A5031439043- Radioactivity and Radon Measurements
- Nuclear Physics and Applications
- Radiation Detection and Scintillator Technologies
- Graphite, nuclear technology, radiation studies
- Nuclear and radioactivity studies
- Radioactive contamination and transfer
- Laser-Plasma Interactions and Diagnostics
- Ion-surface interactions and analysis
- Nuclear reactor physics and engineering
- Radiation Therapy and Dosimetry
- Spanish Literature and Culture Studies
- Radiation Dose and Imaging
- Integrated Circuits and Semiconductor Failure Analysis
- Earthquake Detection and Analysis
- Force Microscopy Techniques and Applications
- Laser-induced spectroscopy and plasma
- Nuclear Materials and Properties
- History of Education in Spain
- Media, Journalism, and Communication History
- Analog and Mixed-Signal Circuit Design
- Radiation Effects and Dosimetry
- Air Quality and Health Impacts
- Analytical Chemistry and Sensors
- Radiation Effects in Electronics
- Atomic and Subatomic Physics Research
National Institute of Astrophysics, Optics and Electronics
2002-2024
Universidad Nacional Autónoma de México
2013-2022
Laboratório Nacional de Astrofísica
2003-2015
Instituto de Física La Plata
2004
University of Pavia
2003
Universitat de Barcelona
2002
Universitat Politècnica de Catalunya
2002
Westmont College
1999
Instituto de Investigaciones Eléctricas
1991
The average angular distribution of neutron emissions has been measured in the Fuego Nuevo II (FN-II) dense plasma focus device (5 kJ) by means CR-39 plastic nuclear track detectors. When pure deuterium is used as filling gas, data can be adjusted to a Gaussian function, related anisotropic emission, superposed on constant pedestal, isotropic emission. deuterium–argon admixtures are used, contribution best represented parabola. same analysis applied previously reported results, for fewer...
The FN-II Dense Plasma Focus is a small (< 5kJ ) Mather type device, where the dependence of neutron yield and its anisotropy, in terms deuterium filling pressure, emission angular distribution have been studied. Two diferent electrode configurations tested, showing that their geometry plays an important role both on anisotropy. Time integrated anisotropy has measured with silver activation counters, shot to basis. CR-39 nuclear track detectors are used determine neutrons, averaged over tens...
Journal Article Commercial optical fibre as TLD material Get access G. Espinosa, Espinosa *Corresponding author: espinosa@fisica.unam.mx Search for other works by this author on: Oxford Academic PubMed Google Scholar J. I. Golzarri, Golzarri Bogard, Bogard García-Macedo Radiation Protection Dosimetry, Volume 119, Issue 1-4, September 2006, Pages 197–200, https://doi.org/10.1093/rpd/nci564 Published: 18 May 2006
Journal Article El Azteca: Francisco Olazabál and Latino Pentecostal Charisma, Power, Faith Healing in the Borderlands Get access Gastón Espinosa is Assistant Professor of Religious Studies at Westmont College Santa Barbara, CA 93108-1099 Search for other works by this author on: Oxford Academic Google Scholar American Academy Religion, Volume 67, Issue 3, September 1999, Pages 597–616, https://doi.org/10.1093/jaarel/67.3.597 Published: 01 1999
Time integrated measurements of the angular distributions fusion products and x rays in a small dense plasma focus machine are made inside discharge chamber, using passive detectors. The is operated at 37kV with stored energy 4.8kJ deuterium filling pressure 2.75torr. Distributions protons neutrons measured CR-39 Lantrack® nuclear track detectors, on 1.8×0.9cm2 chips, 500μm thick. A set detectors was placed semicircular Teflon® holder, 13cm away from column, covered 15μm Al filters, thus...
The noise performances of a class biquadratic time-continuous filters based on the use operational transconductance amplifiers and capacitors (OTA-C filters) are investigated compared in terms filter parameters topologies. Both white 1/f included modeling characteristics real OTA, expressions for total output given sections. Indications best choice capacitor values gains given, order to minimize noise. circuit optimizer like NICE-SPICE direct optimization dynamic range has been...
Noise performances of OTA-C (operational transconductance amplifiers and capacitors) filters are presented in order to derive their dynamic range limitations. In particular, the noise elementary building blocks considered, then several biquadratic structures is evaluated. Both white 1/f contributions taken into account. Analytical expressions simulated results given together with some practical design considerations. The put evidence how choice any topology affects limitations filter....
Radioactive contamination at planet scale started in 1945 when the first nuclear taste was performed Alamo Gordo, New Mexico, followed by two war actions Japan, a second test Bikini, and more than 2000 tests were all over world different countries since then on. In this context, 10 main accidents power research reactors seem to be negligible general radioactive scale, which can measured comparing radioactivity of fission product 137Cs with that natural 40K, both detected from marine...
Mexico City, also called Federal District, covers an area of 1504 km2, and has more than 8 million inhabitants. It is located 2200 m above sea level in a zone high seismicactivity, founded on ancient lake. At present it one the most crowded contaminated cities world with thermal inversions. Chemical contaminants aerosol particles environmental air are year. Due to these geological, socioeconomic conditions, District presents very peculiar characteristics, which important for understanding...