ERL 1. ERL FEL [1] [2]KEK 2005 2013 12 ERL ERLcERL [3] OHO [4]ERL 2008 [5, 6] cerl 2. cerl cerl FEL 1 1 Table 1: cerl BPM (Stripline/Button) Position, Charge 45 SCM (Ce:YAG/OTR) Position, Profile 32 BLM (Fiber/CsI) Loss 10 CT Charge 4 DCCT Current 1 Movable FC Charge 3 BPM (Beam Position Monitor) BPM Fig. 1: cerl
BPM 2 Fig. 2: BPM [7] (a) (b) BPM [8, 9] BPM ERL CW BPM cerl BPM cerl 2 1 45 BPM SCM (Screen Monitor) SCM CCD cerl SCM BPM cerl 32 SCM BLM (Beam Loss Monitor) 2
BLM BLM 2 ERL BLM cerl BLM 37 1 μs 10 CT (Current Transformer) CT 3 BPM CT CT CT cerl 4 CT SN 4 Bergoz Fast CT Fig. 4: cerl CT Fig. 3: CT DCCT (DC Current Transformer) CT
DCCT 5 DCCT DCCT 2 3 1 khz 2 1 2 2 2 6(a) 2 6(b) 2 3 2 Fig. 6: 2 [10] (a) (b) 2 DCCT DCCT CT CT cerl DCCT 1 CT 7 Bergoz New Parametric CT FC (Faraday Cup) Fig. 5: DCCT [10] FC 2
Fig. 7: cerl DCCT Fig. 8: FC 2 [10] DCCT 1 μa 2 8 FC FC FC Fig. 9: cerl FC SCM cerl 2 3 FC 2 SCM FC 5 9 FC SCM
Table 2: cerl BPM ͷ ஔ ॴ μϋτ ۃ ग़ ෯ [mvpp /pc] ϩεϑνϋλʔ [mv/pc] ෦ɾ ઢ෦ φ50 φ63 Stripline (Short) Stripline (Long) 27 4 103.5 88.6 59.1 48.3 ΞʔΫ෦ φ85 8 ܗ Stripline (Long) Stripline (Short) 2 10 60.2 172.7 21.3 82.0 LCS ಥ φ50 Button 2 75.1 26.1 ෦ɾ அ෦ μϯϓϥπϯ ͷγϯνϩʔλͱಉ ۦ ಈ ߏػ Λར ग़ ͷα ͳ ܗ ঢ়ͷ ۃ ʠ ετϧοϓϥπϯ ۃ ʡͱ Ε ΕΔɻ ݺ ΕΔɻ Ҏ ͷ ج ຊతͳϏʔϜϞχλʔʹՃ ɺ ϏʔϜ அϥΠϯʹ ʠ εϧοτεωϟφʔ ʡͱʠ ภ ಎ ʡ ஔ Ε Δɻ ΕΒ Ε ΕϏʔϜͷ ʢΤ ϛολϯεʣͱਐߦ ͷ ʢόϯν ʣΛଌఆ Δ ΊͷϞχλʔ Ͱثػ Δ [11]ɻ ҎԼͰ ɺ ΕΒͷத Βಛʹ ཁ ͷߴ BPM ͱ SCMɼBLM ΛऔΓ ɺ ͷಈ ݪ ཧ γεςϝ ߏ ɺ ମతͳ Λड़ Δɻ ɺࠓ ޙ ͷ ʹ ͱ ʹޙ Ί հ Δɻ 3. ϏʔϜҐஔϞχλʔʢBPMʣ Ճ ث Λߏ Δਅ μϋτ ɺ Λ௨Δ ϏʔϜͷαΠζ ي ಓΛߟ ͳδ ϏʔϜϩε গͳ ͳδα ͳ ɾ ܗ ঢ়Ͱ ΒΕ Δɻલ ষͰड़ ͱ ΓɺBPM μϋτͷ ଆʹ ۃ Λ ஔ น ͷ ΛϐοΫΞοϓ Δ ͷͱ Δ ΒɺμΫτ ҟͳε BPM ͷσβπϯ มΘ ΔɻcERL ʹ ஔ Ε Δશ 45 ͷ BPM ɺμ Ϋτͷ ܗ ঢ় ۃ ͷλπϓʹα ද 2 ʹ ܝ 5 छ ʹ ผͰ ΔɻຊষͰ ɺ ΕΒͷத Β ɹ ͷଟ ઢ෦ BPM ʹ ɺ ͷ ࡉΛղઆ Fig. 10: ઢ෦ BPM μϋτͷ ਤͱ ۃ ෦ͷ ਅ Δɻ 3.1. 3.1.1. BPM μϋτͷ ܭ ɹ Ͱɺਤ 11 ͷα ͳϟσϧλߟ ɺετϦοϓ ϥπϯ ۃ ΒͲͷΑ ͳ৴ ग़ ΕΔ Λߟ ετϧοϓϥπϯ ۃ ͷಛ ͱ దԽ ΈΔɻԁ μϋτͷ ܘ Λ rɺμϋτத Β ਤ 10 ʹ ઢ෦ BPM μϋτͷ ਤͱ ۃ ෦ͷ ۃ ද໘ Ͱͷ ڑ Λ aɺμϋτத Β ۃ Λ ࠐݟ Ή ਅΛ ɻμΫτ ԁ ܗ ঢ়Ͱɺ ܘ 50 mm Ͱ Λ αɺ ۃ ͷ Λ l ͱ Δɻ ۃ ͷ ΔɻϏʔϜʹΑ ༠ ى ΕΔน ɺ นͷ Ε ΕϑΟʔυεϧʔʹ ଓ Ε Γɺಉ έʔ Լࠨӈʹ ஔ 4 ຕͷ ঢ় Ͱۃ ෦ औΓग़ ɻ ϒϧ Λհ 50 Ω Ͱऴ Ε Δ ͷͱ Δ 㸷㸫
