Ian Crotty HPL Spec. Up-Scope 05 April 2011

CMS End-cap RPC4 CMS End-cap RPC4 High Pressure Laminate (HPL) High Pressure Laminate (HPL)

Specification Specification

CMS End-cap RPC4 CMS End-cap RPC4 High Pressure Laminate (HPL) High Pressure Laminate (HPL)

Specification Specification

Specification as used though out thepresent RPC system• Resistivity range 1-6 x10^10 [Ω.cm] @ 20°C. • StDev/Av Rho ≤ 0.5• Average roughness (Ra) ≤ 0.1 [µm].• Stability over 2 weeks remaning within the above window• Thickness 2mm ± 100 [µm]• Melamine surface paper with Phenolic bulk• Sheet dimensions 1.6 x 3.2 [m]

Parameters not taken into account:Dielectric constant, Flatness & Waviness, Bonding strength,Oil and graphite adhesion quality.