HIF 2010
18th International Symposium
on Heavy Ion Inertial Fusion -
Information

Title:	Dr.
Family Name:	Didelez
First Name:	Jean-Pierre
E-Mail:	didelezipno.in2p3.fr
Affiliation for Badge:	IPN, Orsay
Institute:
Address (Street):	Bat 100
Postal Code, City:	91406 ORSAY CEDEX
Country:	France
Phone:	+33169155186
Fax:	+33169156470
Payment:	Bank transfer to GSI
Author(s):	J.-P. DIDELEZ C. DEUTSCH
Institute(s):	Institut de Physique Nucléaire, CNRS/IN2P3 & Université Paris XI 91406 Orsay, France Laboratoire de Physique des Gaz et des Plasmas, CNRS & Université Paris XI 91405 Orsay, France
Title:	Persistence of the Polarization in a Fusion Process
Abstract:	We propose an experiment to test the persistence of the polarization in a fusion process, using a powerful ultrashort laser hitting a polarized HD target. The polarized protons and deuterons heated in the plasma induced by the laser have a significant probability to fuse producing a 3He and a Gamma ray or a neutron in the final state. The angular distribution of the radiated Gamma rays and the change in the corresponding total cross section are related to the polarization persistency, but the resulting signal as predicted by recent models, turns out to be weak. By comparison,the neutron are produced hadronically with a larger cross section and are much easier to detect experimentally. A significant reduction of the cross section by parallel polarization of the deuterons and typical angular distributions are reliably predicted by the theory. Therefore, it is expected that the corresponding signature on the neutron counting rates could be seen experimentally. Possible local experimental developments will be discussed.
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