ᩍ㸸⛅ᒣ኱㍜

࠙◊✲άືሗ࿌ࠚ

㻌 㻌

࢚ࢿࣝࢠ࣮ࢩࢫࢸ࣒◊✲ศ㔝㻌

(2015㸬1㹼2015㸬12㸧㻌

䠐䠊᰾✀䛾ᆅ୰⛣⾜䛻ཬ䜌䛩ኳ↛᭷ᶵ≀䛾ᙳ㡪䛾ホ౯

㧗䝺䝧䝹ᨺᑕᛶᗫᲠ≀䜔TRU䜢ྵ䜐ᗫᲠ≀䛾ᆅᒙฎศ䛾Ᏻ඲ホ౯䛻䛚䛔䛶䛿䚸㐲䛔ᑗ᮶䚸㛗༙ῶᮇ䛾 ᨺᑕᛶ᰾✀䛜䜺䝷䝇ᅛ໬య䛛䜙⁐ฟ䛧䚸ᆅୗỈ䜢፹య䛸䛧䛶⏕ែᅪ䜈⛣⾜䛩䜛䝥䝻䝉䝇䛾ホ౯䛜≉䛻㔜せ䛸 䛺䜛䠊ᮏ◊✲䛷䛿䚸ᆅỈᅪ⎔ቃ䛻ᗈỗ䛻ศᕸ䛩䜛⤌ᡂ䛾୙ᆒ㉁䛺㧗ศᏊ᭷ᶵ䝁䝻䜲䝗䛷䛒䜛䝣䝭䞁≀㉁䜢ᑐ㇟

䛸䛧䚸ᨺᑕᛶᗫᲠ≀୰䛾ᨺᑕᛶ᰾✀䛻䛴䛔䛶䚸⁐ᾮ䛾Ph䚸 䜲䜸䞁ᙉᗘ䚸㔠ᒓ䜲䜸䞁⃰ᗘ䛸㘒⏕ᡂ䛸䛾㛵ಀ䜢 ㄪ䜉䚸䛣䜜䜎䛷䛻ᥦ᱌䛧䛶䛝䛯┦஫స⏝䜢୍⯡ⓗ䛻⾲䛩䝰䝕䝹䜢⏝䛔䛶䛾㐺⏝ྍ⬟⠊ᅖ䛚䜘䜃䝰䝕䝹䛾ᨵ Ⰻ䛻䛴䛔䛶᳨ウ䛧䛶䛝䛯䠊ᮏᖺᗘ䛿䛥䜙䛻䚸ኳ↛䝣䝭䞁≀㉁䛸㔠ᒓ䜲䜸䞁䛾㘒⏕ᡂ཯ᛂ䛾཯ᛂ⇕ ᐃ䜢⇕㔞⁲

ᐃ䛻䜘䜚⾜䛔䚸⇕ຊᏛ㔞䠄ᖹ⾮ᐃᩘ䚸䜶䞁䝍䝹䝢䞊䚸䜶䞁䝖䝻䝢䞊䠅䜢Ỵᐃ䛧䚸཯ᛂᶵᵓ䛾⌮ゎ䜢㐍䜑䛯䚹 㻌

䠑䠊㻌䝺䜰䝯䝍䝹䛾⣲ᮦ䝥䝻䝉䝑䝅䞁䜾䛻㛵䛩䜛◊✲

䝺䜰䝯䝍䝹䛾୰䛷䜒䚸౪⤥୙Ᏻᢪ䛘䜛ᕼᅵ㢮䛻䛴䛔䛶䚸㈨※䛾ከᵝ໬䜢┠ᣦ䛧䛯㈨※ฎ⌮䝥䝻䝉䝇䛾㛤Ⓨ

䜢㐍䜑䛶䛔䜛䚹ᮏᖺᗘ䛿䝺䜰䝯䝍䝹䜾䝸䞊䞁䜲䝜䝧䞊䝅䝵䞁䝥䝻䝆䜵䜽䝖䛂ᨺᑕᛶ≀㉁䜢ྵ䜐䝺䜰䝯䝍䝹㈨※䛾䜾䝸 䞊䞁䝥䝻䝉䝇㛤Ⓨ䛻㛵䛩䜛◊✲䛃䜢❧䛱ୖ䛢䚸◲໬཯ᛂ䛻䜘䜛⏕ᡂ≀䛾┦ゎᯒ䛸䚸㓟⁐ゎฎ⌮䛻䛚䛡䜛ྵ᭷

