I. Pomerantz, E. Mccary, A. Meadows, A. Arefiev, A. Bernstein, C. Chester, J. Cortez, M. Donovan, G. Dyer, E. Gaul, D. Hamilton, D. Kuk, A. Lestrade, C. Wang, T. Ditmire, B. Hegelich
{"title":"Laser generation of ultra-short neutron bursts from high atomic number converters","authors":"I. Pomerantz, E. Mccary, A. Meadows, A. Arefiev, A. Bernstein, C. Chester, J. Cortez, M. Donovan, G. Dyer, E. Gaul, D. Hamilton, D. Kuk, A. Lestrade, C. Wang, T. Ditmire, B. Hegelich","doi":"10.1117/12.2181494","DOIUrl":null,"url":null,"abstract":"At the Texas Petawatt laser facility we developed a novel ultra-short pulsed laser-driven neutron source generating an unprecedented output peak flux. Our results show a dramatic onset of high-energy electron generation from petawatt laser-irradiated plastic targets for targets thinner than a few microns. In this regime, the copious amounts of multi-MeV electrons emitted from the target are utilized to generate photo-neutrons from a metal converter. The neutrons are generated with a <50 ps pulse duration and a flux of 1018 n/cm2/s, exceeding any other pulsed or CW neutron source. In this paper, we will report on our measurement of the neutron yields produced from high atomic number converters.","PeriodicalId":347374,"journal":{"name":"Europe Optics + Optoelectronics","volume":"14 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2015-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Europe Optics + Optoelectronics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1117/12.2181494","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 4
Abstract
At the Texas Petawatt laser facility we developed a novel ultra-short pulsed laser-driven neutron source generating an unprecedented output peak flux. Our results show a dramatic onset of high-energy electron generation from petawatt laser-irradiated plastic targets for targets thinner than a few microns. In this regime, the copious amounts of multi-MeV electrons emitted from the target are utilized to generate photo-neutrons from a metal converter. The neutrons are generated with a <50 ps pulse duration and a flux of 1018 n/cm2/s, exceeding any other pulsed or CW neutron source. In this paper, we will report on our measurement of the neutron yields produced from high atomic number converters.
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