Development of 3 T class Bi-2212 insert coils for high field NMR

Based on a successful 1 T Class PIT insert coil, we now pursue a 3 T Class insert coil. This paper describes the design and the latest conductor and c oil test results, as well as supporting experiments. The final product is e nvisioned to contain 3 concentric sections, requiring over one kilometer of conductor. This will be tested in a 20 T large bore resistive magnet at th e NHMFL. Experimental work focuses on the use of conductor with a silver-al low matrix in the outer sections, that are subject to the largest stresses when operated in a background field. Results from heat treatment optimizati on for would coils, mechanical test of conductors and coil design studies a re reported.