ݴ͏͜ͱ͕͋Γ·͢ɻ͜Ε͸ɺಘͯͯ͠༁΋෼͔Βͣϊ Πζͷॴҝʹͨ͠දݱͷҰྫͰ͢ɻ͔֬ʹݱ৔ʹ͓͚Δ ଌఆͰ͸ɺ͜ͷΑ͏ͳ͜ͱ͸͠͹͠͹ੜ͡·͕͢ɺͦΕ Ͱ͸ϊΠζݯ͸Կ͔ͱ໰ΘΕΔͱʹΘ͔ʹ͸౴͑ΒΕͳ ͍͜ͱ͕ଟ͍͜ͱ΋ࣄ࣮Ͱ͢ɻීஈ͸ɺϊΠζੜ੒ͷϝ ΧχζϜΛಥ͖٧Ίͯߟ࡯͢Δ͜ͱ͸༨Γ͋Γ·ͤΜɻ զʑ͕೔ৗతʹݟΔϊΠζ͸ɺ৴߸఻ૹ΍ిྗ఻ૹʹ ؔΘΔ͜ͱ͕ଟ͍Ͱ͕͢ɺࣗવքʹ͸͞Βʹ޿ٛͷϊΠ ζ͕ଘࡏ͠·͢ɻΞΠϯγϡλΠϯ͕ਫʹු͔ΜͩՖค ͷෆنଇͳӡಈ(ϒϥ΢ϯӡಈ)͔Βݪࢠͷଘࡏ

৴߸఻ૹͱϊΠζ཈੍ٕज़ͷجૅ

1. ͸͡Ίʹ

ຊ೥౓ͷओςʔϚ͸ʮϏʔϜ਍அͷجૅʯͰ͕͢ɺຊ ߨٛ͸ओςʔϚͷதͰ͸झ޲Λ΍΍ҟʹͨ͠ʮ৴߸఻ૹ ͱϊΠζ཈੍ٕज़ͷجૅʯͱ͍͏ςʔϚͰߨٛΛ͍ͨ͠

ͱࢥ͍·͢ɻϏʔϜ਍அʹ͸༷ʑͳํ๏͕͋Γ·͕͢ɺ ຊߨٛͰ͸ͲͷΑ͏ͳϏʔϜ਍அͰ͋Ζ͏ͱڞ௨͢Δϊ Πζ཈੍ٕज़ͷجૅʹ͍ͭͯ·ͱΊ͍ͨͱࢥ͍·͢ɻච

ऀ͕௕೥ʹ౉Γ೰·͞Εଓ͚ɺ࣮ࡍʹϏʔϜ਍அͷݚڀ Ͱܦݧ͜͠ͱʹ͍ͭͯͰ͖Δ͚ͩΘ͔Γ΍͘͢ղઆͨ͠

͍ͱࢥ͍·͢ɻ

ϊΠζ^*1ͱ͸ɺ೔ຊޠͰ͸ࡶԻ΍༳Β͗ͱ΋ݺ͹Εɺ Ұൠʹ໽հऀѻ͍͞ΕΔ͜ͱ͕ଟ͍ͱࢥ͍·͢ɻզʑ͕

ϏʔϜ਍அͷࡍʹ৴߸Λ֬ೝ͠Α͏ͱ͢Δࡍɺ“ϊΠζ͕

େ͖ͯ͘৴߸Λ؍ଌ͢Δ͜ͱ͕Ͱ͖ͳ͍”ͱΛ͠͹͠͹

ݴ͏͜ͱ͕͋Γ·͢ɻ͜Ε͸ɺಘͯͯ͠༁΋෼͔Βͣϊ Πζͷॴҝʹͨ͠දݱͷҰྫͰ͢ɻ͔֬ʹݱ৔ʹ͓͚Δ ଌఆͰ͸ɺ͜ͷΑ͏ͳ͜ͱ͸͠͹͠͹ੜ͡·͕͢ɺͦΕ Ͱ͸ϊΠζݯ͸Կ͔ͱ໰ΘΕΔͱʹΘ͔ʹ͸౴͑ΒΕͳ

͍͜ͱ͕ଟ͍͜ͱ΋ࣄ࣮Ͱ͢ɻීஈ͸ɺϊΠζੜ੒ͷϝ ΧχζϜΛಥ͖٧Ίͯߟ࡯͢Δ͜ͱ͸༨Γ͋Γ·ͤΜɻ

զʑ͕೔ৗతʹݟΔϊΠζ͸ɺ৴߸఻ૹ΍ిྗ఻ૹʹ

ؔΘΔ͜ͱ͕ଟ͍Ͱ͕͢ɺࣗવքʹ͸͞Βʹ޿ٛͷϊΠ ζ͕ଘࡏ͠·͢ɻΞΠϯγϡλΠϯ͕ਫʹු͔ΜͩՖค ͷෆنଇͳӡಈ(ϒϥ΢ϯӡಈ)͔ΒݪࢠͷଘࡏΛ༧ݴ

ͨ͠࿩[1]͸༗໊Ͱ͢ɻϒϥ΢ϯӡಈͦͷ΋ͷ͸ϊΠζ (༳Β͗)ͱಉ౳ͷੑ࣭Λ࣋ͭ͜ͱ͕஌ΒΕ͍ͯ·͢ɻଞ ʹ΋ɺ஍໘มಈͷඇपظతͳඍখৼಈͷۭ࣌ൃలɺ஍਒

ڧ౓ʹର͢Δ஍਒ͷൃੜස౓ɺఱମͷ์ͭ์ࣹڧ౓ͷ࣌

ؒมԽɺ୯ࡉ๔಺ͷඍཻࢠͷӡಈɺ஍ٿද໘ͷԹ౓มಈɺ

஍࣓ؾͷ࣌ؒมԽͳͲ਺ଟ͘ͷ๛෋ͳࣄྫ͕஌ΒΕ͍ͯ

·͢[2, 3]ɻ͜ͷΑ͏ͳࣄྫ͸ɺप೾਺ྖҬͰଌఆ͢Δ

ͱ΄΅1/f (f: प೾਺)Ͱݮਰ͢ΔͷͰ1/f ϊΠζͱݺ

͹Ε·͢ɻ

ϒϥ΢ϯӡಈͷྫ͔Β΋Θ͔ΔΑ͏ʹɺϊΠζͷഎޙ ʹ͸ਂ෵ͳ෺ཧ͕ଘࡏ͢Δ͜ͱ͕ଟ͘ڵຯਂ͍΋ͷ͕͋

Γ·͢ɻಛʹɺ஍໘มಈͷඇपظతͳඍখৼಈ͸ɺຊདྷ

͸஍ٿ෺ཧֶͷ෼໺Ͱൃల͍ͯ͠ΔݚڀςʔϚͰ͕͢ɺ

େܕՃ଎ثͷΞϥΠϝϯτͱؔ܎͕ਂ͘ɺ࠷ۙͰ͸Ճ଎

ثݐઃ৔ॴͷબఆ΍ݐઃޙͷ҆ఆͳӡసʹ޲͚ͯॏཁͳ ݚڀςʔϚͷҰͭʹͳ͍ͬͯ·͢[4, 5]ɻ

*1ຊߨٛͰ͸ɺϊΠζɺࡶԻɺ༳Β͗ʹର۠͠ผͳ͘ಉٛޠͱ͠

ͯ༻͍͍ͯ·͢.

