Iterative procedure for alignment in underground nuclear testing

A new method is presented for &tcrmining the mounting geometry for a frustum witiin the tunnel of an underground nuclear testing site. l%ii method is based on a sequence of linear iterations in conjunction with a Davidon iterator for finding the minimum of a function of several parameters. Successful convergence of the method has been demonstrated on a time-sharing CDC 6600 computer. We believe this method could be generalized to other similar alignment problems.