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Communication Dans Un Congrès Année : 2018

An Integrated large area MWPC-SSD for velocity- energy measurements of reaction products at VAMOS

Résumé

The characteristics and performance of a two dimensional position sensitive Multi Wire Proportional Counter (MWPC) integrated with a Silicon Strip Detector (SSD) are presented. The detector system has been developed for simultaneous measurement of velocity, energy and position (scattering angle) of the reaction products in the target chamber of VAMOS [1], in coincidence with reaction products at VAMOS focal plane in heavy ion induced binary reactions. The salient feature of this detector is the stacking of a transmission type, low pressure position sensitive MWPC with a SSD in the same detector housing. The active area is 10 x 10 cm2 for both detectors. An important design feature of the MWPC is the reduced wire pitch of 0.317 mm for the timing electrode, and 0.635 mm for the position electrodes which significantly improves the avalanche gains and timing resolutions. The other salient feature is the integration of both timing and energy preamplifier units with the detector body, eliminating cables between them. Position resolution for MWPC is 1.2 mm and the timing resolution has been estimated to be 200 ps. An energy resolution of 75 keV is observed for the 8.37 MeV alphas in case of SSD. The detector has been used to perform fission measurements with VAMOS.
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Dates et versions

hal-02136288 , version 1 (22-05-2019)

Identifiants

  • HAL Id : hal-02136288 , version 1
  • INSPIRE : 1731526

Citer

Akhil Jhingan, C. Schmitt, A. Lemasson, N. Saneesh, S. Biswas, et al.. An Integrated large area MWPC-SSD for velocity- energy measurements of reaction products at VAMOS. 63rd DAE-BRNS Symposium on Nuclear Physics, Dec 2018, Mumbai, India. pp.1158-1159. ⟨hal-02136288⟩
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