[Regional differences in fertility rates in real generations in Russia (according to the 2020 population census)].

Studies on birth rate regularities in Russia in the context of the task of ensuring reproduction of the population remain relevant. Assessment of the scale and trends in regional differentiation using the method of calculating birth rates in real generations of women makes it possible to obtain a more reliable picture of the ongoing processes, to assess the reproductive potential and target groups for the most effective implementation of demographic policy measures. The article presents results of calculations of fertility rates in real generations of women for all regions of the Russian Federation in line with the 2020 population census.

Bubble-detector measurements of neutron radiation in the international space station: ISS-34 to ISS-37.

Bubble detectors have been used to characterise the neutron dose and energy spectrum in several modules of the International Space Station (ISS) as part of an ongoing radiation survey. A series of experiments was performed during the ISS-34, ISS-35, ISS-36 and ISS-37 missions between December 2012 and October 2013. The Radi-N2 experiment, a repeat of the 2009 Radi-N investigation, included measurements in four modules of the US orbital segment: Columbus, the Japanese experiment module, the US laboratory and Node 2.

Bubble-detector measurements in the Russian segment of the International Space Station during 2009-12.

Measurements using bubble detectors have been performed in order to characterise the neutron dose and energy spectrum in the Russian segment of the International Space Station (ISS). Experiments using bubble dosemeters and a bubble-detector spectrometer, a set of six detectors with different energy thresholds that is used to determine the neutron spectrum, were performed during the ISS-22 (2009) to ISS-33 (2012) missions. The spectrometric measurements are in good agreement with earlier data, exhibiting expected features of the neutron energy spectrum in space.

Measurements of the neutron dose and energy spectrum on the International Space Station during expeditions ISS-16 to ISS-21.

As part of the international Matroshka-R and Radi-N experiments, bubble detectors have been used on board the ISS in order to characterise the neutron dose and the energy spectrum of neutrons. Experiments using bubble dosemeters inside a tissue-equivalent phantom were performed during the ISS-16, ISS-18 and ISS-19 expeditions. During the ISS-20 and ISS-21 missions, the bubble dosemeters were supplemented by a bubble-detector spectrometer, a set of six detectors that was used to determine the neutron energy spectrum at various locations inside the ISS.

MOSFET dosimetry mission inside the ISS as part of the Matroshka-R experiment.

Radiation measurements of surface and deep organ doses were performed aboard the International Space Station, for the period of January 2006 to April 2007, using a MOSFET dosimetry system combined with the Matroshka-R spherical phantom. The averaged internal and surface dose rates are found to be 0.19 and 0.