ඖ⣲䛾ᾐฟ⋡䛛䜙⁐ゎᣲື䜢ホ౯䛧䚸䝺䜰䝯䝍䝹ྵ᭷㖔▼䛾ฎ⌮䝥䝻䝉䝇䛸䛧䛶᳨ウ䛧䛯䚹䛥䜙䛻ᮾ໭Ⓨ⣲ᮦ

ඛᑟ䝥䝻䝆䜵䜽䝖䛂ᕼᑡඖ⣲㧗ຠ⋡ᢳฟᢏ⾡㡿ᇦ䛃䛻ཧ⏬䛧䚸⁐⼥ሷ㟁ゎ䛻䜘䜛䝺䜰䝯䝍䝹䛾㧗ᗘ〇㐀䝥䝻䝉䝇 䛾㛤Ⓨ䜢㐍䜑䛶䛔䜛䚹䜎䛯䚸䝺䜰䝯䝍䝹ཎᩱ୰䛻ᚤ㔞䛻ྵ䜎䜜䜛䜰䝹䝣䜯ᨺᑕ⬟㔞䜢ᴟ㝈䜎䛷పῶ䛧䛯ప䜰䝹 䝣䜯ᮦᩱ䛾㛤Ⓨ䜢┠ᣦ䛧䛶䚸ཎᩱ䜔୰㛫⏕ᡂ≀୰䛾䜰䝹䝣䜯ᨺᑕ⬟䛾⢭ᐦ ᐃ䜢⾜䛳䛯䚹

䠒䠊䝣䜱䝹䝍䞊䝗䝧䞁䝖䝅䝇䝔䝮㛤Ⓨ䛻㛵䛩䜛◊✲㻌

㻌⚟ᓥ➨୍ཎᏊຊⓎ㟁ᡤ䛾䜘䛖䛻䚸ཎᏊ⅔ᘓᒇෆ䛾᱁⣡ᐜჾ䛾ෆᅽ䛜ୖ᪼䛩䜛䛸Ỉ⣲⇿Ⓨ➼䛻䜘䛳䛶ཎᏊ

⅔ᘓᒇ䛜ᦆയ䛧䚸䛥䜙䛻ᨺᑕᛶ≀㉁䜢㣕ᩓ䛥䛫䜛஦ែ䛸䛺䜛ྍ⬟ᛶ䛜䛒䜛䚹䛣䛾䜘䛖䛺஦ែ䜢㑊䛡䜛䛯䜑䛾ᡭẁ 䛾୍䛴䛸䛧䛶䚸᱁⣡ᐜჾ䛾ෆᅽୖ᪼᫬䛻䝣䜱䝹䝍䞊䜢㏻䛧䛶ᨺᑕᛶ≀㉁㝖ཤ䛧䛶䛛䜙䝧䞁䝖䛩䜛䚸䝣䜱䝹䝍䞊䝗 䝧䞁䝖䝅䝇䝔䝮䛜䛒䜛䚹ᮏ◊✲䛷䛿䝣䜱䝹䝍䞊䛸䛧䛶䝉䝅䜴䝮䚸䝶䜴⣲䛸䜒䛻྾╔⬟䛾㧗䛔䝊䜸䝷䜲䝖 (AgX)䜢⏝

䛔䚸䛭䛾ᛶ⬟䛾ホ౯䜢㐍䜑䛶䛔䜛䚹௒ᖺᗘ䛿䚸AgX 䛸Ẽయ䛾䝶䜴໬䝯䝏䝹(CH3I)䛸䛾཯ᛂ䜢ホ౯䛩䜛䛯䜑䛭䛾 ᐇ㦂⣔䛾ᵓ⠏䛸䚸ᐇ㝿䛻྾╔ᐇ㦂䜢⾜䛔AgX䛻䛚䛡䜛䝶䜴⣲䛾྾╔㔞䛾ホ౯䜔䚸XRD䜢⏝䛔䛶䝶䜴⣲䛜䛹䛾 䜘䛖䛺໬Ꮫ⣔䛷྾╔䛥䜜䛶䛔䜛䛛䜢᫂䜙䛛䛻䛧䛯䚹

㻌

䠓䠊⚟ᓥཎⓎ஦ᨾ䛻ಀ䜛ᨭ᥼άື㻌

㻌 㻌⚟ᓥ➨୍ཎⓎ஦ᨾ䛻㛵䛧䛶Ἑᕝ䚸ᅵተ➼䛾ᨺᑕ⬟ ᐃ䛸⎔ቃởᰁホ౯䜔䚸Ỉ⪔᱂ᇵ䛻䛚䛡䜛㝖ᰁヨ㦂 䜢⾜䛔䚸⎔ቃಟ᚟䜈䛾ᨭ᥼άື䜢⾜䛳䛯䚹䛥䜙䛻⚟ᓥ䛾ἙᕝỈ䛻ྵ䜎䜜䜛ᠱ⃮≀䜈䛾ᨺᑕᛶ䝉䝅䜴䝮䛾྾