R 1 = R 2 =50Ω Z strip r a α 50 Ω R 1 = R 2 = Z strip =50Ω 12 2 1 1/10 1/30 BPM BPM 2 Fig. 11: t =0 Z strip = R 1 =50Ω 2 1 0 <t<l/c 2 c t = l/c Z strip = R 2 =50Ω 2 2 t =2l/c 1 1 2l/c Fig. 12: 12 1 V 1 (t) V 1 (t) = 1 ( 2 α 2π R 1 [I beam (t) I beam t 2l )] c (3-1) I beam (t) I beam (t) =I 0 exp( t 2 /2σ 2 ) 3-1 [ ] e t2 2σ 2 e (t 2l/c)2 2σ 2 I 0 (3-2) V 1 (t) = Z strip 2 α 2π σ 13 3-2 ( ) α V 1 (ω) =Z strip 4π e ω 2 σ 2 ωl 2 sin e i( π 2 ωl c ) I0 c Z t (ω) I 0 (3-3)
Fig. 13: l = 300 mm Fig. 14: l = 300 mm,α=20 Z t (ω) BPM 14 Z t (ω) f max = c (2n 1) for n =1, 2, (3-4) 4l n =1 3-4 l opt = c 4f = λ 4 (3-5) l = nλ/2 2l/n cerl 1.3 GHz 2.6 GHz 3-5 28.8 mm 1.3 GHz 2.6 GHz 3-1.5 db 1.3 GHz 1.3 GHz 57.6 mm α 3-1 BPM α Z strip C Z strip =50Ω BPM cerl BPM α =20 50 mm BPM 8.8 mm 1mm r = a
10 Z strip 50 Ω 3 HFSS[12] 12 cerl BPM 2.6 GHz384 ps ε r 10 BHAε r =5 [13] 15 3 GdfidL[14] BPM 1mm3.3 ps 1pC 384 ps2.6 GHz Fig. 15: GdfidL BPM 3.1.2. TDR TDRTime Domain Reflectometry 50 Ω TDR 50 Ω 16(a)
16(b) 16(c) 50 Ω 17 TDR 57.6 mm BPM Tektronix TDR DSA8200TDR 80E04 50 Ω 384 ps 50 Ω Fig. 16: TDR (a)50 Ω (b) (c) Fig. 17: BPM TDR 3.1.3. s V (s) W L (s) [15] ( V (s) = E z z,t = z + s ) dz c = qw L (s) (3-6) q E z (z,t) s 1 ΔE
ΔE = q 2 k L (3-7) k L I ave P loss P loss = q I ave k L (3-8) BPM ERL cerl GdfidL 1mm3.3 ps 1pC 18 59.1 mv/pc 10 ma 4.6 mw BPM 2 BPM 125 mm [16] Fig. 18: BPM BPM BPM BPM 3.2. 3.2.1. ERL BPM BPM
BPM BPM BPM ADC FPGA [17] cerl fc 7.7 pc 100 μm 1 μs cerl 19 IC Fig. 19: 1.3 GHz 1.3 GHz BPF 20 MHz 1.3 GHz BPM 3.5 GHz 2.6 GHz 8 BPM 2.6 GHz 1.3 GHz 20 0dB -90 dbm -30 dbm Log-Linear 1 μs 200 ns 3.2.2. SL1000 ADC
Fig. 20: 12 bit FC cerl EPICS[18] 3.3. 1.3 GHz 21 x, y 21(b) 4 V t, V l, V r,v b x = k x (log V r log V l ) = k x log V r V l k x U (3-9) y = k y (log V t log V b ) = k y log V t V b k y V (3-10) U, V 4 (V t + V l + V r + V b ) k x, k y x 2 + y 2 r Fig. 21: BPM (a) (b) 2 [19] 3 CST PARTICLE STUDIO[20] 1mm U 22(a) k x (= k y ) 14.0 mm 3-10 2 22(b) BPM 22(b) x 2 + y 2 k x = k y =const.
