{"title":"用于高重复惯性聚变的水平寻的激光器","authors":"Kazuhiro Agatsuma, Kohei Suzuki, Takuya Sugimoto, Kazuki Matsuo, Kenjiro Takahashi, Eiji Sato, Neisei Hayashi, Katsuhiro Ishii, Yoshitaka Mori","doi":"10.1088/1741-4326/ad64e8","DOIUrl":null,"url":null,"abstract":"\n For the commercial laser inertial fusion energy (IFE) reactor, a highly repetitive operation in which many fuel pellets must be illuminated by laser spots. One of the most efficient ways to achieve this is to control the laser pointing with following fluctuations of the target position. The paper shows a precise control of the laser pointing for horizontal direction with a repetition rate of 10 Hz. Free-falling test pellets of 1 mm in diameter have been illuminated by a laser spot of 1.6 mm in diameter with cancellation of horizontal fluctuation over 4 mm. The difference in centroid between the laser spot and the illuminated test pellets is 86 m as standard deviation. This corresponds to a 92% engagement within a 0.15 mm difference, which is a condition for a successful nuclear fusion at the Hamamatsu facility. This is the proof-of-principle demonstration of target-supply tracking and homing laser at a repetition rate of 10 Hz leading to a commercial reactor.","PeriodicalId":19379,"journal":{"name":"Nuclear Fusion","volume":null,"pages":null},"PeriodicalIF":3.5000,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Horizontal homing laser for high repetitive inertial fusion\",\"authors\":\"Kazuhiro Agatsuma, Kohei Suzuki, Takuya Sugimoto, Kazuki Matsuo, Kenjiro Takahashi, Eiji Sato, Neisei Hayashi, Katsuhiro Ishii, Yoshitaka Mori\",\"doi\":\"10.1088/1741-4326/ad64e8\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"\\n For the commercial laser inertial fusion energy (IFE) reactor, a highly repetitive operation in which many fuel pellets must be illuminated by laser spots. One of the most efficient ways to achieve this is to control the laser pointing with following fluctuations of the target position. The paper shows a precise control of the laser pointing for horizontal direction with a repetition rate of 10 Hz. Free-falling test pellets of 1 mm in diameter have been illuminated by a laser spot of 1.6 mm in diameter with cancellation of horizontal fluctuation over 4 mm. The difference in centroid between the laser spot and the illuminated test pellets is 86 m as standard deviation. This corresponds to a 92% engagement within a 0.15 mm difference, which is a condition for a successful nuclear fusion at the Hamamatsu facility. This is the proof-of-principle demonstration of target-supply tracking and homing laser at a repetition rate of 10 Hz leading to a commercial reactor.\",\"PeriodicalId\":19379,\"journal\":{\"name\":\"Nuclear Fusion\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.5000,\"publicationDate\":\"2024-07-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nuclear Fusion\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://doi.org/10.1088/1741-4326/ad64e8\",\"RegionNum\":1,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"PHYSICS, FLUIDS & PLASMAS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nuclear Fusion","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1088/1741-4326/ad64e8","RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"PHYSICS, FLUIDS & PLASMAS","Score":null,"Total":0}
Horizontal homing laser for high repetitive inertial fusion
For the commercial laser inertial fusion energy (IFE) reactor, a highly repetitive operation in which many fuel pellets must be illuminated by laser spots. One of the most efficient ways to achieve this is to control the laser pointing with following fluctuations of the target position. The paper shows a precise control of the laser pointing for horizontal direction with a repetition rate of 10 Hz. Free-falling test pellets of 1 mm in diameter have been illuminated by a laser spot of 1.6 mm in diameter with cancellation of horizontal fluctuation over 4 mm. The difference in centroid between the laser spot and the illuminated test pellets is 86 m as standard deviation. This corresponds to a 92% engagement within a 0.15 mm difference, which is a condition for a successful nuclear fusion at the Hamamatsu facility. This is the proof-of-principle demonstration of target-supply tracking and homing laser at a repetition rate of 10 Hz leading to a commercial reactor.
期刊介绍:
Nuclear Fusion publishes articles making significant advances to the field of controlled thermonuclear fusion. The journal scope includes:
-the production, heating and confinement of high temperature plasmas;
-the physical properties of such plasmas;
-the experimental or theoretical methods of exploring or explaining them;
-fusion reactor physics;
-reactor concepts; and
-fusion technologies.
The journal has a dedicated Associate Editor for inertial confinement fusion.