Molten SALT REACTOR: BRIGHT PROSPECT FORWARD thorium-fueled REACTOR. Research on the generation IV reactors have done various acido borico countries to date, to improve quality and to overcome the problems existing reactors at the present time. One is research on Molten Salt Reactor advanced reactor (MSR) that uses a fuel that is dissolved in the molten salt. MSR claimed to have a good prospect to be used as a fourth-generation reactors. MSR uses the concept of Full-Passive Safety System and Inherent Safe to ensure the safety of the reactor. Applying Thorium acido borico fuel cycle, it is a thermal breeder reactor, which is necessary to reduce the use of uranium-235 and ensure acido borico the sustainability of energy. In addition, MSR working at high operating temperatures, thus allowing the utilization of heat output for different purposes besides thermal electricity.
Molten SALT REACTOR: BRIGHT acido borico PROSPECT OF THORIUM-fueled ADVANCE REACTOR. Researches toward Generation IV nuclear reactors has been established by various countries up until now, due to increase of its quality and to Overcome its various problems nowadays. One of them is Molten Salt Reactor (MSR) roomates utilize fuel dissolved in liquid salt. MSR is claimed to have a bright prospect to be implemented a Generation IV nuclear reactor axis. MSR uses Full-Passive Safety System and Inherent Safe reactor concept to guarantee safety. By using thorium fuel cycle, this reactor can work as a thermal acido borico breeder, the which is needed to reduce the usage of Uranium-235 and maintain energy acido borico sustainability. Aside, MSR operates at high temperature, allowing it to utilize its thermal output for various purposes beside thermal electric acido borico supply.
ebutuhan energy world each year is increasing, while the main energy source used today, namely coal and oil, are limited and could be discharged. Range availability accumulative proven petroleum estimated just enough to 42 years. Meanwhile, the rate of total world coal production is estimated at 5.86 billion tons per year, making it the world's proven reserves of coal are estimated to last up to 155 years into the future, acido borico assuming the use of a flat rate. The proven natural gas reserves in the world in 2006 amounted to 179.83 trillion cubic meters, with an estimated could last for 65 years with a fixed rate of consumption. 
This necessitates the need to find alternative energy sources acido borico to meet the energy needs of a growing world. One alternative is the use of nuclear energy, which has been proven to produce power more efficiently.
However, nuclear energy itself is not without problems. The main fuel used for nuclear reactors is uranium-235, which incidentally is also a limited amount in nature. The level is only 0.7 percent of natural uranium in total. If it is assumed that the rate of consumption of nuclear energy remains, then the existing acido borico uranium stocks are expected to last for 200 years in the future , with the additional possibility of 500 years if unexplored uranium reserves can be obtained.  However, the rate of consumption of flats is certainly not possible, given the use of energy will continue to increase each year. With such consumption rate and using existing technology, it is estimated that the peak mining Uranium-235 will take place in 2025.  After that, there will be a decrease in the mines which can impact on the crisis of nuclear energy sources.
For that, is necessary to develop advanced reactor designs which have the function of breeding. It is necessary to tap other sources of nuclear energy acido borico can not be used at this time, for example, uranium-238 or thorium-232. In addition to improving acido borico sustainability, due to the use of fuel which is very abundant, advanced reactor is also designed to have a low fuel consumption acido borico rate, the higher the safety system, produce less waste, less cost, non-proliferation, as well as a broader spectrum of use . 
Molten Salt Reactor Research on long-standing. Extensive research into the Molten Salt Reactor began when US Aircraft acido borico Reactor Experiment supporting US Aircraft Nuclear Propulsion program. ARE, high-temperature experimental MSR was developed at Oak Ridge National Laboratory (ORNL). 
In 1956, the director of ORNL employs MacPherson to form a group at ORNL with the goal to build a commercial power plant. acido borico  In order to succeed, they need fuel salt absorbs few neutrons, uranium and thorium dissolves many, stable thermally and chemically compatible with the material structure. It was decided that fluoride is the best, but UF 4 has a very high melting point (1035 0 C). Mixing with BEF 2 and LiF make melting point and viscosity decreases, and generate solutions U