╔䞉⬺╔ᣲື䜢ㄪ䜉䚸཯ᛂᶵᵓ䜢᳨ウ䛧䛯䚹䜎䛯䚸⇞ᩱ䝕䝤䝸䜔㧗ởᰁỈ䛾ฎ⌮䛻㛵䛩䜛኱Ꮫ㛫䛾ඹྠ◊✲

䜢᥎㐍䛩䜛䜋䛛䚸ཎᏊຊᏛ఍䜢㏻䛨䛶䚸ởᰁホ౯䜔㝖ᰁ䛻㛵䛩䜛ㅮ₇఍䜔⎔ቃ┬⎔ቃ㝖ᰁ䝥䝷䝄䛻䛚䛡䜛 䜰䝗䝞䜲䝄䞊➼䛾ᨭ᥼άື䜢⾜䛳䛯䚹

䠔㻚㻌ཎᏊຊேᮦ⫱ᡂ䝥䝻䜾䝷䝮㛤Ⓨ㻌

ཎᏊຊศ㔝䛻䛚䛡䜛◊✲䛚䜘䜃ᢏ⾡䛾⥅ᢎ䛾䛯䜑䛻ேᮦ⫱ᡂ䛜୙ྍḞ䛷䛒䜛䚹᰾⇞ᩱ䝃䜲䜽䝹䛻䛚䛡䜛 ᇶ♏໬Ꮫ䛻㛵䛧䛶䚸ᮾ໭኱Ꮫ䛻䛚䛡䜛ᅜᐙㄢ㢟ᑐᛂᆺ◊✲㛤Ⓨ஦ᴗ䛂ᗫṆᥐ⨨➼ᇶ┙◊✲䞉ேᮦ⫱ᡂ䝥䝻 䜾䝷䝮䛃䜔䚸㡑ᅜ⛉Ꮫᩍ⫱㈈ᅋ䛸䛾”Nuclear Fuel Cycle Training Course”䜢ᐇ᪋䛧䛯䚹

࠙◊✲άືሗ࿌ࠚ 㟁ᏊศᏊືຊᏛ◊✲ศ㔝 ^䠄

2015

䠊

1

䡚

2015

䠊

12

䠅㻌

ᩍ ᤵ㻌 㻦㻌 ୖ⏣㻌 ₩㻌

ຓ ᩍ㻌 㻦 ዟす ࡳࡉࡁ, ⚟⃝ ᏹᐉ㻌

⏘Ꮫᐁ㐃ᦠ◊✲ဨ : ᮏᮧ ᖾ἞, ⇃㇂ ჆᫭

ᩍ⫱◊✲ᨭ᥼⪅ : Iablonskyi Denys

኱ Ꮫ 㝔 ⏕㻌 㻦㻌 ఀ⸨㻌 㞝ኴ(D2), 㧘᲍㻌 ྖ(D2)㻘㻌 ᴬཎ㻌 㞝ኴ(M2), 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌You Daehyun(M1), Maliyar Gianluigi(B4)㻌

