In this Technical Design Report (TDR) we describe the SuperB detector that was to be installed on the SuperB e+e- high luminosity collider. The SuperB asymmetric collider, which was to be constructed on the Tor Vergata campus near the INFN Frascati National Laboratory, was designed to operate both at the Upsilon(4S) center-of-mass energy with a luminosity of 10^{36} cm^{-2}s^{-1} and at the tau/charm production threshold with a luminosity of 10^{35} cm^{-2}s^{-1}. This high luminosity, producing a data sample about a factor 100 larger than present B Factories, would allow investigation of new physics effects in rare decays, CP Violation and Lepton Flavour Violation. This document details the detector design presented in the Conceptual Design Report (CDR) in 2007. The R&D and engineering studies performed to arrive at the full detector design are described, and an updated cost estimate is presented. A combination of a more realistic cost estimates and the unavailability of funds due of the global economic climate led to a formal cancelation of the project on Nov 27, 2012.

SuperB Technical Design Report

The first phase of the SPARX project, now funded by MIUR (Research Department of Italian Government), is an R&D activity focused on developing techniques and critical components for future X-ray FEL facilities. This project is the natural extension of the activities under development within the ongoing SPARC collaboration. The aim is the generation of electron beams characterized by an ultra-high peak brightness with a linear accelerator based on the upgrade of the existing Frascati 800 MeV LINAC and to drive a single pass FEL experiment in the range of 3-5 nm, both in SASE and SEEDED FEL configurations, exploiting the use of superconducting and exotic undulator sections. In this paper we discuss the present status of the collaboration.

/pdf/status-of-the-sparx-fel-project-352lgoueqc.pdf

Status of the sparx FEL project

A new optimization of the SPARC photo-injector, aiming to reduce the FEL saturation length, is presented together with Start-to-End simulations. A systematic scan of the main parameters around the operating point showed that the probability to get a projected emittance exceeding 1 µm is only 10 % and the slice emittance remains below 1 µm in all cases.

/pdf/sparc-photoinjector-working-point-optimization-tolerances-5341vsgdvg.pdf

Sparc photoinjector working point optimization, tolerances and sensitivity to errors

Status of the SPARX FEL Project

Quasi-Isochronous rings have been considered for electron-positron colliders to obtain a large luminosity with a small average beam current. This approach offers the advantage of minimizing vacuum and RF system problems, and multibunch instability effects. In this paper, we review the basic physics of a QIR, the condition for stable single particle motion, and the dynamic aperture. The collider we discuss is a ~-factory with a single ring, and beam energy of 510 Mev. This ring uses a very strong focusing of the electron and positron beams at the interaction point, i.e. a beta function in the millimeter range; and a momentum compaction variable over a large range, of -0.008 to +0.005, to control the bunch length.It has a luminosity of 1033cm-2s-1 , average current smaller than 1 A, and a perimeter of 32.7 meter. Its transverse chromaticities and second order momentum compaction are set to zero by utilizing three families of the sextupoles. The QIR dynamic aperture is calculated using a new computer code, KRAKPOT, written explicitly for small rings. *This work was supported by the Director, Office of Energy Research, Office of High Energy and Nuclear Physics, High Energy Physics Division, of the U.S. Department of Energy uhder Contract Nos. DE-FG03-92ER40693 and DE-AC03-76SF00098.

/pdf/study-of-magnetic-lattice-for-a-quasi-isochronous-ring-2pdhxv8kui.pdf

Study of Magnetic Lattice for a Quasi-Isochronous Ring

DAPHNE, the Frascati Phi-factory

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DAPHNE, the Frascati Phi-factory