Wojciech Roseker. LCLS Workshop: Application of Coherent X-rays at the LCLS Split and Delay Unit for XPCS at Free Electron Lasers

Transcription

1 Spl d Dly U f XPCS F El L Wjh Rk LCLS Wkhp: Appl f Ch X-y h LCLS Spl d Dly U f XPCS F El L Pg

2 Spl pul XPCS Cp f h dly u Expl up Pf f h dly u Clu Oulk Spl d Dly U f XPCS F El L Pg

3 Spl Pul XPCS hd f ug ul-f dy Su f w pkl p! Id pul! Ch llu D Spl C ly v dly 6+#0%-#"%%(3-4-"7-")(%3"#4&) Mu f h dd h g p fu f h! C LCLS Ul f S Iu: Cpul Dg Rp (007) Thl Dg Rp f h Eup XFEL (00) Spl d Dly U f XPCS F El L Pg " !!T [] 4

4 T uu f h XFEL h Eup XFEL! 00! 600 " #! 994! 994 LCLS SLAC! > 8 * Th gl pvd ubl dly bw h ph pul h pl p dpdly f h uu f h u! u X-y dly l! u Spl # Thl Dg Rp f h Eup XFEL (007) * LUSI Cpul Dg Rp (007)! dly Spl d Dly U f XPCS F El L Pg 5

5 Spl Pul XPCS Cp f h dly u Expl up Pf f h dly u Clu Oulk Spl d Dly U f XPCS F El L Pg 6

6 Tw bh p f h hd X-y dly u Bgg gy Fxd 90 vl g gy L Puld X-y u Tl hg h dly ph B x! L Lu gy B Spl!L x(l - L! ) pd f lgh Spl d Dly U f XPCS F El L Pg 7

7 Spl Pul XPCS Cp f h dly u Expl up Pf f h dly u Clu Oulk Spl d Dly U f XPCS F El L Pg0

8 (b Cp d ) uf p hwh fl (d6h h Lu gy, whh llud fgu b T fl p b h 0(α I h y Lu 90 ) A pv vluf b)bap dpv )F d F 6 T 0I λ h y Lu b (α 90 ( λ fl b l y pl b! ± d h -y plll h h ppdul h d h whh V F V π h Lu gy, llud fgu b Wh h uf l F π 0 I h y Lu b (α 90 ) A pv vlu FB h λ y b Wh 0 whh F B fl Lu gy, llud fgu u λ h d L -y ddddw y Bgg yl g u L y F h w V Fgu 3 llu h π hkl u fl f[kv] Dw fπwdh plll Lh b Vh Fwhh Wh ppdul yllud h h l pl! ± d h B d h Lu gy, fgu b y Egy [ ] h plll ppdul h l pl h b!u ±!E/E x 0^6 I d B I d f u d d f dfy wfuhh fl L uh w y u u X-y p ulzg d p dvg f l u l y y Fgu 3 llu h y Bgg yl gy h S() I h plll ppdul h l pl b! ± u h Fgu 3yllu h B y y I f ll uu 0F g y ll f g gbdfy p ulzg f h b [3] g S(5) u g g X-y uh fl h dvg yd X-y p ulzg uh fl dfy h dvg pl y Fgu 3 llu h y Bgg u B 0 0 fl l l g gg y f h kg u f Du h uv hfd f Bh ) S(553) f h b [3] h g X-y p ulzg uh fl dfy h dvg b 0 f h b [3] g g ( ) F 0 y 0 B gl by )h h [] w Du f Du f h f h kg uv h b [3]kg uv hfd f h Bg h f h f fl ) b gl bygy [] h Bgg Lu gy ( Du f f h kg uv hfd glby [] y ( b) g! gl by []!!! ( b)!! ( b)( (4 ) b 0x0! b) ( ) (! " b ( ) (5 8 ) 6 b ( d "h d d fld h b - hf b Thdp xp h g g ( ) d d " B ggb g d f h d d fld b Th p b d B " y 5) y h fl d h fl d lywth f p fld xp h d gd (4 y F f5) ghb l b d y w λ fd d f y fl 0 h y fll b ygu d f p g Th U L u F g h d f f f fld h w Spl d Dly f XPCS F El g h l λ h T 0 Pg d T f y 5)

9 B pl g Dly u Thl dl: 8 g 8 pz u 8 wvl g 7 l g Dg : 9 z hb APD B fl g APD Spl d Dly U f XPCS F El L Pg

10 35 Dp f bl M 7 Rll bld SAXS l hb Dly l ID0C bl ESRF Fgu 3: Dly u h ID0C xpl huh Th X-y ph dd Spl d Dly U f XPCS F El L by h yllw l Pg 3