≉ ู ⫈ ㅮ Ꮫ ⏕䠖㻌 㻌Kent Kristie Chandalar㻌

㻌 㻌 㻌

㻌

ᮏ◊✲ศ㔝䛷䛿Ꮩ❧ཎᏊ䞉ศᏊ䞉䜽䝷䝇䝍䞊䛻䛚䛡䜛㟁ᏊศᏊ䝎䜲䝘䝭䜽䝇䛸ไᚚ䛻㛵䛩䜛䛻䛴䛔䛶◊✲ά

ື䜢⾜䛳䛶䛔䜛䚹2015 ᖺ䛾◊✲άື䛸䛧䛶䛿䠈௨ୗ䛾䜘䛖䛻ᴫᣓ䛥䜜䜛䚹 㻌

㻝㻚㻌 㧗ᙉᗘ䝟䝹䝇䝺䞊䝄䞊䜢⏝䛔䛯䛔䝧䞁䝊䞁ศᏊ䛾䝺䞊䝄䞊ບ㉳෌ᩓ஘㟁Ꮚศග䛸ศᏊᵓ㐀Ỵᐃ䛻㛵䛩 䜛◊✲㻌

䝣䜵䝮䝖⛊䜸䞊䝎䞊䛷䛾ศᏊ䛾ᵓ㐀ኚ໬䜢ᤊ䛘䜛 䛯䜑䛾᪂䛧䛔㟁Ꮚᩓ஘ᐇ㦂ᡭἲ䜢ᵓ⠏䛩䜛䛣䛸䜢┠

ᶆ䛸䛧䛶䚸㧗ᙉᗘ䝺䞊䝄䞊୰䛾ศᏊ䛾䜲䜸䞁໬䛻䜘䜚 ᨺฟ䛥䜜䜛㟁Ꮚ䛸䛭䛾㟁Ꮚ䜢ᨺฟ䛧䛯ศᏊ䜲䜸䞁䛸䛾 ᙉ䝺䞊䝄䞊ሙ୰䛷䛾෌⾪✺㐣⛬䛻䜘䜚ᩓ஘䞉ᨺฟ䛥䜜 䛯෌ᩓ஘㟁Ꮚ䛾ᨺฟゅᗘศᕸ䛾 ᐃ䛛䜙ศᏊᵓ㐀 䜢Ỵᐃ䛩䜛ᡭἲ䛾㛤Ⓨ䜢㐍䜑䛶䛔䜛䚹

ᮏ◊✲䛷䛿䝧䞁䝊䞁ศᏊ䜢䝍䞊䝀䝑䝖ศᏊ䛸䛧䛶䚸

Ἴ㛗

1650 nm

䛾㧗ᙉᗘ㉥እ䝣䜵䝮䝖⛊䝺䞊䝄䞊䝟䝹

䝇䜢ศᏊ䛻㞟ග䛧䚸ᨺฟ䛥䜜䜛෌ᩓ஘㟁Ꮚ䛾䝺䞊䝄䞊 㟁ሙ䛾೫ග᪉ྥ䛻ᑐ䛩䜛✵㛫㐠ື㔞ศᕸ䜢 ᐃ䛧䛯䚹 ᚓ䜙䜜䛯㟁Ꮚ䝇䝨䜽䝖䝹䛛䜙㟁Ꮚ䛸䝧䞁䝊䞁䜲䜸䞁䛾 ᚤศ⾪✺᩿㠃✚䜢ᢳฟ䛧䚸᭦䛻ᢳฟ䛧䛯ᚤศ᩿㠃✚

䜢㟁Ꮚᅇᢡ䛾ゎᯒ䛷⏝䛔䜙䜜䜛ศᏊᩓ஘ᙉᗘ䛻㟁Ꮚ 㐠ື㔞⛣⾜㔞䛾㛵ᩘ䛻ኚ᥮䛧䛯䚹䛣䜜䜢⌮ㄽィ⟬䛸 ẚ㍑䛩䜛䛣䛸䛷ศᏊ䛾ᵓ㐀䛜Ỵᐃ䛷䛝䜛䛣䛸䜢♧䛧䛯 䠄ྑᅗཧ↷䠅䚹

ᮏ◊✲䛿୰ᅜ䞉ྜྷᯘ኱Ꮫ䛚䜘䜃⡿ᅜ

Kansas

ᕞ❧

኱Ꮫ䛸䛾ඹྠ◊✲䛷䛒䜛䚹

[1.1]㻌Y. Ito, C. Wang, Anh-Thu Le, M. Okunishi, D. Ding, C. D. Lin, and K. Ueda, submitted.

