PETRA III – Recommissioning. Plans PETRA III Team DESY PETRA III meeting Status january, 2015 1 1

PETRA III Extension, North 2015: Beam lines 64 + 65 2

Meeting Jan 05, 2015 Schedule Update 3

Schedule Jan 2015, Status Nov/Dec 2015 Project meeting Nov 13, 2014 Test Polaritaeten ? Ejektion aus DESY ? Installation Undulatoren PU08 bis 5 .Dez. PU02 Jan. 2015 PU64 / 65 Service Week April 2015 ? PU08 PU02 ??? 4

Recommissioning Schedule 2015, Status Aug. 15, 2014 15.08.2014 Discussion with FS, User Run 30.03.2015, External User 27.04.2015 5

User Run – Filling pattern S:\user\groups\has\ohseeck\public\2015 6

Meeting Jan 19, 2015 Schichtplan 7

Commissioning with Beam Check diagnostics current monitors, test signals scopes (triggers, software integration) screen monitors BPMs Check magnet server set power supplies polarity check of all magnet 3 shifts Cycle the magnets 4 shifts new files massa oben, unten start file Demagnetize the PQK, PQL, … magnets in the Extension region corrector settings from the last file (injection  wiggler section North, New Octant some work during power supply commissioning Transfer line 2 shifts Eject beam from DESY into the the E-Weg modified quadrupoles ! 8

Commissioning with Beam (cont.) First turn steering  stored beam 9 shifts kicker, septa settings (any changes ?, new pulsers) rf frequency bunch marker system timing system orbit correction chromaticity rf phases Accumulation, multi bunch injection 3 shifts beam current < 5 mA check vacuum pressure Basic Optic checks 2+2 shifts aperture (two orthogonal coils) bumps (extension section) dynamic aperture (kicker) Beam Based Alignment (Extension region) ORM chromaticity, coupling 9

Commissioning with Beam (cont.) MBFB basic set-up 2 shifts goal : I > 20 mA longt. FB transverse FB timing system Optics checks (20 mA) 2 + 3 shifts (2 blocks) Beam based alignment ORM Correct Optics Verify correction 10

Further Commissioning with Beam Orbit + Dispersion correction (20 mA) 3 shifts Golden orbit (without beam lines) dispersion correction emittance diagnostics Fast Orbit Feedback 3 shifts set-up of the system (matrix) check software check entlastungs server Check machine protection system 2 shifts Dynamic Aperture 1 shift Impedance / Instabilities 2 shifts intensity dependent tune shift ion instabilities ? 11

Further Commissioning with Beam (cont.) New Octant ( 1 mA runs ) 5 shifts Golden orbit (with beam lines) Higher beam intensities 5 shifts goal I > 50 mA different filling schemes RF settings (cavities) New Octant ( 1 mA runs ) 5 shifts Golden orbit (with beam lines) Activation of NEG coating, strips ? Advanced studies, Intensity dependent ORM Study of beam losses, beam halo , Diodes at scrapers 12

Meeting Jan 26, 2015 Einbaupositionen Magnete #004 = spare 13

HF Kopplertausch 20.01.2015 HF Koppler getauscht:  SL_Cy3 und SL_Cy4  14

E-Weg 15

Netzgeraete (ExO) 16

Netzgeraete (NR) 17

Netzgeraete (Acc. view) 18

Fileoperator 19

Fileoperator (including expert files) 20

Meeting Feb 02, 2015 Mo Interlock, FS Di 03.02.2015 Inj. E-Weg Spaetschicht Mi 04.02.2015 Polaritaeten PXN Spaet 21

E-Weg : UGP  PETRA III 22

E-Weg 120 m  PETRA III QE 123 F 131 D 149 F 158 D Schirm 146 m b_x = 13 m, b_y = 70 m Schirm 161 m b_x = 36 m, b_y = 33 m 23

Integration of new components Data SIZE of Groups of power supplies, order of correctors in list, BBA PS: Acc View Libera Server 24

Schichtplan ab naechste Woche Wer Wann Nicht: 25

Meeting Feb 09, 2015 Di 03.02.2015 Inj. E-Weg Polaritaet QE 123, 131, 149, 158 war falsch, Umpolen am Netzgeraet 26 26

Feb 04, 2015 Erdschlusss an zwei PQK Magneten: OR97 OR 89 Isolierung der Schrauben defekt 27

