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Browsing by Subject "Nuclear Science & Technology"

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Absolute differential and total cross sections for N+ formation from the interaction of N-2(+) with He and Ar

Martínez, H; Fuentes, BE (2005)

Differential and total cross sections for the production of N+ fragment formed by the collision of N-2(+) on He and Ar, at projectile energies between 1.0 and 5.0 keV and for scattering angles from -4 degrees to 4 degrees ...
ANGULAR-DISTRIBUTIONS OF H- FORMATION FROM INTERACTION OF H-2(+) WITH KR

FUENTES, BE; CISNEROS, C; DEURQUIJO, J; Martínez, H; Alvarez, I (1995)

Differential cross sections were determined for the production of H- fragments produced by the collision of H2+ on Kr at projectile energies between 1.0 to 5.0 keV and for scattering angles from -4-degrees to 4-degrees. ...
Calibration and monitoring of water Cherenkov detectors with stopping and crossing muons

Alarcon, M; Alcaraz, F; Barrera, J; Cantoral, E; D'Olivo, JC; Fernandez, A; Medina, M; Nellen, L; Pacheco, C; Roman, S; Salazar, H; Valdes-Galicia, JF; Vargas, M; Villasenor, L; Zepeda, A (1999)

The Auger Observatory water Cherenkov detectors (WCD) will require that the initial calibration and subsequent monitoring of each of the WCDs be done in a remote way. We present a method to perform these tasks based on the ...
Dissociative capture and collision-induced dissociation of H-2(+) in SF6

Fuentes, BE; Tejeda, A; Martínez, H (2007)

Absolute differential and total cross-sections for the production of H+ and H-0 fragments in the energy range of 1-5 keV and scattering angles from -4.6 degrees to 4.6 degrees, for the collision of H-2(+) on SF6 are reported. ...
Double electron capture by protons in collisions with H-2

Salazar-Zepeda, MH; Gleason, C; Hinojosa, G; González, E; González-Magana, O (2010)

Double electron capture of protons in collisions with molecular hydrogen in the energy range 1.5-10 keV was studied by measuring the resulting H- velocity distributions. In this paper, a technique that provides experimental ...
Double electron capture cross-sections by protons in collisions with He

Cabrera-Trujillo, R; Gleason, C; Salazar, M; Hinojosa, G; González-Magana, O (2009)

Double electron capture (DEC) by protons from He was studied in collisions at energies in the keV regime, theoretically and experimentally. Theoretical cross-sections were calculated using the electron nuclear dynamic ...
EDXRF determination of Pb in aerosol samples from Mexico Valley

Lartigue, J; Padilla, R; Martínez, T; Orta, M (2001)

Atmospheric pollution in very populated towns is mainly generated from fuel combustion and industrial activity, though in some regions, soil erosion, residues incineration and forest fires contribute appreciably. In the ...
Effect of signal noise on the learning capability of an artificial neural network

Vega, JJ; Reynoso, R; Calvet, HC (2009)

Digital Pulse Shape Analysis (DPSA) by artificial neural networks (ANN) is becoming an important tool to extract relevant information from digitized signals in different areas. In this paper, we present a systematic evidence ...
ESR and optical absorption studies of gamma- and electron-irradiated sugar crystals

Flores, C; Cabrera, E; Calderon, T; Adem, E; Boldu, J; Ovalle, P; Murrieta, H; Hernández, J; Muñoz, E (2000)

Electron spin resonance (ESR) studies of the free radicals induced in gamma- or electron-irradiated sugar crystals were performed, The number of radicals increases linearly, pointing out that this material can be used as ...
Frozen Solutions of Fricke Dosimeter

Ramos, A; Ramos-Bernal, S; Frias, D; Mosqueira, FG; Negron-Mendoza, A (2008)