ᅗ1-1 䝧䞁䝊䞁ศᏊ䛾෌ᩓ஘㟁Ꮚ䛾✵㛫㐠ື㔞ศᕸ䛛 䜙ᢳฟ䛧䛯ᚤศ᩿㠃✚䜘䜚ồ䜑䛯ศᏊᩓ஘ᙉᗘ䠄䕕䠅䛸⊂

❧ཎᏊ䝰䝕䝹䛷ィ⟬䛧䛯ศᏊᩓ஘ᙉᗘ䠄ᐇ⥺䠅䛾㟁Ꮚ䛾

⾪✺㐠ື㔞䛜p=2.0 a.u. 䠄ཎᏊ༢఩䠅䛾᫬䛾ᅗ䚹㉥⥺䛿 ཎᏊ㛫㊥㞳䜢䝟䝷䝯䞊䝍䛸䛧䛯䝣䜱䝑䝔䜱䞁䜾䛾⤖ᯝ䚹㟷䛾

Ⅼ⥺䛿ศᏊ䛾ᇶᗏ≧ែ䛾᰾㛫㊥㞳䛻ᅛᐃ䛧䛯䛸䛝䛾ィ⟬

⤖ᯝ䚹

2.㻌XFEL䝫䞁䝥-NIR䝥䝻䞊䝤ἲ䛸䝅䝵䝑䝖ẖ䞉ග䝟䝹䝇฿㐩᫬้ ᐃ䛻䜘䜛㉸㧗㏿᫬ศ๭ィ 

䝣䜵䝮䝖⛊䠄10^–15⛊䠅䝺䝧䝹䛾ᴟ▷䝟䝹䝇㉸㧗㍤ᗘX⥺ග※䛷䛒䜛X⥺⮬⏤㟁Ꮚ䝺䞊䝄䞊䠄XFEL䠅䛸ගᏛ䝺 䞊䝄䞊䛾஧✀㢮䛾䝟䝹䝇ග䜢⤌䜏ྜ䜟䛫䛯䝫䞁䝥䞉䝥䝻䞊䝤ィ ἲ䛻䜘䜚䚸≀㉁ෆ㒊䛾ᵓ㐀ኚ໬䜔໬Ꮫ཯ᛂ 䛸䛔䛳䛯㉸㧗㏿⌧㇟䜢䚸ཎᏊ䜔㟁Ꮚ䝺䝧䝹䛷ゎ᫂䛷䛝䜛䛸ᮇᚅ䛥䜜䛶䛔䜛䚹ᮏ◊✲䛷䛿䚸㉸㧗㏿᫬ศ๭ィ  䛻䜘䜚䚸ഹ䛛ᩘ䝣䜵䝮䝖䛛䜙ᩘ10䝣䜵䝮䝖⛊䛷㉳䛣䜛ཎᏊ㐣⛬䛾᳨ฟ䜢ヨ䜏䛯䚹

ᐇ㦂䛿SACLA䛾䝡䞊䝮䝷䜲䞁3ᐇ㦂䝝䝑䝏4䛷⾜䛳䛯䚹཯ᛂ┿✵ᵴෆ䛻䛶䚸ගᏊ䜶䝛䝹䜼䞊5.5 keV䚸䝟

䝹䝇ᖜ10 fs䠄FWHM䠅௨ୗ䛾XFEL䛸䚸ගᏊ䜶䝛䝹䜼䞊1.55 eV䠄Ἴ㛗800 nm䠅䚸䝟䝹䝇ᖜ ~30 fs䠄FWHM䠅䛾

㏆㉥እ䠄NIR䠅䝺䞊䝄䞊 䜢䜻䝉䝜䞁ཎᏊ䜈↷ᑕ䛧䚸ᨺฟ䛥䜜䜛䜲䜸䞁䛾㣕⾜᫬㛫䝇䝨䜽䝖䝹䜢XFEL䝟䝹䝇䛻ᑐ 䛩䜛NIR䝺䞊䝄䞊䝟䝹䝇䛾฿㐩᫬㛫ᕪ䛾㛵ᩘ䛸䛧䛶 ᐃ䛧䛯䚹ᶆⓗヨᩱ䛻ᑐ䛩䜛XFEL䝟䝹䝇䛸ගᏛ䝺䞊䝄 䞊䝟䝹䝇䛾฿㐩᫬㛫ᕪ䜢䝣䜵䝮䝖⛊䛾⢭ᗘ䛷ไᚚ䛩䜛䛣䛸䛿㞴䛧䛟䚸䝅䝵䝑䝖ẖ䛾฿㐩᫬㛫ᕪ䛻600䝣䜵䝮䝖⛊

⛬ᗘ䛾ᦂ䜙䛞䛜Ꮡᅾ䛩䜛䚹ᮏ◊✲䛷䛿䚸SACLA䛾䝡䞊䝮䝷䜲䞁䛻ᖖタ䛥䜜䛯䜰䝷䜲䝞䝹䝍䜲䝭䞁䜾䝰䝙䝍䞊䛻䜘 䜚䚸䠎䛴䛾䝺䞊䝄䞊䝟䝹䝇䛾฿㐩᫬㛫ᕪ䜢䝅䝵䝑䝖ẖ䛻 ᐃ䛩䜛䛣䛸䛷฿㐩᫬㛫ᕪ䜢⿵ṇ䛧䚸ᩘ10䝣䜵䝮䝖⛊䛾

