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A Brief History of ISOLDE

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A Brief History of ISOLDE Powered By Docstoc
					    The ISOLDE
research programme
         Peter Butler
    (University of Liverpool)


    1.    The present

    2.    The future

         NuPECC 22-23 June 2007
                             Users & Science
                              B
                             11%
                                     E
       D                            4%
      29%



                                          F
                                         19%

OTH 6%
 RO 2%
  CZ 1%                                  S
   I 1%                                 5%
     IL 1%
      UK 4%                  PL     P
       NO 1%        DK FIN         3%
         BG 1%               5%
                    3% 3%
              IRL <1%




450 users (7% total CERN)
25 countries; 100 institutions
175 projects (4 years)

                                               NuPECC 22-23 June 2007
              ISOLTRAP mass measurements in 2006
                  100
                                                                           main electrodes
                                                                                                     320
                                                                           correction electrodes
                   50
    Nuclides measured                                                                                                  1 q
                                                                           z0
                                                                                                     300
                                                                                                                 c       B
          in 2006                                                                                                     2 m




                                                                                     mean TOF / µs
                       0                                                        r0

                                                                      100 mm                         280   126

                   -50
                                                                      50                             260
                                                               82                                                     82
                  -100                                                                                                                        61Fe+
                                                                      0                              240
                            0     40 80
                                Uz (V)                                                                      -6   -4        -2     0       2       4   6
              61-63Fe
                                                                                                                       (c - 1490700.3 Hz) / Hz
                                               50


                                                                      50             124,126Cd
56-63Mn
                                28
                       20
                                                                                                                      A Herlert
                                                    28
              8
                                          20
          2                                                         112,114,116,118,120,121Ag


                                 8
                                          38,39Ca
                   2
                                                                    First application of in-trap
                                     26,27Al
                                                                    decay mass spectrometry
                                                         NuPECC 22-23 June 2007
                                    Pb and Bi in-source
                                    laser spectroscopy

                                        |2| = 0.2         |2| = 0.15
               -0.6                                                                                                      literature data
                                                                            |2| = 0.1
                                                                                                           0.6               -
                                                                                                                         9/2 (ground state)
                                                                                                                                                                            2= 0.15

               -0.8
                        Pb                                                  |2| = 0
                                                                                                           0.4
                                                                                                                             +
                                                                                                                         1/2 (isomer)
                                                                                                                         droplet model prediction                           2= 0.1
                                                                                                           0.2                                                              2= 0
 2




                                                                                         2
 r A,208, fm




                                                                                         r A,209 , fm
                                                                                                           0.0
               -1.0                                                                                        -0.2
                                                                                                           -0.4
 2




                                                                                         
                                                              MF                                                   our data
                                                                                                           -0.6
               -1.2                                           MF*




                                                                                                                                                                N = 126
                                                              IBM                                          -0.8


               -1.4
                                                                                                           -1.0
                                                                                                           -1.2
                                                                                                                                              Bi
                      100   102   104    106         108       110        112                                     105         110     115           120   125             130
                                        N                                                                                                   N



H de Witte et al, PRL 98 (2007) 112502                                                                        M Seliverstov, B Marsh



                                                                         NuPECC 22-23 June 2007
Island of Inversion: 31Mg




  G Neyens et al, PRL 94, 022501 (2005)
             NuPECC 22-23 June 2007
        Island of Inversion: 33Mg
                                                                   NMR 33Mg, MgO


              |A| (I+1/2)
                                                   WBMB                   sd–pf

                    n (hw)       NMRI         g       Q(mb)          g        Q(mb)
                       HFS   33Mg




                        0           3/2-      -1.47          -83       -1.35
                                                             A/g ≈ const             -91

                        1           3/2+       0.75          135      0.78          140

                        2           3/2-      -0.45          147     -0.47          157


|A| (I+1/2)    ≈ A (I+1)/2<0   ≈ -AI/2>0
                                                              Experimental results
                                                        g = -0.4971(4)         I = 3/2
                                                                   preliminary

                                                                DT Yordanov
                                    NuPECC 22-23 June 2007
                 Solid State Physics
lattice location of impurities in semi-conductors by channeling




                                           -new developments
                                               fast read-out
                                               lower noise level
                                               shorter T1/2
                                               lower electron energies

                                           - new probes (65Ni, 61Co, 27Mg,
                                                                 8Li,)



                                           -lattice location in
                                                 semiconductors
                                           -related to ferromagnetism



                        NuPECC 22-23 June 2007
        REX post-accelerator




 Originally constructed by several CERN member states
   ~ 15 MCHF

 Utilises now  50% ISOLDE running time

 REX has accelerated 43 different RIB

 Present RIB yield from ISOLDE allows 10% of all 700
   radioisotopes be used
                      NuPECC 22-23 June 2007
                        World ISOL
FACILITY     DRIVER     POWER   USER BEAMS                    ENERGY      PHYSICS
                                ACCELERATED                               REACH
LOUVAINE-    30 MeV     6 kW    6He, 7Be, 10,11C, 13N,        10 MeV/u    Astrophysics,
LA-NEUVE     protons            15O, 18F, 18,19Ne, 35Ar       cyclotron   Nuclear structure
(BELGIUM)
1989
HRIBF        100 MeV    1 kW    7Be, 17,18F, 69As,            2 - 10      Nuclear Structure,
Oak Ridge    p, d,             67,83Ga, 75-79Cu,             MeV/u       Astrophysics
(USA)        (-ve ion           80-87Ge, 84Se, 92Sr,          tandem
1997         source)            118,120,122,124Ag, 129Sb,
                                130-134Sn, 132,134,136Te