஍໘มಈͷΑ͏ͳඍখৼಈΛݚڀ͢Δʹ͸ɺ஍ٿ಺෦ ͷߏ଄ͱμΠφϛΫεͷৄࡉΛ஌Δඞཁ͕͋Γ·͕͢ɺ

ৄࡉ͸೉͘͠ݸผͷ෺ཧաఔΛ໰͏͜ͱ͸Ͱ͖·ͤΜɻ

͜ͷΑ͏ͳݚڀͰ͸ɺݹయతͳ֬཰աఔͱͯ͠ͷϒϥ΢

ϯӡಈͱಉ༷ʹղੳ͞Ε·͢[6, 7, 8]ɻՃ଎ث෼໺ʹ͓

͍ͯ΋஍໘มಈͷඇपظతͳඍখৼಈ͕ɺ֬཰աఔͱ͠

ͯಋ͔ΕΔAT Lͷ๏ଇ[9, 10]ʹै͍ۭ࣌ൃల͢Δ͜

ͱ͕Α͏΍֬͘ೝ͞ΕΔΑ͏ʹͳΓɺ࣍ੈ୅ͷେܕՃ଎

ثͷݐઃʹ͸ͳͯ͘͸ͳΒͳ͍ख๏ͷҰͭʹͳ͍ͬͯ

·͢ɻ

͜ͷΑ͏ͳݚڀΛ௨ͯ͠ɺͲͷΑ͏ʹ֦େॖখͯ͠΋

ͦͷܗΛݩͱൺֱ͢Δͱ·ΔͰ૬ࣅܗͷΑ͏ʹෆมͰ͋

Δͱ͍͏৽ֶ͍͠໰෼໺ɺϑϥΫλϧ͕Ϛϯσϧϒϩʹ ΑΓ։୓͞Ε·ͨ͠[11]ɻචऀ΋KEKిࢠཅిࢠೖࣹ

ث౩ʹ͓͍ͯ஍໘มಈͷඇपظతͳඍখৼಈΛ໿̍೥ʹ

౉Γ؍ଌͨ͠ͱ͜ΖɺͦͷσʔλͷதʹݟࣄʹϑϥΫλ ϧͷಛ௃͕ݟग़͞Εͨ͜ͱʹڻ͖·ͨ͠[12]ɻ͜ͷΑ͏

ʹϊΠζͷഎޙʹ͸ԿΒ͔ͷ෺ཧաఔ͕ଘࡏ͍ͯ͠Δͷ Ͱɺ೔ࠒ͔Β஫ҙਂ͘؍࡯Λ͍ͯ͠Ε͹શ͘৽͍͠෺ཧ ݱ৅ʹૺ۰͢Δ͔΋͠Ε·ͤΜɻ

զʑ͕ීஈܦݧ͢Δͷ͸ɺిࢠճ࿏΍ిؾճ࿏ʹग़ݱ

͢ΔڱٛͷϊΠζͷ͜ͱͰ͢ɻैͬͯඍখ৴߸Λѻ͏৔

߹ɺ೗ԿʹϊΠζΛ཈੍͢Δ͔͕؊ཁʹͳΓ·͢ɻ਺ଟ

͘ͷछྨͷϊΠζ͕ଘࡏ͢Δ͜ͱ͕஌ΒΕ͍ͯ·͢ɻ֤

ϊΠζͷഎޙʹ͸ҟͳΔ෺ཧաఔͷଘࡏ͕Α͘஌ΒΕͯ

͓Γɺଟ͘ͷڭՊॻ[13, 14]Ͱղઆ͞Ε͍ͯ·͢ɻྫ͑

͹೤ࡶԻ[15, 16]͸ɺ఍߅ମ಺ͷࣗ༝ిࢠͷෆنଇͳ೤

ৼಈʹΑͬͯੜ͡ΔࡶԻͱͯ͠஌ΒΕ͓ͯΓɺճ࿏ઃܭ ʹ͸͔ܽͤ·ͤΜɻ

γϣοτࡶԻ[17]͸ɺిؾճ࿏ʹ͓͍ͯྲྀΕΔిࢠ ͷ਺͕ۃ౓ʹগͳ͍৔߹ɺిࢠ਺ͷ౷ܭతมಈ͕େ͖͘

ͳΔͨΊʹൃੜ͢ΔࡶԻͷ͜ͱͰ͢ɻେిྲྀΛѻ͏৔߹

͸༨Γؔ܎͠·ͤΜ͕ɺۃ୺ͳඍখిྲྀΛѻ͏৔߹ɺి

ࢠ਺ͷ౷ܭతมಈ͸༳Β͗ͱͯ͠ධՁ͢Δ͜ͱ͕Ͱ͖

·͢ɻ

ϑϦοΧʔࡶԻ[18, 19]͸ճ࿏ʹ෇ਵͯ͠ੜ੒͞ΕΔ ಛ༗ͷࡶԻͷ͜ͱͰɺճ࿏ૉࢠͷಛੑʹىҼ͢ΔͱݴΘ Ε͍ͯ·͢ɻ͜ͷࡶԻ͸1/f ࡶԻͷಛੑΛ͍࣋ͬͯ·

͢ɻ͜ΕΒͷྫ͸ɺճ࿏಺෦Ͱੜ੒͞ΕΔຊདྷతͳࡶԻ [20]ͷ͜ͱͰ͢ɻ͜͜Ͱ͸ز͔ͭͷࡶԻΛ঺հ͠·ͨ͠

͕ɺ͜ΕΒҎ֎ʹ΋෺ཧաఔͷҟͳΔࡶԻ͕ଟ਺஌ΒΕ

͍ͯ·͢ɻ෺ཧաఔ͸Α͘ཧղ͞Ε͍ͯ·͢ͷͰɺ͜ͷ ࡍੋඇݪ࿦จΛಡΜͰΈΔ͜ͱΛ͓קΊ͠·͢ɻ

ۭؒΛ఻೻͢Δ֎དྷϊΠζ͸ɺؒ઀తʹओ৴߸Λअຐ

͢ΔࡶԻͱͳΔͷͰۃྗ཈੍͢΂͖ର৅ͱͳΓ·͢ɻ཈

੍ٕज़ͱͯ͠͸ɺಉ࣠έʔϒϧγʔϧυͷೋॏԽ΍ಉ࣠

νϣʔΫΛ༻͍ΔͳͲɺ͜ΕΒͷϊΠζ཈੍ޮՌ͸਺ଟ

͘ͷจݙ[21, 22, 23]Ͱطʹղੳ͞Ε͍ͯ·͢ɻྫ͑͹ɺ ಉ࣠έʔϒϧͷೋॏγʔϧυʹ͍ͭͯ͸ɺγʔϧυ໢ઢ ͷં໨ߏ଄ɺγʔϧυް͞ɺ͞Βʹ֎෦ಋମΛߏ੒͢Δ ϫΠϠʔࡐྉͷిؾ఻ಋ཰ͱදൽਂ͞Λߟྀͨ͠γʔϧ υޮՌ͕ɺप೾਺ʹର͢Δ఻ୡΠϯϐʔμϯεͱ͍͏ܗ Ͱղੳ͞Ε͍ͯ·͢ɻೋॏγʔϧυͷޮՌ͸ɺൺֱత؆

୯ʹܭࢉ͢Δ͜ͱ͕Ͱ͖·͢ɻೋॏγʔϧυ͕௨ৗͷҰ

ॏγʔϧυʹൺ΂ͲΕ͘Β͍ͷޮՌΛൃش͢Δͷ͔Λੋ

ඇ֤ࣗͰܭࢉ͞ΕΔ͜ͱΛ͓קΊ͠·͢ɻ

ຊߨٛͰѻ͏ςʔϚ͸ɺ্هʹड़΂ͨϊΠζͱ͸ੑ࣭

Λҟʹ͠·͢ɻճ࿏಺෦Ͱੜ੒͞ΕΔຊདྷతͳࡶԻ΍֎

དྷϊΠζͱ͸෺ཧաఔ͕ҟͳΓɺෳ਺ͷ৴߸ઢͰ৴߸Λ

఻ૹ͢Δ৔߹ʹग़ݱ͢ΔϊΠζΛѻ͍·͢ɻ͜ͷϊΠζ ʹ͍ͭͯ͸ɺܦݧతʹ͸Α͘஌ΒΕ͍ͯ·͕ͨ͠[24]ɻ

͔͠͠ɺଟॏઢ࿏͔ΒͳΔ఻ૹճ࿏ʹର͢ΔϊΠζੜ੒

ͷཧ࿦͕ݫີʹߏங͞Ε[25]ɺཧ࿦ʹج͖࣮ͮࡍͷՃ଎

ثʹॳΊͯԠ༻͞Εͨͷ͸͘͝࠷ۙͷ͜ͱͰ͢[26]ɻ චऀ͸ɺKEKʹೖॴ͔ͯ͠Β௕೥ϏʔϜ਍அʹैࣄ

ͯ͠དྷ·͕ͨ͠ɺ࣮ࡍʹܦݧͨ͠ϊΠζͷ໰୊Λ௕೥ղ

ܾ͢Δ͜ͱ͕Ͱ͖·ͤΜͰͨ͠ɻ͋Δ࣌KEKͰɺ͜ͷ ϊΠζཧ࿦ͷߨٛΛௌߨ͢Δػձ͕͋Γ[27]ɺ͜ͷཧ࿦

ΛԠ༻͢Ε͹೰·͍͠ϊΠζ໰୊ΛղܾͰ͖ΔͷͰ͸ͳ

͍͔ͱ௚ײతʹࢥ͍·ͨ͠ɻ৽ཧ࿦ͷԠ༻ྫ͸ɺి࣓ੴ

ిݯ͔Βి࣓ੴʹڙڅ͞ΕΔిྗ഑৴ʹؔ͢Δ΋ͷͰɺ ϊΠζରࡦޙͷ࣓৔ͷϦοϓϧϊΠζ͸େ͖͘௿ݮ͞Ε

ͨͱใࠂ͞Ε·ͨ͠ɻ

ϏʔϜ਍அͷΑ͏ͳ৴߸఻ૹͷ৔߹ɺಉ࣠έʔϒϧ͕

࢖ΘΕΔ͜ͱ͕ଟ͍ͷͰ͕͢ɺಉ࣠ߏ଄Λ࣋ͬͨέʔϒ ϧʹ͓͚Δ৴߸఻ૹͰ͸ɺͲͷΑ͏ʹ৽ཧ࿦ΛԠ༻͢Ε

͹Α͍ͷ͔͕౰ॳ͸Α͘Θ͔Γ·ͤΜͰͨ͠ɻͦͷޙɺ චऀͳΓʹݕ౼͠ɺΑ͏΍͘Ұͭͷ݁࿦ʹୡ͠·ͨ͠ͷ Ͱɺ͜ͷݕ౼಺༰ΛຊηϛφʔͷςΩετͱͯ͠·ͱΊ Δ͜ͱʹ͠·ͨ͠ɻ