᫬㛫ศゎ⬟䜢㐩ᡂ䛧䛯䚹

ᅗ2-1 䛻䜻䝉䝜䞁ཎᏊ䛾ẁ㝵ⓗX⥺ከගᏊ྾཰ከ㔜䜲䜸䞁໬䛻䜘䜚⏕ᡂ䛩䜛ከ౯䜲䜸䞁䠄Xe¹³⁺䠅䛾཰㔞䜢

฿㐩᫬㛫ᕪ䛾㛵ᩘ䛸䛧䛶♧䛧䛯䚹฿㐩᫬㛫ᕪ䝊䝻

௜㏆䛻䛚䛔䛶Xe¹³⁺䜲䜸䞁཰㔞䛾ቑຍ䛜ほ 䛥䜜䛯䚹 䛣䜜䛿䚸䜻䝉䝜䞁ཎᏊ䛾LẆග䜲䜸䞁໬䛻ᘬ䛝⥆䛝

㉳䛣䜛䜸䞊䝆䜵㐣⛬䛾㏵୰䛷䚸Xeⁿ⁺䠄n< 13䠅䜲䜸䞁 䛜NIR䝺䞊䝄䞊䛻䜘䜚䛥䜙䛻ග䜲䜸䞁໬䛥䜜䚸Xe¹³⁺

䜲䜸䞁཰㔞䛜ቑຍ䛧䛶䛔䜛䛸⪃䛘䜙䜜䜛䚹ᮏ◊✲䛷 䛿㉸㧗㏿᫬ศ๭ィ 䛻䜘䜚䚸ഹ䛛ᩘ䝣䜵䝮䝖䛛䜙ᩘ

10䝣䜵䝮䝖⛊䛷㉳䛣䜛䜻䝉䝜䞁ཎᏊ䛾X⥺྾཰䛻䜘 䜛LẆග䜲䜸䞁໬䛚䜘䜃䜸䞊䝆䜵㐣⛬䛸䛔䛖୍㐃䛾

㉸㧗㏿㐣⛬䜢ᤊ䛘䜛䛣䛸䛻ᡂຌ䛧䛯䚹䛥䜙䛻䚸䛣䛾฿

㐩᫬㛫ᕪ䛻ᑐ䛩䜛Xe¹³⁺䜲䜸䞁཰㔞䛾ቑຍ䛛䜙䚸 XFEL䝟䝹䝇䛚䜘䜃NIR䝺䞊䝄䞊䝟䝹䝇䛾฿㐩᫬

㛫ᕪ䛾᫬㛫ཎⅬ䜢㼼20 fs䛾᫬㛫⢭ᗘ䛷Ỵ䜑䜛䛣䛸 䛻ᡂຌ䛧䛯䚹

ᮏ◊✲䛿䚸ி㒔኱Ꮫ䚸ᗈᓥ኱Ꮫ䚸⌮໬Ꮫ◊✲ᡤ䚸 㧗㍤ᗘග⛉Ꮫ◊✲䝉䞁䝍䞊䚸䝇䜴䜵䞊䝕䞁䚸䝣䝷䞁 䝇䚸䝗䜲䝒䚸୰ᅜ➼䛸䛾ᅜ㝿ඹྠ◊✲䛷䛒䜛䚹

[2.1]㻌Y. Kumagaiet al., to be published.

ᅗ2-1 XFEL䝟䝹䝇䛻ᑐ䛩䜛NIR䝟䝹䝇䛾฿㐩᫬㛫ᕪ䛾㛵ᩘ䛸

䛧䛶䝥䝻䝑䝖䛧䛯Xe¹³⁺䜲䜸䞁཰㔞䚹㟷᭤⥺䛷♧䛧䛯䝣䜱䝑䝔䜱䞁䜾 䛻䜘䜚䚸฿㐩᫬㛫ᕪ䛾᫬㛫ཎⅬ䠄㉥◚⥺䠅䜢Ỵᐃ䛧䛯䚹㻌

í í í í 0 200 400 600 800

XFELࣃࣝࢫ í1,5 ࣃࣝࢫ ฿㐩᫬㛫ᕪ (fs) X e

13+

࢖ ࢜ ࣥ ཰ 㔞 (a rb . un it )