U V BPM 1 2 BPM 8 1 1 BPM k x k y x = k x {log V tr +logv br (log V tl +logv bl )} = k x log V tr V br V tl V bl k x U (3-11) y = k y {log V tr +logv tl (log V br +logv bl )} = k y log V tr V tl V br V bl k y V (3-12) BPM 23 Δ/Σ 3.4. 3.4.1. Fig. 22: BPM (a) (b) BPM 45 cerl 2 24 BPM SCM BPM BPM BPM 150 μm 10 fc 1 μs 10 μm
Fig. 24: BPM SCM BPM BPM BPM Beam Based Alignment Fig. 23: BPM (a) (b) 3.4.2. BPM BPM 3.5. cerl 3.5.1. BPM 25(a) cerl BPM 4 BPM 25(b) BPM 4 BPM
Jefferson LaboratoryJLab ERL cerl 2 BPM BPM BPM 26(a) 180 2.6 GHz BPF 1.3 GHz Fig. 25: BPM (a) (b) 3.5.2. 2 cerl 2 SCM SCM ERL Fig. 26: BPM 2 (a) (b)
Table 3: cerl SCM φ50 Pneumatic YAG & OTR φ28 16 φ63 Pneumatic YAG φ26 5 φ100 Pneumatic YAG & OTR φ50 2 8 Pneumatic YAG & OTR 20 40 6 Pneumatic YAG / OTR 26 76 1 Stepping motor YAG / OTR 26 66 1 LCS φ41.5 Pneumatic Desmarquest 10 10 1 26(b) 2 4 cerl 300 ns 2 180 CW 2 2 4. SCM 1 cerl 32 SCM BPM SCM 3 7 SCM 4.1. SCM 4.1.1. 2 27 SCM Fig. 27: SCM
100 μm Ce:YAG Ce:YAG YAGYttrium Aluminum Garnet, Y 3 Al 5 O 12 Ce 70 ns 4 0.1 pc/μm 2 0 45 1mm OTROptical Transition Radiation OTR 28 OTR Table 4: Ce:YAG 4.57 g/cm 3 3.6 cm 1.82 360 MPa 602 J/kg K 11.7 W/m K 1970 C 525 nm 70 ns 18000 ph/mev 30 Å3 nm 0 45 Fig. 28: OTR OTR[21] (a) (b)45 e ɛ 28(a) OTR dw f dω dω d 2 W f dωdω = e2 β 2 cos 2 θ sin 2 θ 16π 3 ɛ 0 c (1 β 2 cos 2 θ) 2 (ɛ 1)(1 β 2 β ɛ sin 2 2 θ) (ɛ cos θ + ɛ sin 2 θ)(1 β ɛ sin 2 θ) (4-1) [21, 22]β c ɛ 0 θ
OTR β 1 ɛ 1 4-1 3 1 d 2 W f dωdω = e 2 16π 3 ɛ 0 c e2 sin 2 θ (1 β cos θ) 2 θ 2 4π 3 ɛ 0 c (θ 2 + γ 2 ) 2 (4-2) MCP Micro Channel Plate [23] γ =1/ 1 β 2 OTR dw b 4-1 β β OTR β 1 ɛ 1 d 2 W b dωdω e2 θ 2 ɛ 1 2 4π 3 ɛ 0 c (θ 2 + γ 2 ) 2 ɛ +1 (4-3) 3 OTR OTR ω OTR ω p ω p 10 ev 4-2 4-3 γ 29 θ ± 1 (4-4) γ γ γ Fig. 29: OTR 28(b) 45 4-3 OTR θ d 2 W dωdω = e 2 16π 3 ɛ 0 c sin θ 1 β cos θ + sin θ 1 β cos θ 2 (4-5) β 1 θ π/2, θ 1 1 2 θ θ 4-2 OTR 2 0 4-2 0 θ θ max θ max θ max 1 γ : dw dω = θ max 1 γ : dw dω = e2 8π 2 ɛ 0 c (γθ max) 4 (4-6) [ ] 2ln(γθ max ) 1 (4-7) e2 4π 2 ɛ 0 c
