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Stand van Zaken TRI  P FOM programma 48 Speciaal – Atoomfysica Aspecten AMO-werkgemeenschapscommissie 6 october 2004 Klaus Jungmann, KVI.

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Presentatie over: "Stand van Zaken TRI  P FOM programma 48 Speciaal – Atoomfysica Aspecten AMO-werkgemeenschapscommissie 6 october 2004 Klaus Jungmann, KVI."— Transcript van de presentatie:

1 Stand van Zaken TRI  P FOM programma 48 Speciaal – Atoomfysica Aspecten AMO-werkgemeenschapscommissie 6 october 2004 Klaus Jungmann, KVI

2 project 2001   2005 TRI  P T R I  P TRI  P Trapped Radioactive Isotopes:  icrolaboratories for Fundamental Physics Theory Nuclear Physics Experiment Nuclear Physics Atomic Physicsfunding: project  program 2001   2013 (4 years setup phase) people (scientists) : people (scientists) : G. P. Berg, U. Dammalapati, S. De, P. Dendooven, O. Dermois, M.N. Harakeh, R. Hoekstra, K. Jungmann, R. Morgenstern, C.J.G. Onderwater, A. Rogachevskiy, M. Sanchez, O.Scholten, M. Sohani, R. Timmermans, E. Traykov, O. Versolato, L. Willmann, H.W. Wilschut + many more

3 Motivatie- Waar gaat het over ?

4 Fundamental Interactions – Standard Model Physics outside Standard Model Searches for New Physics Physics within the Standard Model

5 TRI  P Possibilities to Test New Models  Low Energies & Precision Measurement High Energies & direct observations

6 TRI  P Some Questions related to TRI  P Physics Origin of Parity Violation in Weak Interactions Origin of Parity Violation in Weak Interactions (nature prefers lefthandedness) (nature prefers lefthandedness)  details of  -decays  details of  -decays Na, Ne isotopes Na, Ne isotopes Dominance of Matter over Antimatter in Universe ? Dominance of Matter over Antimatter in Universe ? CP - Violation, Time Reversal Symmetry, Parity Violation CP - Violation, Time Reversal Symmetry, Parity Violation  permanent electric dipole moments ?  permanent electric dipole moments ? Ra isotopes Ra isotopes

7 Atoomfysica- Waar kan men dat binnen TRI  P vinden ? Bijna overal !

8

9 De wereld volgens Escher spiegelbeeld tiid   tijd H.W. Wilschut materie antimaterie af terug naar af meet schending tijdsomkering niet CERN maar met normale materie b.v. elektrisch dipoolmoment e + e - P C T

10 Concept op het KVI

11 TRI  P Atomic Physics Nuclear Physics Particle Physics Vanaf het begin: Atoomfysica in bijna elke onderdeel Elk subsysteem moet met hoge effizientie en betrouwbaarheid werken

12 Realizatie van het Concept

13 TRI  P Combined Fragment and Recoil Separator RFQ cooler/buncher MOT AGOR cyclotron Ion catcher (gas-cell or thermal ioniser) Low energy beam line MOT D D D D Q Q Q Q Q Q Q Q Magnetic separator Production target Wedge

14 De Separator werkt sinds zomer 2004 sinds zomer 2004

15 Dispersive plane Achromatic focus QD AGOR beam T1 Traps DD TRI  P Separator commissioning Detector 2 Detector 1 B  = p/q  v A/Z TOF  A/Z  E  A 2 21 Na 20 Ne 21 Na 20 Ne Yield of 21 Na at the focal plane: Experiment observation: 5.3 MHz/kW

16 Hoe remmen wij de ionen af ? Botsingen in gas ? Botsingen in gas ? Vaste stoffen ? Vaste stoffen ? Verzamelen op een folie ? Verzamelen op een folie ?  Testopstellingen nodig

17 ION-CATCHER EU-RTD Meeting Leuven 2003: Bottom line: NOT ionization potentials of collision partners BUT  01 / (  01 +  10 ) are important  Use W/Re Thermal Ionizer for alkali and alkali earth: > 90% efficiency

18 RFQ Novel Technology

19 TRI  P RFQ Cooler

20 RFQ in vacuum Transverse cooling Velocity damping With and without a drag voltage on the segments Tests: Buffer gas pressure (He): ~10 -1 mbar RFQ ion coolerRFQ ion buncher 10eVthermal Trap position Switching on end electrodes ~10 -3 mbar TRI  P RFQ prototype test 330 mm

