Development of CGEM Technology for Ultra-light Tracking Detectors: the KLOE-2 Inner Tracker

A Balla ,M Capodiferro,S Cerioni,A Pelosi,G Felici,A Di Domenico,V Valentino,F Loddo,N Lacalamita,G Bencivenni,J Dong,G Fanizzi,G De Robertis,A Palladino,A Ranieri,E De Lucia,P Branchini,D Domenici,E Czerwiński ,M Mongelli ,P Ciambrone ,Raffaele Liuzzi ,M Gatta ,L Quintieri ,A Budano ,G Morello ,E Tskhadadze

doi:10.5506/aphyspolbsupp.6.1053

Abstract

KLOE-2 at the Φ-factory DAΦNE of INFN Laboratori Nazionali di Frascati (LNF), is the first experiment using the GEM technology with a cylindrical geometry (CGEM), developed at the LNF by the Inner Tracker group and within the RD51 Collaboration. Four layers with 26÷41 cm diameters and L = 70 cm, each realized as a Triple-GEM detector, compose this new detector. To produce GEM foils of unprecedented size, the novel single-mask manufacturing procedure has been developed with the TE-MPE-EM CERN group, together with the realization of a novel XV readout pattern. The adopted solutions allowed the total material budget to be kept below 2% of the radiation length X0. The final assembly of the Inner Tracker has been completed on March 14, 2014. The production procedure will be reported together with the validation test results.

Highlights

Acta Physica Polonica B Proceedings SupplementDEVELOPMENT OF cylindrical geometry (CGEM) TECHNOLOGY FOR ULTRA-LIGHT TRACKING DETECTORS: THE KLOE-2 INNER TRACKER∗
The KLOE experiment has collected 2.5 fb−1 of integrated luminosity between 2001 and 2006 at DAΦNE, the e+e− Φ-factory at the INFN Laboratori Nazionali di Frascati, fulfilling a vast program of precision kaon and hadron physics measurements [1]
KLOE-2 represents the continuation of KLOE, at an upgraded DAΦNE machine, with a new physics program mainly focused on KS, η and η rare decays as well as on kaon interferometry and search for physics beyond the Standard Model [2]

Summary

Acta Physica Polonica B Proceedings Supplement

DEVELOPMENT OF CGEM TECHNOLOGY FOR ULTRA-LIGHT TRACKING DETECTORS: THE KLOE-2 INNER TRACKER∗. KLOE-2 at the Φ-factory DAΦNE of INFN Laboratori Nazionali di Frascati (LNF), is the first experiment using the GEM technology with a cylindrical geometry (CGEM), developed at the LNF by the Inner Tracker group and within the RD51 Collaboration. Four layers with 26÷41 cm diameters and L = 70 cm, each realized as a Triple-GEM detector, compose this new detector. To produce GEM foils of unprecedented size, the novel single-mask manufacturing procedure has been developed with the TE-MPE-EM CERN group, together with the realization of a novel XV readout pattern. The final assembly of the Inner Tracker has been completed on March 14, 2014. The production procedure will be reported together with the validation test results

Introduction

Detector validation tests

Findings

Conclusions