JP2003057392A - Method and device for generating high energy - Google Patents

Abstract

PROBLEM TO BE SOLVED: To generate thermal energy by performing nuclear annihilation treatment of radioactive waste at an economical cost using radiant light with energy and the number of photons that can cause nuclear transformation by Compton scattering, and carrying out the fission of nuclear fuel with high efficiency using generated neutrons. SOLUTION: The high energy generating device is provided with a radiation irradiating means 20; a nuclear reactor 10 having an auxiliary core part 12S and a main core part 12M; and a coolant circulating means 30 for transmitting generated thermal energy to the outside. The gamma-ray radiant light with energy and the number of photons that can cause nuclear transformation by Compton scattering is irradiated to perform the nuclear transformation of radioactive waste in the auxiliary core part 12S to thereby perform nuclear annihilation treatment, and the nuclear fuel in the main core part 12M is irradiated with the generated neutrons to generate thermal energy.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high energy generation method and device capable of transmuting radioactive waste for nuclear annihilation processing and extracting heat energy.

[0002]

2. Description of the Related Art High-level radioactive waste, such as uranium and plutonium, that has been used as fuel in nuclear power plant nuclear reactors is difficult to dispose because high-level radioactivity remains, and it must be packaged strictly. It is buried deep in the ground while being stored inside. As a method of disposing of such radioactive waste, instead of simply burying it in the ground as described above, a radioactive transmutation treatment is performed on the radioactive waste to obtain non-radioactive or low-radioactive substances, or a short half-life. Various tried examples are known for the method of converting into a substance. As an example thereof, a method has been proposed in which γ-rays are generated by bremsstrahlung, and the γ-rays are applied to radioactive wastes for nuclear transmutation to extract thermal energy from the nuclear fission.

The generation of γ-rays due to this bremsstrahlung is generated by irradiating a target material such as tungsten or tantalum with an electron beam. The γ-rays due to this bremsstrahlung are atoms composed of a nucleus and a system of electrons surrounding it. On the other hand, when an electron enters the system from the outside, it is decelerated by the electric field of the system composed of the nucleus and the electron, and this deceleration causes the energy to be changed to radiated light and generated. In the generation of synchrotron radiation by bremsstrahlung, the energy of electrons is used for the kinetic energy, ionization energy, excitation energy, etc. of atoms, and the energy used for bremsstrahlung is only a part, and the generation efficiency is extremely low. Therefore, even if the radioactive waste is irradiated with γ-rays by such a method and transmuted, the energy required for transmutation exceeds the energy generated by nuclear fission and loses its economic significance. It has not been.

As a method other than the nuclear transmutation method using gamma rays based on bremsstrahlung, a nuclear fragmentation apparatus using a proton beam has been proposed and is currently under construction. This is a huge facility, in which a proton beam is accelerated by a huge accelerator of several kilometers and the high-speed proton collides with the nucleus to destroy the nucleus, or neutrons are ejected through this process to launch the neutron. Is multiplied by a neutron multiplication method or the like, and the nucleus is converted by the multiplied neutrons.

[0005]

However, as described above, the irradiation of γ-rays by bremsstrahlung has a low nuclear transmutation efficiency, so the energy required for nuclear transmutation is too large, which is significant as a thermal energy generator (nuclear reactor). Is lost, and a practical device cannot be obtained. This is because the nuclear reaction cross section in the spectral distribution of the energy of γ rays increases in the range of specific energy states when nuclear giant resonance occurs, whereas the number of photons of γ rays generated by bremsstrahlung is Since the energy distribution is low level and almost flat, the number of incident photons does not increase even in the range where the nuclear reaction cross section increases, and the nuclear giant resonance effect is not effectively used. is there.

On the other hand, since a device that causes nuclear fission by a proton beam is a huge device, it is said that even the cost of constructing an accelerator, for example, costs several hundred billion yen.
It is clear that huge costs will be incurred. Moreover, it is still uncertain whether transmutation by this will be efficient. This is because it is uncertain how large the neutron multiplication factor can actually be. It is also not effective for objects with a small neutron cross section.

[0007] In consideration of the above problems, the present invention irradiates waste with radiant light having a photon number at a level of energy capable of transmuting radioactive waste to perform nuclear annihilation processing, and high thermal energy. It is an object of the present invention to provide a high energy generation method capable of generating the energy.