ϊΠζੜ੒ͱͦͷ཈੍ٕज़ʹؔ͢ΔڭՊॻ͸਺ଟ͘ଘ ࡏ͠·͕͢ɺຊߨٛͷ಺༰͸ɺ͜ͷΑ͏ͳڭՊॻʹ͸ه ࡌ͞Ε͍ͯͳ͍ɺචऀ͕ݱ৔Ͱ࣮ࡍʹ؍ଌͨ͠՝୊ʹج

͍͍ͮͯ·͢ɻैͬͯຊ಺༰͸ɺಛఆͷϏʔϜ਍அʹݶ ఆ͢Δ΋ͷͰ͸ͳ͘ɺՃ଎ثٕज़શൠʹԠ༻ՄೳͰ͢ɻ ຊߨٛͰ͸ɺϏʔϜ਍அͷྫͱͯ͠௕ύϧεϏʔϜͷి

ྲྀܭଌΛऔΓ্͛Δ͜ͱʹ͠·͢ɻ

ిࢠઢܗՃ଎ثʹ͓͚Δ௕ύϧεϏʔϜͷిྲྀܭଌ (ύϧε෯≳1µs)Ͱ͸ɺϑΣϥΠτίΞʔʹίΠϧΛଟ

਺ճר͍ͨిྲྀϞχλʔ[28]͕༻͍ΒΕΔ͜ͱ͕ଟ͍ɻ

͜ͷϞχλʔ͸ɺίΞʔϞχλʔ(CM)ɺτϩΠμϧϞ χλʔɺΧϨϯττϥϯεϑΥʔϚʔ౳ͱݺ͹Εɺઢܗ Ճ଎ثͰ͸࠷΋جຊతͳϞχλʔͷҰͭͱͯ͠޿͘ར༻

͞Ε͍ͯ·͢ɻ

චऀͷॴଐ͢ΔKEKిࢠཅిࢠೖࣹث(ҎԼೖࣹث) Ͱ͸ɺ୯όϯνͷిࢠ·ཅిࢠϏʔϜΛੜ੒͢ΔΑ͏ʹ ͳΓCMͷར༻͸ແ͘ͳͬͯ͠·͍·͕ͨ͠ɺKEK෺

࣭ߏ଄Պֶݚڀॴͷ௿଎ཅిࢠࢪઃͰ͸খܕͷిࢠઢ ܗՃ଎ثΛར༻ͯ͠௿଎ཅిࢠΛੜ੒͍ͯ͠·͢ɻ௿଎

ཅిࢠࢪઃͰ͸ిࢠΛඪతʹরࣹ͠௿଎ཅిࢠ(Τωϧ ΪʔՄม/࠷େ35keV)Λੜ੒͠ɺݻମද໘෺ੑ΍ݪࢠ෼

ࢠ෺ཧֶͷݚڀ͕ਫ਼ྗతʹߦΘΕ͍ͯ·͢[29]ɻຊՃ଎

ثͰ͸CMΛར༻ͯ͠ඇഁյͰϏʔϜిྲྀΛৗ࣌ܭଌ

͍ͯ͠·͢ɻ

͜ͷՃ଎ثͰ͸طଘͷCMΛ2୆ͱ৽نʹ੡࡞ͨ͠

ಉ༷ͳϞχλʔ1୆ɺ߹ܭ3୆Λར༻ͯ͠ϏʔϜిྲྀΛ ܭଌ͍ͯ͠·͢ɻ৽نͷ΋ͷ͸طଘͷ΋ͷΛࢀߟʹͯ͠

ಉ༷ʹ੡࡞ͨͭ͠΋ΓͰ͕ͨ͠ɺϊΠζ཈੍ͱ͍͏؍఺

͔Β͢ΔͱطଘϞχλʔ͸໰୊ͳ͘ར༻Ͱ͖͍ͯͨʹ΋

ؔΘΒͣɺ৽نϞχλʔ͸ϊΠζͷӨڹΛେ͖͘ड͚Δ

͜ͱʹͳΓ·ͨ͠ɻϊΠζ௿ݮٕज़ͷҰͭͱͯ͠༗ޮͳ νϣʔΫίΠϧΛ༻͍ͨϊΠζରࡦΛԿ౓΋ࢼΈ·ͨ͠

͕͜ͱ͝ͱࣦ͘ഊʹؼ͠·ͨ͠^*2ɻ͜ͷΑ͏ͳܦݧ͕͜

ͷ໰୊Λߟ͑Δग़ൃ఺ͱͳΓɺ͜͜ͰϊΠζੜ੒ͷݪཧ ʹཱͪ໭ͬͯߟ͑ΔඞཁੑʹഭΒΕ·ͨ͠ɻ

ઢܗՃ଎ثͰ͸ϊΠζ͸ੲ͔Β໽հͳ໰୊Λఏڙͯ͠

͍·͢ɻಛʹߴిྗΫϥΠετϩϯ΍ߴ଎ΩοΧʔۙ͘

ͷϏʔϜ਍அͰ͸ɺϊΠζΛආ͚Δ͜ͱ͕೉༷͘͠ʑͳ

޻෉ʹΑΓϊΠζ཈੍͕ࢼΈΒΕ͖ͯ·ͨ͠ɻ

ຊηϛφʔͰ͸ɺCMͷ఻ૹઢ࿏ͷجຊʹཱͪ໭Γɺ

৴߸఻ૹͱϊΠζੜ੒ͷݪཧΛݕ౼͢Δ͜ͱʹ͠·͢ɻ

ৄࡉʹղੳͯ͠ߦ͘ͱɺطଘϞχλʔͱ৽نϞχλʔͰ

͸ɺάϥϯυ(Gnd.)ͷҐஔͱऔΓํʹຊ࣭తͳҧ͍͕

͋Γɺ͜ͷΘ͔ͣͳҧ͍͕৴߸఻ૹʹେ͖ͳӨڹΛ༩͑ɺ

࠷ऴతʹ৴߸࿪Έ΍ϊΠζੜ੒ͷݪҼʹͳ͍ͬͯΔ͜ͱ

͕Θ͔Γ·ͨ͠ɻ

఻ૹճ࿏ʹ͓͍ͯ͸ɺGnd.ͷऔΓํ͕؊ཁͰɺ৴߸

఻ૹͱϊΠζੜ੒ʹେ͖ؔ͘ΘΔͱ͍͏͜ͱΛ͓࿩ͨ͠

͍ͱࢥ͍·͢ɻ

*2νϣʔΫίΠϧͱ͸ɺϦϯάঢ়ͷϑΣϥΠτίΞͳͲͷ࣓ੑମ ʹಉ࣠έʔϒϧΛϦϯάʹԊͬͯෳ਺ճר͖͚ͭͨ΋ͷΛݴ͍

·͢. Ճ଎ثࢪઃͰ͸ɺνϣʔΫίΠϧ͸ϊΠζ཈੍ٕज़ͷҰ

ͭͱͯ͠͠͹͠͹༻͍ΒΕ·͢. ࢢൢͷϑΣϥΠτίΞ͸प೾

਺ಛੑ͸༨ΓΑ͋͘Γ·ͤΜ(f≲10 kHz).प೾਺ಛੑͷൺֱ

తྑ͍(f≲100 kHz)ز͔ͭͷϑΣϥΠτίΞΛ༻͍ͯࢼݧ͠

·͕ͨ͠ɺϊΠζ೾ܗʹมԽ͸શ͘ݟΒΕ·ͤΜͰͨ͠.

੍ٕज़ͱͯ͠͸ɺಉ࣠έʔϒϧγʔϧυͷೋॏԽ΍ಉ࣠

νϣʔΫΛ༻͍ΔͳͲɺ͜ΕΒͷϊΠζ཈੍ޮՌ͸਺ଟ

͘ͷจݙ[21, 22, 23]Ͱطʹղੳ͞Ε͍ͯ·͢ɻྫ͑͹ɺ ಉ࣠έʔϒϧͷೋॏγʔϧυʹ͍ͭͯ͸ɺγʔϧυ໢ઢ ͷં໨ߏ଄ɺγʔϧυް͞ɺ͞Βʹ֎෦ಋମΛߏ੒͢Δ ϫΠϠʔࡐྉͷిؾ఻ಋ཰ͱදൽਂ͞Λߟྀͨ͠γʔϧ υޮՌ͕ɺप೾਺ʹର͢Δ఻ୡΠϯϐʔμϯεͱ͍͏ܗ Ͱղੳ͞Ε͍ͯ·͢ɻೋॏγʔϧυͷޮՌ͸ɺൺֱత؆

୯ʹܭࢉ͢Δ͜ͱ͕Ͱ͖·͢ɻೋॏγʔϧυ͕௨ৗͷҰ

ॏγʔϧυʹൺ΂ͲΕ͘Β͍ͷޮՌΛൃش͢Δͷ͔Λੋ

ඇ֤ࣗͰܭࢉ͞ΕΔ͜ͱΛ͓קΊ͠·͢ɻ

ຊߨٛͰѻ͏ςʔϚ͸ɺ্هʹड़΂ͨϊΠζͱ͸ੑ࣭

Λҟʹ͠·͢ɻճ࿏಺෦Ͱੜ੒͞ΕΔຊདྷతͳࡶԻ΍֎

དྷϊΠζͱ͸෺ཧաఔ͕ҟͳΓɺෳ਺ͷ৴߸ઢͰ৴߸Λ

఻ૹ͢Δ৔߹ʹग़ݱ͢ΔϊΠζΛѻ͍·͢ɻ͜ͷϊΠζ ʹ͍ͭͯ͸ɺܦݧతʹ͸Α͘஌ΒΕ͍ͯ·͕ͨ͠[24]ɻ

͔͠͠ɺଟॏઢ࿏͔ΒͳΔ఻ૹճ࿏ʹର͢ΔϊΠζੜ੒

ͷཧ࿦͕ݫີʹߏங͞Ε[25]ɺཧ࿦ʹج͖࣮ͮࡍͷՃ଎

ثʹॳΊͯԠ༻͞Εͨͷ͸͘͝࠷ۙͷ͜ͱͰ͢[26]ɻ චऀ͸ɺKEKʹೖॴ͔ͯ͠Β௕೥ϏʔϜ਍அʹैࣄ

ͯ͠དྷ·͕ͨ͠ɺ࣮ࡍʹܦݧͨ͠ϊΠζͷ໰୊Λ௕೥ղ

ܾ͢Δ͜ͱ͕Ͱ͖·ͤΜͰͨ͠ɻ͋Δ࣌KEKͰɺ͜ͷ ϊΠζཧ࿦ͷߨٛΛௌߨ͢Δػձ͕͋Γ[27]ɺ͜ͷཧ࿦

ΛԠ༻͢Ε͹೰·͍͠ϊΠζ໰୊ΛղܾͰ͖ΔͷͰ͸ͳ

͍͔ͱ௚ײతʹࢥ͍·ͨ͠ɻ৽ཧ࿦ͷԠ༻ྫ͸ɺి࣓ੴ

ిݯ͔Βి࣓ੴʹڙڅ͞ΕΔిྗ഑৴ʹؔ͢Δ΋ͷͰɺ ϊΠζରࡦޙͷ࣓৔ͷϦοϓϧϊΠζ͸େ͖͘௿ݮ͞Ε

ͨͱใࠂ͞Ε·ͨ͠ɻ

ϏʔϜ਍அͷΑ͏ͳ৴߸఻ૹͷ৔߹ɺಉ࣠έʔϒϧ͕

࢖ΘΕΔ͜ͱ͕ଟ͍ͷͰ͕͢ɺಉ࣠ߏ଄Λ࣋ͬͨέʔϒ ϧʹ͓͚Δ৴߸఻ૹͰ͸ɺͲͷΑ͏ʹ৽ཧ࿦ΛԠ༻͢Ε

͹Α͍ͷ͔͕౰ॳ͸Α͘Θ͔Γ·ͤΜͰͨ͠ɻͦͷޙɺ චऀͳΓʹݕ౼͠ɺΑ͏΍͘Ұͭͷ݁࿦ʹୡ͠·ͨ͠ͷ Ͱɺ͜ͷݕ౼಺༰ΛຊηϛφʔͷςΩετͱͯ͠·ͱΊ Δ͜ͱʹ͠·ͨ͠ɻ

