PETRA III Status and Upgrade M Bieler for

PETRA III, Status and Upgrade M. Bieler, for the PETRA III Team ESLS XXIV, Lund, 30. 11. 2016 M. Bieler | PETRA III Status | 30. 11. 2016 | Page 1

Content > PETRA III Overview > PETRA User Operation 2016 > Plans for 2017 > PETRA IV M. Bieler | PETRA III Status | 30. 11. 2016 | Page 2

PETRA III Overview > 2. 3 km circumference > 6 Ge. V electrons > 20 damping wigglers > 14 (+10) undulator beamlines > 1 nm rad x 10 pm rad > 100 m. A > Top. Up operation, 1% beam current variation M. Bieler | PETRA III Status | 30. 11. 2016 | Page 3

PETRA III Overview > Max von Laue Hall: > 1/8 of the circumference of PETRA III > 8 double bend acromat cells > 14 undulator beamlines: § 2 m Undulators: 11 § 5 m Undulators: 3 (2+1) § 5 m Apple Undulator: 1 M. Bieler | PETRA III Status | 30. 11. 2016 | Page 4

User Operation 2016 Service Week Sunday (User Run) Userrun MDT Machine Development External Users from April 7 to Dec. 22. M. Bieler | PETRA III Status | 30. 11. 2016 | Page 5

User Operation 2016 User Run 2016 (as of Nov. 28 th) Scheduled time: 3881 h 48 % Timing Mode (40 or 60 Bunches) Availability 95. 9 % DISTRIBUTION OF OPERATION MODES 23% > Timing Mode 34% § 40 bunches, 192 ns : 14: 01 : 18: 01 : 00: 01 5 bunch patterns: TIMING 40 TIMING 60 CONT 240 CONT 480 CONT 960 : 46: 01 29% § 60 bunches, 128 ns > Continous Mode § 240 bunches, 32 ns § 480 bunches, 16 ns § 960 bunches, 8 ns 14% : 00: 01 0% M. Bieler | PETRA III Status | 30. 11. 2016 | Page 6

User Operation 2016 Continuous Mode, 960 Bunches: > 960 bunches > 8 ns > 100 m. A > 100 µA per bunch > 15 h lifetime Timing Mode, 40 Bunches: > 40 bunches > 192 ns > 100 m. A > 2. 5 m. A per bunch > 1. 5 h lifetime Problems in Timing Mode: > HOMs in cavities > Radiation damage > Spurious bunches M. Bieler | PETRA III Status | 30. 11. 2016 | Page 7

User Operation 2016 Timing Mode, 40 Bunches: HOMs in cavities. Main source of RF trips 2015: Reflected power. Main contribution from cavity 2 SL. 2016: Plungers at cavity 2 SL exchanged in August, cavity 2 SL back in operation, no more problems. Reflected power trips mainly occur in timing mode. March 2016: Strong vacuum event. Cavity 2 SL detuned, decoupled from the RF waveguide. Since then operation with 11 of 12 cavities. M. Bieler | PETRA III Status | 30. 11. 2016 | Page 8

User Operation 2016 Timing Mode, 40 Bunches: Radiation damage. Beam life time 1. 5 h, compared to 15 h with 960 bunches. 2016: Additional shielding against neutrons introduced, no more problems. Radiation levels 10 times higher. Radiation damage increases. Single event upsets in electronics: Spontaneous firing of an injection kicker, only in 40 bunch mode. Beam pipe Kicker magnet Kicker pulser M. Bieler | PETRA III Status | 30. 11. 2016 | Page 9

User Operation 2016 Timing Mode, 40 Bunches: Spurious bunches. Bunch separation 192 ns. Typical pump – probe time delays: 150 ns The multibunch feedback is used to resonantly excite the spurious bunches > 2 ns and clear them. Spurious bunches at the level of 10 -8 disturb the measurements. Main bunch Spurious bunches at -8, 2, 8 ns Main bunch +/- 2 ns gated out by the experiments M. Bieler | PETRA III Status | 30. 11. 2016 | Page 10

Availability 2016 105. 00 PETRA III Availability 2016 95, 7 % 100. 00 95. 00 90. 00 Studies, Testruns AV_W weekly average goal TARGET 85. 00 yearly average AV_Y 80. 00 75. 00 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 Calendar Week M. Bieler | PETRA III Status | 30. 11. 2016 | Page 11

