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gamma dose
The relationship between damping neutron and gamma dose was found to be of the formQmax-1 α ΛDη, where η is equal to -1.2 for neutron and -1.45 for gamma irradiation.
      
Chromosome elimination in asymmetric somatic hybrids: effect of gamma dose and time in culture
      
The elimination of donor DNA was found to increase with increasing gamma dose for all doses tested (5-50 krad).
      
However, when the donor protoplasts were inactivated by irradiation, the fraction of hybrid calli that were able to complement the Su mutation decreased with increasing gamma dose; for a 50-krad dose only 40% of the hybrid calli were green.
      
We conclude that radiation-induced elimination of donor chromosomes increases with gamma dose and time in culture in N.
      
The overall mean outdoor terrestrial gamma dose rate is 64.8?nGy?h-1 and the corresponding outdoor annual effective dose is 0.079?mSv.
      
The aim of this study was to determine the non-extremity gamma dose received by a technician while performing an ordinary nuclear medicine procedure or a static (i.e.
      
Previously derived conversion factors were applied to obtain an estimate of the gamma dose in air at the former shore of the Techa river.
      
The resulting distribution for the gamma dose accumulated in the period 1949-1956 at the Techa river shore has a median value of 32?Gy with a 95% confidence interval of 21-45?Gy.
      
Additionally, in situ gamma dose rate measurements were performed on the farms using a pre-calibrated survey meter.
      
Average external gamma dose rates were found to vary across the farms from 0.50?±?0.01 to 1.47?±?0.04?μSv?h-1.
      
For this purpose, gamma dose-rate measurements were performed on site, sampled TENORM/NORM materials were measured by high-resolution gamma spectrometry for determination of 210Pb, 238U, 232Th, 228Th and 226Ra.
      
For this purpose, gamma dose-rate measurements were performed on site, sampled TENORM/NORM materials were measured by high-resolution gamma spectrometry for determination of 210Pb, 238U, 232Th, 228Th and 226Ra.
      
With increasing gamma dose, the ferroelectric transition shifts to lower temperatures, irrespective of frequency.
      
The results demonstrate that increasing the gamma dose to 9 × 105 Gy reduces εΤ33?/ε0 and tanδ.
      
The conductivity of corundum as a function of gamma dose is found to pass through a minimum.
      
The conductivity of quartz passes through a maximum at a gamma dose of about 106 rad.
      
The conductivity of vitreous silica is a nonlinear function of gamma dose, with a minimum near 105 Gy.
      
The intensity of this peak is a linear function of gamma dose in the range 2-12 kGy, suggesting that heat-treated BeO is a candidate luminescent material for gamma dosimetry.
      
The radiation effect on the electrical conductivity of the crystals is shown to be a nonlinear function of temperature and gamma dose, characteristic of percolation systems at low temperatures.
      
 

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