29 OTR γ 4 ω 1 ω 2 N photon 4-7 ω ω N photon = α ( ) [ ] ω2 2lnγ 1 ln (4-8) π ω 1 α θ max 1 1/γ 1 N beam 100 1 5 OTR 4-2 σ d 2 W ( ) dωdω exp θ2 0 (θ θ 0 ) 2 2σ 2 [(θ θ 0 ) 2 + γ 2 ] 2 dθ 0 (4-9) OTR 4-9 γ σ OTR [24] OTR cerl YAG SCM OTR OTR cerl 70 μm 40 nm OTR 0 OTR OTR OTR OTR 45 OTR SCM 50 mm φ28 mm 3 4 1mm 4.1.2. RF BPM 100 fs cerl
SCM cerl SCM RF 27 50 mm 3mm 3mm 33 mm 18 GdfidL 1mm3.3 ps 30 18 10 mv/pc 1.5 V/pC 1/100 31 RF 8 2 RF 3 0.1 mm SCM ICF BPM 180 mm SCM RF OTR Fig. 30: GdfidL RF (a) (b) Fig. 31: SCM RF FC 9 SCM SCM
4.2. ಈ ڑ Λ ͱ ΧϝϥΛϏʔϜϥΠϯ Βԕ εϋϧʔϯ ଌ ܥ ΔɻϨϯζͷલ໘ʹ ɺCCD ը ͳ ϏʔϜ ي ಓʹεΫϦʔϯΛૠ Δ Ͱ ୯ͳΔ ณ ʹա ͳ ͷͱɺεϋϧʔϯ Λ ϏʔϜͷ ΛಘΔ Ίͷ ܥ ඞཁͱͳΔɻਤ 32 ʹ ઢ෦ SCM Ͱ εϋϧʔϯ ଌ ܥ ͷ ਤͱ ਅΛ ɻલઅͰड़ ͱ Γɺ ε ΫϦʔϯ ϏʔϜ ʹର 90 ͷ ʹ Α ɺඞཁʹԠ ٵ ऩ ܕ ͷ ݮ ϑοϧλʔʢnd ϑο ϧλʔʣ औΓ ΒΕΔɻಛʹϏʔϜύϥϝʔλͷ ଌఆ Ͱ ͷ ڧ มԽ ಘΔ ॴͰ ɺϑΟ ϧλʔͷೱ Λԕ Ͱ Γସ Δ ΊͷϑΟϧλʔ νσϯδϟʔ උ Ε Δɻ ਐΈɺՄ Ҭͷ ݮ ίʔςοϯά ࢪ Ε Ϗϡʔ ϙʔτλ௨ μϋτ ෦ʹऔΓग़ ΕΔɻ ͷ ޙ 1 ຕͷΞϧϛฏ໘ϛϥʔΛհ Ԗ ʹ ΕɺμΫτΛഎʹ CCD Χϝϥ ͱ ΒΕΔɻ ϛϥʔͱұ த ܧ Δͷ ɺ ͷௐ Λ༰қʹ ΔͷͱɺΧϝϥΛϏʔϜϨϕϧΑΓ Ґஔʹ ஔ Δ ͱͱ ઢʹΑΔ CCD ࢠͷμϝʔδΛ ݮ Δ ΊͰ ΔɻΧϝϥʹ ɺΪΨϏοτΠʔαωο τλ௨ ը σʔλͷߴ ڑ Մ ͳ GigE ΧϝϥʢAllied Vision TechnologiesɼProsilica GC650ʣΛ ɻ1 ඵ ʹ 90 ϑϩʔϝͷը Λస Ͱ Δখ ܕ ͷσδλϧϟϊϋϩχϝϥͱɺccd ͷը 659 493ʢVGA ૬ ʣɺը απζ 7.4 μmʢਖ਼ ը ʣɺμΠφϛοΫϨϯδ 12 bit ʢ4096 ௐʣͰ ΔɻҰൠͷ Χϝϥ ͰΑ ߦ ΘΕΔʠ ΨϯϚ ਖ਼ ʡ ߦ Β ɺCCD Βग़ ΕΔ ѹͷ ෯ ͷ ʹ ڧ ൺ Δɻ ɺ ෦τϦΨʔʹ ҙͷσοϩπλճ λπϛϯ άͱ Մ Ͱɺ৴ ෯ͷήΠϯʢ0ʙ22 dbʣ ʢ10 μsʙ120 sʣ ωοτϫʔϋ ܦ Ͱ༰қʹ ఆͰ Δɻ ʹ ߜΓΛඋ σοετʔγϣ ϯͷ CCTV ϨϯζʢϛϡʔτϩϯɼHS5028J3ʣΛ ΔɻϨϯζͷয ڑ f ɺ ز Կ ʹ ɹ ΔϨϯζͷ Β f= L h H ɹ Fig. 32: εϋϧʔϯ ଌ ܥ ͷ ਤͱ ਅ (4-10) Ͱ ٻ ΊΒΕΔɻ ͰɺL Ϩϯζલ໘ Β ମ Ͱ ΕΒͷ ܥ ɺ ෦ Βͷ Λ ΊࠇΞ ͷ ڑ ʢ ಈ ڑ ʣɺh CCD ࢠͷαΠζɺH