The Segmented Germanium Array (SeGA)

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SeGA is an array of eighteen 32-fold segmented high-purity Germanium detectors optimized for in-beam gamma-ray spectroscopy with beams of rare isotopes. By electronically partitioning each crystal into 32 segments we can meaure the energy and interaction points of gamma-rays emitted fast-moving rare isotopes. This allows us to reconstruct the energy of the gamm-ray in the frame of the moving particle.

SeGA is largest operational germanium detector array for gamma-ray spectroscopy with fast beams of rare isotopes until the completion of the planned GRETA Extrenal Link icon and Agata Extrenal Link icon detectors.

SeGA photograph
Sega partially set up for alignment. May 2002.
                                                    
References

Thirty-two-fold segmented germanium detectors to identify g rays from intermediate-energy exotic beams, W.F. Mueller, J.A. Church, T. Glasmacher, D. Gutknecht, G. Hackman, P.G. Hansen, Z. Hu, K.L. Miller, P. Quirin, Nucl. Instr. Meth. A 466 (2001) 492.

An automatic energy-calibration method for segmented germanium detectors, Z. Hu, T. Glasmacher, W.F. Mueller, I. Wiedenhöver, Nucl. Instr. Meth. A 482 (2002) 715.

Automated determination of segment positions in a high-purity thirty-two fold segmented germanium detector, K.L. Miller, T. Glasmacher, C. Campbell, L. Morris, W.F. Mueller, E. Strahler, Nucl. Instr. Meth. A 490 (2002) 140.

   

Thomas Glasmacher
Professor of Physics and
Associate Director (NSCL)
Exp. Nuclear Physics
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Updated 29 October 2002