ϊΠζੜ੒ͱͦͷ཈੍ٕज़ʹؔ͢ΔڭՊॻ͸਺ଟ͘ଘ ࡏ͠·͕͢ɺຊߨٛͷ಺༰͸ɺ͜ͷΑ͏ͳڭՊॻʹ͸ه ࡌ͞Ε͍ͯͳ͍ɺචऀ͕ݱ৔Ͱ࣮ࡍʹ؍ଌͨ͠՝୊ʹج

͍͍ͮͯ·͢ɻैͬͯຊ಺༰͸ɺಛఆͷϏʔϜ਍அʹݶ ఆ͢Δ΋ͷͰ͸ͳ͘ɺՃ଎ثٕज़શൠʹԠ༻ՄೳͰ͢ɻ ຊߨٛͰ͸ɺϏʔϜ਍அͷྫͱͯ͠௕ύϧεϏʔϜͷి

ྲྀܭଌΛऔΓ্͛Δ͜ͱʹ͠·͢ɻ

ిࢠઢܗՃ଎ثʹ͓͚Δ௕ύϧεϏʔϜͷిྲྀܭଌ (ύϧε෯≳1µs)Ͱ͸ɺϑΣϥΠτίΞʔʹίΠϧΛଟ

਺ճר͍ͨిྲྀϞχλʔ[28]͕༻͍ΒΕΔ͜ͱ͕ଟ͍ɻ

͜ͷϞχλʔ͸ɺίΞʔϞχλʔ(CM)ɺτϩΠμϧϞ χλʔɺΧϨϯττϥϯεϑΥʔϚʔ౳ͱݺ͹Εɺઢܗ Ճ଎ثͰ͸࠷΋جຊతͳϞχλʔͷҰͭͱͯ͠޿͘ར༻

͞Ε͍ͯ·͢ɻ

චऀͷॴଐ͢ΔKEKిࢠཅిࢠೖࣹث(ҎԼೖࣹث) Ͱ͸ɺ୯όϯνͷిࢠ·ཅిࢠϏʔϜΛੜ੒͢ΔΑ͏ʹ ͳΓCMͷར༻͸ແ͘ͳͬͯ͠·͍·͕ͨ͠ɺKEK෺

࣭ߏ଄Պֶݚڀॴͷ௿଎ཅిࢠࢪઃͰ͸খܕͷిࢠઢ ܗՃ଎ثΛར༻ͯ͠௿଎ཅిࢠΛੜ੒͍ͯ͠·͢ɻ௿଎

ཅిࢠࢪઃͰ͸ిࢠΛඪతʹরࣹ͠௿଎ཅిࢠ(Τωϧ ΪʔՄม/࠷େ35keV)Λੜ੒͠ɺݻମද໘෺ੑ΍ݪࢠ෼

ࢠ෺ཧֶͷݚڀ͕ਫ਼ྗతʹߦΘΕ͍ͯ·͢[29]ɻຊՃ଎

ثͰ͸CMΛར༻ͯ͠ඇഁյͰϏʔϜిྲྀΛৗ࣌ܭଌ

͍ͯ͠·͢ɻ

͜ͷՃ଎ثͰ͸طଘͷCMΛ2୆ͱ৽نʹ੡࡞ͨ͠

ಉ༷ͳϞχλʔ1୆ɺ߹ܭ3୆Λར༻ͯ͠ϏʔϜిྲྀΛ ܭଌ͍ͯ͠·͢ɻ৽نͷ΋ͷ͸طଘͷ΋ͷΛࢀߟʹͯ͠

ಉ༷ʹ੡࡞ͨͭ͠΋ΓͰ͕ͨ͠ɺϊΠζ཈੍ͱ͍͏؍఺

͔Β͢ΔͱطଘϞχλʔ͸໰୊ͳ͘ར༻Ͱ͖͍ͯͨʹ΋

ؔΘΒͣɺ৽نϞχλʔ͸ϊΠζͷӨڹΛେ͖͘ड͚Δ

͜ͱʹͳΓ·ͨ͠ɻϊΠζ௿ݮٕज़ͷҰͭͱͯ͠༗ޮͳ νϣʔΫίΠϧΛ༻͍ͨϊΠζରࡦΛԿ౓΋ࢼΈ·ͨ͠

͕͜ͱ͝ͱࣦ͘ഊʹؼ͠·ͨ͠^*2ɻ͜ͷΑ͏ͳܦݧ͕͜

ͷ໰୊Λߟ͑Δग़ൃ఺ͱͳΓɺ͜͜ͰϊΠζੜ੒ͷݪཧ ʹཱͪ໭ͬͯߟ͑ΔඞཁੑʹഭΒΕ·ͨ͠ɻ

ઢܗՃ଎ثͰ͸ϊΠζ͸ੲ͔Β໽հͳ໰୊Λఏڙͯ͠

͍·͢ɻಛʹߴిྗΫϥΠετϩϯ΍ߴ଎ΩοΧʔۙ͘

ͷϏʔϜ਍அͰ͸ɺϊΠζΛආ͚Δ͜ͱ͕೉༷͘͠ʑͳ

޻෉ʹΑΓϊΠζ཈੍͕ࢼΈΒΕ͖ͯ·ͨ͠ɻ

ຊηϛφʔͰ͸ɺCMͷ఻ૹઢ࿏ͷجຊʹཱͪ໭Γɺ

৴߸఻ૹͱϊΠζੜ੒ͷݪཧΛݕ౼͢Δ͜ͱʹ͠·͢ɻ

ৄࡉʹղੳͯ͠ߦ͘ͱɺطଘϞχλʔͱ৽نϞχλʔͰ

͸ɺάϥϯυ(Gnd.)ͷҐஔͱऔΓํʹຊ࣭తͳҧ͍͕

͋Γɺ͜ͷΘ͔ͣͳҧ͍͕৴߸఻ૹʹେ͖ͳӨڹΛ༩͑ɺ

࠷ऴతʹ৴߸࿪Έ΍ϊΠζੜ੒ͷݪҼʹͳ͍ͬͯΔ͜ͱ

͕Θ͔Γ·ͨ͠ɻ

఻ૹճ࿏ʹ͓͍ͯ͸ɺGnd.ͷऔΓํ͕؊ཁͰɺ৴߸

఻ૹͱϊΠζੜ੒ʹେ͖ؔ͘ΘΔͱ͍͏͜ͱΛ͓࿩ͨ͠

͍ͱࢥ͍·͢ɻ

*2νϣʔΫίΠϧͱ͸ɺϦϯάঢ়ͷϑΣϥΠτίΞͳͲͷ࣓ੑମ ʹಉ࣠έʔϒϧΛϦϯάʹԊͬͯෳ਺ճר͖͚ͭͨ΋ͷΛݴ͍

·͢. Ճ଎ثࢪઃͰ͸ɺνϣʔΫίΠϧ͸ϊΠζ཈੍ٕज़ͷҰ

ͭͱͯ͠͠͹͠͹༻͍ΒΕ·͢. ࢢൢͷϑΣϥΠτίΞ͸प೾

਺ಛੑ͸༨ΓΑ͋͘Γ·ͤΜ(f≲10 kHz). प೾਺ಛੑͷൺֱ

తྑ͍(f≲100 kHz)ز͔ͭͷϑΣϥΠτίΞΛ༻͍ͯࢼݧ͠

·͕ͨ͠ɺϊΠζ೾ܗʹมԽ͸શ͘ݟΒΕ·ͤΜͰͨ͠.

2. ϏʔϜిྲྀܭଌͷجૅ

2.1. CMΛར༻ͨ͠ిྲྀܭଌ

ਤ1ʹ௿଎ཅిࢠࢪઃʹ͓͚ΔిࢠՃ଎ثͷུ֓ਤΛ

ࣔ͠·͢ɻ

ਤ 1 KEK෺࣭ߏ଄Պֶݚڀॴ௿଎ཅిࢠ࣮ݧࢪ

ઃʹ͓͚ΔిࢠઢܗՃ଎ثͷϏʔϜϥΠϯུ֓ਤ; KL: klystron, P.B.: pre-buncher, ACC.: acceler- ator structure, PRM: profile monitor, GV: gate valve, HV: high voltage station.

͜ͷՃ଎ث͸యܕతͳখܕͷSόϯυిࢠՃ଎ثͰ

͢ɻ೤ӄۃ͔Β์ग़͞ΕΔ೤ిࢠΛϓϨόϯνϟʔٴͼ όϯνϟʔ͔ΒͳΔೖࣹ෦ͰϏʔϜΛू܈ͨ͠ޙɺՃ଎

؅ʹΑΓ55 MeV·ͰՃ଎͞Ε·͢ɻՃ଎ిࢠ͸ඪతʹ

রࣹ͞Εɺ௿଎ཅిࢠʹม׵͞Εͨޙɺ࣮ݧࣨ΁ͱ༌ૹ

͞ΕϢʔβʔ࣮ݧʹఏڙ͞Ε·͢ɻ͜ͷՃ଎ثͰ͸ܭ3

୆ͷCMΛՃ଎ثʹԊͬͯ഑ஔ͠ɺϏʔϜిྲྀΛৗ࣌ܭ ଌ͍ͯ͠·͢ɻطଘͷCM/2୆Λిࢠॐ௚ޙ(CM1)ͱ Ճ଎؅ग़ޱ(CM2)ʹ഑ஔ͠ɺ৽نͷCM/1୆Λඪతલ

(CM3)ʹ഑ஔ͍ͯ͠·͢ɻ

CMΛ༻͍ͨϏʔϜిྲྀܭଌͷݪཧΛਤ2ʹࣔ͠·

͢ɻϏʔϜ͕ਅۭύΠϓʹઃ͚ͨηϥϛοΫΪϟοϓΛ ௨ա͢Δͱ͖ɺΪϟοϓ͔Β࿙Ӯ͢Δࣗݾ৔(࣓৔)͕ ίΠϧͰݕग़͞Ε·͢ɻϏʔϜిྲྀʹൺྫͨ͠༠ಋిྲྀ

(I0)Λऴ୺఍߅(R0)ʹΑΓిѹ(V0)ʹม׵͠ɺͦͷৼ ෯Λܭଌ͢Ε͹ϏʔϜిྲྀʹম͖௚͢͜ͱ͕Ͱ͖·͢ɻ

͜͜ͰϏʔϜͱίΠϧΛ1:N(N:ίΠϧר਺)ͷτϥ ϯεͱͯ͠ѻ͑͹ɺCM͸ిѹ૿෯ثͱͯ͠࡞༻͠·͢ɻ

ిѹग़ྗ͸ಉ࣠έʔϒϧ(έʔϒϧ௕l ∼20 m (CM1, CM2),l ∼15 m (CM3))ʹΑΓ఻ૹ͞ΕɺࢢൢͷΦγ ϩείʔϓ(ҎԼΦγϩ)Λ༻͍Ε͹৴߸೾ܗͱిѹৼ ෯Λ༰қʹܭଌ͢Δ͜ͱ͕Ͱ͖·͢ɻ৴߸ͷిѹৼ෯ຢ

͸໘ੵͷܭଌ͔Βࣄલܭଌ͞Εͨߍਖ਼܎਺Λ৐ࢉ͢Ε͹

I_b

Io

Vacuum pipe Ceramic

Magnetic fields Beam current

Induced current R₀

Output voltage V_o

Coil CM e beam-

ਤ2 CMΛར༻ͨ͠ϏʔϜిྲྀܭଌʹ͓͚Δ৴߸ݕ ग़ͷݪཧ.

ిྲྀ஋ʹม׵͢Δ͜ͱ͕Ͱ͖·͢ɻ͜Ε͕CMʹΑΔ

ిྲྀܭଌͷجຊݪཧͰ͢ɻఆྔతͳղੳʹڵຯͷ͋Δํ

͸ଞͷจݙ[30]Λࢀরͯ͠Լ͍͞ɻ 2.2. CMͷػցతߏ଄

ਤ3͸ೖࣹثʹ͓͚ΔCMͷػցతߏ଄Λࣔ͠ɺϏʔ Ϝଆ໘͔Βݟͨஅ໘ਤΛࣔ͠·͢ɻ

Spring BNC Receptacle

Aluminum Case RF Contactor

Spring 21

Internal terminator Toroidal Ferrite Core

Insulating Ceramic

Coil

φ 45mm Beam

Polyimide film

Test input Output

Polyimide film

1-Turn Calibration Coil

ਤ3 CMͷػցతߏ଄ଆ໘ਤ.

CM ͸ి࣓γʔϧυ༻έʔε(Al੡)ͷ಺෦ʹೋ෼

ׂ͞ΕͨϑΣϥΠτίΞʔ(τʔΩϯ੡12001H[31])͕

૊Έࠐ·Ε͍ͯ·͢ɻͦͷ্൒෼ʹ͸ಋઢ͕25ճר͔

Εɺಋઢ୺͸BNCͷத৺ಋମͱGnd.ʹ઀ଓ͞Ε·͢ɻ BNC͸ϙϦΠϛυϑΟϧϜ(੺৭)ΛڬΜͰిؾతʹ έʔε͔Βු͔ͤΔߏ଄ʹͳ͍ͬͯ·͢ɻίΞʔͷԼ൒

෼ʹ͸1λʔϯίΠϧʹ఍߅50 ΩΛ௚ྻ઀ଓ͠BNC ʹ઀ଓ͠·͢ɻ͜Ε͸ిྲྀߍਖ਼ͷͨΊͷςετύϧεೖ

ྗͱͳΓ·͢ɻ

ೋ෼ׂ͞ΕͨίΞʔ͸্Լ͔ΒόωͰڧ͘ԡ͞Εɺݻ ఆδάΛ࢖ͬͯͦͷڥք໘͸ີண͞Εɺܭଌ࣌ͷ࣓৔࿙

Ӯ͕཈੍͞ΕΔߏ଄ʹͳ͍ͬͯ·͢ɻCM͸ਅۭΛഁ

Δ͜ͱͳ͘ηϥϛοΫΪϟοϓʹ૷ண͞Εɺ෼ׂ෦͸ί Ξʔʹ͕ؒܺੜ͡ͳ͍Α͏ʹέʔεʹ։͚ͨ4ϲॴͷϘ

ϧτకΊͰਅۭύΠϓʹݻఆ͞ΕΔߏ଄ʹͳ͍ͬͯ·͢

(ਤ4ࢀর)ɻςετೖྗʹύϧε͕ೖྗ͢Δͱɺ1:N τ ϥϯεΛ௨ͯ͠ऴ୺఍߅ʹΑΓిѹ৴߸͕BNC͔Βग़

ྗ͞Ε·͢ɻਤ4ʹೖࣹثͰ੡࡞͞ΕͨCMΛࣔ͠·

͢ɻࠨ൒෼͕ίΠϧΛר͍ͨ৴߸ग़ྗ෦Λࣔ͠ɺӈ൒෼

͸ςετೖྗ෦Λ͍ࣔͯ͠·͢ɻ

ਤ4 ೋ෼ׂߏ଄ʹΑΔCM.ࠨ൒෼: ίΠϧΛר͍ͨ

৴߸ग़ྗ෦ɺӈ൒෼: ςετೖྗ෦.

3. ৴߸఻ૹղੳͷͨΊͷ౳Ձճ࿏

3.1. ౳Ձճ࿏

ਤ5ʹ৴߸఻ૹղੳͷͨΊͷ౳Ձճ࿏Λ໛ࣜతʹࣔ͠

·͢ɻਤ5 (a)͸ܭଌγεςϜશମͷ౳Ձճ࿏Λࣔͨ͠

ਤ5 (a) CMʹΑΔిྲྀܭଌʹ͓͚Δ৴߸఻ૹղੳ

ͷͨΊͷ౳Ձճ࿏. ϏʔϜ(1λʔϯίΠϧ)ͱCM(ί Πϧ)ͱͷ૬ޓ࡞༻͸τϥϯεΛ༻͍ͯදݱ͞Ε͍ͯ

·͢. (b)ಉ౳Ձճ࿏. ͨͩ͠ɺτϥϯεΛCW৴߸

ݯʹஔ͖׵͍͑ͯ·͢.

΋ͷͰ͢ɻϏʔϜΛ1λʔϯίΠϧͱݟͳ͠ɺ1:Nτϥ ϯεΛհͯͦ͠ͷग़ྗΛಉ࣠έʔϒϧͰ఻ૹ͠৴߸೾ܗ

͕ΦγϩͰܭଌ͞Ε·͢ɻ

ਤ5 (b)͸৴߸఻ૹղੳͷͨΊͷ౳Ձճ࿏Λࣔ͠·͢ɻ

τϥϯεͷಛੑ͸ɺίΠϧؒͷ݁߹౓ͱ಺ଁ͢ΔϑΣ

ϥΠτίΞʔͷप೾਺ಛੑʹΑΓܾ·Γ·͢ɻ͜͜Ͱ

͸ɺ؆୯ͷͨΊʹτϥϯεΛআ͖ɺͦͷ୅ΘΓిѹ৴߸

ݯʹஔ͖׵͍͑ͯ·͢ɻैͬͯɺݫີʹ͸ίΠϧؒͷ݁

߹౓ͷಛੑ͕ࣦΘΕΔ͜ͱʹͳΓ·͢ɻ͔͠͠ɺ͜ͷಛ

ੑ͸CMग़ྗͷઈର஋ʹؔΘΔ΋ͷͳͷͰڵຯ͸͋Γ

·ͤΜɻޙऀʹ͍ͭͯ͸ɺCMग़ྗͷप೾਺ಛੑΛऔΓ

ೖΕͨిѹ৴߸ݯΛߟྀ͢Ε͹໰୊͋Γ·ͤΜɻ͢ͳΘ

ͪɺ৴߸ݯग़ྗ(VG)ʹ͸ΠϯμΫλϯεಛੑΛߟྀ͠ɺ ϑΣϥΠτίΞʔͷಁ࣓཰ͷप೾਺ಛੑΛద੾ʹऔΓೖ

ΕΔ͜ͱʹ͠·ͨ͠ɻ

͜͜Ͱ͸VG(ω)ʹର͠ҎԼͷΑ͏ͳप೾਺ಛੑΛߟ

ྀ͢Δ͜ͱʹ͠·͢ɻ

VG(ω) =AjωL1(ω)I0 (1)

͜͜ͰɺL1ͱjωL1 ͸ϑΣϥΠτίΞʔͷࣗݾΠϯμ ΫλϯεͱΠϯϐʔμϯεΛͦΕͧΕࣔ͠·͢ɻI0͸ ϏʔϜిྲྀͰ͢ɻA͸ൺྫఆ਺Λද͠·͕͢ɺݫີʹ͸

ίΠϧؒͷ݁߹౓Λ༻͍Ε͹ࢉग़͢Δ͜ͱ͕Ͱ͖·͢ɻ

৴߸ݯͰੜ੒͞Εͨ৴߸͸15 mͷಉ࣠έʔϒϧͰ఻ૹ

͞ΕɺΦγϩ಺ଂ50 ΩΛ௨ͯ͠೾ܗܭଌ͞Ε·͢ɻ Φγϩʹ͸ిݯ(୯૬ AC100 V)͕઀ଓ͞ΕΔ͚ͩ

ͰɺGnd.ઢ͸ੵۃతʹ͸઀ଓ͞Ε͍ͯ·ͤΜɻ͔͠͠

ͳ͕ΒɺΑ͘ݟΔͱిݯϥΠϯͷยଆΛ௨ͯ͠ిݯ༻෼

ి൫ͷ Gnd.(P S Gnd.)ʹ઀ଓ͞ΕΔ͜ͱʹͳΓ·͢ɻ

ैͬͯɺΦγϩͷೖྗ୺ࢠͱγϟʔγͷGnd.͸ࣗಈత ʹP S Gnd.ʹ୹བྷͯ͠͠·͏͜ͱʹ஫ҙ͢΂͖Ͱ͢^*3ɻ

ैͬͯɺೖྗ৴߸ͷిྲྀͷҰ෦͸ɺಉ࣠έʔϒϧͰ͸ͳ

͘P S Gnd.Λ௨ͯ͠΋ؼؐ͢Δ͜ͱʹͳΔͷͰ஫ҙ͕

ඞཁͰ͢ɻ

3.2. ৴߸఻ૹ࿏ʹ͓͚ΔGnd.ͷऔΓํ

ਤ5Λ͞ΒʹਐΊͨ౳Ձճ࿏Λਤ6ʹࣔ͠·͢ɻ͜ͷ ਤͰ͸ɺ৴߸ݯଆͰGnd.ʹ୹བྷͤ͞ͳ͍৔߹ͱ୹བྷ͞

ͤͨ৔߹ͷ౳Ձճ࿏Λ͍ࣔͯ͠·͢ɻ͜͜Ͱݴ͏Gnd.

