回旋管的等离子体粒子模拟程序与其应用

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1、-------ABSTRACTABSTRACTTheresearchanddevelopmentofgyrotrons,isanimportantbreakthroughoflastcenturytheendof50'shereaftermicrowaveelectronicsinside.TheplasmaphysicscommunityhasalreadytakenadvantageoftherecentadvancesofgyrotronsintheareasofRFplasmaproductio

2、n,heating,non-inductivecurrentdrive,plasmastabilizationandactiveplasmadiagnosticsformagneticconfinementthermonuclearfusionresearch,suchaslowerhybridcurrentdrive(LHCD),electroncyclotronresonanceheating(ECRH),electroncyclotroncurrentdrive(ECCD),collectiveT

3、homsonscattering(CTS)andheat-wavepropagationexperiments.Otherimportantapplicationsofgyrotronsareelectroncyclotronresonance(ECR)dischargesforthegenerationofmulti-chargedionsandsoftX-rays,aswellasindustrialmaterialsprocessingandplasmachemistry.Submillimetr

4、ewavegyrotronsareemployedinhighfrequency,broadbandelectronparamagneticresonance(EPR)spectroscopy.Gyrotronisanimportanthigh-powermicrowaveresourcethathasbeenappliedinmanyfieldssuchasradar,communicationandhigh-powermicrowaveweapon.Comparedwiththetraditiona

5、lGyrotronECRMcangreatlyreducetherequestedmagneticfieldontheconditionofthesamefrequency.Andwhatismore,ECRMenjoysthehigherfrequencyincontrastofthefreeelectronlaser.DuetothefactthatECRMisfeaturedbyhighproficiencyandlaserfrequency,ECRMcangetseveralhundredsme

6、gawattpowerandproficiencyabove20%.ThemethodofPICsimulationisveryimportantinthecomputationalphysics.Ithasgreatadvantageintheresearchonthelinearandnonlinearphysicalmechanism. Thesuccessfulapplicationusedtoexploretheprocessoftheinteractionbetweenfield andel

7、ectronshasprovedtobeexcellent.InthethesisIdevelopaprogramthatfocuses ontheTE’smode.Suchprogramcanbeusedtostudythefielddistributionand resonantfrequencywhentherearenoelectrons.Atthesametimeseveralkindsof Gyrotronsareselectedasexperimentalmodestoconfirmthe

8、validityoftheprogram.Forexample,GyrotronofTEand95GHzandGyrotronamplifierofTEand402262III-----------ABSTRACTGHz.IusetheprogramtosimulatetheinstabilitiesofTE’smode.Igetsomeresultssuchasfielddistributionandvelocitiesbunchingt