A large acceptance scintillator detector with wavelength shifting fibre readout for search of eta-nucleus bound states

Betigeri, M. G.; Machner, H.; Guha, S.; Budzanowski, A.; Nedev, S.; Kirillov, Di.; Kliczewski, S.; Jain, B. K.; Piskunov, N.; Jha, V.; Kilian, K.; Urban, J.; Roy, B. J.; Ritman, J.; Sitnik, I.; Maier, R.; Kolev, D.; Hawranek, P.; Kirillov, Da.; Kravcikova, M.; Magiera, A.; Vankova, G.; GEM, Collab.; Martinska, G.; Protic, D.; Jahn, R.; Tsenov, R.; Lesiak, M.; Lieb, J.; Kutsarova, T.; Ulicny, M.; Shukla, P.; Siudak, R.; Prasuhn, D.; Chatterjee, A.; Biswas, P. K.; von Rossen, P.

doi:10.1016/j.nima.2007.04.159

Journal Article

A large acceptance scintillator detector with wavelength shifting fibre readout for search of eta-nucleus bound states

Betigeri, M. G. ; Biswas, P. K. ; Budzanowski, A. ; Chatterjee, A. ; Jahn, R. ; Guha, S. ; Hawranek, P. ; Jain, B. K. ; Jha, V. ; Kilian, K.FZJ* ; Kliczewski, S. ; Kirillov, D.FZJ* ; Kirillov, D. ; Kolev, D. ; Kravcikova, M. ; Kutsarova, T. ; Lesiak, M.FZJ* ; Lieb, J. ; Machner, H.FZJ* ; Magiera, A. ; Maier, R.FZJ* ; Martinska, G. ; Nedev, S. ; Piskunov, N. ; Prasuhn, D.FZJ* ; Protic, D.FZJ* ; Ritman, J.FZJ* ; von Rossen, P.FZJ* ; Roy, B. J. ; Shukla, P. ; Sitnik, I. ; Siudak, R.FZJ* ; Tsenov, R. ; Ulicny, M. ; Urban, J. ; Vankova, G.FZJ* ; GEM, C.

2007
North-Holland Publ. Co. Amsterdam

Nuclear instruments & methods in physics research / A 578, 198 - 206 (2007) [10.1016/j.nima.2007.04.159]

This record in other databases:

Please use a persistent id in citations: http://hdl.handle.net/2128/10516 doi:10.1016/j.nima.2007.04.159

Abstract: A large acceptance scintillator detector with wavelength shifting optical fibre readout has been designed and built to detect the decay particles of eta-nucleus bound system (the so-called eta-mesic nuclei), namely, protons and pions. The detector, named as ENSTAR detector, consists of 122 pieces of plastic scintillator of various shapes and sizes, which are arranged in a cylindrical geometry to provide particle identification, energy loss and coarse position information for these particles. A solid angle coverage of similar to 95% of total 4 pi is obtained in the present design of the detector. Monte Carlo phase space calculations performed to simulate the formation and decay of eta-mesic nuclei suggest that its decay particles, the protons and pions are emitted with an opening angle of 150 +/- 20 degrees, and with energies in the range of 25-300 and 225-450 MeV, respectively. The detailed GEANT simulations show that similar to 80% of the decay particles (protons and pions) can be detected within ENSTAR. Several test measurements using alpha source, cosmic-ray muons, etc. have been carried out to study the response of ENSTAR scintillator pieces. The in-beam tests of fully assembled detector with proton beam of momentum 870 MeV/c from the Cooler synchrotron COSY have been performed. The test results show that the scintillator fibre design chosen for the detector.

Keyword(s): J ; scintillator detector (auto) ; WLS optical fibre readout (auto) ; eta-nucleus bound states (auto)

Classification:

Note: Record converted from VDB: 12.11.2012

Research Program(s):