21 Optimization using the simulations Main goal: collect all ions Confinement and transmission Optimize parameters (regions of stable operation): pressure and type of gas aperture diameters beam settings at entrance drag voltage step potentials on separation electrodes accumulation time (buncher) trap potential depth and shape Questions: phase dependence (cooler-buncher) phase dependence (switching) where do we loose ions (why?) ~ 2 eV q=0.5 p=0.025 mbar drag voltage=0.5V Buffer gas pressure RF: 1500 kHz, 21 Na +, 10 eV 950 m/s maximum transverse velocity 0.5 V drag voltage step Gas pressure  drag voltage Trapped Radioactive Isotopes:  icro-laboratories for Fundamental Physics

22 Een nieuw laser laboratorium voor nauwkeurige meetingenontstaat

23 TRI  P Laser Hardware & Electronics New laser equipment arrives Ti:sapphire laser Dye laser Semiconductor laser Diagnostic equipment Technical personnel …

24 Waar Staan Wij in de Fysica? Twee Hoofdactiviteiten (KVI groep ): Twee Hoofdactiviteiten (KVI groep ):  -verval  -verval edm’s (Radium, Deuteron) edm’s (Radium, Deuteron) Buitengebruikers: Buitengebruikers:   a - verval (Naviliat, Caen; begin October 2004)   a - verval (Naviliat, Caen; begin October 2004) 19 Ne - verval (Young, North Carolina; werkt al mee) 19 Ne - verval (Young, North Carolina; werkt al mee) Belangstelling aangegeven:Belangstelling aangegeven: Pariteitsschending in Cs isotopen (Bouchiat)Pariteitsschending in Cs isotopen (Bouchiat) Pariteitsschending in enkele ionen (Fortson)Pariteitsschending in enkele ionen (Fortson) (zitten wachten op faciliteit en menskracht)

25  -verval Correlaties begin: 21 Na later: 20 Na, 19 Ne

26 Vector [Tensor] ++ e Scalar [Axial vector] ++ e New Interactions in Nuclear and Muon  -Decay In Standard Model: Weak Interaction is V-A In general  -decay could be also S, P, T  nuclear  -decays, Experiments in Traps Scielzo,Freedman, Fujikawa, Vetter PRL 93, (3 Sep 2004) 21 Na : a exp = (91) a theor = 0.558(6)  branching ratio measurement needed

27 The role of (optical) trapping Optical trap sample isotope selective, spin manipulation point source, no substrate recoil (ion) mass spectrometry From KVI atomic physics: He 2+ + Na S. Knoop Ideal environment for precision experiments 1 a.u.=15 A  eV

28 Permanente Permanente Electrische Dipool Momenten Spektrokopie van Ba,Ra Spektrokopie van Ba,Ra Haalbaarheidsexperimenten Haalbaarheidsexperimenten Deuteron EDM Deuteron EDM EDM experimenten EDM experimenten

29 EDMs Origin of EDMs from C.P. Liu

30 EDMs Origin of EDMs from C.P. Liu

31 TRI  P Radium Permanent Electric Dipole Moment Benefits of Radium near degeneracy of 3 P 1 and 3 D 2 near degeneracy of 3 P 1 and 3 D 2  ~ enhancement  ~ enhancement some nuclei strongly deformed spin > 1/2 some nuclei strongly deformed spin > 1/2  nuclear enhancement  nuclear enhancement 50~1000 (isotope dependent) 6 Ra also interesting for weak interaction effects Anapole moment, weak charge (Dzuba el al., PRA 6, )

32 Radium Spectroscopy Data Radium Discharge analyzed with grating spectrometer Ebbe Rasmussen, Z. Phys, 87, 607, 1934; Z. Phys, 86, 24, Resolution ~ 0.05 A, 99 lines, absolute accuracy [A][A] Corrections in deduces energy levels 1S0-1P1 1S0-1P1 1S0-3P11S0-3P1 H.N. Russel, Phys. Rev. 46, 989 (1934) [A][A] Similar to Barium  identification as alkaline earth element

33 Preliminary Transition Rates as calculated by K. Pachucky (also by V. Dzuba et al.) Trappist’s View 3*10 4 s *10 8 s -1 7s 2 1 S 0 7s 7p 1 P 1 7s 7p 3 P 7s 6d 1 D 2 7s 6d 3 D *10 5 s -1 3* *10 6 s -1 4*10 3 s -1 Cooling Transition Repumping necessary 1.4*10 -1 s -1 Weaker line, second stage cooling Repumping