ͱ͸Ճ଎ثͷάϥϯυΛද͠·͕͢ɺP S Gnd.ͱ۠ผ

͢ΔͨΊʹಛʹAcc Gnd.ͱه͓͖ͯ͠·͢ɻਤ1ʹ΋

ࣔ͢Α͏ʹAcc Gnd.ͱ͸Ճ଎ثຊମͷάϥϯυΛද͠

͍ͯ·͢ɻ

ै ͬ ͯ ɺCM ʹ ର ͢ Δ ά ϥ ϯ υ ͷ औ Γ ํ ͱ ͠ ͯ ɺ Acc Gnd.Λ઀ଓ͠ͳ͍ঢ়ଶ (Acc Gnd.ແ/off-state) ͱ઀ଓͨ͠ঢ়ଶ(Acc Gnd.༗/on-state)͕ଘࡏ͢Δ͜

ͱ͕ཧղͰ͖·͢ɻ

܁Γฦ͠ʹͳΓ·͕͢ɺલऀ͸Ճ଎ثຊମͷάϥϯυ

*3͜ͷ͜ͱ͸ɺΦγϩͷػछʹґଘ͢ΔͷͰචऀͷΦγϩͷάϥ ϯυ઀ଓ͕ۮʑ͜ͷΑ͏ʹͳ͍ͬͯͨͱ͍͏ͷ͕ਖ਼͍͠Α͏Ͱ

͢.

ϧτకΊͰਅۭύΠϓʹݻఆ͞ΕΔߏ଄ʹͳ͍ͬͯ·͢

(ਤ4ࢀর)ɻςετೖྗʹύϧε͕ೖྗ͢Δͱɺ1:N τ ϥϯεΛ௨ͯ͠ऴ୺఍߅ʹΑΓిѹ৴߸͕BNC͔Βग़

ྗ͞Ε·͢ɻਤ4ʹೖࣹثͰ੡࡞͞ΕͨCMΛࣔ͠·

͢ɻࠨ൒෼͕ίΠϧΛר͍ͨ৴߸ग़ྗ෦Λࣔ͠ɺӈ൒෼

͸ςετೖྗ෦Λ͍ࣔͯ͠·͢ɻ

ਤ4 ೋ෼ׂߏ଄ʹΑΔCM.ࠨ൒෼: ίΠϧΛר͍ͨ

৴߸ग़ྗ෦ɺӈ൒෼: ςετೖྗ෦.

3. ৴߸఻ૹղੳͷͨΊͷ౳Ձճ࿏

3.1. ౳Ձճ࿏

ਤ5ʹ৴߸఻ૹղੳͷͨΊͷ౳Ձճ࿏Λ໛ࣜతʹࣔ͠

·͢ɻਤ5 (a)͸ܭଌγεςϜશମͷ౳Ձճ࿏Λࣔͨ͠

ਤ5 (a) CMʹΑΔిྲྀܭଌʹ͓͚Δ৴߸఻ૹղੳ

ͷͨΊͷ౳Ձճ࿏. ϏʔϜ(1λʔϯίΠϧ)ͱCM(ί Πϧ)ͱͷ૬ޓ࡞༻͸τϥϯεΛ༻͍ͯදݱ͞Ε͍ͯ

·͢. (b)ಉ౳Ձճ࿏. ͨͩ͠ɺτϥϯεΛCW৴߸

ݯʹஔ͖׵͍͑ͯ·͢.

΋ͷͰ͢ɻϏʔϜΛ1λʔϯίΠϧͱݟͳ͠ɺ1:Nτϥ ϯεΛհͯͦ͠ͷग़ྗΛಉ࣠έʔϒϧͰ఻ૹ͠৴߸೾ܗ

͕ΦγϩͰܭଌ͞Ε·͢ɻ

ਤ5 (b)͸৴߸఻ૹղੳͷͨΊͷ౳Ձճ࿏Λࣔ͠·͢ɻ

τϥϯεͷಛੑ͸ɺίΠϧؒͷ݁߹౓ͱ಺ଁ͢ΔϑΣ

ϥΠτίΞʔͷप೾਺ಛੑʹΑΓܾ·Γ·͢ɻ͜͜Ͱ

͸ɺ؆୯ͷͨΊʹτϥϯεΛআ͖ɺͦͷ୅ΘΓిѹ৴߸

ݯʹஔ͖׵͍͑ͯ·͢ɻैͬͯɺݫີʹ͸ίΠϧؒͷ݁

߹౓ͷಛੑ͕ࣦΘΕΔ͜ͱʹͳΓ·͢ɻ͔͠͠ɺ͜ͷಛ

ੑ͸CMग़ྗͷઈର஋ʹؔΘΔ΋ͷͳͷͰڵຯ͸͋Γ

·ͤΜɻޙऀʹ͍ͭͯ͸ɺCMग़ྗͷप೾਺ಛੑΛऔΓ

ೖΕͨిѹ৴߸ݯΛߟྀ͢Ε͹໰୊͋Γ·ͤΜɻ͢ͳΘ

ͪɺ৴߸ݯग़ྗ(VG)ʹ͸ΠϯμΫλϯεಛੑΛߟྀ͠ɺ ϑΣϥΠτίΞʔͷಁ࣓཰ͷप೾਺ಛੑΛద੾ʹऔΓೖ

ΕΔ͜ͱʹ͠·ͨ͠ɻ

͜͜Ͱ͸VG(ω)ʹର͠ҎԼͷΑ͏ͳप೾਺ಛੑΛߟ

ྀ͢Δ͜ͱʹ͠·͢ɻ

VG(ω) =AjωL1(ω)I0 (1)

͜͜ͰɺL1ͱjωL1͸ϑΣϥΠτίΞʔͷࣗݾΠϯμ ΫλϯεͱΠϯϐʔμϯεΛͦΕͧΕࣔ͠·͢ɻI0͸ ϏʔϜిྲྀͰ͢ɻA͸ൺྫఆ਺Λද͠·͕͢ɺݫີʹ͸

ίΠϧؒͷ݁߹౓Λ༻͍Ε͹ࢉग़͢Δ͜ͱ͕Ͱ͖·͢ɻ

৴߸ݯͰੜ੒͞Εͨ৴߸͸15 mͷಉ࣠έʔϒϧͰ఻ૹ

͞ΕɺΦγϩ಺ଂ50 ΩΛ௨ͯ͠೾ܗܭଌ͞Ε·͢ɻ Φγϩʹ͸ిݯ(୯૬ AC100 V)͕઀ଓ͞ΕΔ͚ͩ

ͰɺGnd.ઢ͸ੵۃతʹ͸઀ଓ͞Ε͍ͯ·ͤΜɻ͔͠͠

ͳ͕ΒɺΑ͘ݟΔͱిݯϥΠϯͷยଆΛ௨ͯ͠ిݯ༻෼

ి൫ͷ Gnd.(P S Gnd.)ʹ઀ଓ͞ΕΔ͜ͱʹͳΓ·͢ɻ

ैͬͯɺΦγϩͷೖྗ୺ࢠͱγϟʔγͷGnd.͸ࣗಈత ʹP S Gnd.ʹ୹བྷͯ͠͠·͏͜ͱʹ஫ҙ͢΂͖Ͱ͢^*3ɻ

ैͬͯɺೖྗ৴߸ͷిྲྀͷҰ෦͸ɺಉ࣠έʔϒϧͰ͸ͳ

͘P S Gnd.Λ௨ͯ͠΋ؼؐ͢Δ͜ͱʹͳΔͷͰ஫ҙ͕

ඞཁͰ͢ɻ

3.2. ৴߸఻ૹ࿏ʹ͓͚ΔGnd.ͷऔΓํ

ਤ5Λ͞ΒʹਐΊͨ౳Ձճ࿏Λਤ6ʹࣔ͠·͢ɻ͜ͷ ਤͰ͸ɺ৴߸ݯଆͰGnd.ʹ୹བྷͤ͞ͳ͍৔߹ͱ୹བྷ͞

ͤͨ৔߹ͷ౳Ձճ࿏Λ͍ࣔͯ͠·͢ɻ͜͜Ͱݴ͏Gnd.