Ө ϧϛπτॲཧ Ε Ξϧϛ ͷ ശ ʹ ஔ ΕΔɻ ͷαπζͱ Δɻ ɺ ಈ ڑ 400 mm ਤ 27 ʹ εϋϧʔϯϗϧμʔ ԼΛ సͰ Δ ͷґஔʹϩϯζλ ஔ ɺεΫϦʔϯͷ ޱ φ28 mm ߏ ʹͳ Γɺ ͷ ʹΑ ΛऔΓग़ શମΛ 1/3 Πϯνͷ CCDʢH:4.8 mm V:3.6 mmʣͱ ɺ ͳθ ܥ Λ ஔ Δ Λม Δ ͱ Ͱ Ө Δ Ίʹ ɺ Α 50 mm ͷয ڑ ͷϩϯ Δɻ ج ຊతʹ ΞΫηεͷ қ Λߟ Ճ ث ζ ඞཁͱͳΔɻίϦϝʔλͷ μϯϓϥπϯͱ ͷ ଆʹ ஔ Δ ɺ ശ ΔଞͷϏϡʔ ఆ తͳϏʔϜϩε ༧ଌ ΕΔ ॴͰ ɺ ϙʔτ ઢγʔϧυͱ ཧతʹ ব Δ ʹ ઢʹΑΔϊΠζ μϝʔδλ ݮ Δ Ίɺ తʹ ଆʹ ஔ ΔɻͲ Βͷ Ͱ ɺΧ 㸷㸫
4.2.1. 5 [25] (1) NA o (2) NA o (3) CCD CCD 1 NA o (4) NA o (5) YAG NA o θ D NA o =sinθ D 2L (4-11) 5 (1) (3) 2 mm 0.5/0.1 mm 33(a) SCM 0.13 CCD 1 pixel 57 μm 33(b) (a) δ o 37 μm (4) δ t δ t = tna o 2n (4-12) t YAG OTR n YAG 1.82 4 OTR 1 NA o 0.036 4-12 δ t YAG (5) δ e 3 δ total δ total = δo 2 + δt 2 + δe 2 (4-13)
YAG 62 μm OTR 37 μm 57 μm CCD (5) OTR YAG OTR 29 3 SCM cerl SCM 2 YAG OTR cerl 5.5 MeV OTR 4-4 ±85 mrad 36 mrad 20 MeV ±25 mrad OTR YAG SN YAG YAG 4.3.1. SCM Fig. 33: (a) (b) 4.3. cerl SCM 34 SCMYAG GigE 2 5Hz SCM RMS
Fig. 35: Q d 2 x ds 2 = qb g mv x ω2 x (4-14) Fig. 34: SCM 4.3.2. Q SCM Q 6 Quadrupole Magnet Q 35 Q L m, q, v B g s s =0 x 0, x 0 dx 0 ds ( 4-14 x x ) = ( M F ( cos ωs 1 ω sin ωs ω sin ωs cos ωs x 0 x 0 ) )( ) x 0 x 0 (4-15) s 0 ω 2 s ( ) 1 cos ωs ω sin ωs M F = ω sin ωs cos ωs ( ) 1 0 (4-16) k 1 k ω 2 s s 4-16 M F 2 1
M D = ( ( 1 cosh ωs ω sinh ωs ω sinh ωs cosh ωs ) 1 0 k 1 ) (4-17) L ( ) 1 L M O = (4-18) 0 1 35 M FO = O M F M ( )( ) = = ( k ) 1 kl 1 L L 1 0 k 0 1 1 1 1 2 ( ) m 11 m 12 M 12 = m 21 m 22 (4-19) (4-20) 2 σ 2 σ 2 = ε(m 2 11 β 1 2m 11 m 12 α 1 + m 2 12 γ 1) (4-21) ε α 1,β 1,γ 1 1 Twiss Twiss s α(s) = β (s) (4-22) 2 γ(s) = 1+α(s)2 (4-23) β(s) 35 4-19 4-21 σ 2 = ε [ ] (1 kl) 2 β 1 2L(1 kl)α 1 + L 2 γ 1 [ ( 1 = L 2 σ1 2 k L α )] 2 1 + ε2 L 2 β 1 σ1 2 a(k b) 2 + c (4-24) 4-23 σ1 2 = εβ 1 k a, b, c 4-24 ac ε = L 2 (4-25) ac ε n = γβ L 2 (4-26) β γ Twiss β = v/c, γ =1/ 1 β 2 a, b, c Twiss a β 1 = (4-27) c ( ) a 1 α 1 = c L b (4-28) Twiss Q [26] 4-17 k 4-24 Twiss α 1 b 4-28 4-21 ( σ 2 = σ1 2 m 11 α ) 2 1 m 12 + ε2 β 1 σ1 2 m 2 12 A(m 11 + Bm 12 ) 2 + Cm 2 12 (4-29)
