Ernesto López

University of Missouri–St. Louis

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Ernesto Mainegra‐Hing

National Research Council Canada

R. Capote

International Atomic Energy Agency

Laura Hospido Quintana

Bank of Spain

Olympia Bover Hidiroglu

Cristina Barceló Varona

Bank of Spain

Richard Rosenfeld

University of Missouri–St. Louis

Richard Rosenfeld

University of Missouri–St. Louis

Sergio Puente Díaz

Bank of Spain

Ana Valentina Regil Amorena

Bank of Spain

E. Garcı́a-Toraño

Universitat de Barcelona

Cooperative Institutions

Bank of Spain

Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear

International Atomic Energy Agency

Los Alamos National Laboratory

Universidad Politécnica de Madrid

University of Missouri–St. Louis

Brookhaven National Laboratory

Universitat de Barcelona

Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas

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Dose rate constants for¹²⁵I,¹⁰³Pd,¹⁹²Ir and¹⁶⁹Yb brachytherapy sources: an EGS4 Monte Carlo study

Physics in Medicine and Biology (1998)

Ernesto Mainegra‐Hing R. Capote Ernesto López

An exhaustive revision of dosimetry data for 192Ir, 125I, 103Pd and 169Yb brachytherapy sources has been performed by means of the EGS4 simulation system. The DLC-136/PHOTX cross section library, water molecular form factors, bound Compton scattering and Doppler broadening of the Compton-scattered photon energy were considered in the calculations. The absorbed dose rate per unit contained activity in a medium at 1 cm in water and air-kerma strength per unit contained activity for each seed model were calculated, allowing the dose rate constant (DRC) A to be estimated. The influence of the calibration procedure on source strength for low-energy brachytherapy seeds is discussed. Conversion factors for 125I and 103Pd seeds to obtain the dose rate in liquid water from the dose rate measured in a solid water phantom with a detector calibrated for dose to water were calculated. A theoretical estimate of the DRC for a 103Pd model 200 seed equal to 0.669 +/- 0.002 cGy h(-1) U(-1) is obtained. Comparison of obtained DRCs with measured and calculated published results shows agreement within 1.5% for 192Ir, 169Yb and 125I sources.

Kerma

10.1088/0031-9155/43/6/014

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Citations (34)

Programmable Zone Dosimeter for Operational Monitoring and Measurement of External Gamma Radiation

AIP conference proceedings (2011)

René Toledo Juan Fco. Osorio Ernesto López Leodibel Pablo Claro José A Galván

The ZONE DOSIMETER is a high technology portable device, designed on the base of strict quality requirements. It uses real‐time digital techniques in order to enhance the quality of monitoring. The dosimeter measures the dose rate of external γ (gamma) radiation, which allows determining the dose of radiation to which the personal is exposed. In this manner, the accomplishment of the regulations of radiological protection and security in institutions where ionizing radiations are used is assured. The dosimeter is commercialized with a fixed pre‐calibration; nevertheless, it is up to the user to obtain all the certifications required by the national legislations for its operation within the system of radiological security. It may also be used in Laboratories of Nuclear Medicine.

Radiation monitoring

Dose rate

10.1063/1.3682869

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Pandemic, Social Unrest, and Crime in U.S. Cities (September 2021 Update)

Richard Rosenfeld Ernesto López

Social unrest

Pandemic

Unrest

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Citations (6)

Pandemic, Social Unrest, and Crime in U.S. Cities

Federal Sentencing Reporter (2020)

Richard Rosenfeld Ernesto López

Research Article| December 01 2020 Pandemic, Social Unrest, and Crime in U.S. Cities Richard Rosenfeld, Richard Rosenfeld University of Missouri, St. Louis Search for other works by this author on: This Site PubMed Google Scholar Ernesto Lopez, Jr Ernesto Lopez, Jr University of Missouri, St. Louis Search for other works by this author on: This Site PubMed Google Scholar Federal Sentencing Reporter (2020) 33 (1-2): 72–82. https://doi.org/10.1525/fsr.2020.33.1-2.72 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Cite Icon Cite Search Site Citation Richard Rosenfeld, Ernesto Lopez; Pandemic, Social Unrest, and Crime in U.S. Cities. Federal Sentencing Reporter 1 December 2020; 33 (1-2): 72–82. doi: https://doi.org/10.1525/fsr.2020.33.1-2.72 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentFederal Sentencing Reporter Search This content is only available via PDF. © 2020 Vera Institute of Justice. All rights reserved.2020 Article PDF first page preview Close Modal You do not currently have access to this content.

