AGATA Ge-Detector
Working Group
 
contact:
John Simpson
Cesar D. Pardo
AGATA at GSI:
Design paper: 23.11.2010
Design paper: Beam Geometry, 430mm Vessel
Design paper: 0016v1 2010_09_30
Design paper: J.Strachan (30.9.2010)
Design paper: J.Strachan (1.7.2010)
Design paper: GSI Target Chamber Space Constraints
Design paper: J.Strachan (24.5.2010)
P.Jones: Infrastructure Issues
AGATA at GSI: MC-Simulations
AGATA angles 2012
  • AGATA - News from Cologne
  • AGATA MoU
  • AGATA Project Definition
  • AGATA Management Board and Tasks
  • AGATA at LNL:  Enrico Farnea e-mail


  • Miniball at GSI:
    official Miniball homepage (York)
    Miniball at REX-ISOLDE (Cern)

    Design paper: Miniball Detector in AGATA frame at GSI
    Complementing AGATA with MINIBALL (14.3.2012)

    EUROBALL at GSI:
    RISING stopped beam set-up 29.09.2005
    RISING cluster detector angles
    RISING with Miniball Design Status (28.7.2004)
    RISING with Miniball Design Status (19.1.2004)
    HECTOR in RISING
    Design paper for the Ge-array (October 2002)
    LN2 automatic filling system:
      Introduction (German)
    LN2 automatic filling system
    Positions of Cluster Detectors in the Array
    Filling Status
    High Voltage Status for Clusters
    Photos and Technical Drawings:
      Photo Sampler
    Technical Drawings
    Atomic Background Radiation:
      Bremsstrahlung (pdf version)
    132Sn on 208Pb versus energy
    100 MeV/u 132Sn on C,Sn,Pb target
    100 MeV/u 238U on 208Pb
    g-absorber: (suppression of atomic background radiation)
      Pb(1mm),Sn( ) absorbers in front of Ge-detectors
    Pb(2mm),Sn( ) absorbers in front of Ge-detectors
    Doppler Effect:
     
    Through Einstein's Eyes
       relativistic aberration       Doppler effect       headlight effect   
    Doppler shift (pdf version)
    Beam velocity b and g-parameter

    Doppler broadening (DJg)
    Doppler broadening (Db)
             for very short lived states:
             g-ray energy resolution (FWHM): 1%
             for target thickness of 0.1 g/cm2 for 132Sn on 208Pb

    proposed experimental EUROBALL set-up
             g-ray energy resolution (FWHM): 1%
             total g-ray efficiency: 1.67%

             g-ray energy resolution (FWHM): 1.24%
             total g-ray efficiency: 2.88%

             2nd and 3rd Cluster ring at ~70 cm

    aberration Particle-g-Ray Angular Correlation:
      particle-g-ray angular correlation (rest system)
    transformation of g-emission angle (rest -> lab-system)
    particle-g-ray angular correlation (lab system)
    particle-g-ray angular correlation (exp. set-up)
    particle-g-ray angular correlation (20Ne + 108Ag, 5.6 MeV/u)
    particle-g-ray angular correlation (78Kr + 158Gd, 33.MeV/u)
    books Literature
      Achievements with EUROBALL 1997-2003 W. Korten, S. Lunardi
    MINIBALL ein neuartiges Gamma-Spektrometer D.W. Weisshaar
    Das sechsfach segemtierte MINIBALL Modul C. Gund
    AGATA technical proposal J. Gerl, W. Korten
    AGATA-Advanced GAmma Tracking Array NIM A668(2012),26
    Conceptual design and infrastructure for the installation of the first AGATA sub-array at LNL NIM A654(2011),88
    Advanced Gamma Tracking Array AGATA Bazzacco, Gottardo; Nuclear Structure 2012
    Alpha-gamma discrimination by pulse shape in LaBr3 F.C.L. Crespi; NIM A602(2009),520
    Application of the recursive subtraction pulse shape analysis algorithm to in-beam HPGe signals F.C.L. Crespi; NIM A604(2009),604
    HPGe detectors timing using pulse shape analysis techniques F.C.L. Crespi; NIM A620(2010),299

    last update: 10.1.2011 Hans-Juergen Wollersheim HJW