= PHENIX == A New Vision for the Hard x-ray Sky .Phenix instrumental concept (courtesy of M. Chauvin) image::images/PheniX_page.jpg[align="center",width="400"] In the hard X-ray domain, significant progresses in instrumental concepts and technics - mainly detectors and grazing incidence mirrors - allow to build a new generation of telescopes. Simbol-X study, Nustar and Astro-H marked the beginnings of a new instrumental era that will dramatically renew our view of the hard X-ray sky. The grazing incidence technique leads to a huge sensitivity improvement, opening a novel discovery space. .A caliste module (CdTe detector) (courtesy of O. Limousin) image::images/image.caliste.jpg[float="left",width="200"] .Double sided stripped Ge Detector (courtesy of J. P. Roques) image::images/IMGTEST.jpg[float="right",width="300"] ''''' Considering that all the ingredients are gathered to ensure a fruitful next hard X-ray mission (instrumental gaps and scientific questions to solve), we propose to organize a small workshop to be held on 2014 January, 13 and 14 in Paris. The main goals will be : - To collect and discuss instrumental concepts together with scientific questions to be addressed in Hard X-rays. - To review the programmatic context and prepare future instruments/missions to be proposed in the framework of M4 Esa next call or other opportunities. A number of slots are free for participants who wish to present some technical studies or scientific questions related to the above objectives. If you wish to give a talk, please, send a title and short (10 lines max) abstract to ejourdain@irap.omp.eu as soon as possible. No registration fees are required but we need to receive an email with your name and affiliation (to ejourdain@irap.omp.eu) before the January, 6 to help us to optimize the organisation of the workshop. The organizers: E. Jourdain, J.P. Roques, J. Rodriguez