34 Preliminary Transition Rates as calculated by K. Pachucky (also by V. Dzuba et al.) Trappist’s View 3*10 4 s *10 8 s -1 7s 2 1 S 0 7s 7p 1 P 1 7s 7p 3 P 7s 6d 1 D 2 7s 6d 3 D *10 5 s -1 3* *10 6 s -1 4*10 3 s -1

35 Trappist’s View 7s 6d 3 D *10 8 s -1 7s 2 1 S 0 7s 7p 1 P 1 7s 7p 3 P 7s 6d 1 D *10 6 s -1 Consequences for Laser Cooling with 1 S P 1 Smaller Enhancement of EDM Longer Lifetime of 3 D 2 in E-Field Energy levels calculation 3 D-States are lower J. Biron & K. Pachucky (priv. Comm.) 7s 6d 3 D 1 2 3

36 553.7 nm nm 6s 2 1 S 0 6s 6p 1 P 1 6s 6p 3 P 1 6s 5d 3 D  3  m 1.4 µsec 8.4 nsec 40% 60% Creation of intense beam of meta-stable D-state atoms Barium Intercombination line 1 S 0 – 3 P 1

37 FM Saturated absorption spectroscopy of I 2 Diode Laser nm I 2 Oven (560ºC) M1 M3 BS PD Lock-In Amp Feedback Control VCO /4 AOM To Beat note Lock point Reference Line P(52)(0-15) transition f=f 0 +f 1 Sin(wt) w=90.5kHz 599 MHz away from 1 S 0 – 3 P 1 in 138 Ba (almost one line/5GHz from nm)

38 1 S 0 – 3 P 1 transition in an External Magnetic field  = g J µ m J B  IS = 138 Ba– 136 Ba= (3) MHz 2.3 MHz (FWHM) Decay rates Branching into 3 D States Barium to test atomic theory

39 Competitors

40 Some EDM Experiments compared 1.6  Start TRI  P 199 Hg Radium potential d e (SM) < molecules: New 2004 from muon g-2: d (muon) < 2.8  after E.Hinds

41 Spin Offs Wat wij in richting toepassingen doen

42 TRI  P 41 Ca The ALCATRAZ Experiment a precursor for TRI  P (R. Hoekstra, R. Morgenstern et al.)

43 Stand van Zaken Stand van Zaken Atoomfysica is een sterke poot van TRI  P Atoomfysica is een sterke poot van TRI  P TRI  P is (nog) in opbouw fase TRI  P is (nog) in opbouw fase Al eerste experimenten (meer technisch) met impact Al eerste experimenten (meer technisch) met impact 21 Na  -verval branching ratio eerste serieuse meeting 21 Na  -verval branching ratio eerste serieuse meeting in voorbereiding in voorbereiding KVI groep gefocusseerd op  -verval en edm’s, waar KVI groep gefocusseerd op  -verval en edm’s, waar goede kansen voor impact bestaan goede kansen voor impact bestaan zorgvuldige, maar efficiente aanpak zorgvuldige, maar efficiente aanpak Samenwerkingsverbanden met gerenomeerde Samenwerkingsverbanden met gerenomeerde atoomfysici zijn ontstaan; verdere mogelijkheden atoomfysici zijn ontstaan; verdere mogelijkheden zitten wachten zitten wachten

44 Key Experiments TRI  P TRI  P will be a user facility TRI  P will be a user facility  open to outside users KVI will concentrate first on KVI will concentrate first on  electroweak tests  electroweak tests *  - decay ( 20,21 Na, 19 Ne) *  - decay ( 20,21 Na, 19 Ne) * electric dipole moments (Ra) * electric dipole moments (Ra)  applications  applications * ALCATRAZ (rare Ca isotope detection) * ALCATRAZ (rare Ca isotope detection) (R. Hoekstra, R. Morgenstern) (R. Hoekstra, R. Morgenstern) Networks jointly address Networks jointly address  technology and science issues  technology and science issues * NIPNET, KVI coordinator (H.W. Wilschut) * NIPNET, KVI coordinator (H.W. Wilschut) ION Catcher ION Catcher VIDI grants (L. Willmann) VIDI grants for spectroscopy on Radium (L. Willmann) (G. Onderwater) for Deuteron (edm) polarimeter (G. Onderwater) Conference invited talks (on TRI  P related subjects) Conference invited talks (on TRI  P related subjects) 2000: : : : : : : : : : : : 3

45 Bedankt voor uw aandacht !


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