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BL-16B ታ㛎ᚻᴺߩࡆࡓࠗࡦߣߩㆡวᕈ⎇ⓥᚑᨐߦߟߡ ࡆࡓࠗࡦታ㛎ⵝ⟎ ⹏ቯ ̪㧦శḮࡦࠗࡓࡆޔశቇ♽ߣ⎇ⓥᚻᴺߪㆡวߒߡࠆ߆ޕ ⹏ଔᆔຬฬ 㔚ሶ‛ᕈಽ⑼ ࡆࡓࠗࡦฬ BL16B BL-16B ࡆࡓࠗࡦᜂᒰ⠪ฬ ⺖㗴ᢙ ߿߿ㆊᄙ ᷙ㔀ᐲ 1.5 ߆ࠄ㧞 ਥߥ⎇ⓥᚻᴺ ⎇ ޔa ᄙ⋡⊛ߢࠆߩߢ⸥ㅀ ⓥಽ㊁ߣࡆࡓ ਇ⢻ ࠗࡦᜂᒰ⠪ߩ⟎ b ઃߌ ⿷┙⚐৻ ᚻᴺ a ಽ㊁ࠍ࠼ޔಽ㊁ߩਛᩭޔಽ㊁ߩ৻ੱޔಽ㊁ᄖ ಽ㊁ࠍ࠼ޔಽ㊁ߩਛᩭޔಽ㊁ߩ৻ੱޔಽ㊁ᄖ ㆡวᕈ㧔̪1㧕 4. ㆡಾ ⎇ⓥᚑᨐ 4. 㜞 ㆡಾߥᚻᴺߣ ߊߺวࠊߖࠇ ߫㜞ᚑᨐ߇ ࠦࡔࡦ࠻ޔિ ᓧࠄࠇࠆ ߫ߔߴ߈ὐޔ ᡷༀߔߴ߈ὐ ಽ㊁ࠍ࠼ޔಽ㊁ߩਛᩭޔಽ㊁ߩ৻ੱޔಽ㊁ᄖ c ࡆࡓࠗࡦߩᕈ⢻╬ߦߟߡ ㆡಾߦޔᢛߐࠇߡߴࠆ᧪ᧄޔ ߈ᕈ⢻ࠍ⊒ើߒߡࠆ߆ 2 ᡷༀߩ ࠅ ขᛒߪኈᤃ߆ 2 ߿߿㔍 ขᛒ⺑ᦠߪᢛߐࠇߡࠆ߆ 28 − − 30 ᕈ⢻᭽╬ߢ․⸥ ߔߴ߈ὐઁޔᣉ⸳ߣ Ყセߒߡ․⸥ߔߴ߈ ὐ ᡷ⦟ᡷༀߔߴ߈ὐ ᚻᴺ b 3 ᥉ㅢ BL16B ߪ 40 ~ 550 eV ߩ⋥✢శశ߇ᓧࠄࠇࠆࠕࡦࠫࡘ࠲ࡆࡓࠗࡦ ߢࠆޕ40 㨪 250 eV ߩ㗔ၞߦ߅ߡޔ࿖ౝߢߪᦨ߽ᒝశ߇ᓧࠄࠇࠆޕಽሶߩബ ⁁ᘒ߅ࠃ߮ߎߩ㗔ၞߦๆ┵ࠍᜬߟర⚛ (Mg ~ Ar L Ზㆫ⒖㊄ዻ M Ზߥߤ) ࠍ ⹜ᢱᏗ⭯⹜ᢱߦ㑐ߔࠆ㜞ᐲߥታ㛎ߦㆡߒߡࠆޕ BL16B ߦᏱ⸳ታ㛎ⵝ⟎ߪߥޕห↪ታ㛎ߦ߅ߡߪޔฦታ㛎⠪߇ታ㛎ⵝ⟎ࠍᜬ ߜㄟߺޔታ㛎ࠍⴕ߁ࠃ߁ߦߥߞߡࠆޕ 40 㨪 250 eV ߩࠛࡀ࡞ࠡ㗔ၞߦ߅ߡ࿖ౝߢᦨ߽ᒝశ߇ᓧࠄࠇࠆ BL ߢࠆ ߇ޔᶏᄖߩ╙ 3 ઍ VUV శᣉ⸳ߣᲧセߔࠆߣഠࠅ߇ߔࠆޕಽశེߩᡷ⦟ߛߌߢ ߪޔ⊛ߥᡷༀߪ࿎㔍ߢࠆޕᲑ㓏ߢߪޔห↪ታ㛎ߦ߅ߡᕈ⢻ࠍలಽᵴ߆ߒ ߚታ㛎ࠍല₸ࠃߊⴕ߁ߎߣ߇ߢ߈ࠆࠃ߁ޔታ㛎ࠍᡰេߔࠆᯏེߥߤߩᢛࠍㅴࠆᔅ ⷐ߇ࠆߣ⠨߃ߡࠆޕ ೨⟎㏜ᓟ⟎㏜ߩ⺞ᢛࠍ◲⚛ൻߔࠆߎߣ߇ᔅⷐߢࠆߪߢ⁁ޕಽశེ߆ࠄߩశߩ ࠬ࡞ࡊ࠶࠻߇ߒ߫ߒ߫ᄌൻߒߡߒ߹ߞߡࠆޔߚߩߎޕ೨⟎㏜ᓟ⟎㏜ࠍߘࠇߦ ᔕߓߡ⺞ᢛߔࠆᔅⷐ߇↢ߓߡࠆߩ࠻࠶ࡊ࡞ࠬޔߕ߹ޕᄌൻߩේ࿃ࠍ⏕ߦߔࠆߚ ࡦࠗࡓࡆޔߦశ⟎ߩࡕ࠾࠲ࠍ⸳⟎ߔࠆᔅⷐ߇ࠆޔߚ߹ޕశḮ゠ߩ ࠭ߩᄢ߈ߐ߇ਇนㆱߥࡌ࡞ߦࠆߩߢࠇ߫ޔኻᔕߢ߈ࠆࠃ߁ߦ೨⟎㏜ᓟ⟎㏜ ߩ⺞ᢛ߇࡙ࠩߦ߽ኈᤃߦⴕ߁ߎߣ߇ߢ߈ࠆࠃ߁ߦߔࠆᔅⷐ߇ࠆޕޔ೨⟎㏜ ߩ⺞ᢛߪᲧセ⊛ኈᤃߢࠆ߇ޔᓟ⟎㏜ߩ⺞ᢛߪ࿎㔍ߢࠆޕ ᚻᴺ c ㆡวᕈ㧔̪1㧕 5. ᦨㆡ 4. ㆡಾ 3. ᅷᒰ 2. ߿߿ਇㆡ 1. ਇㆡ ⎇ⓥᚑᨐ 4. 㜞 3. ᅷᒰ 2. ߿߿ૐ 1. ૐ ㆡวᕈ㧔̪1㧕 5. ᦨㆡ 4. ㆡಾ 3. ᅷᒰ 2. ߿߿ਇㆡ 1. ਇㆡ ⎇ⓥᚑᨐ 4. 㜞 3. ᅷᒰ 2. ߿߿ૐ 1. ૐ ࠦࡔࡦ࠻ޔિ ߫ߔߴ߈ὐޔ ᡷༀߔߴ߈ὐ 5 ᭂߡ㜞 ࠦࡔࡦ࠻ޔિ ߫ߔߴ߈ὐޔ ᡷༀߔߴ߈ὐ ⎇ⓥᚑᨐ ✚ว⹏ଔ 5 ᭂߡ㜞 ⇇ߩ⁁ᴫߣ Ყセߒߡߩ⹏ ଔࡓࡆޔ ࠗࡦᕈ⢻߇ᓞ ㅦߣߥߞߡ ࠆ႐วߪߘߩ ᜰ៰ 4. 㜞 ᄙ⋡⊛ࡆࡓࠗࡦߣߒߡ↪ߐࠇߡࠆߚޔᚻᴺߦࠃࠆಽ㘃ࠍⴕ߁ߎ ߣߪߢ߈ߥޕ BL16B ߢⴕࠊࠇߚ⎇ⓥࠍಽ㘃ߔࠆߣޔේሶ‛ℂಽሶಽశ㗼ᓸಽశ 㕙ๆ⌕♽‛ᕈ㊂ሶశቇߩಽ㊁ߩ⎇ⓥ߇ࠆޕ ߎࠇ߹ߢޔᵴ⊒ߦታ㛎߇ⴕࠊࠇᄙߊߩᚑᨐ߇ᓧࠄࠇߡࠆߩߪޔේሶ‛ℂ ಽሶಽశߩಽ㊁ߢࠆޕේሶߦ㑐ߔࠆ 1 శሶᄙ㔚ሶ㔚㔌ㆊ⒟ߩಽశቇ࠳ࠗ ࠽ࡒࠢࠬߦ㑐ߒߡߪޔ⇇⊛ߦ߽వ㚟⊛ߥᚑᨐ߇ᓧࠄࠇߡࠆޕ ߘߩઁߩಽ㊁ߢߪߢ߹ࠇߎޔห↪⠪߇߹ࠅᄙߊߥ߆ߞߚ߇ᦨޔㄭ Ⴧടะߦࠆߩࠄࠇߎޕಽ㊁ߩታ㛎ߦߟߡ߽ޔBL ᕈ⢻ߪᕈ⢻ߪᓞㅦߦߥ ߞߡߥߣ⠨߃ߡࠆޕ ᓟߐࠄߦᚑᨐࠍߍߡߊߚߦߪࠅࠃޔ㐳ᦼߩࡆࡓ࠲ࠗࡓࠍ⏕ߔ ࠆߛߌߢߥߊޔല₸ࠃߊࡆࡓ࠲ࠗࡓࠍ↪ߢ߈ࠆࠃ߁ߦߔࠆᔅⷐ߇ࠆޕ ታ㛎ⵝ⟎ߩᕈ⢻╬ߦߟߡ ↪ߒߡࠆታ㛎ⵝ⟎ฬ(a) ↪ߒߡࠆታ㛎ⵝ⟎ฬ(c) Ᏹ⸳ߩታ㛎ⵝ⟎ߥߒ ㆡಾߦޔᡷༀߐࠇߡ߈ߴࠆ᧪ᧄޔᕈ⢻ࠍ 5 ࡈ ࡞ ᕈ 4 ߶ ߷ ᕈ 3 ߹ ᕈ 2 ᡷ ༀ ߩ 1 ᡷ ༀ ߇ ⊒ើߒߡࠆ߆ ⢻ࠍ⊒ើ ⢻ࠍ⊒ើ ⢻ࠍ⊒ើ ࠅ ᔅ㗇 ㆡಾߦޔᡷༀߐࠇߡ߈ߴࠆ᧪ᧄޔᕈ⢻ࠍ 5 ࡈ ࡞ ᕈ 4 ߶ ߷ ᕈ 3 ߹ ᕈ 2 ᡷ ༀ ߩ 1 ᡷ ༀ ߇ ⊒ើߒߡࠆ߆ ⢻ࠍ⊒ើ ⢻ࠍ⊒ើ ⢻ࠍ⊒ើ ࠅ ᔅ㗇 ขᛒߪኈᤃ߆ 5. ኈᤃ 4.߿߿ኈᤃ 3. ᥉ㅢ 2. ߿߿㔍 1. 㔍 ขᛒߪኈᤃ߆ 5. ኈᤃ 4.߿߿ኈᤃ 3. ᥉ㅢ 2. ߿߿㔍 1. 㔍 ขᛒ⺑ᦠߪᢛߐࠇߡࠆ߆ 5. లታ 4.߿߿లታ 3. ᥉ㅢ 2.߿߿ਇ⿷ 1. ߥ ขᛒ⺑ᦠߪᢛߐࠇߡࠆ߆ 5. లታ 4.߿߿లታ 3. ᥉ㅢ 2.߿߿ਇ⿷ 1. ߥ ᕈ⢻ޔ᭽╬ߢ․⸥ ߔߴ߈ὐ ᕈ⢻ޔ᭽╬ߢ․⸥ ߔߴ߈ὐ ᡷ⦟ᡷༀߔߴ߈ὐ ᡷ⦟ᡷༀߔߴ߈ὐ ᓟߩࡆࡓࠗࡦߩࠅᣇߦߟߡ − 29 31 − ↪ߒߡࠆታ㛎ⵝ⟎ฬ(b) ㆡಾߦޔᡷༀߐࠇߡ߈ߴࠆ᧪ᧄޔᕈ⢻ࠍ 5 ࡈ ࡞ ᕈ 4 ߶ ߷ ᕈ 3 ߹ ᕈ 2 ᡷ ༀ ߩ 1 ᡷ ༀ ߇ ⊒ើߒߡࠆ߆ ⢻ࠍ⊒ើ ⢻ࠍ⊒ើ ⢻ࠍ⊒ើ ࠅ ᔅ㗇 ขᛒߪኈᤃ߆ 5. ኈᤃ 4.߿߿ኈᤃ 3. ᥉ㅢ 2. ߿߿㔍 1. 㔍 ขᛒ⺑ᦠߪᢛߐࠇߡࠆ߆ 5. లታ 4.߿߿లታ 3. ᥉ㅢ 2.߿߿ਇ⿷ 1. ߥ 2001 ᐕ⑺ޔ࿖ౝߢߪ 40 ~ 250 eV 㗔ၞߩࠕࡦࠫࡘ࠲ࡆࡓࠗࡦ߇ਇ⿷ߒ ߡࠆ ᧄޔߡߞ߇ߚߒޕBL ߢߪห↪ߦឭଏߔࠆࡆࡓ࠲ࠗࡓࠍߎࠇએᷫࠄߔߎ ߣߥߊߟ߆ޔല₸⊛ߦታ㛎ࠍⴕ߁ߎߣ߇ߢ߈ࠆࠃ߁ߦߔࠆᔅⷐ߇ࠆޕല₸ൻߩߚޔ ⸘↹ߒߡࠆߎߣߪ ࠲ࡘࠫࡦࠕޔGap ୯ߣಽశེߩหᦼಽశེ⺞ᢛߩߚߩశ ᓟߩ⸘↹ߩᅷᒰᕈ ⟎ࡕ࠾࠲ߩ⸳⟎ߢࠆޕ ߦߟߡ ߹ߚޔ㜞ಽ⸃⢻ߦ߅ߡࠃࠅᒝశࠍᓧࠆߚޔਇ╬㑆㓒ೞ✢࿁᛬ᩰሶࠍዉߔ ࠆߎߣ߇ߍࠄࠇࠆߢ⁁ޔߪߡߟߦࠇߎޕᓧࠄࠇࠆᚑᨐߣᛩ⾗ലᨐߩࡃࡦࠬࠍ ⠨ᘦߒߡᬌ⸛ࠍㅴࠆᔅⷐ߇ࠆޕ ᓟ 5 ᐕ㑆ߦ ᕈ⢻ޔ᭽╬ߢ․⸥ ߔߴ߈ὐ ᡷ⦟ᡷༀߔߴ߈ὐ ߇ࠇ߫ ੍▚ᛩ ⸘↹ߐࠇߡࠆᣂ VUVSX 㜞ノᐲశḮ⸘↹߇ߤߩࠃ߁ߥ߽ߩߦߥࠆ߆ߦࠃ ࠅޔBL16B ߩࠅᣇ߽ᄌࠊߞߡߊࠆߩࡦࠗࡓࡆޕਇ⿷߇⸃ᶖߐࠇࠇ߫ࠆޔಽ㊁ ߦ․ൻߒߚㆇ༡ᡷ⦟߇น⢻ߦߥࠆޕᲑ㓏ߢߪޔᜂᒰ⠪߇ߤߩࠃ߁ߦࡆࡓࠗࡦ ࠍㆇ༡ᡷༀߔߴ߈߆⏕ߥᣇะᕈࠍ␜ߔᤨᦼߢߪߥޕ ታ㛎ⵝ⟎ߩࠬࡍࠬߦ⚂߇ࠆࠃ߁ߥߩߢߩ࠭࠾ߩ߆ߟߊޔ㜞ታ㛎ߦߟߡ ᣉ⸳⠪ߣߒߡⵝ⟎ࠍḰߔࠆᣇะ߽↪⠪ߩᄢߣᚑᨐߩჇᒝߦߪᓎ┙ߟޕ ߘߩઁᓟߩ⸘↹ߦ This beamline is complementary to BL-2C, with the additional advantage that it ઃߡߩᗧ covers the low energy region between 40 and 250 eV with potentially superior performance to BL-3B. It should therefore be competitive with a beamline covering a similar energy range on a 3rd generation source. The scientific programme is internationally competitive, particularly in the area of two-electron excitation and ionisation. Once the optical system is upgraded, with the problems mentioned in the report corrected, this beamline should remain competitive for some years to come.
