot one can't help but notice that going from 300kev to 3mev you get a 10% increase in cross section.... worthless.....
We can't help but notice a full order of magnitude increase from 40kev to 100kev, beyond which, the "forlorn hope" begins, slope-wise.
It is a matter of losing slope fast to the point and that pouring in more juice just ain't worth the hassle in amateur hands.
Reason and logic coupled with amateur hands in a family home limit us all in a fusion effort. Smart folks can observe the slope. Reason and logic, reason and logic.
Once you actually have 100kv applied and are still alive, 50kv or 100kv more heaped on, is a real stretch...How much of the tapering off slope is one willing to chase?
Beam on target in a well done system will always outperform a "simple amateur fusor" even at 10% duty cycle at most any voltage. When I say simple amateur fusor, this means no ion guns, no extra ionizing or suppression field control grids. This is the kind of fusor that is made here.
Richard Hull
Finally, being a log-log plot one can't help but notice that going from 300kev to 3mev you get a 10% increase in cross section.... worthless.....
We can't help but notice a full order of magnitude increase from 40kev to 100kev, beyond which, the "forlorn hope" begins, slope-wise.
It is a matter of losing slope fast to the point and that pouring in more juice just ain't worth the hassle in amateur hands.
Reason and logic coupled with amateur hands in a family home limit us all in a fusion effort. Smart folks can observe the slope. Reason and logic, reason and logic.
Once you actually have 100kv applied and are still alive, 50kv or 100kv more heaped on, is a real stretch...How much of the tapering off slope is one willing to chase?
Beam on target in a well done system will always outperform a "simple amateur fusor" even at 10% duty cycle at most any voltage. When I say simple amateur fusor, this means no ion guns, no extra ionizing or suppression field control grids. This is the kind of fusor that is made here.
Richard Hull