Another object of the present invention is to provide an apparatus for carrying out the above method, and to irradiate the nuclear fuel with neutrons generated in the nuclear annihilation process to generate high energy. It is what

[0009]

As a means for solving the above problems, the present invention provides a nuclear giant resonance when a radioactive waste is irradiated with radiant light to absorb photons of the radiated light to cause nuclear giant resonance. The photon is generated by nuclear giant resonance by irradiating the synchrotron radiation generated by Compton scattering so that the number of photons increases to the peak corresponding to the spectral distribution value of the radiated light energy within a certain range including the peak value where the resonance cross section increases. Is absorbed to cause nuclear transmutation, thereby nuclear treatment of waste and generation of thermal energy, and neutrons emitted by the occurrence of nuclear transmutation are injected into nuclear fuel to cause nuclear fission and generate thermal energy. The high energy generation method is used.

As an apparatus for carrying out the above-mentioned method, a sub-core portion for accommodating radioactive waste is located at the center of the reactor vessel, a reflector provided on the inner circumference of the vessel, and a nuclear fuel pipe between the moderator and the sub-core portion. A reactor is formed by providing a main core part consisting of a cooling pipe,
Radiant light irradiating means for radiating radiant light from the outside of the reactor vessel to radioactive waste in the sub-core, and circulating coolant for cooling the core from the inside to the outside of the reactor to transfer the thermal energy generated in the core to the outside. Corresponding to the spectral distribution value of the radiant light energy within a certain range including the peak value that the cross-sectional area increases due to the nuclear giant resonance caused by the irradiation and radiation of the radiant light from the radiant light irradiating means. , The synchrotron radiation generated by Compton scattering is irradiated by the synchrotron radiation irradiation means so that the number of photons increases to a value within a certain range including the peak value, and nuclear transmutation is caused by nuclear giant resonance. Neutrons emitted by the annihilation process to irradiate the nuclear fuel in the main core to cause nuclear fission, and in the annihilation process and nuclear fission, heat energy is generated from the main and auxiliary cores respectively, and the heat energy is circulated by the coolant circulation process. It can be a high energy generating device configured to extract to the outside by.

According to the method and apparatus for generating high energy of the present invention having the above-mentioned structure, it is possible to perform nuclear annihilation treatment of radioactive waste and generate heat energy. When irradiating radioactive waste with synchrotron radiation, it must be at a level that can cause transmutation. Such emitted light is
Difficult to obtain with bremsstrahlung and relatively easy to obtain using Compton scattering.

The phenomenon of nuclear giant resonance is utilized to cause nuclear transmutation in radioactive waste. In nuclear giant resonance, the cross-section of resonant absorption of photons increases in the region of a specific energy spectrum of radiation. Therefore, radiated light by Compton scattering that has a level of energy capable of causing nuclear transmutation in the corresponding energy spectrum region and has a peak number of photons is used. The synchrotron radiation by such Compton scattering reverses the rotation direction of the spin of each particle when the laser beam collides with the electron beam accelerated to the relativistic velocity, and the helicity product of both becomes -1. When the particles are rotated and collided with each other, radiated light having a peak (probability distribution) of photons at a predetermined energy level is obtained. The emitted light thus obtained is obtained as γ rays.

Such synchrotron radiation is emitted because the number of photons increases corresponding to the peak region of the cross section absorbed by the nuclear giant resonance and is obtained at a level sufficient to cause nuclear conversion. As a result, nuclear transmutation is caused in the radioactive waste, and the nuclear annihilation process is performed. When this nuclear annihilation process is caused by transmutation, neutrons are simultaneously emitted. The neutrons emitted will be injected into the nuclear fuel if it is placed adjacent to the radioactive waste and cause nuclear fission. Therefore, this will generate thermal energy.

