Real Photon Collaboration Engineering Meeting 3/19/02 Minutes Attendees: W. Olson, T. Weber, J. Weisend, R. Arnold, L. Keller, P. Bosted Items Discussed: 1. LBL has started work on the E160 magnetic analysis. The final paperwork for the contract is just about finished. M. Palrang has changed the model to eliminate interferences that cause problems with the LBL modeling tools and created a quadrant model at the request of LBL. This model was sent to LBL Monday. 2. The magnetic analysis for E160 that is to be done at Duke will start soon. The final paperwork is being finished up. The drawings provided to the Duke group are somewhat out of date and M. Palrang will provide a copy of the corrected drawings to them. 3. Discussion about DC2 being hot and whether it should be removed, as the pincushion is to be installed in front of it. 4. P. Bosted has looked at and approved the conceptual E160 target design. Detailed design by T. Weber and M. Palrang to start. Decisions Reached 1. The E160 target should have a clear readout of the target position. This will probably have to be measured optically. Ongoing Action Items 1. J. Weisend will work with D. Crabb and R. Principe to develop a detailed drawing showing the dilution refrigerator and the proposed superconducting magnet 2. Number of cables required from the counting house to ESA. P. Stiles and A. Angelov will start tabulating these numbers based on the data acquisition memo and additional information from the collaboration. 3. P. Bosted will continue the physics simulations of the proposed change to the RPC design. 4. . The interaction of the LASS magnet and all its iron with the E161/ E159 7-T target magnet needs to be carefully modeled using a 3-D field simulation. 5. Serious engineering of the shielding and earthquake supports associated with the LASS magnet must be started. 6. T. Weber will investigate other E160 target materials to replace the Pb and Au for example Tantalum or Platinum. J. Weisend