Cov kws tshawb fawb ntawm Helmholtz-Zentrum Dresden-Rossendorf hauv lub tebchaws Yelemes tau ua tiav qhov tseem ceeb hauv laser plasma acceleration. Siv txoj hauv kev tshiab, lawv tau ua tiav lub zog proton ntawm li 80 MeV rau 150 MeV. Qhov kev ua tiav no tau zoo dua li cov ntaub ntawv ceev proton yav dhau los, tso cai rau cov khoom siv laser me kom ua tiav qib zog uas tsuas muaj nyob hauv cov chaw loj dua kom deb li deb. Qhov kev tshawb fawb zaum kawg no yuav tsum txhawb nqa kev tsim kho tshuaj thiab cov ntaub ntawv tshawb fawb. Cov ntaub ntawv cuam tshuam tau luam tawm nyob rau hauv phau ntawv journal Nature Physics ntawm 13th.
Piv nrog rau cov tsoos accelerators, laser plasma accelerators tsis tso siab rau cov xov tooj cua muaj zog los tsav cov khoom, tab sis siv lasers kom nrawm cov khoom. Txawm li cas los xij, cov thev naus laus zis no tam sim no nyob rau theem tshawb fawb, thiab tsuas yog ob peb lub tshuab laser loj hauv ntiaj teb tuaj yeem ua kom cov protons mus rau qib zog ntawm 100 mega-electron volts.
Tim Ziegler, tus thawj coj ntawm kev tshawb fawb, tau hais tias txhawm rau kom ua tiav lub zog accelerator zoo sib xws siv cov khoom siv laser me me thiab cov pulses luv dua, lawv coj kom zoo dua cov yam ntxwv ntawm laser flashes, uas yog, ib feem me me ntawm lub laser zoo li " preemptive khiav", ua rau ib tug series ntawm complex acceleration mechanisms nyob rau hauv ib tug tshwj xeeb yas ntawv ci. Qhov no zoo heev txhim kho proton acceleration zog ntawm lub laser hu ua DRACO.
Cov txiaj ntsig tau pom tias yav dhau los cov ntaub ntawv ntawm proton acceleration zog ntawm DRACO laser yog hais txog 80 mega-electron volts, thiab tam sim no nws muaj peev xwm ncav cuag 150 mega-electron volts, yuav luag ob zaug tus thawj. Tsis tas li ntawd, cov kab hluav taws xob nrawm nrawm nthuav tawm cov yam ntxwv zoo ntawm lub zog siab thiab kev txav tsis sib xws.
Pab neeg tshawb fawb ntseeg tias qhov kev ua tiav no yuav tsum ua kom cov laser plasma accelerators me me los ua lub luag haujlwm tseem ceeb hauv kev kho mob, tshwj xeeb tshaj yog hauv cov kev kho mob qog nqaij hlav. Tam sim no, cov kws kho mob feem ntau tso siab rau cov tshuaj kho mob accelerators loj los ua cov kev tshawb fawb no. Cov accelerators loj uas twb muaj lawm siv hluav taws xob ntau, thaum laser plasma accelerators yuav siv nyiaj ntau dua. Laser flashes tseem tuaj yeem siv los tsim cov neutron pulses luv thiab khaus, uas yog qhov tseem ceeb rau kev tshawb fawb thiab thev naus laus zis thiab kev tshuaj xyuas cov khoom siv.
Ziegler tau hais tias lawv vam tias yuav koom tes nrog lwm lub chaw soj nstuam los tswj kev nrawm dua kom meej thiab ua tiav proton acceleration zog ntawm ntau dua 200 megaelectronvolts yav tom ntej.
