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THE AIR-KERMA RATE CONSTANT: APPLICATION TO AIR-KERMA MEASUREMENTS FOR HOMELAND SECURITY
Health Physics, 2008Air-kerma rate measurements from 57Co, 60Co, and 137Cs radioactive sources were performed. These measurements were motivated by the development of new sources at the National Institute of Standards and Technology (NIST) for radiological testing of equipment for homeland security applications.
L, Pibida +3 more
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2021
Abstract The Eastern Cemetery of Kerma is located south of the Third Cataract, close to the ancient city that was likely the center of the Kingdom of Kerma. It extends over 70 hectares and contains about 40,000 graves. Its development from north to south covers the whole duration of the Kerma civilization (2500–1500 bce) and gives a ...
Charles Bonnet, Matthieu Honegger
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Abstract The Eastern Cemetery of Kerma is located south of the Third Cataract, close to the ancient city that was likely the center of the Kingdom of Kerma. It extends over 70 hectares and contains about 40,000 graves. Its development from north to south covers the whole duration of the Kerma civilization (2500–1500 bce) and gives a ...
Charles Bonnet, Matthieu Honegger
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The Partition of Kerma to Account For Bremsstrahlung
Health Physics, 1979Abstract The concept of kerma (K) is useful in understanding the two-step process by which indirectly ionizing radiation deposits energy in matter. This quantity becomes even more important in fulfilling this role, and in relating the quantities of radiological physics to each other, if one subdivides K into its collisional part (Kc) and its radiative
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The Air-kerma Rate Constant of 192Ir
Health Physics, 1993The air-kerma rate constant gamma delta (and its precursors), as one of the basic radiation characteristics of 192Ir, was determined by many authors. Analysis of accessible data on this quantity led us to the conclusion that published data strongly disagree.
M M, Ninković, J J, Raiĉevìć
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KERMA ratios in pediatric CT dosimetry
Pediatric Radiology, 2012Patient organ doses may be estimated from CTDI values. More accurate estimates may be obtained by measuring KERMA (Kinetic Energy Released in Matter) in anthropomorphic phantoms and referencing these values to free-in-air X-ray intensity.To measure KERMA ratios (R(K)) in pediatric phantoms at CT.CT scans produce an air KERMA K in a phantom and an air ...
Walter, Huda +4 more
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Suomen kerma-sanan balttilaisuus
Virittäjä, 1978Fi. kerma 'Rahm, Sahne' - ein Wort aus dem Baltischen (saksa)Kielenaineksethärmä (kieli: suomi, sivulla: 372)härmä (kieli: suomi, sivulla: 373)ka(a)rna (kieli: suomi, sivulla: 372, 373)kaarmu (kieli: suomi, sivulla: 373)karmanne (kieli: suomi, sivulla: 373)karmu (kieli: suomi, sivulla: 373)karna, kaarna (kieli: suomi, sivulla: 372, 373)karp|pa, -pu, -u
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Significance and feasibility of air kerma length product and air kerma area product comparisons
Radiation MeasurementsAir kerma length product and air kerma area product are special quantities used in diagnostic radiology. They are measured using special measurement devices – CT-chambers and KAP-meters, in order to calculate quantities related to patient exposure.
Miloš Živanović +4 more
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