{"title":"LMJ授时和基准系统:全球架构和性能概述","authors":"V. Drouet, M. Prat, P. Raybaut, D. Sainte-Beuve","doi":"10.1109/FCS.2015.7138908","DOIUrl":null,"url":null,"abstract":"The Laser MegaJoule (LMJ) timing system has to synchronize 176 laser beams better than 40 ps rms to compress symmetrically the millimeter-size target in order to ignite the deuterium and tritium filled capsule despite the fact that the quadruplet laser sources are separated within the building by several hundreds of meters. This kind of performance is also required for fiducial pulses used to temporally mark laser and plasma diagnostics. After the LMJ was officially commissioned on October 23rd 2014 with a first successful physics campaign, this article offers an overview of the final overall timing system architecture and its performances. The latest results since our presentation during the previous EFTF conference edition [1] as part of ongoing studies on time drifts are also presented.","PeriodicalId":57667,"journal":{"name":"时间频率公报","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2015-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"LMJ timing and fiducial system: Overview of the global architecture and performances\",\"authors\":\"V. Drouet, M. Prat, P. Raybaut, D. Sainte-Beuve\",\"doi\":\"10.1109/FCS.2015.7138908\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The Laser MegaJoule (LMJ) timing system has to synchronize 176 laser beams better than 40 ps rms to compress symmetrically the millimeter-size target in order to ignite the deuterium and tritium filled capsule despite the fact that the quadruplet laser sources are separated within the building by several hundreds of meters. This kind of performance is also required for fiducial pulses used to temporally mark laser and plasma diagnostics. After the LMJ was officially commissioned on October 23rd 2014 with a first successful physics campaign, this article offers an overview of the final overall timing system architecture and its performances. The latest results since our presentation during the previous EFTF conference edition [1] as part of ongoing studies on time drifts are also presented.\",\"PeriodicalId\":57667,\"journal\":{\"name\":\"时间频率公报\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2015-04-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"时间频率公报\",\"FirstCategoryId\":\"1089\",\"ListUrlMain\":\"https://doi.org/10.1109/FCS.2015.7138908\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"时间频率公报","FirstCategoryId":"1089","ListUrlMain":"https://doi.org/10.1109/FCS.2015.7138908","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
LMJ timing and fiducial system: Overview of the global architecture and performances
The Laser MegaJoule (LMJ) timing system has to synchronize 176 laser beams better than 40 ps rms to compress symmetrically the millimeter-size target in order to ignite the deuterium and tritium filled capsule despite the fact that the quadruplet laser sources are separated within the building by several hundreds of meters. This kind of performance is also required for fiducial pulses used to temporally mark laser and plasma diagnostics. After the LMJ was officially commissioned on October 23rd 2014 with a first successful physics campaign, this article offers an overview of the final overall timing system architecture and its performances. The latest results since our presentation during the previous EFTF conference edition [1] as part of ongoing studies on time drifts are also presented.