11 Spl Pul XPCS Cp f h dly u Expl up Pf f h dly u Clu Oulk Spl d Dly U f XPCS F El L Pg4

12 Cyl p I0 BC BC I G f h dly SP BC4 BC3 SP Pv f h b h BC5 BC Spl d Dly U f XPCS F El L Pg5

13 Pf f h S(5) Bgg p Egy 839 kv BC BC3 Expd FWHM "d S() S(333) BC S(5) Exp pfd Tk bl ESRF Exll quly f S(5) yl!!! BC4 Nlzd Dffd Iy ud d f luld FWHM 8 µd !" -!" [µd] Spl d Dly U f XPCS F El L Pg 6

14 Cyl p I0 BC BC4 BC SP I G f h dly SP BC3 Pv f h b h BC5 BC Spl d Dly U f XPCS F El L Pg 8

15 Pf f h b pl Rqu: pl d d h b wh h ll pbl bp B plg p ) E839 kv Id b Rfld Fwd dffd Tl x Exp pfd D4 bl DORIS III 0 Thk 98 " Fwd dffd 08 Fwd dffd Bgg fld Nlzd Nlzd Iy Iy Iy bbd Rfld Thk [µ]!" [ ] Pdll#ug ff Ewld P (965) Spl d Dly U f XPCS F El L Pg 9

16 Thughpu f h dly u Thughpu f S(5) p S() S(333) I0 BC BC4 BC SP I Thughpu (I/I0) Cyl ud luld SP BC3 S(5) 60x0-3 68x0-3 ID0C bl ESRF BC5 BC Spl d Dly U f XPCS F El L Pg 0

17 Cyl p G f h dly Pv f h b h Spl d Dly U f XPCS F El L Pg

18 Mu f dly Tpl p f h APD Cu FWHM! Expl up f ug dly FWHM 35 p CFD TAC ADC MCA START STOP CFD DELAY BUNCH CLOCK PC MASTER CLOCK T T [p] [p] APD STORAGE RING FWHM "(Pul Lgh) + (Rlu f D Sy) R : 0 x FWHM 3 p Spl d Dly U f XPCS F El L Pg

19 Dly u Spl d Dly U f XPCS F El L Pg 3

20 Dly u !!5!! Dly [] T [] !00!400 Appld ph dff!l [] Appld ph [] Fgu 40: T p pdg dlyd X-y pul ud fu f ppld ph dff L bw h w bh Th xu ud Spl d Dly U f XPCS F El L Pg 3 τ 6

21 Dly u Dly! [] Mud dly E 43 p " S [p]!! -!! Appld dly!l!! () 67 p Appld ph dff "L [] Spl d Dly U f XPCS F El L Pg 4

22 Rpdubly Dly! []! Appld dly Mud dly -!! -! 0 Rpdubly 3! [p] 4 Dly u p p N ( ) 3 p N Appld ph dff!l [] Spl d Dly U f XPCS F El L Pg

23 Rlu Exp :! () 67 p! (x) 43 p Rlu f d y R 3 p Mud dly! dd by h d lu Oh u f : Ab Tpu : 00 f/ K Mh : 7 f XFEL pul lgh : 00 f Spl d Dly U f XPCS F El L Pg 6

24 Cyl p G f h dly Pv f h b h Spl d Dly U f XPCS F El L Pg 7

25 Expl up f l pkl p u Dd wdw Dly U S(333) hl-u h Dly U!T Rllbld Sl SAXS hb wh Gud Sl Flgh ub B p P CCD d Spl ξ λ R h u d ξ l λ λ λ 6 µ x 0 µ (hzl x vl) 8 µ Sl z: 9x9! Spl: S Spl d Dly U f XPCS F El L Pg 8

26 Tw-bh fgu BC BC BC4 SP SP BC3 - q z[å ] BC5 BC6 - q x[å ] b h gfly dgdd Pbbly dy 08 04! /M 06 ± 003 q 35 x0-3 Å - Pbbly dy 08 04! /M 03 ± 003 q 3 x0 Å Spl d Dly U f XPCS F El L Pg30

27 Why d w d dly u? Cp f h Dly u Expl up Pf f h Dly u Clu Oulk Spl d Dly U f XPCS F El L Pg3

28 F hd X-y dly u!!! Suful pl f h 90 dg g gy h dly u vfd by h pf E839 kv d E4 kv Th hughpu f h Dly u wh S(333) h 839 kv 06% F d lbl hg f h dly up 6 wh lu f 67 p ( vlu dd by h ud d y) Th b h gfly dgdd dg h fbly f pfg h xp fuu XFEL u Dly u dy f XFEL u Spl d Dly U f XPCS F El L Pg3

29 Akwldg Ghd Gübl, H Fz, A Eh, H Shul-Shppg, Olf Lupld, T Auh, Ch Gu, Lz Sdl, K Rk, Wlfgg Clb HASYLAB Ay Rb Fd Z Spl d Dly U f XPCS F El L Pg 35