Xe

¹³⁺

3.㻌⮬⏤㟁Ꮚ䝺䞊䝄䞊䜢⏝䛔䛯᫬ศ๭ィ 䛻䜘䜛䝛䜸䞁஧㔞య䛾ཎᏊ㛫䜽䞊䝻䞁⦆࿴㐣⛬䛻㛵䛩䜛◊✲

ཎᏊ㛫䜽䞊䝻䞁⦆࿴䠄Interatomic Coulombic Decay; ICD䠅㐣⛬䛸䛿䚸㟁Ꮚⓗບ㉳≧ែ䛻䛒䜛ཎᏊ䜔ศᏊ䛜

㏆᥋䛧䛯௚䛾ཎᏊ䛻䜶䝛䝹䜼䞊䜢⛣⾜䛧䛶䚸㟁Ꮚ䜢ᨺฟ䛥䛫䜛䛣䛸䛷⬺ບ㉳䛩䜛㐣⛬䛷䛒䜚䚸1997ᖺ䛻⌮ㄽⓗ

䛻ᥦ᱌䛥䜜䛯[Phys. Rev. Lett. 79, 4778, (1997)]䚹㏆ᖺ䛿䚸⏕యෆ➼䛾⎔ቃ୰䛻⨨䛛䜜䛯ཎᏊ䜔ศᏊ䛾㔜せ 䛺⦆࿴ᶵᵓ䛸䛧䛶䚸ᐇ㦂䞉⌮ㄽ䛾୧㠃䛷⢭ຊⓗ䛻◊✲䛜⾜䜟䜜䛶䛔䜛䛜䚸䛣䛾㐣⛬䜢ᐇ᫬㛫䛷ィ 䛧䛯◊✲

౛䛿䜟䛪䛛䛷䛒䜚[Phys. Rev. Lett. 111, 093402, (2013)]䚸䜘䜚ヲ⣽䛺▱ぢ䜢ᚓ䜛䛣䛸䛜ㄢ㢟䛸䛺䛳䛶䛔䜛䚹 2013 ᖺ䛻䚸ᴟ⣸እග䛾஧ගᏊ྾཰䛷⏕ᡂ䛩䜛䝛䜸䞁஧㔞య䛾஧㟁Ꮚບ㉳≧ែ䜢ጞ≧ែ䛸䛩䜛 ICD 㐣⛬

䛾Ꮡᅾ䛜⌮ㄽⓗ䛻ண 䛥䜜䚸䛭䛾㏿ᗘ䛜200䝣䜵䝮䝖⛊⛬ᗘ䛸ィ⟬䛥䜜䛯[J. Phys. B: At. Mol. Opt. Phys. 46, 021102, (2013)]䚹䜲䝍䝸䜰䛻䛒䜛⮬⏤㟁Ꮚ䝺䞊䝄䞊䠄Free Electron Laser; FEL䠅᪋タFERMI䛷䛿䚸䛣䛾஧㟁Ꮚ ບ㉳≧ែ䛾⏕ᡂ䛻༑ศ䛺䜋䛹䛾኱ᙉᗘᴟ⣸እග䜢䚸100䝣䜵䝮䝖⛊䜢ษ䜛㉸▷䝟䝹䝇䛷ᚓ䜛䛣䛸䛜䛷䛝䜛䚹䛭䛣 䛷䚸ᡃ䚻䛿FERMI䛾ᴟ⣸እFEL䛸⣸እ䝣䜵䝮䝖⛊䝺䞊䝄䞊䜢⤌䜏ྜ䜟䛫䛯䝫䞁䝥䞉䝥䝻䞊䝤ィ 䛻䜘䜚䚸䝛䜸 䞁஧㔞య䛾஧㟁Ꮚບ㉳≧ែ䜢ጞ≧ែ䛸䛩䜛ICD㐣⛬䛾᫬㛫ศゎ ᐃ䜢ヨ䜏䛯[3.1]䚹

ᐇ㦂䛿FERMI䛾Low Density Matter䜶䞁䝗䝇䝔䞊䝅䝵䞁䛷⾜䛳䛯䚹཯ᛂᵴ䛻䝟䝹䝇ᑟධ䛥䜜䛯䝛䜸䞁஧㔞 య䛻ᑐ䛧䛶䚸䝟䝹䝇ᖜ70䝣䜵䝮䝖⛊⛬ᗘ䛾FEL䝟䝹䝇䜢30ȝm⛬ᗘ䛻㞟ග䛧䛶↷ᑕ䛧䚸⏕ᡂ䛥䜜䛯䜲䜸䞁䜢㣕

