PREFACE
Project 2.9 made the initial gamma measurements for the fractional-kiloton detonations at the
Eniwetok Proving Ground. Subsequent to the cessation of operations at Eniwetok, Project 2.12b
was initiated on short notice to make similar measurements on similar devices at the Nevada
‘Test Site. Since the objectives, operations, and findings of the two projects are so interwoven,
it was deemed advisable to prepare a combined report, rather than two Similar reports with
multiple cross-referencing throughout.
The authors wish to express their appreciation to Edgerton, Germeshausen and Grier, Inc.,
for the use of their gamma source for calibration of film badges and to G. Carp and R. Larrick,
U.S. Army Signal Research and Development Laboratory, for their advice in the operation of
the Emmett device and the processing and interpretation of the film badges.