Proceedings of the 5th Annual Meeting of Particle Accelerator Society of Japan and the 33rd Linear Accelerator Meeting in Japan (August 6-8, 2008, Higashihiroshima, Japan) TIMING FEEDBACK SYSYTEM FOR THE KIKCER PULSE ,A) B) Takashi Naito 1 , Atsushi Hayakawa A) High Energy Accelerator Research Organization(KEK), Accelerator Lab. 1-1 Oho, Tsukuba, Ibaraki, Japan 305-0801 B) Kanto Information Service Co. Ltd. 8-21 Bunkyo, Tsuchiura, Ibaraki, Japan, 300-0045 Abstract The stabilization of a kicker is very significant to stabilize the beam orbit of the extracted beam, which needs a precise orbit control for the ultra-low emittance beam. The thyratron switch of the kicker has a timing drift of the response time, which come from the environment temperature change, the aging of the thyratron, etc.. To cure the timing drift of the kicker pulse, a timing feedback system has been introduced for the trigger signal of the kicker. The feedback system consists of an oscilloscope (TEK3054), digital delays (Hamamatsu C1097) and a control computer. The kick timing of the kicker is stabilized from 10ns to less than 1ns by the feedback system. ࢞ࢴ࣭࢜ࣂࣜࢪࡡࢰ࢕࣐ࣤࢡࣆ࢔࣭ࢺࣁࢴࢠࢨࢪࢷ࣑ ንິࡌࡾࡒࡴࣄ࣭࣑࡞ྜྷ᭿ࡊ࡙ゝῼࢅ⾔ࡖ࡙࠷ࡾ ࣄ࣭࣑࣓ࢼࢰ࡞ࡵᙫ㡢ࢅ୙࠻ࡾࠊᏭᏽࡊࡒࣄ࣭࣑ ᨲᑏකࣛࣤࢡ࡝࡜ࡡ⵫✒ࣛࣤࢡ࡚ࡢoff-axisථ ࡡථᑏࠉཱིࡽฝࡊࢅ⾔࠹ࡒࡴ࡞ࡢ㧏㞹ᅸࣂࣜࢪࡡ ᑏ࠿⾔ࢂࡿ࡙࠷ࡾࠊoff-axisථᑏࡢࠉࣂࣜࢪⓏ࡝ ࢰ࢕࣐ࣤࢡࢅᏭᏽ໩ࡌࡾᚪさ࠿࠵ࡾࠊ ࣁࣤࣈ㌮㐠ࢅషࡽථᑏࣄ࣭࣑ࢅ࢓ࢠࢬࣈࢰࣤࢪ ATF ࢱ ࣤ ࣅ ࣤ ࢡ ࣛ ࣤ ࢡ ࡡ ථ ᑏ ࠉཱི ࡽ ฝ ࡊ ࢞ࢴ ࡡ୯࡞ථࡿ࡙ථᑏࡊࠉථᑏࣄ࣭࣑࠿ୌ࿔ࡌࡾ㛣 ࣭࢜ࡢࠉCX1671 Thyratronࢅ㸧ᮇ୩าິషࡈࡎ࡙ ࡞ࣁࣤࣈ㌮㐠ࢅᡘࡌࡻ࠹࡞ࡌࡾࠊലࡀࢅᣚࡖ࡙ 25kV, 1kAࢅⓆ⏍ࡈࡎ࡙࠷ࡾࠊ [1][2] ࣂࣜࢪᖕࡢࠉࡐ ථᑏࡈࡿࡒථᑏࣄ࣭࣑ࡢࠉ࢓ࢠࢬࣈࢰࣤࢪࡡ୯ ࡿࡑࡿ60ns, 300ns࡚࠵ࡾࠊ㧏㞹ᅸࣂࣜࢪࡢ㸧ᮇࡡྙ ࡚ኬࡀࡂᣲິࡌࡾ࠿ࠉࢨࣤࢠࣞࢹࣞࣤࢱࣤࣅࣤ ᠺ࡚࠵ࡾࡒࡴࢰ࢕࣐ࣤࢡࡡንິࡢࣄ࣭࣑࡞ᨼវ࡚ ࢡ࡞ࡻࡖ࡙ḗࡡථᑏࡱ࡚࡞ࡢࢱࣤࣈࡊࠉḗ࡞ࣁ ࠵ࡾࠊ㸧ᮇࡡThyratronࡡࢰ࢕࣐ࣤࢡࡡንິ࠿ྜྷࡋ ࣤࣈ㌮㐠ࢅషࡖ࡙ࡵࢬࣈࢰ࣑࡞ᙔࡒࡼ࡝࠷ࠊࡆ ࡚࡝࠷ሔྙࠉྙᠺࡊࡒࣂࣜࢪἴᙟࡢࡐࡿࡑࡿࡡἴ ࡡථᑏ᪁Ἢࡢ᪜࡞ථᑏࣄ࣭࣑ࡡᏋᅹࡌࡾࣁࢢࢴ ᙟ࡛㐢ࡖ࡙ࡊࡱ࠹ࡒࡴࠉࢰ࢕࣐ࣤࢡࡡንິࡢࣄ࣭ ࢹ࡞Ἰࡁ㊂ࡊථᑏ࠿ྊ⬗࡚࠵ࡾ࠿ࠉኬࡀ࡝ࣛࣤ ࣑ ࡡ ࢞ࢴ ࢠみ ࡞ ࡵ├ ᥃ᙫ 㡢ࡌ ࡾ ࠊ≁ ࡞ཱི ࡽ ฝࡊ ࢡࡡ࢓ࢠࢬࣈࢰࣤࢪ࠿ᚪさ࡞࡝ࡾࠊILCࡡࢱࣤࣅ ࢞ࢴ࣭࡚࢜ࡢࠉ300nsࡡࣂࣜࢪἴᙟࡡflattopࢅ౐࠷ ࣤࢡࣛࣤࢡ࡚ࡢ㸝≁࡞࣎ࢩࢹࣞࣤࣛࣤࢡ࡚ࡢ㸞ࠉ 150ns㛣㝰ࡡ㸨ࣁࣤࢲྜྷ᫤ཱིࡽฝࡊ࠿⾔ࢂࡿ࡙࠷ࡾ ථᑏࣄ࣭࣑࡞ᑊࡊ࡙ኬࡀ࡝࢓ࢠࢬࣈࢰࣤࢪࢅᣚ ࠿ࠉࡆࡡ࣓࣭ࢺ࡚ࡢࠉ඙㢄ࣁࣤࢲ࡛㸨␊┘ࡡࣁࣤ ࡗ஥࠿ฝᮮ࡝࠷ࡒࡴon-axisථᑏࡡᚪさ࠿࠵ࡾࠊ ࢲ ࡢ ࡐࡿ ࡑࡿ ࣂ ࣜࢪ ࡡ❟ ࡔ୕ ࠿ ࡽ㸤 ❟ࡔ ୖ ࠿ࡽ on-axisථᑏࡢࠉ࿔ᅂࡊ࡙࠷ࡾࣄ࣭࣑ࡡ㏳㐛ᚃ࡞ ࢙ࢴࢩ௛㎾࡞࠵ࡽᏭᏽ࡝ࣂࣜࢪࢰ࢕࣐ࣤࢡ࠿さị ࢞ࢴࢠ㞹☚ሔࢅ❟ࡔ୕ࡅථᑏࣄ࣭࣑ࡡථᑏみࢅ ࡈࡿࡾࠊ ࢭࣞᗐ࡞ࡊࠉ࿔ᅂࡊ࡙࠷ࡾࣄ࣭࣑࡛ྜྷࡋ㌮㐠࡞ ATF࢞ࢴ࣭࢜࡞ࣂࣜࢪࡡࢰ࢕࣐ࣤࢡࢅゝῼࡊࠉ ࡌࡾࠊ࢞ࢴࢠ㞹☚ሔࡢࠉḗࡡ࿔ᅂࣄ࣭࣑࠿ᮮࡾ ንິࢅࢸ࢔ࢩࢰࣜࢸ࢔ࣝ࢕࡞ࡻࡖ࡙⿭ḿࡌࡾࢨࢪ ࡱ࡚࡞ࢭࣞ࡞ࡌࡾᚪさ࠿࠵ࡾࠊࡐࡡࡒࡴࠉࣛࣤ ࢷ࣑ࢅᑙථࡊࡒࠊࡆࡡࣆ࢔࣭ࢺࣁࢴࢠࢨࢪࢷ࣑ࡡ ࢡࡡࣁࣤࢲ㛣㝰ࡻࡽ㏷࠷❟ࡔ୕࠿ࡽࠉ❟ࡔୖ࠿ ᑙ ථ ࡞ ࡻ ࡖ ࡙ ࠉ ࣂ ࣜ ࢪ ࡡ ࢰ ࢕ ࣐ ࣤ ࢡ ࡡ ን ິ ࡢ ࡽࡡ࢞ࢴࢠ㞹☚ሔ࠿ᚪさ࡛࡝ࡾࠊྜྷᵕ࡞on-axis ࢨࣘࢴࢹࡇ࡛ࡡࢩࢴࢰ࣭ࡡ⠂ᅑࡱ࡚ᢒ࠻ࡾ஥࠿ฝ ฝᑏࡢࠉ๑ࡡ࿔ᅂࣄ࣭࣑࠿㐛ࡁཡࡖࡒᚃ࡞࢞ࢴ ᮮࡒࠊࡱࡒࠉゝῼࢸ࣭ࢰࡡࣞ࢟ࣤࢡ࠾ࡼࢩࢴࢰ࣭ ࢠ㞹☚ሔࢅ❟ࡔ୕ࡅ┘Ⓩࣁࣤࢲࢅ࢞ࢴࢠࡌࡾᚪ ࢅᑚࡈࡂࡌࡾ᭩㐲࡝reservoir 㞹ᅸࢅぜ࠷ࡓࡌ஥ࡵ さ࠿࠵ࡾࠊࡐࡡࡒࡴࠉ࢞ࢴ࣭࢜ࡢ㧏㏷ᛮ࡛࢞ࢴ ྊ⬗࡛࡝ࡖࡒࠊࡆࡡࢨࢪࢷ࣑ࡢATF࡚஢ᏽࡈࡿ࡙ ࢠࣂࣜࢪࡡࢰ࢕࣐ࣤࢡ࠿Ꮽᏽ࡚࠵ࡾᚪさ࠿࠵ࡾࠊ ࠷ࡾILC⏕ࡡstrip-line kicker࡞ࡵ౐⏕ࡈࡿࡾ஢ᏽ࡚ ATF࡚౐⏕ࡈࡿ࡙࠷ࡾ࢞ࢴ࣭࢜ࡢ㧏㞹ᅸࣂࣜࢪ ࠵ࡾࠊ ࢅࣄ࣭࣑ࡡࢰ࢕࣐ࣤࢡ࡞ྜྷ᭿ࡈࡎࡾᚪさ࠿࠵ࡾ࠿ࠉ ࢹࣛ࢝ಘྒ࠿Ꮽᏽ࡚࠵ࡖ࡙ࡵ㧏㞹ᅸࢸࣁ࢕ࢪࡢῺ 㸧㸣ࢨࢪࢷ࣑ᵋᠺ ᗐࡷ⤊ᖳን໩➴࡞ࡻࡽንິࡌࡾࠊ㧏㞹ᅸࣂࣜࢪࡡ ࢰ࢕࣐ࣤࢡ࠿ንິࡌࡾ࡛ࣄ࣭࣑㌮㐠࠿ንິࡌࡾࡣ ᅒ㸦࡞ࢰ࢕࣐ࣤࢡࣆ࢔࣭ࢺࣁࢴࢠࢨࢪࢷ࣑ࡡ ᵋ ࠾ࡽ࡚ࡢ࡝ࡂࠉ㧏㞹ᅸࣂࣜࢪ࠿Ⓠ⏍ࡌࡾࢿ࢕ࢫࡵ ᠺ ࢅ ♟ ࡌ ࠊ 㸧 ᮇ ࡡ Thyratron࡞ࡢ≺❟࡞2.8ns step 㸦㸣ࡢࡋࡴ࡞ 1 E-mail: [email protected] -731- Proceedings of the 5th Annual Meeting of Particle Accelerator Society of Japan and the 33rd Linear Accelerator Meeting in Japan (August 6-8, 2008, Higashihiroshima, Japan) delay࡞ࡻࡖ࡙ࢰ࢕࣐ࣤࢡㄢᩒࡈࡿࠉࢹࣛ࢝࠿౩⤝ ࡈࡿ࡙ࡾࠊ ྘ Thyratron ࡡ ἴ ᙟ ࢅ ࢛ ࢨ ࣞ ࢪ ࢤ ࣭ ࣈ (TDS3045 5Gs/s)࡞ࡻࡖ࡙ῼᏽࡊࠉࣂࣜࢪࡡ❟ࡔ୕࠿ࡽ᫤㛣ࡡ ิ᭿ೋ࠾ࡼࡡࡍࡿࢅ⿭ḿࡌࡾࡻ࠹࡞Digital Delay࡞ ࢬࢴࢹࡌࡾࠊࡆࡡࣆ࢔࣭ࢺࣁࢴࢠࡢ㛏᫤㛣࡚ࡡን ິ࡞ᑊࡌࡾ⿭ḿࢅ᝷ᏽࡊ࡙࠷ࡾࡒࡴࠉᚺ➽᫤㛣ࡢ 