Lev Stanislawowitsch Kolowrat-Chervinsky

Lev Stanislavovich Kolowrat Tscherwinski ( Russian Лев Станиславович Коловрат-Червинский ; December 4 ^{. Jul} / 16th December  1884 ^greg. , † 24. January 1921 ) was a Russian physicist .

Life

Kolowrat Tscherwinski came from a noble family of the province of Vitebsk . His grandfather Yevstafi Kolovrat-Chervinsky was the first chairman of the Tauride district court. His father Stanislaw Evstafijewitsch Kolowrat-Tscherwinski was arrested as a student at the St. Petersburg Technology Institute for distributing illegal printed matter. Kolowrat-Tscherwinski graduated from the University of St. Petersburg in 1904.

1906–1911 Kolowrat-Tscherwinski worked in Paris in the Marie Curies laboratory . Under her direction, he prepared the tables for Constantes Radioactives . In 1910 he showed that the pure radium emits the weaker beta radiation in addition to the alpha radiation . He investigated the emanation of radon from solids containing radium . His work formed the basis for his master's thesis in 1918.

1915–1916 Kolowrat-Tscherwinski was a physicist at the Mineralogical Laboratory of the Academy of Sciences . It was involved in the work of the expedition to Tuja-Mujunski Radium ore deposit- in Fergana Valley 1907-1916 under the leadership of Vladimir Ivanovich Wernadskis where Dmitri Ivanovich Muschketow and Dmitry Vasilyevich Naliwkin participated. Kolowrat-Chervinsky looked for signs of radioactivity in the air of caves and nearby water sources. Wladimir Iwanowitsch Lutschizki and Boris Alexandrowitsch Lindener cooperated with the expedition . A geological and petrographic map of the region was created with the results of the expedition . However, no other uranium ore deposits were found.

After the October Revolution , Kolowrat-Chervinsky headed the radium department of the State Radiological Institute in Petrograd in 1918 . He became a member of the Rare and Radioactive Materials Department of the Academy of Sciences Commission for the Study of Natural and Productive Forces of Russia, headed by Vladimir Ivanovich Vernadsky.

The mineral Kolovratite was named after Kolowrat-Tscherwinski .

Kolowrat-Chervinski's brother Juri (Georges De Kolovrat) was a linguist and translator .

Individual evidence

1. ↑ И. И. Якобсон: В. А. Бородовский и Л. С. Коловрат-Червинский (Из истории ранних радиоактивных исследований в России) . In: Успехи физических наук . tape 47 , no. 1 , 1952.
2. ^ Léon Kolowrat: Tables des Constantes Radioactives . In: Radium (Paris) . tape 11 , no. 1 , 1914, p. 1–6 , doi : 10.1051 / radium: 019140011010100 ( archives-ouvertes.fr [PDF; accessed February 10, 2018]).
3. ↑ Мушкетов Д. И .: Краткий отчет о геологических исследованиях в восточной Фергане в 1913–1915 гг . In: Известия Геологического комитета . tape 34 , no. 302 , 1915, pp. 1187-1206 .
4. ↑ И.Н. Бекман: РАДИЙ (Учебное пособие) . Московский государственный университет им. М.В.Ломоносова Химический факультет Кафедра радиохимии, Moscow 2010 ( narod.ru [accessed February 10, 2018]). РАДИЙ (Учебное пособие) ( Memento of the original from September 26, 2015 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.  
5. ↑ Mineralienatlas - Fossilatlas: Kolovratit (Kolovratite) (accessed on February 10, 2018).