Accelerator Driven Systems by Ganapati Myneni @TEAC12

Accelerator Driven Systems
Summary
• BSCE is seeking world community's support for developing economic, super safe and efficient ASMR's for providing clean Air and Water for Humanity as envisaged by USA's A. Weinberg and India's H. Bhaba
• ANS, BARC, BSCE, DAE, ISOHIM and NTPC are organizing the First International Nuclear Hydrogen Conference 2024 in India August 19-20, 2024
ODU, VCU & VT ([e-mail])
International Symposium On Hydrogen In Matter ([e-mail])
Virginia ADS Consortium (a precursor to VNECA & VNEC)
BSCE Systems, Inc., Yorktown, Virginia, USA ([e-mail])
Ganapati Myneni, TEAC 12, Abilene, April 14, 2024
ThoriumRemix.com/ Thorium & MSR & Nuclear assets used in Thorium Remix project.

[@user-fk2mf4ln3s]

Did you know? Caesium-137 can be transmuted to stable Barium 136 & 137 by proton bombardment (~13 MeV) from an accelerator. In the process, a gamma ray and a neutron is released, which could be absorbed by Thorium, for instance. Even this fission product has more to give, if used creatively and treated with respect.

[@Ayvengo21]

With current accelerator efficiency that would require enormous amount of energy to process those isotopes this way. With a half life of 30 years that simply doesn't make much sense.

[@Ayvengo21]

11:57 if I understand it correctly protons are more preferable but with energy around 10GeV it should produce rain of neutrons and that exactly what is required for ADS to make whole idea profitable. Even if accelerator works in pulse mode that could be fine.

[@christopherleubner6633]

Just use a direct fast spectrum reactor and thorium can directly fission creating 3 free neutrons in the process. Use either a molten chloride or helium gas as the phase modereation medium. This will create a negative reactivity vs temperature. The chloride flux would be simply sodium chloride. In the helium gas version would be a silicon carbon compound of thorium. The chloride would be a pure fast spectrum and the HTGCR would be both fast and slow depending on operation temperature. An acellerator driven spallation source of either tungsten or gold csn create the neutron flux sufficient to initiate the reaction. ❤

[@YellowRambler]

So you use this device’s to turn Thorium into uranium and then transport the uranium to a PWR?
Instead of using a TMSR?

[@AndreiAndrei-pg8eg]

so much effort, time, money and brain power wasted on a stillborn idea.

[@kayakMike1000]

Could be worse, could have been your education. What is the stillborn idea? Is it in the making fertile material into fissile material? We do that already in breeder reactors, plutonium is created. Making uranium 233 makes great fuel as the fissile elements decay into background in centuries, not millenia. That seems great to me.
Is it the molten salt reactor? That reactor design is pretty darn good, as it can't melt down. It's normal operating conditions is melted down. Worst case scenario is probably overflow or spill.

[@christopherleubner6633]

No need to convert to 233U if the reactor is designed to operate at the fast spectrum of neutron field. An acellerator could easily generate the initial neutron flux to start the reactor. The neutron flux from a spallation target would easily exceed that from other sources and also generate the fast neutrons necessary. ❤

[@Ayvengo21]

@@kayakMike1000 They usually don't say nothing about producing protactinium 231 in a process which is source some unpleasant radiation. Guess it one of the reason why we don't see many of those reactors already. en.wikipedia.org/wiki/Isotopes_of_protactinium

[@Ayvengo21]

@@christopherleubner6633 That actually contradict with idea of Accelerator Driven Systems a bit. The point is when you turn off your accelerator nuclear fission stops so it can't meltdown even theoretically. To me looks like the idea of burning tar with laser. Tar doesn't burn on it's own but if you heat it then it can start to burn and produce more energy then you have used to heat it with a laser.

[@christopherleubner6633]

@Ayvengo21 the main issue with ADRs is that the energy to drive the acellerator will consume more than the reactor will generate as power. They do have uses as pulsed flux reactors for making useful radioisotopes though. In this case the reactor is a neutron multiplier.