Commercial product irradiation using ionizing radiation has provided a method to safely treat products in a variety of ways. Temperature is a very important factor when determining the absorbed dose of the product. However, ...
HOMOGENEITY AND FISSURE DETERMINATION IN URANIUM BARS WITH SOLID-STATE NUCLEAR TRACK DETECTORS

CASTILLO, F; GAMBOA, I; ESPINOSA, G; SOMOGYI, G; TAPIA, A (1984)
INDOOR RADON MEASUREMENT METHODOLOGY BY SOLID-STATE NUCLEAR TRACK DETECTORS

ESPINOSA, G; Ramos, S (1992)

The measurement of radon using solid state nuclear track detectors is presented. The importance of radon in environmental radiation and to human health is well known and thus the measurement and evaluation of indoor radon ...
Iodine sorption by microwave irradiated hydrotalcites

Paredes, SP; Fetter, G; Bosch, P; Bulbulian, S (2006)

Mg-Al hydrotalcite-like compounds (HT) were prepared by the microwave method on the one hand with ethoxide-acetylacetonate and oil the other with acetylacetonate as precursors. They presented a maximum sorption capacity ...
Ion beam analysis of copper selenide thin films prepared by chemical bath deposition

Andrade, E; Nair, PK; Nair, MTS; Zavala, EP; Huerta, L; Rocha, MF; García, VM (2000)

Analyses of Rutherford back scattered (RBS) He-4(+)-particle spectra of copper selenide thin films deposited on glass slides by chemical bath were carried out to determine the changes brought about in the thin him by ...
Ionoluminescence of diamond, synthetic diamond and simulants

del Castillo, HC; Ruvalcaba-Sil, JL; Barboza-Flores, M; Belmont, E; Calderon, T (2007)

lonoluminescence (IL) spectra of diamond (natural samples and synthetic CVD) and its more common synthetic simulates such as sapphire, spinel, cubic zirconia, strontium titanate and yttrium aluminium garnet (YAG: Er) will ...
Measurement of the dispersion law for hydrophobic silica aerogel SP-25

Plascencia, JC; Nunez, R; Menchaca-Rocha, A; Camarillo, E; Buenerd, M; Hernández, JM; VilLoro, MF (2002)

Optical properties of hydrophobic silica aerogel SP-25 have been measured, These include: a seven point dispersion law n(lambda = 266.2 - 514.5 rim), absorbance, luminescence and other physical properties, The effect of ...
MEASUREMENTS OF RADON LEVELS INSIDE MEXICAN CAVES

BORAU, J; ESPINOSA, G; GOLZARRI, JI; González, A (1993)

Living animal species on earth have been exposed to environmental radon from the very beginning of time. The effects of radiation, combined with other natural parameters such as temperature, humidity, salt contents, etc., ...
Measurements of the optical density and the thermoluminescent response of LiF : Mg,Ti exposed to high doses of Co-60 gamma rays

Gamboa-deBuen, I; Montano-García, C (2006)

The absorption spectra and glow curves of LiF:Mg,Ti exposed to high doses of Co-60 gamma rays as well as the optical density curves and thermoluminescent (TL) response as a function of dose were measured. Absorption peaks ...
A new system to fuel loading-and control rod pattern optimization in boiling water reactors

Ortiz, JJ; Castillo, A; Montes, JL; Perusquia, R (2007)

A new system to optimize both control rod pattern and fuel-loading design in boiling water reactors is shown. The system is named OCOTH, and it is based on heuristic techniques such as genetic algorithms, neural networks, ...
On the correct measurement of relative heavy charged particles to gamma thermoluminescent efficiencies

Avila, O; Gamboa-deBuen, I; Aviles, P; Estrada, D; Buenfil, AE; Ruiz-Trejo, C; Brandan, ME; Horowitz, YS; Rodríguez-Villafuerte, M; González, P (2002)

In order to better understand the most important experimental aspects for performing correct measurements of relative thermoluminescent (TL) efficiencies, an investigation has been carried out to quantify the effect of ...

Now showing items 1-20 of 37

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