ͱ͸Ճ଎ثͷάϥϯυΛද͠·͕͢ɺP S Gnd.ͱ۠ผ

͢ΔͨΊʹಛʹAcc Gnd.ͱه͓͖ͯ͠·͢ɻਤ1ʹ΋

ࣔ͢Α͏ʹAcc Gnd.ͱ͸Ճ଎ثຊମͷάϥϯυΛද͠

͍ͯ·͢ɻ

ै ͬ ͯ ɺCM ʹ ର ͢ Δ ά ϥ ϯ υ ͷ औ Γ ํ ͱ ͠ ͯ ɺ Acc Gnd. Λ઀ଓ͠ͳ͍ঢ়ଶ(Acc Gnd.ແ/off-state) ͱ઀ଓͨ͠ঢ়ଶ(Acc Gnd.༗/on-state)͕ଘࡏ͢Δ͜

ͱ͕ཧղͰ͖·͢ɻ

܁Γฦ͠ʹͳΓ·͕͢ɺલऀ͸Ճ଎ثຊମͷάϥϯυ

*3͜ͷ͜ͱ͸ɺΦγϩͷػछʹґଘ͢ΔͷͰචऀͷΦγϩͷάϥ ϯυ઀ଓ͕ۮʑ͜ͷΑ͏ʹͳ͍ͬͯͨͱ͍͏ͷ͕ਖ਼͍͠Α͏Ͱ

͢.

ਤ6 ৴߸ݯଆͰGnd.ʹ୹བྷͤ͞ͳ͍৔߹ͱ୹བྷ͞

ͤͨ৔߹ͷ͞Βʹ֦ு͞Εͨ౳Ձճ࿏.

ʹର͠ු͍͍ͯΔঢ়ଶΛࣔ͠ɺޙऀ͸͜Εʹର͠ಋ௨͠

͍ͯΔঢ়ଶΛࣔ͠·͢ɻ͜ͷ͜ͱ͸ɺޙͰΘ͔ͬͨ͜ͱ Ͱ͕͢ɺલऀ͕৽ن੡࡞ͨ͠CMʹ૬౰͠ɺޙऀ͕ط ଘͷCMʹ૬౰͍ͯ͠·͢ɻ৽نCMͰ͸ɺϙϦΠϛ υઈԑ͸ग़ྗBNCͷGnd.Λέʔε (Acc Gnd.)͔Β

ු͔ͤΔͨΊʹɺݻఆ༻ωδͱͯۚ͠ଐͷ୅ΘΓʹηϥ ϛοΫωδΛΘ͟Θ͟༻͍·ͨ͠(ਤ7ࢀর). ଞํɺط ଘCMͰ͸ϙϦΠϛυઈԑ͕͋Δʹ΋ؔΘΒͣɺΑ͘ݟ Δͱۚଐωδ͕༻͍ΒΕ͍ͯ·ͨ͠^*4ɻ

ਤ7 CMೖग़ྗ෦ͷ֦େਤ. BNCͱέʔεؒʹϙϦ ΠϛυϑΟϧϜ͕ૠೖ͞ΕɺBNCΛՃ଎ثάϥϯυ͔

Βઈԑ͢ΔͨΊͷηϥϛοΫωδ͕ݟ͑·͢.

4. ৴߸఻ૹղੳͷͨΊͷ४උ

4.1. ౳Ձճ࿏

ਤ8ʹ৴߸఻ૹղੳͷͨΊͷ౳Ձճ࿏Λࣔ͠·͢ɻ

*4౰ॳɺචऀ͸ɺ͜ͷѻ͍ͷҙຯ͕Α͘ཧղͰ͖·ͤΜͰͨ͠.

͢ͳΘͪɺطଘCMʹ͸ϙϦΠϛυઈԑ͕ͳ͞Ε͍ͯͨͷͰɺ

౰વͷ͝ͱ͘CMͷGnd.ΛέʔεͷGnd.͔Βු͔͢΂͖

ͱߟ͑·ͨ͠. ·ͨ౰࣌͸ɺҰ఺Gnd.͕ྑ͍ͱ৴͡ෛՙଆͰ ͷΈGnd.઀ଓ͢Ε͹Α͠ͱ͠ɺ৴߸ݯଆ͸׬શͳϙϦΠϛυ ઈԑ͕༗ޮͰ͋Ζ͏ͱߟ͑·ͨ͠. ࠓ͔ΒৼΓฦΔͱɺલ೚ऀ

ʹΑΓߦΘΕͨطଘCMʹର͢Δ͜ͷΑ͏ͳѻ͍͸ɺGnd.ʹ ର͢ΔઈԑޮՌΛாফ͠ʹ͢Δ΋ͷͰ͢. ݁Ռతʹ৴߸ݯଆͷ Acc Gnd.ͷ༗ແͱ͍͏Gnd.ͷऔΓํͷҧ͍͕৴߸఻ૹʹେ

͖ͳҧ͍Λ΋ͨΒ͢͜ͱʹͳΓ·ͨ͠. ͜ͷ݁࿦ΛಘΔͷʹਵ

෼ͱ࣌ؒΛཁ͠·ͨ͠.

ਤ8 ୈࡾͷάϥϯυઢ(Gnd. Line)ΛؚΜͩ৴߸఻

ૹղੳͷͨΊͷूதఆ਺ճ࿏ૉࢠͰදݱͨ͠౳Ձճ࿏.

ೋͭͷ఻ૹϞʔυ(dϞʔυͱcϞʔυ)ͷ఻ૹ࢟ଶ΋

ಉ࣌ʹද͍ࣔͯ͠·͢.

ਤ8͸ɺਤ6ʹରԠͯ͠ࠨଆʹ৴߸ݯ(ઢ࿏Ґஔج४

఺z= 0)Λ഑ஔ͠ɺ৴߸͸ɺಉ࣠έʔϒϧ(௕͞l)ʹΑ Δ৴߸఻ૹΛܦͯӈଆͷෛՙ(ઢ࿏Ґஔz=l)ʹ఻ૹ͞

Ε·͢ɻ৴߸ݯ(e1ɺe2)ͱ৴߸ݯͷ಺෦ෛՙ(Z1ɺZ2)ɺ

֎෦ෛՙ(Z4ɺZ5)ͱGnd. LineΠϯϐʔμϯε(Z3ɺ Z6)͸ղੳͷ֦ுੑͱରশੑΛߟྀ͠ूதఆ਺ͱͯ͠഑

ஔ͍ͯ͠·͢ɻ͜ΕΒ͸఻ૹઢ࿏ղੳͷͨΊͷجຊύϥ ϝʔλͱͳΓ·͢ɻ

ਤ 6 ͱ ͷ ର Ԡ Λ ߟ ͑ Δ ͱ ɺ͜ Ε Β ͷ ύ ϥ ϝ ʔ λ

͸ e1 = VG(ω) ̸= 0ɺe2 = 0ɺZ1 = Z2 = 0ɺ Z4 = 50 ΩɺZ5 = 0 Ͱ ༩ ͑ Β Ε · ͢ ɻܭ ࢉ ʹ Α Δ ͱ ϑ Σ ϥ Π τ ί Ξ ʔ ͷ ࣗ ݾ Π ϯ μ Ϋ λ ϯ ε ͸ L1 ∼16 mH (ൺಁ࣓཰µr=12000 (

f ≲30×10³Hz) ɺ µr(f)=4.1×10⁸f^−0.96(

f ≳30×10³ Hz)

)ͱࢉग़Ͱ͖

·͢^*5ɻճ࿏ͷରশੑ͔Β৴߸ݯͱ֎෦ෛՙଆͷ֤த఺

͔ΒGnd. Line͕Ҿ͖ग़͞Ε·͢ɻ

͜͜·ͰདྷΔͱͲ͏Ͱ͠ΐ͏͔ɺਤ8Λ͝ཡ͍ͩ͘͞ɻ

͜͜Ͱಉ࣠έʔϒϧ͸ɺLine1(த৺ಋମ)ͱLine2(֎ಋ ମ)Ͱߏ੒͞Ε·͢ɻ௨ৗͷճ࿏ਤͰ͸͜ΕͰॆ෼Ͱ͢

͕ɺୈࡾͷάϥϯυઢ(Gnd. Line)͕෇͚ՃΘ͍ͬͯΔ

͜ͱ͕Θ͔Γ·͢ɻ͜ͷઢ͸࣮͸ΞʔεάϥϯυઢΛද

͍ͯ͠·͢ɻಉ࣠έʔϒϧ͸ೋຊઢͰߏ੒͞Ε·͕͢ɺ

ෳ਺ઢʹΑΔ఻ૹճ࿏ͱ͸ɺ࣮͸͜ͷΞʔεάϥϯυઢ

͕ՃΘͬͨࡾຊઢͷ఻ૹճ࿏Λද͍ͯ͠·͢ɻ͞Βʹ͜

ͷΞʔεάϥϯυઢʹ͸ɺ༨ܭͳΠϯϐʔμϯε(Z3ɺ Z6)͕෇͍͍ͯΔ͜ͱ΋Θ͔Γ·͢ɻ͜ͷΞʔεάϥϯ υઢͱ༨ܭͳΠϯϐʔμϯεͷଘࡏ͕఻ૹճ࿏ʹग़ݱ͢

ΔϊΠζੜ੒ͷݪҼʹͳΔ͜ͱ͕௥ͬͯΘ͔Γ·͢ɻ

࣍અҎ߱Ͱଟॏઢ͔Β੒Δ఻ૹઢ࿏ཧ࿦Λ঺հ͠·

͢ɻ͔͠͠ɺͦͷલʹਤ8ʹࣔ͢౳Ձճ࿏ʹ͓͍࣮ͯࡍ ͷCMͰ૝ఆ͞ΕΔύϥϝʔλΛԾఆ͢Ε͹ɺ৴߸఻ૹ

*5प೾਺ྖҬf≳30×10³Hzʹ͓͚Δ࣓ؾಁ࣓཰ͷ߱Լ͸प೾

਺ಛੑ(Χλϩά஋[31])͔ΒಡΈऔΓܭࢉʹऔΓೖΕ·ͨ͠.

͕ͲͷΑ͏ʹ࣮ݱ͞ΕΔͷ͔ΛܭࢉʹΑΓ࣮ײͯ͠௖͖

͍ͨͱࢥ͍·͢ɻҎԼʹɺͦͷܭࢉ৚݅Λ·ͱΊ͓͖ͯ

·͢ɻ

ܭࢉ৚݅(Case I)Ͱ͸ɺe1=VG(ω)ɺe2 = 0ɺZ3= Z6= 0ɺZ4= 50 ΩɺZ5= 0ͱ͓͖ɺਤ6ͷAcc Gnd.

