Absorption of cosmic radiation using lead and aluminum: obtaining a second maximum (1948)
Life and Doctoral Workedit
Estrella Mazzoli de Mathov earned her Ph.D. at the University of Buenos Aires (UBA) with a dissertation titled, Absorption of cosmic radiation using lead and aluminum: obtaining a second maximum (1948), under the direction of Teófilo Isnardi.[2]
During her graduate studies, while conducting research for her doctoral thesis, Mathov began working with Geiger Müller counters, which are used for detecting and measuring ionizing radiation.[3]
Post Doctoral Workedit
After graduating, in March 1949, she traveled to Brazil for a scientific conference about cosmic ray detection and learned about new projects and techniques to detect cosmic rays. According to Roederer:
"A group of us studying natural science and mathematics at the University of Buenos Aires gathered to hear teaching assistant Estrella Mathov talk about her trip to Brazil. Estrella had just returned from a scientific conference that had been attended by many great cosmic-ray physicists, including Cecil Powell, Beppo Occhialini, and Brazil’s own César Lattes. With great enthusiasm, she was telling everybody about the new projects and techniques that were just emerging in cosmic-ray research. Since Estrella was already working with Geiger counters, she encouraged the few physics majors, including me, to get involved with particle detection using nuclear photographic emulsions. That new technique was particularly attractive because it did not require complex and costly electronic equipment."[4][5]
To help her graduate students begin, she had returned from the conference with several unexposed plates.[3] These plates were similar to ordinary photographic plates but had thick and ultra-fine grain emulsions. To make new ones, the students created their lab from a small storage space at the university. The advantage of Mathov's investigations was that plate preparation did not require complex or costly equipment.[5][6]
Once a plate was exposed to the atmosphere at a high altitude and it was developed, the students used a borrowed high-magnification optical microscope to look for tell-tale traces of cosmic rays, which appeared as one or several rows of silver grain images showing the trajectories of the electrically charged particles that had passed through the plate. Once revealed, the traces could be analyzed to reveal the particle's electrical charge and energy.[3]
^"RAYOS CÓSMICOS EN LA ARGENTINA - Observatorio Pierre Auger" (in Spanish). 2023-07-17. Retrieved 2023-10-30.
^Mathov, Mazzolli de (1948). Absorción de la radiación cósmica utilizando plomo y aluminio : obtención de un segundo máximo (Tesis Doctoral thesis). Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales.
^ abc. 2011-07-06. Archived from the original on 2011-07-06. Retrieved 2023-10-30.
^ abRoederer, Juan (2003). "Early Cosmic-Ray Research in Argentina". pubs.aip.org. Retrieved 2023-10-31.
^ abDobrigkeit, Carola (2020). "Cosmic Ray Physics in Brazil". Cern. Retrieved 2023-10-31.
^Roederer, Juan. (2019). Space Physics from Both Ends of the Americas, 1949–2019. Journal of Geophysical Research: Space Physics. 124. 10.1029/2019JA027049.
April 08, 2024
estrella, mazzoli, mathov, estrella, mazzoli, mathov, argentinian, physicist, instrumental, cosmic, research, buenos, aires, 1949, born, 1911, march, 1911argentinadied5, january, 1991, 1991, aged, buenos, aires, argentinaalma, materuniversity, buenos, aires, s. Estrella A Mazzoli de Mathov was an Argentinian physicist who was instrumental to cosmic ray research in Buenos Aires in 1949 1 Estrella Mazzoli de MathovBorn 1911 03 23 23 March 1911ArgentinaDied5 January 1991 1991 01 05 aged 79 Buenos Aires ArgentinaAlma materUniversity of Buenos Aires PhD Scientific careerThesisAbsorption of cosmic radiation using lead and aluminum obtaining a second maximum 1948 Life and Doctoral Work editEstrella Mazzoli de Mathov earned her Ph D at the University of Buenos Aires UBA with a dissertation titled Absorption of cosmic radiation using lead and aluminum obtaining a second maximum 1948 under the direction of Teofilo Isnardi 2 During her graduate studies while conducting research for her doctoral thesis Mathov began working with Geiger Muller counters which are used for detecting and measuring ionizing radiation 3 Post Doctoral Work editAfter graduating in March 1949 she traveled to Brazil for a scientific conference about cosmic ray detection and learned about new projects and techniques to detect cosmic rays According to Roederer A group of us studying natural science and mathematics at the University of Buenos Aires gathered to hear teaching assistant Estrella Mathov talk about her trip to Brazil Estrella had just returned from a scientific conference that had been attended by many great cosmic ray physicists including Cecil Powell Beppo Occhialini and Brazil s own Cesar Lattes With great enthusiasm she was telling everybody about the new projects and techniques that were just emerging in cosmic ray research Since Estrella was already working with Geiger counters she encouraged the few physics majors including me to get involved with particle detection using nuclear photographic emulsions That new technique was particularly attractive because it did not require complex and costly electronic equipment 4 5 To help her graduate students begin she had returned from the conference with several unexposed plates 3 These plates were similar to ordinary photographic plates but had thick and ultra fine grain emulsions To make new ones the students created their lab from a small storage space at the university The advantage of Mathov s investigations was that plate preparation did not require complex or costly equipment 5 6 Once a plate was exposed to the atmosphere at a high altitude and it was developed the students used a borrowed high magnification optical microscope to look for tell tale traces of cosmic rays which appeared as one or several rows of silver grain images showing the trajectories of the electrically charged particles that had passed through the plate Once revealed the traces could be analyzed to reveal the particle s electrical charge and energy 3 In 1950 1951 Beatriz Cougnet and Juan Roederer still students exposed nuclear plates at high altitudes in the Andes mountains and obtained the second reported detection of subatomic particles called pi mesons or pions 4 7 References edit RAYOS CoSMICOS EN LA ARGENTINA Observatorio Pierre Auger in Spanish 2023 07 17 Retrieved 2023 10 30 Mathov Mazzolli de 1948 Absorcion de la radiacion cosmica utilizando plomo y aluminio obtencion de un segundo maximo Tesis Doctoral thesis Universidad de Buenos Aires Facultad de Ciencias Exactas y Naturales a b c Las primeras investigaciones 2011 07 06 Archived from the original on 2011 07 06 Retrieved 2023 10 30 a b Roederer Juan 2003 Early Cosmic Ray Research in Argentina pubs aip org Retrieved 2023 10 31 a b Dobrigkeit Carola 2020 Cosmic Ray Physics in Brazil Cern Retrieved 2023 10 31 Bonifazi C 2010 PoS CRA School 039 Cosmic Ray Physics in Argentina https pos sissa it 118 039 pdf Roederer Juan 2019 Space Physics from Both Ends of the Americas 1949 2019 Journal of Geophysical Research Space Physics 124 10 1029 2019JA027049 Retrieved from https en wikipedia org w index php title Estrella Mazzoli de Mathov amp oldid 1195164435, wikipedia, wiki, book, books, library,