m 11 =cos k kl L l sin kl (4-30) l m 12 = k sin kl + L cos kl (4-31) m 11 = cosh k kl + L l sinh kl (4-32) l m 12 = k sinh kl + L cosh kl (4-33) l Twiss A, B, C ε n = γβ AC (4-34) A β 1 = (4-35) C A α 1 = B (4-36) C k 36 20 fc/bunch Q SCM 1 1 1 #18 YAG L6.0 m CCD ND k [m 1 ] SCM RMS σ x,σ y [mm] k 20 4-24 ε n 0.140 ± 0.002 mm mrad 0.136 ± 0.001 mm mrad Δε n Δa, Δc ( εn ) 2 ( ) 2 εn Δε n = (Δa) a 2 + (Δc) c 2 = γβ ( c ) ( a ) 2L 2 (Δa) a 2 + (Δc) c 2 (4-37) 7.7 pc/bunch Fig. 36: Q 5. BLM 37 cerl BLM BLM 4 cerl
2 CsI BLM 8 Tl CsI BLM BLM LCS 8 1 μs BLM cerl MAR-782 1s 50 kev 6MeV 37 12 12 2 10 DC 500 kv cerl > 7keV Fluke Biomedical 451B CsI BLM 5.1. BLM 2 2 n v Fig. 37: cerl BLM
v> c n β = v c > 1 n (5-1) 38 θ cos θ = 1 (5-2) nβ n =1.6 0.625c 51 5.0 ns/m Fig. 38: PMT [27] 39(a) L x 2 t d t d = L 2x (5-3) v f v f v f 2 3 c (5-4) Fig. 39: (a) (b) 39(b) A 1m B A v c3.3 ns/m 5-4 B AB 3.3 ns 5.0 ns 8.3 ns A B 5.0 ns 3.3 ns=1.7 ns
2 cerl 40 600 μm H10721-110 ns 8.3 ns/m ±30 cm 2 5.2. CsI BLM cerl BLM Fig. 40: cerl BLM cerl 1 μs [28] 41 CsI CsI(Tl) 5 Pure CsI CsI(Tl) 10 mm 10 mm 25 mm R11558 37 MDF 42(a)
ɹ ɹ Fig. 41: ΠϯλʔϩοΫ γϯνϩʔλ BLM ͷγ εςϝߏ Table 5: Pure CsI ͼٴ CsI(Tl) ͷ ཧಛ CsI(Pure) CsI(Tl) 4.51 4.51 g/cm3 1.86 1.95 1.86 1.79 cm 621 550 1000 ݮ ਰ 621 315 16 ऩ 2000 54000 ۶ ༥ C nm ns ɹ ph/mev ɹ Fig. 42: γϯνϩʔλ BLM ͷ ਅ (a) ϏʔϜϩε ɺϑΥτϚϧͷ ໘Λհ ࢠʹม Εɺઇ ݕ ग़෦ (b) ৴ ॲཧճ पล ʹ 2 ࢠ ग़Λ ى ଟஈͷμΠϊʔυ Ͱۃ 107 ഒఔ ʹ ෯ ΕΔɻ ͷ ݕ ग़৴ Ճ ث ਤ 43 ݕ ग़෦ ͷεϋϧʔϯλૠ ߦ ʹ ஔ Ε ৴ ॲཧճ ΒΕΔ ɺϑΥτ γϯνϩʔλ BLM ͷಈ ݧ ͷ ՌͰ ΔɻϏʔϜ Ϛϧ Βճ Ͱ 50 m Ε ΔͷͰɺSN ൺ ϩεʹಉ ظ ಘΒΕ ϓϦΞϯϓͷग़ ʢCH1, ԫʣ վળͷ Ί ݕ ग़෦ ͷϓϧξϯϓͱ Βʹ ෯ Ε ճ ʹΑΓ Δ ఆ ͷլͱ ΕʢCH2, ޙ ΒΕΔɻ৴ ॲཧճ ɺϑΥτϚϧ Βͷੜ ʣɺ ͷ ใϨϕϧʢCH3, ੨ʣʹୡ Δͱ ܯ ใ ৴ Λ ฏ ۉ Խ Δ Ίͷ ճ ɺ ͷ ग़ ʢCH4, ʣͷϨϕϧ High Β Low Γସ ग़ ҙͷ ج ४ ѹλ ʹ ܯ ใΛ ใ Δ Θ Δͷ ΔʢNormally Highʣɻ ط ଘͷΠϯ Ίͷൺ ճ ɺ ͷ ใঢ়ଶΛอ Δ Ίͷϥο λʔϩοϋγεςϝͱͷ ʹ ͳ ɺBLM ͷ νճ Βߏ Ε Γɺ ճ ͷ ఆ ൺ ใΛड ଈ ʹՃ ث ࢭ Δ ͱ Ͱ ճ ͷ ج ४ ѹ ෦ͷ PLC Λհ ԕ ͰมߋՄ ɻ ɺ ͷ ͷ ఆ ఆͰ ɺϏʔϜϩε ੜ ͱͳ Δɻ৴ ॲཧճ Λத ͱ γεςϝ Β ܯ ใ ใ Ͱ 0.8 μs Ͱಈ Γɺ ඪͷಈ ߏ ثػ ͷ ਅΛਤ 42(b) ʹ ɻ ΛΫϦΞ Δɻ 㸷㸫
ίξλ Βͳ ʣ ғͱͳδɻblm ͱίϧϝʔλλ ɹ ۦ ͷα ͳұ ͷϗʔϝϩεௐ ʹΑ ɺ cerl ͷฏ ۉ ϏʔϜ ॱௐʹ ڧ Ε Δɻ ɹ ɹ Fig. 43: cerl Ͱߦ γϯνϩʔλ BLM ͷಈ ݧ 5.3. cerl ௐ ӡసͱͷ cerl Λ CW ϞʔυͰӡస Δࡍʹ ɺϏʔϜϩε ʹΑΔ ઢͷ ੜΛͰ Δ খ Δ ͱ ཁͰ ΓɺຊষͰड़ छ BLM ͷग़ Λ ͳ Β ʹϏʔϜ ΕΔɻϏʔϜϩεͷ ௐ ʹ ɺਤ 44(a) ʹ ϏʔϜίϦϝʔλΛ Δɻ Ε ਫ ಔ ͷϩουλ Լࠨӈͷ 4 Βಠ ʹૠ Ͱ Δߏ ʹͳ ΓɺϏʔϜϩ εͷ ݪ ҼͱͳΔϏʔϜϋϩʔ ϏʔϜςΠϧͷআ ʹڈ ར ΔɻcERL ʹ ಉ ͷίϧϝʔλ ਤ 1 ʹ 5ϲॴʹ ஔ Ε Δ ɺϏʔϜͷΤωϧΪʔ ߴ ɹ ͳδͱϗʔϝϩεͱ ੜ Δ ઢ ʹ ٸ Ճ Δ Ͱͳ ثػ ͷ Խ ট Ίɺपճ෦ͷϏʔ Ϝϩε ʹݮ ΕΒͷதͰ ΤωϧΪʔηΫγϣ ϯʹ ஔ Ε 2 ʢਤ 1 தͷ COL01 ͱ COL02ʣ Fig. 44: ϏʔϜίϦϝʔλʹΑΔϏʔϜϩεௐ (a) ΞʔΫ෦ ίϧϝʔλͷ ( b) ϏʔϜϩεௐ ͷ ࢠ ಛʹ Ͱ Δɻ ͷα ͳίϧϝʔλλ Ϗʔ Ϝϩεௐ ͷ ࢠΛਤ 44(b) ʹ ɻάϥϑͷԣ Ͱɺ ʹ ϝπϯμϯϓͱଌఆ ϏʔϜ 6. ࠓ ޙ ͷ ʢ੨ʣͱμΫτத ΒίϦϝʔλϩουઌ Ͱͷ cerl 2013 12 ʹपճ෦Λ ΉՃ ث શମͰ ڑ ʢ ʣɺ ͼٴ ड़ ϑνπόʔ BLM ͷग़ ৴ ͷௐ ӡసλ ҎདྷɺCW ӡసʹ ΔϏʔϜ ͷ ෯ʢ ʣ ද Ε ΔɻίϦϝʔλΛμΫτ ͷ ڧ ΤϛολϯεΛҡ ߴόϯν த ʹ ૠ ͱɺ ʹΞʔΫ෦Ͱͷ ՙͷϏʔϜΛ Δ ΊͷϚγϯελσΟ ਫ਼ ϏʔϜϩε ݮ গ ɺ Βʹૠ Λଓ ΔͱϏʔϜͷ తʹߦΘΕɺண ʹ ͷ Λ Δ [29]ɻ ίξ Ͱ ϏʔϜ ମ ݮ গ Δͷ ɺ ΕΒͷ ͱฒߦ ϏʔϜͷϢʔβʔར ʹ Δɻ ɺ ͷ ͷ దͳίϦϝʔλૠ ४උ ਐΊΒΕ Γɺ2015 3 ʹ LCS ਤதʹ ҹͱ ғɺ ͳθ ϏʔϜϩε ʹΑΔ४୯৭ΤοΫεઢͷੜ ʹ [30, 31]ɻࠓ খʹͳΔ ϏʔϜ ʹ Ө ڹ Λ༩ ͳ ʢϏʔϜ ޙ ϏʔϜͱϨʔβʔͷ Β ͷτοϋεઢ ڧ 㸷㸫
BPM BPM 45 BPM 27 10 TeledyneSP6T 1 6 BPM 10 BPM 11 BPM BPM BPM SCM SCM OTR SCM OTRCOTRCOTR SCM YAG COTR [32] BLM BLM CsI BLM cerl ps 100 fs 1 SCM OTR CTR) [33] SCM OTR EO 20 MeV
