Download Free Supplementary Estimates Of Radiation Geometry And Energy Response For Usnrdl Gamma Intensity Time Recorder Book in PDF and EPUB Free Download. You can read online Supplementary Estimates Of Radiation Geometry And Energy Response For Usnrdl Gamma Intensity Time Recorder and write the review.

Estimates of radiation response are presented for the Model 103 Gamma-Intensity-Time Recorder (GITR) as used at Operation Sunbeam. The GITR detector unit, consisting of two concentric ionization chambers, was mounted inside the GITR recorder case and located 3 ft above ground level. GITR responses and their time-dependence were estimated for several idealized radiation source geometries and several calculated gamma energy spectra. Estimated response values are presented as fractions of the GITR's calibration-response to Cs137 radiation beamed at the top of the unmounted detector along its longitudinal axis. The principal conclusions drawn were that: The GITR responses to distributed sources with specified gamma energy spectra did not show a significant dependence upon the source geometries investigated. There were about 17% differences between the responses of the two concentric detectors. The responses changed about 15% during the first 100 hours after fission. The use of overall average GITR responses for distributed sources seems warranted; there is 95% confidence that 95% of the population of GITR responses will be within 12% of the overall average response of 1.16 for the high-range detector, and within 14% of the overall average response of 0.99 for the low-range detector, during the first 110 hours after fission. (Author).
With all the enormous resources that are invested in medicine, it is sometimes a mystery why there is so much sickness still in evidence. Our life span, though higher than at any time in history, has now leveled off and has not significantly increased in the last two generations. There is a one-third increase in long-term illness in the last 20 years and a 44% increase in cancer incidence, which are not related to demographic issues. In some modern countries, the level of morbidity (defined as days off work because of sickness) has increased by two thirds in this time. Despite $1 trillion spent on cancer research in 20 years, the "War On Cancer" has recently been pronounced a complete failure by the u. s. President's Cancer Panel. Evidently we still have a long way to go. The goal of "Health for All by the Year 2000" as the World Health Organization has put it, is another forgotten dream. As ever, the answer will be found in breaking out of the old philosophical patterns and discovering the new, as yet unacceptable concepts. The problems of medicine today require a Kuhnian breakthrough into new paradigms, and new ways of thinking. And these new ways will not be mere variations of the old, but radical departures. This book, and the conference upon which it was based, is part of a search for these new pathways.