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TY - CONF AU - Walker, R.P. AU - Apollonio, M. AU - Bailey, C.P. AU - Bartolini, R. AU - Cox, M.P. AU - Fielder, R.T. AU - Hammond, N.P. AU - Heron, M.T. AU - Kay, J. AU - Martin, I.P.S. AU - Mhaskar, S.P. AU - Pulampong, T. AU - Rehm, G. AU - Rial, E.C.M. AU - Singh, B. AU - Smaluk, V.V. AU - Thomson, A. ED - Petit-Jean-Genaz, Christine ED - Arduini, Gianluigi ED - Michel, Peter ED - Schaa, Volker RW TI - The Double-double Bend Achromat (DDBA) Lattice Modification for the Diamond Storage Ring J2 - Proc. of IPAC2014, Dresden, Germany, June 15-20, 2014 C1 - Dresden, Germany T2 - International Particle Accelerator Conference T3 - 5 LA - english AB - The concept of converting individual cells of the Diamond Double Bend Achromat (DBA) lattice into a modified 4-bend achromat with a new straight section for insertion devices (IDs) in the middle of the arc, grew out of earlier studies of low emittance MBA lattices*, and was motivated by the need for additional ID straight sections, since all of the 22 ID straight sections in the Diamond storage ring are either occupied or have been allocated to future beamlines. Such a modification effectively replaces each DBA cell with two new DBA cells, hence the term Double-DBA or DDBA has come to be used for the project. Since the tangent point for bending magnet beamlines lies close to the start of the second dipole in the original DBA, this allows unused exit ports and spaces on the experimental hall which are available for future bending magnet beamlines to be used for higher performance ID beamlines. In this report we present an overview of the status of the project, the various accelerator physics and engineering studies that have been carried out, and plans for the implementation of one or two DDBA cells in Diamond. PB - JACoW CP - Geneva, Switzerland SP - 331 EP - 333 KW - vacuum KW - dipole KW - lattice KW - quadrupole KW - sextupole DA - 2014/07 PY - 2014 SN - 978-3-95450-132-8 DO - 10.18429/JACoW-IPAC2014-MOPRO103 UR - http://jacow.org/ipac2014/papers/mopro103.pdf ER -