scholarly journals Laser safety and hazard analysis for the temperature stabilized BSLT ARES laser system.

2003 ◽  
Author(s):  
Arnold L Augustoni
Keyword(s):  
Hazard Analysis ◽  
Laser System ◽  
Laser Safety

scholarly journals Issues of domestic and international regulation of laser safety for the population (literature review)

2021 ◽  
Vol 100 (8) ◽  
pp. 787-791
Author(s):  
Natalia Yu. Mal’kova ◽  
Milena D. Petrova
Keyword(s):  
Laser Radiation ◽  
Laser System ◽  
Visible Region ◽  
International Standards ◽  
Laser Safety ◽  
International Regulation ◽  
Regulatory Documents ◽  
Urgent Task ◽  
Search And Selection ◽  
Search For Information

Introduction. The article presents an analysis of the existing Russian and foreign literature on the issue of domestic and international regulation of laser safety for the population. Purpose. Search for information and analysis of domestic and international experience in the field of regulation of laser radiation levels for the population. The review of available scientific Russian and foreign literary sources and regulatory documents is carried out. The search and selection of sources was carried out using the open databases PubMed and RSCI. The domestic hygienic standards for continuous laser radiation in the spectral range of 380-1400 nm are much more stringent than the standards applied abroad given in IEC-1. At the same time, when developing standards for maximum permissible levels, the possibility of radiation acting on the population and the blinding effect were not taken into account. Foreign and domestic authors note the peculiarities of the effect of laser radiation in the visible region of the spectrum, including its ability to pass freely through the optical media of the eye and damage the retina and adjacent tissues. The analysis of regulatory documents showed a number of differences in the normalization of Russian and international standards, as well as the discrepancy and vagueness of requirements in existing sanitary and epidemiological documents. Conclusion. Existing standards sometimes contradict each other, which prevents a competent assessment of the danger of the laser and the laser system, so the revision of the existing regulatory framework for laser safety for the public is an urgent task, the solution of which will minimize negative changes on the part of the visual organ in persons who are not professionally connected with the action of laser radiation and qualitatively improve the hygienic assessment of laser radiation.

{10} edge dislocations in YSZ films grown on (100)MgO by PLD

1994 ◽  
Vol 52 ◽  
pp. 530-531
Author(s):  
Jason R. Heffelfinger ◽  
C. Barry Carter
Keyword(s):  
Thin Films ◽  
Semiconductor Lasers ◽  
Vapor Deposition ◽  
Substrate Surface ◽  
Laser System ◽  
Average Energy ◽  
Target Material ◽  
Chemical Vapor ◽  
Buffer Layers ◽  
Organic Chemical

Yttria-stabilized zirconia (YSZ) is currently used in a variety of applications including oxygen sensors, fuel cells, coatings for semiconductor lasers, and buffer layers for high-temperature superconducting films. Thin films of YSZ have been grown by metal-organic chemical vapor deposition, electrochemical vapor deposition, pulse-laser deposition (PLD), electron-beam evaporation, and sputtering. In this investigation, PLD was used to grow thin films of YSZ on (100) MgO substrates. This system proves to be an interesting example of relationships between interfaces and extrinsic dislocations in thin films of YSZ.In this experiment, a freshly cleaved (100) MgO substrate surface was prepared for deposition by cleaving a lmm-thick slice from a single-crystal MgO cube. The YSZ target material which contained 10mol% yttria was prepared from powders and sintered to 85% of theoretical density. The laser system used for the depositions was a Lambda Physik 210i excimer laser operating with KrF (λ=248nm, 1Hz repetition rate, average energy per pulse of 100mJ).