Feb 04, 2015 Feb 04, 2015 Wasserleck SWL 83m, DDW (Differenz Druckwaechter) Feb 05, 2015 falsches Ejektionsfile bei DESY II, beam bump Arbeiten an der Massage Procedure QF, QD rampen zu langsam, (16 bit  18 bit ADC) PETRA III: Polaritaeten im Tunnel Quadrupol Q3_NR_126 (vermutlich im Tunnel verpolt) irrtümlich wurde ein PDA fuer verpolt gehalten, da der   Strom in der Hauptspule zu klein war im Vergleich zur Korrekturwindung Strahl bis Extension Nord 28

Feb 06, 2015 ~ 1 Umlauf in PETRA 29

Feb 07, 2015 Polwender am 08.02.15 erstmal blockiert, do sonst nicht richtig in der massageprozedur beruecksichtigt !  Diskussionsbedarf 30

Feb 08, 2015 Am Sonntag Probleme mit der Steuerung eines Kuehlturms Probleme mit dem DCCT des QF Kreises 31

Status versus plan Check diagnostics Check magnet server current monitors, test signals scopes (triggers, software integration) screen monitors BPMs Check magnet server set power supplies polarity check of all magnet Cycle the magnets new files massa oben, unten start file Demagnetize the PQK, PQL, … magnets in the Extension region corrector settings from the last file (injection  wiggler section North, New Octant Transfer line Eject beam from DESY into the the E-Weg modified quadrupoles ! 32

Plan fuer diese Woche: 9 – 15.02.15 Sichere Massage-Prozedur Alle Netzgeraete bereit First turn steering Strahl speichern First turn steering  stored beam 9 shifts kicker, septa settings (any changes ?, new pulsers) rf frequency bunch marker system timing system orbit correction chromaticity rf phases 33

Further steps Accumulation, multi bunch injection 3 shifts beam current < 5 mA check vacuum pressure orbit correction Basic Optic checks 2+2 shifts aperture (two orthogonal coils) bumps (extension section) dynamic aperture (kicker) Beam Based Alignment (Extension region) ORM chromaticity, coupling 34

Meeting Feb 16, 2015 Nachtrag: Aenderung der Massage Prozedure, wegen Limitierung am Dipolnetzgeraet fuer die Extension Nord und Ost PETRA Massage: PQK werden extra massiert !   Massage PETRA+Korrektoren+EWeg Massage PETRA nur Extensiom PQK PETRA Sendern: Einsenderbetrieb Alle Cavities sind am Sender Süd Links angeschlossen ! Probleme Klystron Sued Rechts 35 35

NN 36

First stored beam Feb 13, end of late shift 37 37

Feb 14, Measurements with stored beam QA3_NOR_70. 38

Feb 14, 2015 Check of magnet current in the tunnel 39 39

Feb 15, restore correct settings of quads 40 40

Feb 15 / 16 orbit correction + first accumulation 41 41

Monday, Feb 16 Interlock text experiments Morning: TueV Interlock test FS Fix problems with power supply electronics 42 42

Feb 16, 5 mA at end of late shift 43 43

Commissioning of Feedback Systems Feb 17 : transverse feedback + tune measurement Feb 18 : longt. feedback transverse feedback (problems solved) 44 44

Investigation of beam optics Feb 17 : 45 45

Beam Optics and BBA Feb 17 : 46 46

BBA, Feb 19 Ost oder Nord ? 47 47

BBA, Feb 20 48 48

BBA, Feb 20 (cont.) 49 49

BPM Feb 17 : Feb 18 : 50 50

Feb 19 BPM Libera electronics settings for different filling pattern 51 51

Feb 20 BPM 52 52

Feb 17 / 18: Windows restart / Verdunkelung 53 53

Magnets 54 54

Software 55 55

Software (cont.) 56 56

Software (cont.) 57 57

Software (cont.) 58 58

Feb 20 59 59

Wochenplan 23 – 27.02.15 BBA Power supply electronics Orbit correction Dispersion correction ORM Fast orbit feedback Aperture scans, extension Chromaticity Dynamic Aperture Collimator Settings Higher Intensities > 50 mA Power supply electronics Software File operator configuration (massage) 60 60

Meeting 02.03.2015 61 61

Last week BBA Orbit correction (Java Programm, finally working) Dispersion correction ORM (Optics corrected on Friday) Aperture scans, extension Chromaticity Dynamic Aperture Collimator Settings Software (Magnet server) File operator configuration (massage) Higher Intensities > 50 mA (during the weekend 60 mA) Emittance diagnostics 62 62

This week, 02.03 – 06.03.15 Dynamic Aperture Tune shift with intensity BBA Dispersion correction (bump in east ?) Optics correction, ORM (2nd iteration) Fast orbit feedback Aperture scans Higher Intensities > 60 mA (different filling pattern) 63 63

Thank you for your attention ! 64