Proposal for the award of a contract for the supply of lead-tungstate crystals needed to complete the barrel and endcap electromagnetic calorimeters of the CMS detectors

This document concerns the award of a contract for the supply of lead-tungstate crystals, in order to complete the Barrel and the Endcap Electromagnetic Calorimeters of the CMS detector. The Finance Committee is invited to agree to the negotiation of a contract with RUSSIAN ELECTRONICS (RU), for the supply of 18 000 crystals for the Barrel Electromagnetic Calorimeter and 4 750 crystals for the Endcap Electromagnetic Calorimeter for a total amount of 14 946 191 US dollars (18 697 685 Swiss francs), subject to revision, with options for additional crystals, for an additional amount of 1 026 607 US dollars (1 284 285 Swiss francs), subject to revision, bringing the total amount to 15 972 798 US dollars (19 981 970 Swiss francs), subject to revision. CERN's contribution to the funding of this contract will not exceed 3 836 930 US dollars (4 800 000 Swiss francs). The amounts in Swiss francs have been calculated using the present rate of exchange.