㸦㸥⛂⛤ᗐ࡛ࡹࡖࡂࡽ࡚࠵ࡾࠊἴᙟࡡῼᏽࡢ㸦Hz ࡚࠵ࡽࠉῼᏽೋࡢ㸦㸥ᅂᖲᆍ໩ࡊ࡙౐⏕ࡊ࡙࠷ࡾࠊ ࢛ࢨࣞࢪࢤ࣭ࣈࡡ᫤㛣⢥ᗐࡢ~400ps࡚࠵ࡽࠉᖲᆍ ໩࡞ࡻࡽ~100ps࠿᭿ᙽฝᮮࡾࠊ᫤㛣⢥ᗐࡢᚃ㏑ࡡ ᵕ࡞࢛ࢨࣞࢪࢤ࣭ࣈࡡ᫤㛣⢥ᗐࡻࡽThyratronࡡࢰ ࢕࣐ࣤࢡࢩࢴࢰ࣭࠿ኬࡀࡂࠉโ㝀ࡈࡿࡾࠊDigital Delayࡢࠉ᭩ᑚ30psࢪࢷࢴࣈ࡚᭩ኬ32nsࡱ࡚ࡡスᏽ ࠿ྊ⬗࡚࠵ࡾࠊ ࣂࣜࢪࡡἴᙟࠉἴ㧏ೋ࠿ୌ⮬ࡊ࡙࠷ࡾᵕᏄ࠿ึࡾࠊ ᅒ㸨࡞ណᅒⓏ࡞┘Ⓩೋࢅࡍࡼࡊࡒሔྙࡡ㏛ᚉࡡ ᵕᏄࢅ♟ࡌࠊ㉝ࡡῼᏽೋ࡚㟯࠿スᏽೋ࡚࠵ࡾࠊࡆ ࡡౚ࡚ࡢࠉࣆ࢔࣭ࢺࣁࢴࢠࡡスᏽࢪࢷࢴࣈࡢ250ps ࡚࠵ࡽࠉ┘Ⓩೋ࠿20nsࡍࡿ࡙࠷ࡾ᫤࡞⣑400⛂࡚┘ Ⓩೋ࡞฽㐡ࡊࠉࡐࡿ௧㜾ࡢῼᏽೋ࠿ୌᏽೋ࡞࡝ࡾ ࡻ࠹࡞โᚒࡊ࡙࠷ࡾᵕᏄ࠿ึࡾࠊ ᅒ㸨㸯ࣆ࢔࣭ࢺࣁࢴࢠࡡ㏛ᚉ≁ᛮ 3.1 ᮇࢨࢪࢷ࣑ࢅ౐ࡖࡒreservoir 㞹ᅸࡡㄢᩒ ᅒ㸦㸯ࣆ࢔࣭ࢺࣁࢴࢠࢨࢪࢷ࣑ 㸨㸣ῼᏽ⤎ᯕ ᅒ 㸧࡞ ࣆ࢔ ࣭ࢺࣁ ࢴࢠ offࡡ ሔྙ࡛ onࡡ ሔྙ ࡡ ࢞ࢴ࣭࢜ࣂࣜࢪࡡἴᙟࢅ♟ࡌࠊFB off࡚ࡢThyratron ࡡࢪ࢕ࢴࢲࢰ࢕࣐ࣤࢡ࠿ࡍࡿࡾ࡛ࣂࣜࢪࡡᙟ≟ࡵ ཬᑏἴࡡᵕᏄࡵንࢂࡾࠊFB on࡚ࡢࢪ࢕ࢴࢲࢰ࢕࣐ ࣤࢡࢅ⤧࠻ࡍୌ⮬ࡈࡎࡾࡆ࡛࠿ฝᮮࡾࡡ࡚㸧ࡗࡡ FB off FB on ᅒ㸧 Thyratron 㞹Ὦἴᙟࡡࢰ࢕࣐ࣤࢡ࡞ࡻ ࡾ㐢࠷ -732- ᅒ㸩FG࡞⣑㸫᫤㛣ࡡῼᏽೋ࡛ࣆ࢔࣭ࢺࣁࢴࢠࡡ スᏽೋࡡን໩ࢅ♟ࡌࠊࢰ࢕࣐ࣤࢡࡡᖲᆍೋࡢ㸧ࡗ ࡡThyratron࡚ࢭࣞ࡞ಕࡒࡿ࡙࠷ࡾ࠿Thyratron2ࡡῼ ᏽ ೋ ࡢࢨ ࣘࢴ ࢹ ࡇ࡛ ࡡን ິ࠿ ኬ ࡀࡂ ࠉࣆ ࢔ ࣭ࢺ ࣁࢴࢠࡡ㏛ᚉࡵ୘Ꮽᏽ࡞࡝ࡖ࡙࠷ࡾࠊࢰ࢕࣐ࣤࢡ ࢩࢴࢰ࣭ࡡኬࡀࡈࡢࠉThyratron1࠿+/-1ns࡝ࡡ࡞ᑊ ࡊ࡙ࠉThyratron2ࡢ-2ns~+7ns⛤ᗐࡱ࡚ᗀ࠿ࡖ࡙࠷ࡾࠊ ࡆࡿࡢreservoir㞹ᅸ࠿᭩㐲ೋࡻࡽ఩࠷ࡒࡴ࡞ࢰ࢕࣐ ࣤࢡࢩࢴࢰ࣭࠿ኬࡀࡂ࡝ࡖ࡙࠷ࡾࡵࡡ࡛᥆ῼࡈࡿ ࡾࠊThyratron2ࡡreservoir㞹ᅸࢅࠉ;࠾ࡼ; ࡱ ࡚ ୕ ࡅ ࡾ ࡛ ࠉ ᅒ 㸩 HI ࡡ ᵕ ࡞ ን ࢂ ࡖ ࡒ ࠊ Thyratron2ࡡࢰ࢕࣐ࣤࢡࢩࢴࢰ࣭ࡢThyratron1ࡻࡽ ࡢᑛࡊኬࡀ࠷࠿࡮࡯ྜྷ⛤ᗐࡱ࡚ᑚࡈࡂࡌࡾ஥࠿ฝ ᮮࡒࠊୌ⯙࡞Thyratronࡡreservoir㞹ᅸࡡㄢᩒࡢࠉ࢛ ࢨࣞࢪࢤ࣭ࣈ࡚ࡡ▯᫤㛣ࡡῼᏽࢅぜ࡝࠿ࡼ⾔ࢂࡿ ࡾ࠿ࠉࡆࡡᵕ࡞ᮇࢨࢪࢷ࣑ࢅ౐⏕ࡌࡾ஥࡞ࡻࡽ㛏 ᫤㛣ࡡንິࡡᵕᏄ࠾ࡼreservoir㞹ᅸࡡ᭩㐲ೋࢅỬࡴ ࡾࡆ࡛࠿ฝᮮࡾࠊ ࡱࡒࠉࣆ࢔࣭ࢺࣁࢴࢠࡡ㏛ᚉࡡᵕᏄ࠾ࡼࡼ&9+ࡡ ࢞ࢴ࣭࢜ࢨࢪࢷ࣑࡚ࡢࢹࣛ࢝ࢰ࢕࣐ࣤࢡࡡንິࡢ 㸧ࡗࡡThyratron࡚ྜྷࡋലྡྷ࡚ࡢ࡝ࡂࠉࡳࡊࢀཬᑊ ᪁ྡྷ࡞ንິࡌࡾࡆ࡛࠿ึࡖࡒࠊࡆࡿࡢࠉPFL࡞ࡻࡾ 㧏㞹ᅸࡢୌࡗࡡࡒࡴ࡞ࠉୌ᪁࠿᪡ࡂࢹࣛ࢝ࡌࡾ࡛ ௙᪁࠿ࢹࣛ࢝ࡌࡾ᫤࡞ࡢ㧏㞹ᅸ࠿ୖ࠿ࡖ࡙࠷ࡾࡒ ࡴ࡞ࡈࡼ࡞ࢪ࢕ࢴࢲࡌࡾࢰ࢕࣐ࣤࢡ࠿㐔ࡂ࡝ࡾല ྡྷ࡞࠵ࡾࡒࡴ࡚࠵ࡾ࡛ᛦࢂࡿࡾࠊ Proceedings of the 5th Annual Meeting of Particle Accelerator Society of Japan and the 33rd Linear Accelerator Meeting in Japan (August 6-8, 2008, Higashihiroshima, Japan) ᅒ㸩a㸯Thyratron 1 ᅒ㸩b㸯Thyratron 2 ᅒ㸩c㸯Thyratron 1 ᅒ㸩d㸯Thyratron 2 㸣8WULSOLQHNLHNHU࡫ࡡᚺ⏕ &9+ ࡚ ࡢ ࠉ .1( ⏕ ࢞ ࢴ ࢜ ࣭ ࡡ SURWRW^SH ࡛ ࡊ ࡙ VWULSOLQHNLHNHUࢅ㸧ࣗࢼࢴࢹ౐⏕ࡊࡒ࢞ࢴ࣭࢜ ࡚ࣄཱི࣭࣑ࡽฝࡊᐁ㥺ࢅ⾔࠹஥ࢅゝ⏤ࡊ࡙࠷ࡾ࠿ @B ࠉࡆࡡᐁ㥺࡚౐⏕ࡈࡿࡾN;༖ᑙమࢪ࢕ࢴࢲࡵ 㛏᫤㛣㐘㌹࡚ࡢῺᗐࢺࣛࣆࢹ➴ࡡࡒࡴ࡞ࣂࣜࢪࢰ ࢕ ࣐ ࣤ ࢡ ࠿ ን ິ ࡌ ࡾ ࡆ ࡛ ࠿ ึ ࡖ ࡙ ࠷ ࡾ ࠊ VWULS OLQHNLHNHU࡚ࡢࣂࣜࢪࡡࢰ࢕࣐ࣤࢡࢅSV௧ୖ ࡡ⢥ᗐ࡚ྙࢂࡎࡾᚪさ࠿࠵ࡽࠉ㸧ࣗࢼࢴࢹ࡞౐ࢂ ࡿࡾ㸩ྋࡡN;༖ᑙమࢪ࢕ࢴࢲࡡࢹࣛ࢝࡞ᮇࢨࢪ ࢷ࣑ࢅᑙථࡌࡾ஢ᏽ࡚࠵ࡾࠊᮇࢨࢪࢷ࣑࡚ࡢࢰ࢕ ࣐ࣤࢡࢩࢴࢰ࣭ࡡࡒࡴ᫤㛣⢥ᗐࡡ᳠ッࡱ࡚ࡢ⮫ࡼ ࡝࠾ࡖࡒ࠿ࠉࢰ࢕࣐ࣤࢡࢩࢴࢰ࣭ࡡᑚࡈ࡝༖ᑙమ ࢪ࢕ࢴࢲ࡚ࡢSV௧ୖࡡ᫤㛣⢥ᗐ࠿ᐁ⌟ฝᮮࡾࡵ ࡡ࡛᭿ᙽࡈࡿࡾࠊ 㸪㸣ࡱ࡛ࡴ ࢞ࢴ࣭࢜࡞ࢰ࢕࣐ࣤࢡࣆ࢔࣭ࢺࣁࢴࢠࢅᑙථࡌ ࡾࡆ࡛࡞ࡻࡖ࡙ࠉ࢞ࢴ࣭࢜ࣂࣜࢪࡡࢰ࢕࣐ࣤࢡࡡ ንິࡢ⣑+/-1nsࡡࢩࢴࢰ࣭௧ୖ࡞ࡌࡾࡆ࡛࠿ฝᮮࡒࠊ ࡱࡒࠉࣂࣜࢪࢰ࢕࣐ࣤࢡࡡῼᏽ࠾ࡼreservoir㞹ᅸࡡ ᭩㐲ೋࢅỬࡴࡾ஥࠿ฝᮮࡾᵕ࡞࡝ࡖࡒࠊࡆࡡ -733- ࣆ࢔࣭ࢺࣁࢴࢠࡢࠉATFථᑏ㸤ཱིࡽฝࡊ࢞ࢴ࣭࢜ ࡞ ᑙ ථ ࡈ ࡿ Ꮽ ᏽ ࡞ ິ ష ࡊ ࡙ ࠷ ࡾ ࠊ ࡱ ࡒ ࠉ VWULS OLQHNLHNHUࡡᐁ㥺࡞ࡵᮇࢨࢪࢷ࣑ࢅᑙථࡌࡾ஢ᏽ ࡚࠵ࡾࠊ 㸣ㅨ㎙ ᮇࢨࢪࢷ࣑ࡡ㛜ⓆࡢILCᅗ㝷භྜྷ㛜Ⓠࡡୌ⎌࡛ࡊ ࡙㐅ࡴࡼࡿ࡙࠷ࡾࡵࡡ࡚ࠉゝ⏤ࢅ᥆㐅ࡊ࡙ୖࡈ࠷ ࡱࡊࡒ㕝ᮄᶭᵋ㛏ࠉ♼ㆺ᪃ス㛏ࠉఫ⸠୹ᖷࠉᶋㆺ ILC᥆㐅ᐄ㛏࡞វㅨ⮬ࡊࡱࡌࠊࡱࡒࠉᐁ㥺࡞༝ງࡊ ࡙࠷ࡒࡓࡀࡱࡊࡒATFࢡ࣭ࣜࣈࡡ᪁ࠍ࡞វㅨ࠷ࡒ ࡊࡱࡌࠊ ཤ⩻ᩝ⊡ [1] M. 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