التفاصيل البيبلوغرافية
| العنوان: |
METHOD OF DETERMINING NUCLEAR FUSION IRRADIATION COORDINATES, DEVICE FOR DETERMINING NUCLEAR FUSION IRRADIATION COORDINATES, AND NUCLEAR FUSION DEVICE |
| Document Number: |
20120155590 |
| تاريخ النشر: |
June 21, 2012 |
| Appl. No: |
13/388500 |
| Application Filed: |
July 20, 2010 |
| مستخلص: |
An object of the present invention is to efficiently improve uniformity of energy lines to be irradiated. A method of determining nuclear fusion irradiation coordinates according to the present invention is a method of calculating irradiation coordinates when energy lines are irradiated onto a nuclear fusion target, and comprises an initial arrangement step S202 of virtually arranging electric charges Qi at initial coordinates of the number of irradiation coordinates NB on a spherical surface S0 set by using random numbers, a coordinate analysis step S203 of analyzing coordinates ri of the electric charges Qi in time series based on coulomb forces acting among the electric charges Qi by constraining the coordinates ri onto the spherical surface S0, potential evaluation steps S205 and S206 of determining a timing at which potential energies of the electric charges Qi were stabilized based on the coordinates ri, and an irradiation coordinate deriving step S207 of deriving coordinates ri at the timing at which potential energies were stabilized as irradiation coordinates of energy lines in a case where a nuclear fusion target is arranged at the center of the spherical surface S0. |
| Inventors: |
Murakami, Masakatsu (Suita-shi, JP); Sarukura, Nobuhiko (Suita-shi, JP); Azechi, Hiroshi (Suita-shi, JP); Yasuhara, Ryo (Naka-ku, JP); Kawashima, Toshiyuki (Hamamatsu-shi, JP); Kan, Hirofumi (Hamamatsu-shi, JP) |
| Assignees: |
HAMAMATSU PHOTONICS K.K. (Hamamatsu-shi, Shizuoka, JP), OSAKA UNIVERSITY (Suita-shi, JP) |
| Claim: |
1. A method of determining nuclear fusion irradiation coordinates for calculating irradiation coordinates of energy lines when the energy lines are irradiated onto nuclear fusion fuel, comprising: an initial arrangement step of virtually arranging a predetermined number of electric charges at the predetermined number of initial coordinates on a spherical surface set by using random numbers by an information processing device; a coordinate analysis step of analyzing coordinates of the predetermined number of electric charges arranged at the initial coordinates in time series based on coulomb forces acting among the predetermined number of electric charges by constraining the coordinates onto the spherical surface by the information processing device; a potential evaluation step of determining a timing at which potential energies of the predetermined number of electric charges were stabilized based on the coordinates analyzed in the coordinate analysis step by the information processing device; and an irradiation coordinate deriving step of deriving coordinates of the predetermined number of electric charges at the timing determined in the potential evaluation step as irradiation coordinates of the energy lines in a case where nuclear fusion fuel is arranged at the center of the spherical surface by the information processing device. |
| Claim: |
2. The method of determining nuclear fusion irradiation coordinates according to claim 1, wherein in the potential evaluation step, it is determined whether a temporal change of the sum of potential energies of the predetermined number of electric charges at the timing is not more than a predetermined value. |
| Claim: |
3. A device for determining nuclear fusion irradiation coordinates as an information processing device that calculates irradiation coordinates of energy lines when the energy lines are irradiated onto nuclear fusion fuel, comprising: an initial arrangement means that virtually arranges a predetermined number of electric charges at the predetermined number of initial coordinates on a spherical surface set by using random numbers; a coordinate analysis means that analyzes coordinates of the predetermined number of electric charges arranged at the initial coordinates in time series based on coulomb forces acting among the predetermined number of electric charges by constraining the coordinates onto the spherical surface; a potential evaluation means that determines a timing at which potential energies of the predetermined number of electric charges were stabilized based on the coordinates analyzed by the coordinate analysis means; and an irradiation coordinate deriving means that derives coordinates of the predetermined number of electric charges at the timing determined by the potential evaluation means as irradiation coordinates of the energy lines when nuclear fusion fuel is arranged at the center of the spherical surface. |
| Claim: |
4. The device for determining nuclear fusion irradiation coordinates according to claim 3, wherein the potential evaluation means determines whether a temporal change of the sum of potential energies of the predetermined number of electric charges at the timing is not more than a predetermined value. |
| Claim: |
5. A nuclear fusion device manufactured by using the method of determining nuclear fusion irradiation coordinates according to claim 1, comprising: a nuclear fusion target for igniting a nuclear fusion reaction by irradiating energy lines; and the predetermined number of energy line sources provided at positions corresponding to irradiation coordinates calculated by the method of determining nuclear fusion irradiation coordinates when the nuclear fusion target is arranged at the center of the spherical surface. |
| Current U.S. Class: |
376/100 |
| Current International Class: |
21; 06 |
| رقم الانضمام: |
edspap.20120155590 |
| قاعدة البيانات: |
USPTO Patent Applications |