༗ͷ৔߹ʹରԠͤ͞·͢ɻ͢ͳΘͪɺGnd. Lineʹ༨ܭ ͳΠϯϐʔμϯε͕ଘࡏ͠ͳ͍(Z3 =Z6= 0)ɺैͬͯ

Acc Gnd.ͱP S Gnd.͸ಉిҐʹͳΔɺͱ͍͏৚݅Ͱ

͢ɻZ4 = 50 Ω͸Φγϩ಺ଁͷऴ୺఍߅(ෛՙ)ͷ͜ͱ Ͱ͢ɻ·ͨɺిݯٴͼෛՙ͕ඇରশ(e1̸=e2ɺZ4̸=Z5) ʹ഑ஔ͞Ε͍ͯΔ͜ͱΛද͠·͢ɻ͜͜Ͱಛ௃తͳ͜ͱ

͸ɺΦγϩͷάϥϯυP S Gnd.͸ৗʹಋ௨͍ͯ͠·͢

͕ɺిݯ෦ͷάϥϯυAcc Gnd.ͷಋ௨৚݅Λߟྀͯ͠

͍Δ͜ͱͰ͢ɻ͜ͷ৚݅͸طଘCMͷ৚݅ʹରԠ͠ɺ఻

ૹઢ࿏ͷجຊಛੑ͕ಘΒΕ·͢ɻ

ܭࢉ৚݅(Case II)Ͱ͸ɺe1=VG(ω)ɺe2= 0ɺZ3= +∞^ɺZ6 = 0ɺZ4 = 50 ΩɺZ5 = 0ͱ͓͖ɺਤ6 ͷ Acc Gnd.ແͷ৔߹ʹରԠͤ͞·͢ɻ͜ͷܭࢉ৚݅͸ɺ Acc Gnd.ͷಋ௨৚݅ͷΈΛม͑ͨ৔߹ʹରԠ͠·͢ɻ

͜͜Ͱɺ஫ҙ͍ͨ͜͠ͱ͸P S Gnd.ͱAcc Gnd.ͱ ͷؔ܎Ͱ͢ɻՃ଎ثຊମ (ϏʔϜϥΠϯͷ͜ͱΛࢦ͠

·͢)͸ੵۃతʹ͸Gnd.ʹ઀ଓ͞Ε͍ͯ·ͤΜɻ͔͠

͠ɺਤ1ΛΑ͘ݟ͍ͯͩ͘͞ɻ΋͠৴߸ݯ෦ͷάϥϯ υAcc Gnd.͕ಋ௨͞ΕΔͳΒ͹ɺCM έʔε →^ਅ

ۭύΠϓ→ ^Ճ଎؅→^ಋ೾؅→ ^{ΫϥΠετϩϯ} → ΫϥΠετϩϯిݯ→^෼ి൫Gnd.ͱ͍͏ܦ࿏(͜Ε ΛGnd. Line Ͱ୅දͤ͞·͢)͕ด͡Δ͜ͱʹͳΓɺ Acc Gnd.ͱP S Gnd.͕݁߹͞ΕΔ͜ͱʹͳΔͷͰ͢ɻ

͜ͷ͜ͱ͕Ճ଎ثຊମ͸ੵۃతͰ͸ͳؒ͘઀తʹGnd.

ʹ઀ଓ͞ΕΔͱ͍͏͜ͱΛҙຯ͠·͢ɻैͬͯɺCM έʔε͕BNCGnd.ʹ୹བྷ͍ͯ͠Ε͹ɺAcc Gnd.ͱ P S Gnd.͸ಉ࣠έʔϒϧΛ௨ͯ͠Gnd.͕௚઀୹བྷ͞

ΕΔͱಉ࣌ʹɺGnd. Lineͱ͍͏ผͷܦ࿏Ͱ΋݁߹͢Δ

͜ͱʹͳΔ͜ͱ͕Θ͔Γ·͢ɻ

Ұൠతʹɺ௚઀୹བྷͷΠϯϐʔμϯε͸Gnd. Line ͷͦΕʹൺ΂ॆ෼খ͘͞ɺಉ࣠έʔϒϧͷLine2͕৴

߸ిྲྀͷؼؐ࿏ʹͳΔͱߟ͑ͯΑ͍Ͱ͠ΐ͏ɻ͜ͷΑ͏

ͳ৔߹ɺ৴߸ݯଆͱ֎෦ෛՙଆͷGnd.ؒʹిҐࠩ͸ੜ

͡·ͤΜɻ͔͠͠ɺCMέʔε͕BNCGnd.ʹର͠ු

͍͍ͯΔ৔߹(Acc Gnd.ແ)ɺ΋͘͠͸Acc Gnd.༗ͷ ঢ়ଶͰ΋ͦͷܦ࿏্ʹԿΒ͔ͷΠϯϐʔμϯε͕ଘࡏ͢

Ε͹(Z3 ̸= 0, Z6 ̸= 0)ɺP S Gnd.ͱAcc Gnd.ؒͷ Gnd. Lineʹ͸ΠϯϐʔμϯεʹԠͨ͡ిҐ͕ࠩੜ͡

Δ͜ͱʹͳΓ·͢ɻCase III͸͜ͷΑ͏ͳ৔߹Λ૝ఆ͠

ͨ΋ͷͰɺGnd. Line্ʹ༠ಋੑ(L= 0.33µH)ͱ఍

߅ੑΠϯϐʔμϯε(R = 15 Ω)ΛԾఆ͍ͯ͠·͢^*6ɻ

͢ͳΘͪɺe1 =VG(ω)ɺe2 = 0ɺZ3 = (R+jωL)/2ɺ Z6= (R+jωL)/2ɺZ4= 50 ΩɺZ5= 0ͷ৔߹Λܭࢉ

৚݅(Case III)ͱ͠·ͨ͠ɻ

͜ ͷ Α ͏ ʹ ਤ 6 ʹ ࣔ ͢ ఻ ૹ ઢ ࿏ ͸ ୯ ७ ͳ ೋ ઢ ࿏ Ͱ͕͢ɺ࣮͸ਤ 8 ʹࣔ͢Α͏ʹ Gnd. ͸ࡾ൪໨ͷઢ

(Gnd. Line)ͱͯ͠ผʹଘࡏ͢Δ͜ͱʹ஫ҙͯͩ͘͠

͍͞^*7ɻϊΠζݯͱͯ͠͞Βʹe3 ͕Gnd. Line্ʹ ଘࡏ͢Ε͹ɺ΋͸΍P S Gnd.ͱAcc Gnd. ͸ੑ࣭ͷ Α͍ Gnd.Ͱ͸ͳ͘ͳΓ·͢ɻ͜ͷ͜ͱ͸ɺࡾઢ఻ૹ ઢ࿏ʹಛ༗ͳݱ৅ͰGnd.Λ༳Β͢ݪҼͱͳΓɺ͏·

͘ରॲ͠ͳ͍ͱϊΠζੜ੒΍৴߸೾ܗͷ࿪ΈΛҾ͖ى

͜͢ཁҼͱͳΔͷͰ͢ɻCase IIIͷෛՙ഑ஔͷରশੑ

(Z4 = Z5 = 50 Ω)Λ͞Βʹߟྀͨ͠৔߹Λܭࢉ৚݅

(Case IV)ͱ͠·ͨ͠ɻ͜ΕΒ4ͭͷܭࢉ৚݅ΛҎԼʹ

·ͱΊ·͢ɻ

ද1 ࡾຊઢͷ఻ૹઢ࿏ʹ͓͚Δܭࢉྫ. Case Acc Gnd. Gnd. Line Z [Ω]

Ext. Loads Z [Ω]

I ༗ Z3=Z6= 0

Z4= 50,Z5= 0 II ແ Z3= +∞, Z6= 0

Z4= 50,Z5= 0

III ༗ Z3=Z6= (R+jωL)/2

(R= 15 Ω, L= 0.33×10⁻⁶H) Z4= 50,Z5= 0

IV ༗ Z3=Z6= (R+jωL)/2

(R= 15 Ω, L= 0.33×10⁻⁶H) Z4=Z5= 50

Case I–IVʹରԠ͢Δ৴߸఻ૹಛੑͷܭࢉྫ͸ 5અ

ʹࣔ͞Ε·͢ɻ͜͜Ͱಋೖͨ͠౳Ձճ࿏ϞσϧͰ͸ɺ Gnd. Line্ͷ৴߸ݯଆʹZ3ɺ֎෦ෛՙଆʹZ6Λूத ఆ਺ͱͯ͠഑ஔ͍ͯ͠·͢ɻ͔͠͠ɺ࣮ࡍ͸͜ΕΒͷू

தఆ਺Λ෼෍ఆ਺ͱͯ͠෼ࢄͤ͞Δඞཁ͕͋Γ·͢ɻ͜

͜Ͱ͸؆୯ͷͨΊूதఆ਺ͱ͓͖ͯ͠·͢ɻ 4.2. ฏߧෆฏߧճ࿏ʹ͓͚Δ৴߸఻ૹ

ຊઅͰ͸ɺฏߧෆฏߧճ࿏(balanced-unbalanced cir- cuit)ʹ͍ͭͯղઆ͠·͢ɻਤ6ʹࣔ͞Εͨ౳Ձճ࿏͸

*6఍߅ੑΠϯϐʔμϯεʹ͍ͭͯ͸σδϘϧͰ࣮ଌͨ͠఍߅஋Ͱ

͢. ଞํɺલऀ͸LCRϝʔλͰ࣮ଌͨ͠ΠϯμΫλϯεͰ͢

͕ɺप೾਺ଳҬ͕ڱ͍(f≲10 kHz)ͷͰ৴པੑ͸ߴ͋͘Γ·

ͤΜ.

*7චऀ͸౔ذࢯͷߨٛΛฉ͍ͨޙɺॳΊͯ͜ͷߟ͑ΛཧղͰ͖Δ Α͏ʹͳΓ·ͨ͠.