State primary standard for the unit of exposed dose of X-ray and gamma radiation

1972 ◽  
Vol 15 (2) ◽  
pp. 185-190
Author(s):  
M. F. Yudin ◽  
G. P. Ostromukhova ◽  
R. F. Kononova ◽  
M. P. Kochina
Keyword(s):  
Gamma Radiation ◽  
Primary Standard ◽  
State Primary Standard ◽  
X Ray

National primary standard of air kerma, air kerma rate, exposure, exposure rate and energy flux for X-rays and gamma radiation GET 8-2019

2020 ◽  
pp. 8-12
Author(s):  
Alexandr V. Oborin ◽  
Anna Y. Villevalde ◽  
Sergey G. Trofimchuk
Keyword(s):  
Gamma Radiation ◽  
Energy Flux ◽  
Primary Standard ◽  
Average Energy ◽  
Ion Pair ◽  
X Rays ◽  
Exposure Rate ◽  
Ionization Chambers ◽  
Air Kerma ◽  
Air Kerma Rate

The results of development of the national primary standard of air kerma, air kerma rate, exposure, exposure rate and energy flux for X-rays and gamma radiation GET 8-2011 in 2019 are presented according to the recommendations of the ICRU Report No. 90 “Key Data for Ionizing-Radiation Dosimetry: Measurement Standards and Applications”. The following changes are made to the equations for the units determination with the standard: in the field of X-rays, new correction coefficients of the free-air ionization chambers are introduced and the relative standard uncertainty of the average energy to create an ion pair in air is changed; in the field of gamma radiation, the product of the average energy to create an ion pair in air and the electron stopping-power graphite to air ratio for the cavity ionization chambers is changed. More accurate values of the units reproduced by GET 8-2019 are obtained and new metrological characteristics of the standard are stated.

Research on expanding the range of reproduction of magnetic flux density of the DC field of the state primary standard GET12-2011

2020 ◽  
pp. 3-7
Author(s):  
Vladlen Ya. Shifrin ◽  
Denis I. Belyakov ◽  
Alexander E. Shilov ◽  
Denis D. Kosenko
Keyword(s):  
Magnetic Flux ◽  
Magnetic Induction ◽  
Frequency Conversion ◽  
Magnetic Measurements ◽  
Primary Standard ◽  
Uncertainty Budget ◽  
The State ◽  
State Primary Standard ◽  
Magnetic Flux Density ◽  
Constant Field

The results of works aimed at increasing the level of uniformity of measurements of the magnetic induction of a constant field – the basic value in the field of magnetic measurements. A set of equipment for reproducing a unit of magnetic induction of a constant field in the range of 1–25 mT was created and described. The inclusion of this complex in the State primary standard of units of magnetic induction, magnetic flux, magnetic moment and magnetic induction gradient GET 12-2011 will ensure the reproduction and direct transmission of the unit of permanent magnetic induction in the ranges of not only weak (10–3–1 mT), but medium (1–25 mT) and strong (0.025–1 T) magnetic fields. A quantum cesium magnetometer based on the resolved structure of cesium atoms was created to transmit the unit of magnetic induction to the region of medium fields. The procedure for calculating the frequency conversion coefficients to magnetic induction of the created quantum cesium magnetometer is described. The uncertainty budget for reproducing a unit of magnetic induction of a constant field using the created complex is estimated.

Study of Heptamethine Iodide and Heptamethine PF6 Solutions in Different Solvents for the Measurement of Low Doses of X-Ray & Gamma Radiation

2016 ◽  
Vol 5 (4) ◽  
pp. 308-317
Author(s):  
Hagos Tesfay ◽  
Erika S. Bronze-Uhle ◽  
Augusto Batagin-Neto ◽  
Anna C. Véron ◽  
Thomas Geiger ◽  
...  
Keyword(s):  
Gamma Radiation ◽  
Low Doses ◽  
X Ray

The state primary standard for the unit of mean laser power

2007 ◽  
Vol 50 (7) ◽  
pp. 695-699 ◽  
Author(s):  
V. S. Ivanov ◽  
A. F. Kotyuk ◽  
A. A. Liberman ◽  
S. A. Moskalyuk ◽  
M. V. Ulanovskii
Keyword(s):  
Laser Power ◽  
Primary Standard ◽  
The State ◽  
State Primary Standard

The state primary standard of the unit of heat-flux surface density

2009 ◽  
Vol 52 (10) ◽  
pp. 1101-1106
Author(s):  
O. M. Lozinskaya ◽  
N. I. Rybak ◽  
V. Ya. Cherepanov ◽  
E. M. Sheinin ◽  
V. A. Yamshanov
Keyword(s):  
Heat Flux ◽  
Surface Density ◽  
Primary Standard ◽  
The State ◽  
State Primary Standard ◽  
Flux Surface

Get 172–2016, State Primary Standard of Unit of Surface Density of Thermal Flux

2018 ◽  
Vol 61 (3) ◽  
pp. 193-198
Author(s):  
N. I. Rybak ◽  
V. Ya. Cherepanov ◽  
E. M. Sheinin ◽  
V. A. Yamshanov
Keyword(s):  
Surface Density ◽  
Thermal Flux ◽  
Primary Standard ◽  
State Primary Standard
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