In the apparatus for carrying out the above heat energy generation method, the radioactive waste is stored in the sub-core.
Radiation light of a level at which photons can cause a nuclear transmutation action with the above-mentioned predetermined energy is irradiated from the radiant light irradiating means to cause nuclear transmutation, and nuclear annihilation processing is performed and thermal energy is generated. Then, the generated neutrons are applied to the nuclear fuel in the main core, and the nuclear fuel reacts by causing nuclear fission. This produces a huge amount of heat energy. These heat energies are transmitted to the outside by the coolant circulating means, and the heat energies further drive the steam turbine and the like to rotate the generator,
Power is generated.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an overall schematic configuration diagram of a high energy generation device of an embodiment. As shown,
In the high energy generator, the auxiliary core portion 12 _S containing the radioactive waste G is provided at the center of the reactor vessel 11, the reflector 13 and the moderator 14 are provided on the inner circumference of the reactor vessel 11, and the auxiliary core portion 12 _S is provided. Radiation light is emitted to the nuclear reactor 10 provided with the main core part 12 _{M in} which the nuclear fuel pipes 15 and the cooling pipes 16 are alternately arranged between the moderator 14 and the radioactive waste G in the auxiliary core part 12 _S. The radiant light irradiating means 20 for irradiating from outside, the main and auxiliary core portions 12 _M ,
A coolant circulating means 30 is provided for sending a coolant for cooling 12 _S from the inside of the furnace to the outside of the furnace and for transmitting the heat energy generated in both core parts to the outside.

As shown in FIG. 2, the nuclear reactor 10 has a sub-core portion 12 _S attached to the center of a reactor vessel 11 by a supporting member 11 a provided at appropriate intervals in the longitudinal direction.
The sub-reactor part 12 _S stores radioactive waste in a hollow cylinder like a fuel rod used in a conventional nuclear reactor, one end is a window 12w made of graphite, and the other end is closed by an end wall. . The auxiliary core portion 12 _{S in} the illustrated example has a diameter of about several cm and a length of m.
It is a class. Pellets of the radioactive waste G stored in the second storage container 18 _R installed outside are sent to the sub-core portion 12 _S via the pipe 18 b.

Since this pipe 18b is connected to the auxiliary core portion 12 _S near the γ-ray incident end, the pellets that have undergone the nuclear transmutation action by γ-rays are sent to the outlet side of the auxiliary core portion 12 _S ,
The second recovery container 19 is connected by the pipe 19a connected to the outlet side.
_It is sent to _R. Although not shown, a pressure pump or suction pump for moving the pellets from the second storage container 18 _R to the second recovery container 19 _R via the auxiliary core portion 12 _S is provided at an appropriate position.

The furnace vessel 11 is formed as a pressure vessel using a stainless steel plate, and a neutron reflecting material 13 is provided on the inner circumference thereof.
Is attached, and the moderator 14 is provided further inside. For the moderator 14, water or the like is used also as a reflector. An externally installed first storage container 18 _P is connected to the nuclear fuel pipe 15 of the main core portion 12 _M via a pipe 18 a, and the nuclear fuel pellets stored in the first storage container 18 _P are sent to it. Come on. Primary cooling water flows through the cooling pipe 16 provided in contact with the nuclear fuel pipe 15.

A pipe line 17p is provided inside the nuclear fuel pipe 15 and the cooling pipe 16, and in the space of the pipe line 17p, a neutron multiplying metal sphere or a nucleus for transmutation such as ⁹⁹ TC, Pd, ¹²⁷ Cs, etc. The pellets are inserted and these form the neutron multiplication means 17. The pellets may contain a neutron multiplier such as Be or Al, or graphite. In addition, furnace container 1
1. The windows 11w and 12w for γ-ray transmission provided at the ends of the sub-core portion 12s are made of a light alloy material such as graphite or Al.

The radioactive waste pellets of the nuclear transmutation object stored in the second storage container 18 _R are, for example, iodine ¹²⁹ I, technetium ⁹⁹ TC, and neptium in the illustrated example.
It is a long-lived fission element such as ²³⁷ Np, Americium Am, and Cesium ¹³⁷ Cs, and its diameter is in the order of cm.
The nuclear fuel pellets stored in the first storage container 18 _P are, for example, uranium ²³⁵ U, ²³⁸ U and plutonium Pu.
It is a sphere in which ²³⁹ , Th ²³² and the like are mixed with graphite and the like.

The γ-ray radiated light with which the nuclear reactor 10 is irradiated is transmitted by the radiant light irradiating means 20, which irradiates with γ-rays generated by a γ-ray generator 21 as shown in FIG. The wire is configured to be transmitted by an optical transmission member such as the vacuum duct 22. Although not shown in detail, the γ-ray generation device 21 is a device based on a special Compton scattering method in which a pulsed laser beam and a bunch (bundle) of an electron beam collide with each other to generate γ-ray emission light. The γ-ray emitted light generated by this device has the following characteristics.