: 00: 01 : 00: 01 IL VA C IN SA ST FE TY OP UN LIN KN AC OW PO N W SE ER K _G I LI. . . FE DE ED SY BA TI CK M IN G LO NG PIA _I NS T IN TL SC HE EX DU P LE D PS W K RF SA ST FE TY OP UN LIN KN AC OW N PO W ER SEK _G I LIT. . . D FE ES ED Y BA TI CK M IN G LO NG PIA _I NS T IN TL SC HE EXP DU LE D IN C VA IL K W PS RF Availability 2016 40 30 20 10 0 SUM FAULTS SUM FAILURE TIME M. Bieler | PETRA III Status | 30. 11. 2016 | Page 12

Availability 2016 Definition: Availability = delivered beam time scheduled beam time This rather unique ‘warmup time’ (recommended by MAC in Nov. 2011) reduced the availability in 2016 from 97% to 95. 7% Definition: Fault: Every beam loss of more than 25%, plus 1 hour (or 1 downtime) M. Bieler | PETRA III Status | 30. 11. 2016 | Page 13

MTBF 2016 Definition: delivered beam time Mean Time between Failures = : 00: 01 number of faults PETRA III MTBF 2016 41: 00 h MTBF_W : 00: 01 MTBF_Y : 00: 01 : 00: 01 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 M. Bieler | PETRA III Status | 30. 11. 2016 | Page 14

Status of Extension Beamlines 2 extension beamlines are operational: PU 64, PU 65 M. Bieler | PETRA III Status | 30. 11. 2016 | Page 15

Plans for 2017 Januar 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 a b a b c b d f c b d f c b d f e f b a e f b a g j Februar g j g j g g j h g j h k k k m p m p m h p März m p m r A A A A B A B A B Test Run C B MDT C B April Test Run MDT Test Run. . MDT. . Mai . . MDT. . . Juni. . . MDT MDT. . Service Week & Ausweichtermin Interlock P 22 & 23 . . MDT . . . MDT. . 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Juli. . . s s s s t s t s t s u s u s u u w u w u w Aug. u w r r r A A A Test Run. . . MDT. Sep. . . Okt. . . MDT MDT. . Service Week . . . MDT. . . Nov. MDT. . . Tdo. T ? . Service Week Tdo. T ? . . MDT. Shutdowns in Jan/Febr and July/Aug M. Bieler | PETRA III Status | 30. 11. 2016 | Page 16 Dez. . . MDT. . Shutdown Shutdown Shutdown

Plans for Winter 2016/2017 Exchange of one undulator at PU 1 Modification of straight section east: Room for 3 insertion devices for PU 21 Installation of front end for PU 21 in the tunnel, no hole in the wall Installation of new undulators PU 22 -24 Installation of personal interlock for hutches of PU 22 -24 Realignment of section east, connection between PXE and old tunnel M. Bieler | PETRA III Status | 30. 11. 2016 | Page 17

Plans for Summer 2017 Exchange of last absorber in damping wiggler section north (PU 61) Installation of front end for PU 61 in the tunnel, including a power absorber, no hole in the wall Completion of beamline PU 21, including the hole in the wall Installation of personal interlock for hutches of PU 21 M. Bieler | PETRA III Status | 30. 11. 2016 | Page 18

PETRA IV, Motivation M. Bieler | PETRA III Status | 30. 11. 2016 | Page 19

PETRA IV, Parameter Range M. Bieler | PETRA III Status | 30. 11. 2016 | Page 20

PETRA IV, Timeline M. Bieler | PETRA III Status | 30. 11. 2016 | Page 21

PETRA IV: Design Strategy > On axis injection with existing injectors > New lattice for the synchrotron y <---> x > additional booster ring, or linac? > Scaling of the ESRF cell 3 arc > Phase space exchange solution (double octants y = hor. , x twist in 4 D-phase) = vert. 3 arc octants injection section undulator sections x = hor. , y = vert. > Magnet design: quads, combined function magnets and dipoles with longitudinal gradient > girder design: alignment and installation concepts x <---> y > fast kickers: on axis injection > vacuum design: small chambers > More details in the following workshop M. Bieler | PETRA III Status | 30. 11. 2016 | Page 22

Thank you for your attention! M. Bieler | PETRA III Status | 30. 11. 2016 | Page 23