Measurement of cobalt-60 and cesium-137 gamma rays with a free-air chamber
نویسندگان
چکیده
منابع مشابه
Measurement of Cesium-137 and Cobalt-60 Gamma Radiation With a Pressure Ionization Chamber
The characteristics of the pressure ionization chamber at t he National Bureau of Standards have been studied for the gamma radiation from a cesium-137 sou rce (0.6614 Mev) and from a cobalt-60 source (1.1715 and 1.3316 Mev). The dosage rates produced in air by these sources were measured with this chamber with an accuracy of about 2 percent. Dosage rates obtained with an extrapolation chamber ...
متن کاملFabrication of Free Air Well Type Ionization Chamber and Calculational Assessment and Measurement of Its Operational Characteristics
Introduction: Well type ionization chamber is a measuring device which is used to determine the activity of brachytherapy sources. The chamber has a cylindrical volume in which a cylindrical tube is mounted in the middle of the chamber. For the measurements, the brachytherapy sources are transferred to the middle of the tube. Materials and Methods: For designing the well type chamber, the measu...
متن کاملDetection of ionizing radiation emitted from the cesium-137 and cobalt-60 sources using electrochemical superoxide anion sensor in the aqueous medium
Widespread use of ionizing radiation in medicine, industry, agriculture, education and research, the increasing production of nuclear waste and nuclear incidents, has exposed humans and organisms to this radiation. Despite the benefits of ionizing radiation, these beams can cause serious damage to living systems. Hence, the need for radiation protection actions requires accurate, fast, inexpens...
متن کاملStandard Free-Air Chamber for the Measurement of Low Energy X-rays (20 to 100 Kilovolts-Constant-PotentiaIY
A description of the new N a t ional Bureau of Standards " low" en ergy free-air chamber is given. The standard chamber is designed to mea sure t l1e expos ure dose II: roe ntgens for X-ray beams generated at pote ntials fr ol11. 20 to 100 kIi ovolts-co nstant-poten tJaI (kvcp) '':Ith filtration s ranging from 2 millimet e rs of bery lli um to 2 mIi lune ters of b ery l hum plus 41m 11Ime ters ...
متن کاملAbsolute Air-kerma Measurement in a Synchrotron Radiation Beam by Ionization Free-air Chamber
A dosimetric procedure to assure the traceability to the air-kerma standard of the measurements performed in synchrotron radiation beams, was implemented at the “Istituto Nazionale di Metrologia delle Radiazioni Ionizzanti” of ENEA (INMRI-ENEA). To this purpose, absolute air-kerma measurements by the ENEA standard free-air chamber for low energy x-rays have been performed at the SYRMEP (SYnchro...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Research of the National Bureau of Standards, Section C: Engineering and Instrumentation
سال: 1960
ISSN: 0022-4316
DOI: 10.6028/jres.064c.012