When radioactive waste is irradiated with γ-rays generated by the γ-ray generator 21 to cause nuclear transmutation, as shown in FIG. Positron pair creation occurs. The effective cross-sectional area of atoms that contribute to this counter-creation is large and is several b to 10 b, but the cross-sectional area that contributes to nuclear giant resonance when causing nuclear transmutation is extremely small, several hundred mb. The energy of this nuclear giant resonance is 14 to 16 MeV at the center value, and the resonance width is 3 to 4 MeV. Therefore, in order to effectively operate the nuclear giant resonance, the number of photons absorbed in the nuclear giant resonance corresponding to the central energy of the above-mentioned γ-ray that maximizes the cross section of the nuclear giant resonance causes nuclear conversion. Γ-rays must be at or above a sufficient level.

On the other hand, looking at changes in the energy spectrum distribution of the number of photons due to the method of generating γ rays, FIG.
In (a) of Figure 3, (c) shows the change in the number of photons due to bremsstrahlung, and (b) shows the change in the number of photons due to general Compton scattering. And (a) is the change in the number of photons in the special Compton scattering method used in the present invention. In the collision of the laser beam and the electron beam, the particle spins of both are directed in a specific direction, and the rotation directions of both are reversed. Is generated so that the product of its helicity becomes −1. In this case, as shown in the drawing, the probability distribution of the number of photons occurs so as to reach a peak in the region corresponding to the energy center value of the predetermined region including the energy value where the absorption cross section due to the nuclear giant resonance of γ-rays is maximum. .

However, the graph shown in the figure shows the probability distribution of the number of photons viewed as the spectral distribution of the generated γ-ray energy with the energy of the electron beam used for bremsstrahlung and Compton scattering at the same level. In the graph of (a), the number of photons peaks near the gamma ray energy of 16 MeV, and therefore the number of photons by this method is orders of magnitude higher than that by the bremsstrahlung method, which is several times or more that of the general Compton scattering method. The actual number of photons is about 10 ¹⁷ to 10 ²¹ ,
It is at a level sufficient to cause transmutation of radioactive waste. Further, the γ-rays by this special Compton scattering method are extremely thin and hardly spread.

The γ-rays generated under the specific conditions as described above are transmitted from the γ-ray irradiating means 20 to the reactor 10, and the sub-core 1
The radioactive waste pellets are irradiated through the 2 s transmission window 12w to continue the transmutation and extract the thermal energy. In the nuclear reactor equipment of the illustrated embodiment, the radioactive waste is extinguished by transmutation in the sub-core portion 12s, and at the same time, the heat energy generated by the extinction process is taken out to the outside and the neutrons generated by the transmutation are mainly used. The nuclear fuel is injected into the core 12 _M to fission the nuclear fuel, and the thermal energy generated by this is taken out to the outside. The point that power is generated by driving the steam turbine by driving the steam turbine with the energy thus taken out is the same as the conventional nuclear power generation facility.

Further, the illustrated nuclear reactor equipment is, for example, iodine ¹²⁹ I, Pd, Z as radioactive waste to be extinguished.
The main purpose is to eliminate long-lived fission elements such as n and cesium ¹³⁵ Cs. This is for the following reason. High-level radioactive waste discharged from nuclear reactors contains various radioactive materials, and among these, long-lived fission elements continue to emit radiation for a long time (1 million years), are highly toxic, and are buried deep underground. Even if it does, it is difficult to contain it.
It is easy to contain if it is converted into a substance with a life of (years). However, it is of course possible to perform the annihilation treatment even for fission elements other than those having a long life.

In the nuclear reactor equipment of the embodiment on the premise of the radioactive waste extinguishing process as described above, γ rays are emitted to the sub-core 12s.
As shown in FIG. 4, when irradiated with, the substance acts on the substance in the pellet of the radioactive waste, neutrons are knocked out by the (γ, n) reaction, and at the same time, electron-positron pair creation occurs,
Transmutation takes place. In this case, the pellet spheres of the reaction target sent from the second storage container 18 _R are
Enter from the left entrance of 2s, irradiated for several days or months, and exit from the right exit. The pellet spheres circulate slowly.
The pellet balls discharged from the outlet are collected in the second collecting container 19 _R.

FIG. 6 shows an example of the nuclear transmutation. (A) The figure is
¹³⁷ Cs transmutation, (b) Figure ²³⁷ Np transmutation,
(C) The figure shows ¹²⁹ I transmutation. (A) ¹³⁷ Cs in the figure
When γ-rays are applied to, neutrons are knocked out and change to ¹³⁶ Cs, and this ¹³⁶ Cs decays into beta (β) and changes to ¹³⁶ Ba to become a stable nucleus. In ²³⁷ Np in the figure (b), the nucleus has asymmetry, and therefore has a double peak in cross section.

