Author/Authors :
Suzuki، نويسنده , , D. and Ford، نويسنده , , Sam M. and Bazin، نويسنده , , D. and Mittig، نويسنده , , W. and Lynch، نويسنده , , W.G. and Ahn، نويسنده , , T. and Aune، نويسنده , , S. and Galyaev، نويسنده , , E. and Fritsch، نويسنده , , A. and Gilbert، نويسنده , , J. and Montes، نويسنده , , F. and Shore، نويسنده , , A. and Yurkon، نويسنده , , J. J. Kolata، نويسنده , , J.J. and Browne، نويسنده , , J. and Howard، نويسنده , , A. and Roberts، نويسنده , , A.L. and ، نويسنده ,
Abstract :
The Prototype AT-TPC, a detector based on time projection chamber (TPC) technology was built at the National Superconducting Cyclotron Laboratory, Michigan State University. The chamber gas, called the active target, of the Prototype AT-TPC is utilized simultaneously as a reaction target and a tracking medium of charged particles for measuring low-energy nuclear reactions. In pursuit of luminosity, efficiency and resolution for reaction studies at a new generation of radioactive isotope facilities, the Prototype AT-TPC provides one of the largest active volumes in the world measuring 25 cm in diameter and 50 cm long along the beam axis, millimeter-precision tracking capability, and a high electric field of 1 kV/cm/atm for fast electron drift, which limits the detector dead time. Commissioning of the detector using standard alpha sources and radioactive 6He beams has demonstrated the detectorʹs long-term stability as well as its performance, which allowed good reconstruction of reaction kinematics.
Keywords :
Radioactive isotope beam , Micromegas bulk , High voltage insulation , Helium gas , Active target , Time projection chamber