7. cerl BPMSCMBLM cerl ERL [1] D. Douglas et al., Proc. of IPAC2012, New Orleans, pp. 2111-2115 (2012). [2] D. M. Gassner et al., Proc. of IBIC2014, Monterey, pp. 49-54 (2014). [3], 11,, pp. 1-5 (2014). [4] http://accwww2.kek.jp/oho/ohotxt4.html [5], OHO 08, 8 (2008). [6], OHO 08, 9 (2008). [7] F. Sannibale, Fundamental Accelerator Theory, Lecture No. 13, Michigan State Univ. (2007). [8] T. Suwada et al., Phys. Rev. ST Accel. Beams 6, 032801 (2003). [9] K. Yanagida et al., Phys. Rev. ST Accel. Beams 15, 012801 (2012). [10] P. Forck, Joint University Accelerator School 2011, Lecture Notes on Beam Instrumentation and Diagnostics (2011). [11] S. Sakanaka et al., Proc. of ERL2013, Novosibirsk, pp. 16-21 (2013). [12] http://www.ansys.jp/products/electromagnetics/hfss/ [13] M. Tobiyama et al., Proc. of BIW08, Tahoe City, pp. 205-209 (2008). [14] http://www.gdfidl.de [15], OHO 11, 2 (2011). [16] Y. Tanimoto et al., Proc. of IPAC2013, Shanghai, pp. 3315-3317 (2013). [17] http://www.i-tech.si/acceleratorsinstrumentation/libera-brilliance-plus/ [18] http://www.aps.anl.gov/epics/ [19] T. Shintake et al., Nucl. Instrum. Meth. A 254 pp. 146-150 (1987). [20] https://www.cst.com/products/cstps [21] B. Gitter, Technical report, UCLA Department of Physics (1992). [22] L. Wartski et al., J. Appl. Phys. 46, pp. 3644-3653 (1975). [23] Y. Hashimoto et al., Proc. of IBIC2013, Oxford, pp. 338-341 (2013).
[24] M. A. Tordeux et al., Proc. of EPAC2000, Vienna, pp. 1818-1820 (2000). [25], 6,, pp. 448-451 (2009). [26], 12,, THP017 (2015). [27] T. Obina et al., Proc. of IBIC2013, Oxford, pp. 638-643 (2013). [28], 12,, THP083 (2015). [29] S. Sakanaka et al., Proc. of ERL2015, Stony Brook, MOPCTH07 (2015). [30] R. Nagai et al., Proc. of IPAC2015, Richmond, TUPJE002 (2015). [31] A. Kosuge et al., Proc. of IPAC2015, Richmond, TUPWA066 (2015). [32] S. Matsubara et al., Proc. of IBIC2012, Tsukuba, pp. 34-37 (2012). [33], 12,, THP088 (2015).