用于毫米波輻射非致命生物效應(yīng)的94GHz回旋管設(shè)計(jì)與實(shí)驗(yàn)(英文)
發(fā)布時(shí)間:2021-04-17 19:56
設(shè)計(jì)和測(cè)試了內(nèi)嵌準(zhǔn)光系統(tǒng)的94 GH z回旋管,該系統(tǒng)主要用于研究毫米波輻射的非致命生物效應(yīng)。為了減少大功率高頻下的回旋管壁面加熱問題,選擇TE+6,2模式作為工作模式。對(duì)于高階模式,存在更多相鄰模式,因此模式競(jìng)爭(zhēng)會(huì)影響實(shí)驗(yàn)的穩(wěn)定性和有效的可操作性。漸變腔已被設(shè)計(jì)為抑制單個(gè)腔中的模式競(jìng)爭(zhēng)。另外,具有低衍射準(zhǔn)光模式變換器的功率轉(zhuǎn)換效率為98.54%。實(shí)驗(yàn)結(jié)果表明,回旋管輸出功率為50.9 kW,效率為34.3%。對(duì)于非致死的生物效應(yīng)研究,整體設(shè)計(jì)方案達(dá)到了預(yù)期的效果。
【文章來源】:紅外與毫米波學(xué)報(bào). 2020,39(02)北大核心EISCICSCD
【文章頁(yè)數(shù)】:6 頁(yè)
【圖文】:
圖1腔體結(jié)構(gòu)與電場(chǎng)分布的關(guān)系圖??
?wall?of?the?wave???guide.?The?eigen?modes?in?a?circular?waveguide?will?cou-??0??2.8?3?3.2?3.4?3.6?3.8?4??Magnetic?field^S/T??Fig.?2?The?normalized?beam-wave?coupling?coefficient?of?the??dominant?and?competitive?modes?varies?with?beam?radius??圖2主模和競(jìng)爭(zhēng)模式的歸一化注波親合系數(shù)隨波束半徑變化??Fig.?3?The?starting?current?of?the?operating?mode?and?the?mam??competitive?mode?varies?with?the?external?magnetic?field,?where??the?beam?voltage?of?30?kV,?beam?radius?of?3.?3?mm?and?trans-??verse-to-axial?velocity?ratio?of?1.?3?were?selected??圖3工作模式和主要競(jìng)爭(zhēng)模式的起振電流隨外磁場(chǎng)變化,其??中選取了?30?kV的電子注電壓、3.?3?mm的電子注半徑和1.?3的??橫軸速比??GHz?and?100?GHz?and?the?beam-wave?coupling?of?rela???tive?to?the?main?mode?is?greater?than?70%?were?selected.??The?startup?simulation?is?
0?400?800?1200?1600?2000??time/ns??Fig.?4?The?startup?of?multi-mode?beam-wave?interaction,?where??the?beam?voltage?of?40?kV,?beam?current?of?4A,?transverse-to-??axial?velocity?ratio?of?1.?3,?beam?radius?of?3.?3?mm??圖4多模式注波相互作用的起振,其中電子注電壓為40kV,??電子注電流為4?A,橫軸速度比為1.?3,電子注半徑為3.?3?mm??to?be?2.?7%?and?4.?0%.?The?trajectories?and?structure?are??shown?in?Fig.?5.?The?specific?parameters?of?optimized??beam?are?presented?in?Table?1.??Fig.?5?The?trajectory?and?structure?of?the?designed?MIG??圖5設(shè)計(jì)的磁控注入槍的軌跡和結(jié)構(gòu)??Table?1?Optimized?beam?parameters?and?MIG?geometry??表1優(yōu)化的電子注參數(shù)和磁控注入槍的幾何結(jié)構(gòu)?1??Parameters??Values??Beam?voltage??40?kV??beam?current??4?A??average?radius??3.?3?mm??Beam?pitch?ratio??1.3??(Cavity?Magnetic?field??3.540?T??
本文編號(hào):3144050
【文章來源】:紅外與毫米波學(xué)報(bào). 2020,39(02)北大核心EISCICSCD
【文章頁(yè)數(shù)】:6 頁(yè)
【圖文】:
圖1腔體結(jié)構(gòu)與電場(chǎng)分布的關(guān)系圖??
?wall?of?the?wave???guide.?The?eigen?modes?in?a?circular?waveguide?will?cou-??0??2.8?3?3.2?3.4?3.6?3.8?4??Magnetic?field^S/T??Fig.?2?The?normalized?beam-wave?coupling?coefficient?of?the??dominant?and?competitive?modes?varies?with?beam?radius??圖2主模和競(jìng)爭(zhēng)模式的歸一化注波親合系數(shù)隨波束半徑變化??Fig.?3?The?starting?current?of?the?operating?mode?and?the?mam??competitive?mode?varies?with?the?external?magnetic?field,?where??the?beam?voltage?of?30?kV,?beam?radius?of?3.?3?mm?and?trans-??verse-to-axial?velocity?ratio?of?1.?3?were?selected??圖3工作模式和主要競(jìng)爭(zhēng)模式的起振電流隨外磁場(chǎng)變化,其??中選取了?30?kV的電子注電壓、3.?3?mm的電子注半徑和1.?3的??橫軸速比??GHz?and?100?GHz?and?the?beam-wave?coupling?of?rela???tive?to?the?main?mode?is?greater?than?70%?were?selected.??The?startup?simulation?is?
0?400?800?1200?1600?2000??time/ns??Fig.?4?The?startup?of?multi-mode?beam-wave?interaction,?where??the?beam?voltage?of?40?kV,?beam?current?of?4A,?transverse-to-??axial?velocity?ratio?of?1.?3,?beam?radius?of?3.?3?mm??圖4多模式注波相互作用的起振,其中電子注電壓為40kV,??電子注電流為4?A,橫軸速度比為1.?3,電子注半徑為3.?3?mm??to?be?2.?7%?and?4.?0%.?The?trajectories?and?structure?are??shown?in?Fig.?5.?The?specific?parameters?of?optimized??beam?are?presented?in?Table?1.??Fig.?5?The?trajectory?and?structure?of?the?designed?MIG??圖5設(shè)計(jì)的磁控注入槍的軌跡和結(jié)構(gòu)??Table?1?Optimized?beam?parameters?and?MIG?geometry??表1優(yōu)化的電子注參數(shù)和磁控注入槍的幾何結(jié)構(gòu)?1??Parameters??Values??Beam?voltage??40?kV??beam?current??4?A??average?radius??3.?3?mm??Beam?pitch?ratio??1.3??(Cavity?Magnetic?field??3.540?T??
本文編號(hào):3144050
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