ISAC         500 MeV    50 kW   8,9,11Li, 11C, 20,21Na,       4.5 MeV/u   Astrophysics,
TRIUMF       protons            18Ne, 26Al, 34Ar              linac       Condensed matter,
(CANADA)                                                                  Nuclear Structure
2000
SPIRAL       100        6 kW    6,8He, 15,19-21O, 18F,        2 - 25      Nuclear structure,
GANIL        MeV/u              17-19,23-26Ne,                MeV/u       Astrophysics
(FRANCE)     heavy              33-35, 44,46Ar, 74-77Kr       cyclotron
2001         ions
REX ISOLDE   1.4 GeV    3 kW    8,9Li, 10-12Be,17F,           0.3 - 3     Nuclear structure,
(CERN)       protons            24-29Na, 28-32Mg, 68Ni,       MeV/u       Condensed matter,
2001                            67-73Cu, 74,76,78,80Zn,       linac       Astrophysics
                                70Se, 88,92Kr, 108In,
                                106,108,110Sn,122,124,126Cd
                                138,140,142,144Xe, 148Pm,
                                153Sm, 156Eu




                                NuPECC 22-23 June 2007
                  Rex efficiencies
                             Efficiencies for beams 2006
    20.0
                             Tot. eff. = Trap × BTS × EBIS × Sep
                 27Al

    15.0


                                       116Cd
%




    10.0

           7Li
                                                                         238U
     5.0



     0.0
           0            50            100           150            200          250
                                               A


                                NuPECC 22-23 June 2007
                   Rex photo

REX-ISOLDE
   2006



                                             MINIBALL
                                             (Coulex,
                                             transfer)
Halo studies
e.g. 10Li
Jeppesen et al
PL B642(2006)449    NuPECC 22-23 June 2007
  68,70Cu         Coulex

  68Cu

  6- beam



  68Cu

  1+ beam




I Stefanescu et al, PRL 98 (2007) 122701
          NuPECC 22-23 June 2007
  Shape of 70Se




                 NuPECC 072501 (2007)
A Hurst et al., PRL 98, 22-23 June 2007
          Results: 106,108,110Sn
110Sn:   J. Cederkall et al, PRL 98 (2007) 172501



 unpublished

                                              90Zr core
                                              , excitations
                                              e=0.5e, e=1.5e


                         100Sn core
                          excitations
                         e=1.0e




                     NuPECC 22-23 June 2007
Expansion plans


                             planned
                              MINIBALL




    NuPECC 22-23 June 2007
            HIE-ISOLDE at CERN
Increase in REX energy from 3 to 10 MeV/u
 (first step in increase to 5.5 MeV/u)




Increase proton intensity 2  6 A (LINAC4,
PSB upgrade) - target and front-end upgrade
RFQ cooler, REX-TRAP, REX-EBIS
  REX-ECR upgrades
Super-HRS for isobaric separation
RILIS upgrade & LIST
                   NuPECC 22-23 June 2007
Coulomb barrier for RIB
     HIE-ISOLDE




        Current REX-ISOLDE




         NuPECC 22-23 June 2007
REX-TRAP project




       40K     40Ca




                                S Sturm

   Mass resolution 5 x 104

       NuPECC 22-23 June 2007
RF Cooler & HRS project

                                    E Mané
                                    B Cheal
                                    H Franberg
                                    J Billowes


                                 Oct 2007 –
                                 laser spectroscopy

                                 HRS upgrade

                                 Cooler+ HRS

        NuPECC 22-23 June 2007
           H-                                                         n-generator   UCx
                                                                                    target

                                                                                    One of several
                                                                                    target stations


                                                                  1 GeV/q              1+ ion
                                                                  H-, H+,              source
 H+, D+,                                                           3He++
                                                     >200 MeV/q
 3He++
                                                      D+, A/q=2
   Ion                                  SPL
 sources                                                                            Low-resolution
                                                                                    mass-selector

EURISOL precursor
  Secondary
                                             HIE-ISOLDE
fragmentation
    target
                                                                  Charge
                                                                  selector
                                                                                    High-
                                                                        Charge      resolution
                                                                        breeder     mass-selector


     20-150 MeV/u 9- 60 MeV/u   2-10 MeV/u
       (for 132Sn)
To high-energy                                       To low-energy areas
experimental areas
                 To medium-energy experimental areas
                                       NuPECC 22-23 June 2007
Radioactive ISOL beam yields
              2020                GANIL-ISOLDE
                                  Jan 07 agreement –
              2016
                                  Complimentarity;
              2012                Collaboration
            present




         NuPECC 22-23 June 2007
FINIS
                         9Li(d,p)10Li

                         Jeppesen et al
                         PL B642(2006)449




NuPECC 22-23 June 2007
        European Roadmap for RIB facilities
EU EURISOL Design Study

107 €


Jan 07 agreement –
Complimentarity;          SPL (CERN)
Collaboration             decision


108 €


 ESFRI list


EU FAIR Design Study

109 €


                                NuPECC 22-23 June 2007
     EU projects (2005-2009)
EURONS I3:     (2.1 MCHF)
    TNA
    JRA’s: INTAG, CHARGE BREEDER,
           LASER, SAFERIB, (TRAPSPEC)

EURISOL DS: (2.8 MCHF)
    liquid MMW Hg targets
    direct 100kW target
    beam conceptual study


                  NuPECC 22-23 June 2007

				
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posted:3/30/2011
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