NCLAS one SCP, Ellery Stora, by transfer from the Monitoring Section, one Research Assistant, George Angleton. b. A coordinated program to evaluate the ReLa chenists' d more accurately has been carried out. This has necessitated the measurement of the surface dose from radio barium-lanthanum betas; the calibration of the monitoring film in terms of this dosage; th evaluation of the gammaeray energy and dosage by the method of St and Benis; and the evaluation of a reasonably accurate average com This yielded the result that whole body gamma dosage is dosage. within permissible levels and that the combined surface dose is slightly above. c, The surface dose dus to the soft I-rays from bare plut was measured and the monitoring film was calibrated in terms of th dose. d. <A very useful neutron monitoring instrument was made by converting the standard Pee Wee to have a boron-lined chamber instdad of the regular air alpha chamber. e. This Section participated in a cooperative way with the Air Force Cambridge Research Laboratory in a limited cloudetracki operation. As a result it became clear that it is not only poss! to track a radioactive cloud by means of sir conductivity seasure- ments, but it is possible to map out a fall-out pattern beyond wha @ ground survey with GeM instruments is capable of doing. f. We also compared the air conductivity method with that -19QR 1O¥N4SD UNCLASSIFIED b0130915 02! LANL