——_ Laat Rims) > Project 2.51 - Neutron Plux Measurements and Shielding Studies C. We luke OBJECTIVES To measure the neutron flux and energy spectrum as e@ fynction of distance from the point of detonation ot TT: .. Also to evaluate the angular distribution of the neutron flux aboutRY evice. , : To compare the foil detector method of deterwining dose in rep with chemical and semi-conductor methods. LESTEDENTATI In order to evaluate the angular ‘istritution of the neutron flux rorEBT) abot, thre instrument lines vere required. vere laid as follows: The lines Ome line extending along the projection on the ground of the long axts of the device, one line at 45° to this projection, and one line st 64° to this srojection. It was desired that the third line be placed at 90° to the long axis of the device, however, a permanent structure along the 90° line required the use of the 64° angle. Rach instrument line consisted of a 1 inch steel cable laid along the ground. placed: At each 100 yard interval the following detectors vere Au, 1 az. or 2 on. Blo shielded Puc3?, 238 S, cheeical dosimeters, cermanium dosimeter, and navy DT60 plese dosimeters. two samples of Np 237 were available for this shot, Only One sample was placed at the 200 yd. station on the 0° line and one at the 100 yd. atation on