HAL: in2p3-00470415, version 1

DOI: 10.1016/j.nima.2010.03.146

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Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 621 (2010) 558-565

New gas-filled mode of the large-acceptance spectrometer VAMOS

C. Schmitt1, M. Rejmund1, A. Navin1, B. Lecornu1, B. Jacquot1, G. De France1, A. Lemasson1, A. Shrivastava1, P. Greenlees2, J. Uusitalo2, K. Subotic3, L. Gaudefroy4, Ch. Theisen3, 5, B. Sulignano5, O. Dorvaux6, L. Stuttgé6

For the VAMOS collaboration(s)

(2010)

A new gas-filled operation mode of the large-acceptance spectrometer VAMOS at GANIL is reported. A beam rejection factor greater than 1010 is obtained for the 40Ca+150Sm system at 196 MeV. The unprecedented transmission efficiency for the evaporation residues produced in this reaction is estimated to be around 80% for ®xn channels and above 95% for xnyp channels. A detailed study of the performance of the gasfilled VAMOS and future developments are discussed. This new operation mode opens avenues to explore the potential of fusion reactions in various kinematics.

1:	GANIL - Grand Accélérateur National d'Ions Lourds
2:	Department of Physics
3:	Vinca Institute of Nuclear Sciences
4:	CEA/DAM - Direction des applications militaires
5:	IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers (ex DAPNIA)
6:	IPHC - Institut Pluridisciplinaire Hubert Curien

Subject(s)

:

Physics/Physics/Instrumentation and Detectors Physics/Nuclear Experiment

Keyword(s) : Gas-filled spectrometer – Fusion reactions – Beam rejection – Transmission

in2p3-00470415, version 1

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From: Michel Lion <>

Submitted for: Christelle Schmitt <>

Submitted on: Tuesday, 6 April 2010 15:04:34

Updated on: Monday, 26 July 2010 09:15:05