⾜᫬㛫ᆺ䝬䝇䝇䝨䜽䝖䝻䝯䞊䝍䞊䛷 ᐃ䛧䛯䚹

FEL䛾ගᏊ䜶䝛䝹䜼䞊䜢ᤲᘬ䛧䛶䝛䜸䞁஧㔞య䜲䜸䞁䛾཰㔞䜢ィ 䛩䜛䛸䚸ගᏊ䜶䝛䝹䜼䞊16.39 eV䛻䛚 䛔䛶䜲䜸䞁཰㔞䛜ᴟ኱䜢♧䛧䛯䚹 ᚓ䜙䜜䛯䜲䜸䞁཰㔞᭤⥺䛾ᴫᙧ䛸䝢䞊䜽఩⨨䛿⌮ㄽィ⟬⤖ᯝ䛸୍⮴䛧䛶䛚 䜚䚸䝛䜸䞁஧㔞య䛾஧㟁Ꮚບ㉳≧ែ䜢ึ䜑䛶⏕ᡂ䛩䜛䛣䛸䛻ᡂຌ䛧䛯䚹䛣䛾⤖ᯝ䛿஧㟁Ꮚບ㉳≧ែ䜢ጞ≧ែ

䛸䛩䜛ICD㐣⛬䛾Ꮡᅾ䜢♧䛧䛶䛚䜚䚸䛥䜙䛻ᮏ㐣⛬䛾᫬㛫ศゎ ᐃ䜢ヨ䜏䛯䚹FEL䝟䝹䝇䜢䝫䞁䝥ග䛸䛧䚸䛣䜜 䛸ྠᮇ䛧䛯ගᏊ䜶䝛䝹䜼䞊4.75 eV䚸䝟䝹䝇ᖜ230䝣䜵䝮䝖⛊⛬ᗘ䛾⣸እ䝺䞊䝄䞊䜢䝥䝻䞊䝤ග䛸䛧䛶⏝䛔䛯䚹

ᅗ3-1䛻䝛䜸䞁஧㔞య䜲䜸䞁཰㔞䜢䚸FEL䝟䝹䝇䛻ᑐ䛩䜛⣸እ䝺䞊䝄䞊䝟䝹䝇䛾㐜ᘏ᫬㛫䛾㛵ᩘ䛸䛧䛶  ᐃ䛩䜛䛣䛸䛷ᚓ䜙䜜䛯䜲䜸䞁཰㔞䛾㐜ᘏ᫬㛫౫Ꮡᛶ䜢♧䛩䚹ᅗ3-1䜘䜚䚸FEL䛸⣸እ䝺䞊䝄䞊䛾㐜ᘏ᫬㛫䛜0 䛾௜㏆䛷䝛䜸䞁஧㔞య཰㔞䛾ῶᑡ䛜ぢ䜙䜜䜛䚹㐜ᘏ᫬㛫䛜ṇ䛾㡿ᇦ䛷ᴟᑠ䛛䜙෌䜃཰㔞䛾ቑຍ䛜ぢ䜙䜜䚸䛣 䛾㡿ᇦ䛻ICD㐣⛬䛾㏿ᗘ䛻㛵䛩䜛᝟ሗ䛜ྵ䜎

䜜䜛䚹ᐇ㦂䛷⏝䛔䛯FEL䛸⣸እ䝺䞊䝄䞊䛾䝟䝹 䝇ᖜཬ䜃ᙉᗘ䜢ྲྀ䜚ධ䜜䛯⌮ㄽィ⟬䜢⾜䛖䛸䚸ᚓ 䜙䜜䛯⌮ㄽ᭤⥺䠄ᅗ୰㟷⥺䠅䛸 ᐃ⤖ᯝ䛿䜘䛟୍

⮴䛧䛯䚹

ᮏ◊✲䛿䚸ி㒔኱Ꮫ䚸䜲䝍䝸䜰䚸䝗䜲䝒䚸䝇䜴䜵 䞊䝕䞁䚸䜰䝯䝸䜹䛸䛾ᅜ㝿ඹྠ◊✲䛷䛒䜛䚹

[3.1] T. Takanashi et al., to be published.

ᾉยܭໜ ᾉྸᛯ୺ዴ

-1000 -500 0 500 1000 1500

0.80 0.85 0.90 0.95 1.00 1.05

࢖࢜ࣥ཰㔞 [arb. unit]

FEL࡟ᑐࡍࡿ⣸እ࣮ࣞࢨ࣮ࡢ㐜ᘏ᫬㛫 [ࣇ࢙࣒ࢺ⛊]

ᅗ3-1. 䝛䜸䞁஧㔞య䜲䜸䞁཰㔞䛾㐜ᘏ᫬㛫౫Ꮡᛶ䛸⌮ㄽ᭤⥺

࠙◊✲άືሗ࿌ࠚ 㔞Ꮚ㟁Ꮚ⛉Ꮫ◊✲ศ㔝㻌 ^䠄

2015

䠊

1

䡚

2015

䠊

12

䠅

ᩍ ᤵ㧘ᶫṇᙪ

ドキュメント内 研究業績・活動報告2015 (ページ 53-58)