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Unrest

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10.1525/fsr.2020.33.1-2.72

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Citations (127)

Encuesta de competencias financieras 2016

Olympia Bover Hidiroglu Laura Hospido Quintana Ernesto López

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Citations (2)

Anisotropy function for¹⁹²Ir low-dose-rate brachytherapy sources: an EGS4 Monte Carlo study

Physics in Medicine and Biology (2001)

R. Capote Ernesto Mainegra‐Hing Ernesto López

The anisotropy function of low-dose-rate 192Ir interstitial brachytherapy sources was studied. Absolute dose rates around 192Ir seeds with stainless steel or platinum cladding and a platinum covered wire have been estimated using the EGS4 Monte Carlo simulation system with a very well tested user code. Our results were compared with available experimental data. Excellent agreement between calculated and measured anisotropy function was found for stainless steel clad 192Ir sources, except along the longitudinal axis of the sources. Dosimetry data for the platinum covered seed and 3 mm long wire with platinum cladding as well as for the stainless steel clad 192Ir source are presented in TG43 format. The influence of phantom dimensions on the anisotropy function was found to be non-negligible over 7 cm, enhancing the anisotropy function by 1-2%. Our results have estimated statistical uncertainties below 1% at 1 sigma level up to 10 cm excluding the longitudinal axis where statistical uncertainties below 3% up to 10 cm are observed.

Dose rate

10.1088/0031-9155/46/5/311

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Citations (5)

Radial dose functions for¹⁰³Pd,¹²⁵I,¹⁶⁹Yb and¹⁹²Ir brachytherapy sources: an EGS4 Monte Carlo study

Physics in Medicine and Biology (2000)

Ernesto Mainegra‐Hing R. Capote Ernesto López

Radial dose functions g(r) in water around 103Pd, 125I, 169Yb and 192Ir brachytherapy sources were estimated by means of the EGS4 simulation system and extensively compared with experimental as well as with theoretical results. The DLC-136/PHOTX cross section library, water molecular form factors, bound Compton scattering and Doppler broadening of the Compton-scattered photon energy were considered in the calculations. Use of the point source approach produces reasonably accurate values of the radial dose function only at distances beyond 0.5 cm for 103Pd sources. It is shown that binding corrections for Compton scattering have a negligible effect on radial dose function for 169Yb and 192Ir seeds and for 103Pd seeds under 5.0 cm from the source centre and for the 125I seed model 6702 under 8.0 cm. Beyond those limits there is an increasing influence of binding corrections on radial dose function for 103Pd and 125I sources. Results in solid water medium underestimate radial dose function for low-energy sources by as much as 6% for 103Pd and 2.5% for 125I already at 2 cm from source centre resulting in a direct underestimation of absolute dose rate values. It was found necessary to consider medium boundaries when comparing results for the radial dose function of 169Yb and 192Ir sources to avoid discrepancies due to the backscattering contribution in the phantom medium. Values of g(r) for all source types studied are presented. Uncertainties lie under 1% within one standard deviation.

Radial function

Photon energy

10.1088/0031-9155/45/3/309

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Citations (24)

Pandemic, Social Unrest, and Crime in U.S. Cities (March 2021 Update)

Richard Rosenfeld Ernesto López

Pandemic

Unrest

Social unrest

2019-20 coronavirus outbreak

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Citations (4)

The WinALPHA code for the analysis of alpha-particle spectra

Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment (2004)

R. Capote Noy E. Garcı́a-Toraño Ernesto Mainegra‐Hing Ernesto López

Alpha particle

Code (set theory)

Alpha (finance)

Particle (ecology)

Semiconductor detector

Atomic Energy

10.1016/j.nima.2004.02.010

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Citations (21)

The financial position of the workers most affected by the pandemic: an analysis drawing on the Spanish Survey of Household Finances

SSRN Electronic Journal (2020)

María del Pilar Alvargonzález Muñoz Myroslav Pidkuyko Ernesto López

In the European economies, employment in the retail sector, in accommodation and food services and in the arts and recreation activities has been hit especially hard by the pandemic, so it is important to ascertain the financial resources that the individuals working in these sectors have available to withstand a possible fall in their income. This article draws on the Banco de Espana’s Survey of Household Finances (EFF, by its Spanish abbreviation) to characterise the financial position of the workers most affected by the present crisis. In 2017, these sectors employed approximately half of all women and the under-35s, two population groups with relatively lower labour income levels. In many cases, these workers lived in households that included higher income earners, which may partially mitigate the incidence of possible job losses. Even so, in 2017, 28% of those employed in the sectors affected lived in households whose financial assets amounted to less than one month’s income, and one in 12 lived in households for which debt repayments amounted to more than 40% of their pre-tax income. Among the workers in the sectors most affected by the pandemic, the financial position of those who were less able to work from home and those employed in the accommodation and food services and arts and recreation sectors was relatively more vulnerable.

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Household income

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