When γ rays are applied, γ is generated by the (γ, n) reaction.
After absorbing the rays, it emits neutrons to reach ^{2 36} Np. After that, it collapses and becomes ²⁰⁸ Pb through various processes. However, this process is complex and requires nearly 80 years to reach a stable nucleus, which is much shorter than the half-life of ²³⁷ Np, which is one million years. ¹²⁹ I in the figure (c) is due to γ-ray irradiation
^It immediately becomes β stable from ¹²⁸ I and changes to ¹²⁸ Xe, becoming a stable nucleus. The numerical values in parentheses in FIGS. (B) and (c) are cross sections of nuclear giant resonances.

When the nuclear transmutation action is performed in the sub-core portion 12s, the knocked out neutrons strike the neutron multiplying sphere, which is the neutron multiplying means immediately outside thereof, to multiply the neutrons (n, 2).
The number of neutrons is multiplied by the action of (n) and (n, 3n). When this multiplied neutron acts on the nuclear fuel pellets of the main core 12 _M , the nuclear material of the nuclear fuel begins to undergo nuclear fission and heat energy is generated. The generation of thermal energy by nuclear fission of nuclear fuel is based on a known principle, and detailed description thereof will be omitted.

The thermal energy generated by the sub core section 12s and a main core section 12 _M is applied to the primary coolant flowing through the provided in contact with the main core section 12 _M of nuclear fuel pipe 15 within the cooling tube 16 The steam, which is sent to the outside by the circulation of the primary cooling water and is given the heat energy by the heat exchanger 31, is sent to the turbine 41, whereby the generator 43 is rotated and power is generated.

_Assuming that the heat energy generated in the sub-core portion 12s and the main core portion 12 _M is 1 which is the energy required to generate the γ-rays incident on the reactor 10, the sub-core portion 1
In 2s 0.5 times, the main core section 12 _M 10 to 1000
Double energy is generated. Then, as soon as the sub in the core portion 12s with neutrons generated simultaneously with disappearance processing of radioactive waste takes place causing nuclear fission nuclear fuel in the main reactor core 12 _M, also stops the irradiation of γ-rays neutron Supply is also stopped, and nuclear fission in the main core 12 _M is stopped.

Therefore, the main reactor core 12 _M does not run out of control, and extremely safe nuclear reactor equipment can be obtained. In this case, it is premised that the nuclear fuel is placed in a subcritical state in the nuclear fuel pipe 15 of the main core portion 12 _M , and fission action is generated in the subcritical state.

The sub-reactor core 12 _S is supposed to be mixed with radioactive waste such as iodine ¹²⁹ I and neptium ²³⁷ Np and fed into the sub-reactor core 12 _S for nuclear treatment.
It is also possible to separate the sub-core portion 12 _S1 and the second sub-core portion 12 _S2 . In this case, the sub-core portion 12 _S of the above embodiment is the first sub-core portion 12 _S1, and radioactive waste of iodine ¹²⁹ I is sent to this. Although not shown in the figure, a plurality of other conduits similar to the nuclear fuel pipe 15 are circularly arranged between the conduit 17p of the neutron multiplication means 17 and the nuclear fuel pipe 15 or the cooling pipe 16. The second sub-core portion 12 _S2 is provided in the shape of a circle.

Neptium ²³⁷ is contained in the second sub-core portion 12 _S2.
Send in radioactive waste such as Np and technetium Tc. Therefore, although not shown, the storage container 18 _R ′ and the recovery container 19 _R ′ are also connected to the second auxiliary core portion 12 _S2 in the same manner as the first auxiliary core portion 12 _S1 . When γ-ray radiation is applied to the first sub-core 12 _S1 to transmutate iodine ¹²⁹ I, as described above, iodine ¹²⁹ I is converted into stable nuclei to generate thermal energy and simultaneously emit neutrons. These neutrons then act on the neutron multiplication means 17, (n,
Neutrons are further multiplied by the actions of 2n) and (n, 3n).

