ARCS A wide-Anglular Range Chopper Spectrometer at the SNS

Fultz, Prof. Brent ; Abernathy, Dr. Doug

California Institute of Technology

关键词: Construction Project;    Neutron;    Sns;    36 Materials Science Spectrometer;    Inelastic;   

DOI  :  10.2172/835574
RP-ID  :  Final Report
RP-ID  :  FG02-01ER45950
RP-ID  :  835574

美国|英语

来源: UNT Digital Library

【 摘 要 】

The ARCS spectrometer project has been funded for 39 months. Procurements are now amain activity, although engineering effort remains, and installation has begun. Most of the subsystems are under control, and represent no risk to the project. These are: cryo-goniometer, detectors and electronics, Fermi chopper system, computing cluster, basic reduction software, T0 chopper and main neutron guide. The sample hutch and radiationshielding are still items of some risk. At the time of this writing, we are awaiting vendor proposals for the scattering chamber with integrated sample isolation system. This is thelargest uncertainty in the ARCS project today. The ARCS Chief Engineer, Kevin Shaw, joined the project in 2004. Project controlsservices are now performed by the SNS. A construction progress review was held in the August, 2004, before which the project was rebaselined, and after which the ProjectExecution Plan was updated. The ARCS project will be rebaselined in March 2005 after a vendor is selected for the scattering chamber with integrated isolation system. Projectcompletion by Sept. 2006 is possible but challenging.