A reminder of the outstanding action list:-

1. A reminder of the outstanding action list:- • Implement central repository for drawings • – need detector information to add to official drawing • Instrumentation for absorbers must be specified and incorporated into design (temperature sensors, liquid level sensors, …) • Understand QC requirements for absorber windows and assign oversight responsibility; • Check minimum gap between AFC & Tracker solenoid Module; • -- Also check for bolting to floor in various steps; • Continue working to define worst-case magnet forces and collect magnet design notes into design report; • Define absorber heater implementation; • Revise absorber vent pipe size to make it adequate for He case • Get RAL seismic design criteria and verify that designs meet them

2. Evaluate stresses at module interconnect flanges and bolts • Define RFCC module tie-in to rail system • Work out gusset arrangement to transfer CC forces to RFCC module vacuum shell. • Evaluate the need for redundant LH2 relief paths • Evaluate merits of cryocooler heater vs. 3-stage cooler w/o heater • Revisit absorber operational scenarios (cool-down time ≈40 hours) • Evaluate absorber heat load with more realistic assessment of surrounding temperatures (is proposed MLI adequate?) • Finalize interface between radiation shield and detector module • - must forces be transmitted? • Consider participation in KEK and/or Fermilab absorber tests (some coordination maybe called for) • Evaluate magnet interaction during quench • - does one quench induce others? • Raise Change note on the radiation shield design

3. Status of Progress