間接驅(qū)動(dòng)ICF輻射驅(qū)動(dòng)對(duì)稱性研究.pdf

1、電子科技大學(xué)碩士學(xué)位論文間接驅(qū)動(dòng)ICF輻射驅(qū)動(dòng)對(duì)稱性研究姓名：周近宇申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：等離子體物理指導(dǎo)教師：蒙林20090501ABSTRACTABSTRACTAgoodradiation—drivensymmetryisimportantforindirectlydriveninertialconfinementfusionOCF)laboratoryItachieveignitionandhighgainwhichisesse

2、ntialforpreciseregulationofthesymmetryoftheexperimentalenvironmentThemainresearchcontentofthisarticleareasfollows1AviewfactormethodforcalculatingradiationdrivefromhohlraumwallstothecapsuleinindirectICFispresented，withwhi

3、chasymmetryconditionsforimplosionexperimentsonSG—IIIprototypewereevaluatedWecalculatedXrayintensitvdistributiononthehohlraumwallsandradiationdriveonthecapsulelocatedinthecenterofcylindricalgoldtargetThedrivennontmiformit

4、yvaryingwiththelaserspotlocusandthehohlraumgeometrywerealsogivenTheresultsshowedthatthismetllodhelpstoassessthemainparametersofindirectICFtargetsandprovidesusefulinformationforexperimentdesign2。Measurementofradiationfiel

5、dnearaimplosionpelletMbandXrayisaimportantareainICFresearchOnthe‘‘SGII”laserfacility，MbandX—rayfromAuplasmawasmeasuredinhalfhohlraumradiationfromtheendTheexperimentsetupandtypicalresultweregivenAndwe’vealsousedViewfactor

6、programtosimulatethisexperimentTheresultsindicatethatangulardistributionofMbandXrayfromtheendofhalfhohlraumdoesn’tassumelinearrelationshipwiththecosineoferadiatingangleTheresultsareusefulfortheresearchofimplosionexperime

7、ntandtargetdesign3Inordertomeettherequirementofsymmetrytuningandmeasurementinimplosionexperiment，aimageprocessingmethodhasbeenadoptedThismethodiSbasedonLegendrefit，withthetheoryofradiationdrivesymmetry，whichhelptheanalys

8、isofcompressedcoreimageThroughaseriesofdataanalysis，adetailedcomparisonoftwomethodshasbeenprocessedTheresultshowedtheen0rofmenewmethodissmallerthanthatofthecurrentappliedimageprocessingmethod，andthenewmethodgetsmorehighm