Food Safety Security: A new Concept for Enhancing Food Safety Measures

2012 ◽  
Vol 82 (3) ◽  
pp. 216-222 ◽  
Author(s):  
Venkatesh Iyengar ◽  
Ibrahim Elmadfa
Keyword(s):  
Food Safety ◽  
Hazard Analysis ◽  
Warning System ◽  
Shared Responsibility ◽  
Fine Tuning ◽  
Strategic Action ◽  
Surveillance Network ◽  
Measurement Systems ◽  
Critical Control Points ◽  
The Impact

The food safety security (FSS) concept is perceived as an early warning system for minimizing food safety (FS) breaches, and it functions in conjunction with existing FS measures. Essentially, the function of FS and FSS measures can be visualized in two parts: (i) the FS preventive measures as actions taken at the stem level, and (ii) the FSS interventions as actions taken at the root level, to enhance the impact of the implemented safety steps. In practice, along with FS, FSS also draws its support from (i) legislative directives and regulatory measures for enforcing verifiable, timely, and effective compliance; (ii) measurement systems in place for sustained quality assurance; and (iii) shared responsibility to ensure cohesion among all the stakeholders namely, policy makers, regulators, food producers, processors and distributors, and consumers. However, the functional framework of FSS differs from that of FS by way of: (i) retooling the vulnerable segments of the preventive features of existing FS measures; (ii) fine-tuning response systems to efficiently preempt the FS breaches; (iii) building a long-term nutrient and toxicant surveillance network based on validated measurement systems functioning in real time; (iv) focusing on crisp, clear, and correct communication that resonates among all the stakeholders; and (v) developing inter-disciplinary human resources to meet ever-increasing FS challenges. Important determinants of FSS include: (i) strengthening international dialogue for refining regulatory reforms and addressing emerging risks; (ii) developing innovative and strategic action points for intervention {in addition to Hazard Analysis and Critical Control Points (HACCP) procedures]; and (iii) introducing additional science-based tools such as metrology-based measurement systems.

High-performance OPCPA laser system

2006 ◽  
Vol 133 ◽  
pp. 701-703
Author(s):  
J. D. Zuegel ◽  
V. Bagnoud ◽  
J. Bromage ◽  
I. A. Begishev ◽  
J. Puth
Keyword(s):  
High Performance ◽  
Laser System

PEMETAAN DAERAH RENTAN GEMPA BUMI SEBAGAI DASAR PERENCANAAN TATA RUANG DAN WILAYAH DI PROVINSI SULAWESI BARAT

KURVATEK ◽  
2017 ◽  
Vol 1 (2) ◽  
pp. 41-47
Author(s):  
Marinda noor Eva
Keyword(s):  
Seismic Hazard ◽  
Hazard Analysis ◽  
Probabilistic Seismic Hazard Analysis ◽  
Seismic Hazard Analysis ◽  
Probabilistic Seismic Hazard

Penelitian mengenai daerah rawan gempa bumi ini menggunakan Metode Probabilistic Seismic Hazard Analysis (PSHA) di Provinsi Sulawesi Barat, dengan tujuan untuk memetakan tingkat kerawanan bahaya gempa bumi di Kabupaten Mamasa. Penelitian ini menggunakan data kejadian gempa bumi di Pulau Sulawesi dan sekitarnya dari tahun 1900 – 2015. Hasil pengolahan PSHA menggunakan Software Ez-Frisk 7.52 yang menghasilkan nilai hazard di batuan dasar pada kondisi PGA (T = 0,0 sekon), dengan periode ulang 500 tahun dan 2500 tahun berkisar antara (149,54 – 439,45) gal dan (287,18 – 762,81) gal. Nilai hazard di batuan dasar dengan kondisi spektra T = 0,2 sekon untuk periode ulang 500 tahun dan 2500 tahun adalah (307,04 – 1010,90) gal dan (569,48 – 1849,78) gal. Nilai hazard di batuan dasar dengan kondisi spektra T = 1,0 sekon untuk periode ulang 500 tahun dan 2500 tahun diperoleh nilai (118,01 – 265,75) gal dan (223,74 – 510,92) gal. Berdasarkan analisis PSHA, nilai PGA di Provinsi Sulawesi Barat dominan dipengaruhi oleh sumber gempa sesar.

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