...of the emitted gamma radiation measured by a Geiger counter or ionization chamber). Where exposure 4 A single exposure of 25 r can apparently escape detection...Handbook 41, Medical X-ray Protection up to Two Million Volta. to radioisotope dust or spray is a possibility, it may be desirable to test the activity of...

...in terms of the emitted gamma radiation measured by a Geiger counter or ionization chamber). AVhere exposure * A single exposure of 25 r can apparently...escape detection by standard blood counting techniques. * A more detailed discussion on blood counts will be found in National Bureau of Standards Handbook...

...Mev and is calibrated in roentgens. ' Many of the definitions are based on those that have appeared in National Bureau of Standards Handbook 41, "Medical X-ray Protection Up to Two Million Volts," and in "A Glossary of Terms in Nuclear Science and Technology," by the National Eesearcn Council. 1.8....

...Standards Handbook 60 Issued December 1, 1955 (Supersedes Handbook 41) Preface This Handbook supersedes National Bureau of Standards Handbook 41, "Medical X-ray Protection up to Two Million Volts" prepared by the National Committee on Radiation Protection in 1949. Because a great many copies of...

...— Protection Against Radiations from Radium, Cobalt — 60, and Cesium— 137 (Sept. 1, 1954). 10. National Bureau of Standards Handbook 41 — Medical X-ray Protection up to Two Million Volts (Mar. 30, 1949). 11. National Bureau of Standards Handbook 49 — Recommendations for Waste Disposal...