The neutrons thus multiplied hit the radioactive wastes such as ²³⁷ Np and Tc in the second sub-core 12 _{S2 on the} outside thereof, and the nuclear transmutation is also caused by this (n, n) action. Then, the nuclear annihilation process is performed. In this case, the multiplied neutrons are not only the nuclear annihilation process by transmutation,
It is the same as the first embodiment described above in that it acts on the nuclear fuel of the main core 12 _M together with the neutrons generated by transmutation to cause nuclear fission and generate high energy. The method of this modified example is advantageous in that it is easily soluble in water, such as iodine ¹²⁹ I, and that radioactive waste that is difficult to eliminate because it is a long-lived nucleus can be intensively treated.

[0037]

As described above in detail, the high energy generation method and apparatus of the present invention conducts nuclear transmutation by irradiating radioactive waste with radiant light at a level of energy and photon number capable of causing nuclear transmutation. The nuclear annihilation process of radioactive waste is performed by applying the neutrons generated to the nuclear fuel to cause nuclear fission and generate thermal energy. Moreover, there is a remarkable effect that the nuclear fuel can be fissioned by utilizing the neutrons emitted thereby to take out the thermal energy.

[Brief description of drawings]

FIG. 1 is an overall schematic configuration diagram of a reactor facility according to an embodiment.

FIG. 2 is a vertical cross-sectional view of the same nuclear reactor.

FIG. 3 is a partial cross-sectional view taken along the arrow III in FIG.

FIG. 4 is a cross-sectional view of the auxiliary core part.

5A is an energy spectrum distribution diagram of the number of photons of γ rays, and FIG. 5B is an energy spectrum distribution diagram of the nuclear giant resonance cross section of γ rays.

FIG. 6 is an explanatory diagram of a specific example of transmutation.

[Explanation of symbols]

10 Reactor 11 Reactor Vessel 12s Sub-core 12 _M Main Core 13 Reflector 14 Moderator 15 Nuclear Fuel Pipe 16 Cooling Pipe 17 Neutron Multiplier 18 _P First Storage Vessel 18 _R Second Storage Vessel 19 _P First Recovery Container 19 _R Second recovery container 20 Radiation irradiation means 21 γ-ray generator 22 Optical transmission means 30 Coolant circulation means 40 Power generation equipment 41 Steam turbine 42 Condenser 43 Generator

Claims (4)

[Claims] 1. A radiant light energy within a certain range including a peak value at which a nuclear giant resonance cross-section increases when irradiating a radioactive waste with radiant light to absorb photons of the radiant light to generate a nuclear giant resonance. The synchrotron radiation generated by Compton scattering is applied so that the number of photons increases to the peak corresponding to the spectral distribution value of the A high-energy generation method in which thermal energy is generated by causing neutrons emitted by the occurrence of transmutation to enter into nuclear fuel and causing nuclear fission. 2. A main core comprising a nuclear fuel pipe and a cooling pipe between the auxiliary core part, which is provided with an auxiliary core part for storing radioactive waste in the center of the reactor container, and a reflector and a moderator, which are provided on the inner circumference of the container. Section to form a nuclear reactor, and radiate light irradiating means for irradiating radioactive waste in the sub-core with radiant light from outside the reactor vessel and a coolant for cooling the core from the inside to the outside of the reactor Radiation within a certain range including a peak value that increases the cross-sectional area due to nuclear giant resonance caused by irradiation and absorption of radiant light from the radiant light irradiating means, provided with a coolant circulating means for transmitting heat energy generated in Corresponding to the spectral distribution value of light energy, synchrotron radiation is generated by Compton scattering so that the number of photons increases to a value within a certain range including the peak value, and radiated by the synchrotron radiation irradiation means to perform nuclear conversion by nuclear giant resonance. Waste produced by this transmutation Neutrons emitted in the annihilation process to irradiate the nuclear fuel in the main core to cause nuclear fission, and in the annihilation process and the nuclear fission, thermal energy is generated from the main and auxiliary cores, respectively, and the thermal energy is used as a coolant circulation means. High-energy generator configured to be taken out by the. 3. A neutron multiplying means is provided between the auxiliary core part and the main core part in the nuclear reactor, and the neutron multiplying means comprises a neutron multiplier contained in a tube. The high energy generator according to claim 2. 4. A second sub-core part for accommodating radioactive waste is provided between the neutron multiplication means and the main core part, and a radioactive waste of a different type from the first sub-core part is irradiated by neutrons to generate nuclear waste. The high energy generation device according to claim 3, wherein the high energy generation device is configured to be extinguished.