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Environmental health specialists (EHSs) working for local health departments have reported that the level at which they are paid is too low and should be increased. The problem faced by most local health departments is how to provide elected officials with information that supports salary increases. To research taxpayers' opinions about salary increases and educational requirements for local HISS, a mail survey was conducted in a central Indiana county. The survey results indicated that 72.5 percent of the respondents supported an increase in FHS salaries from a 520,000-$23,000 level to a $23,000-$26,000 level. Approximately 60.5 percent of the responses indicated that EHSs should have a four-year college degree. Fifty-four percent of the respondents required that additional environmental health services be provided by the local health department. On the part of females, there was significantly more demand than on the part of males for local health departments to provide more environmental health services (p<.05). Demand for more environmental health services included demand for stream pollution control, radon testing, hazardous-material cleanup, and lead-paint analysis. In frequency of requests, stream pollution control ranked highest. [ABSTRACT FROM AUTHOR]

The advanced radiographic capability (ARC) laser system, part of the National Ignition Facility (NIF) at Lawrence Livermore National Laboratory, is a short-pulse laser capability integrated into the NIF. The ARC is designed to provide adjustable pulse lengths of ∼1-38 p s in four independent beamlets, each with energies up to 1 kJ (depending on pulse duration). A detailed model of the ARC lasers has been developed that predicts the time- and space-resolved focal spots on target for each shot. Measurements made to characterize static and dynamic wavefront characteristics of the ARC are important inputs to the code. Modeling has been validated with measurements of the time-integrated focal spot at the target chamber center (TCC) at low power, and the space-integrated pulse duration at high power, using currently available diagnostics. These simulations indicate that each of the four ARC beamlets achieves a peak intensity on target of up to a few 10 18 W / c m 2 .

The implosion efficiency in inertial confinement fusion depends on the degree of stagnated fuel compression, density uniformity, sphericity, and minimum residual kinetic energy achieved. Compton scattering-mediated 50-200 keV x-ray radiographs of indirect-drive cryogenic implosions at the National Ignition Facility capture the dynamic evolution of the fuel as it goes through peak compression, revealing low-mode 3D nonuniformities and thicker fuel with lower peak density than simulated. By differencing two radiographs taken at different times during the same implosion, we also measure the residual kinetic energy not transferred to the hot spot and quantify its impact on the implosion performance.

Background and Study Objective: Australia was one of nine participating countries in the epidemiology Phase II Lymphoedema Impact and Prevalence - International (LIMPRINT) project to determine the number of people with chronic edema (CO) in local health services. Methods and Results: Data collection occurred through questionnaire-based interviews and clinical assessment with provided LIMPRINT tools. Four different types of services across three states in Australia participated. A total of 222 adults participated with an age range from 22 to 102 years, and 60% were female. Site 1 included three residential care facilities (54% of participants had swelling), site 2 was community-delivered aged care services (24% of participants had swelling), site 3 was a hospital setting (facility-based prevalence study; 28% of participants had swelling), and site 4 was a wound treatment center (specific patient population; 100% of participants had swelling). Of those with CO or secondary lymphedema, 93% were not related to cancer, the lower limbs were affected in 51% of cases, and 18% of participants with swelling reported one or more episodes of cellulitis in the previous year. Wounds were identified in 47% ( n  = 105) of all participants with more than half of those with wounds coming from the dedicated wound clinic. Leg/foot ulcer was the most common type of wound (65%, n  = 68). Conclusions: Distances between services, lack of specialized services, and various state funding models contribute to inequities in CO treatment. Understanding the high number of noncancer-related CO presentations will assist health services to provide timely effective care and improve referral pathways.

A versatile, rapidly convergent, iterative algorithm is presented for the construction of kinoform phase plates for tailoring the far-field intensity distribution of laser beams. The method consists of repeated Fourier transforming between the near-field and the far-field planes with constraints imposed in each plane. For application to inertial confinement fusion, the converged far-field pattern contains more than 95% of the incident energy inside a desired region and is relatively insensitive to beam aberrations.

To provide high-energy, high-power beams at short wavelengths for inertial-confinement fusion experiments, we routinely convert the 1.05-microm output of the Nova, Nd:phosphate-glass, laser system to its second- or third-harmonic wavelength. We describe the design and performance of the 3 x 3 arrays of potassium dihydrogen phosphate crystal plates used for type-II-type-II phase-matched harmonic conversion of the Nova 0.74-m diameter beams. We also describe an alternate type-I-type-II phasematching configuration that improves third-harmonic conversion efficiency. These arrays provide conversion of a Nova beam of up to 75% to the second harmonic and of up to 70% to the third harmonic.

High-powered glass-laser systems with multiple beams, frequency-conversion capabilities, and pulseshaping flexibility have made numerous contributions to the understanding of inertial confinement fusion and related laser-plasma interactions. The Nova laser at Lawrence Livermore National Laboratory is the largest such laser facility. We have made improvements to the Nova amplifier system that permit increased power and energy output. We summarize the nonlinear effects that now limit Nova's performance and discuss power and energy produced at 1.05-, 0.53-, and 0.35-microm wavelengths, including the results with pulses temporally shaped to improve inertial confinement fusion target performance.

We demonstrate temporal shaping of 0.35-microm-wavelength pulses produced by a third-harmonic conversion of the output from the Nova Nd:phosphate glass-laser amplifier system for use in inertial confinement fusion experiments. We describe the computer models used to calculate the pulse shape that is required as the input to the amplifier system, the experimental apparatus used to produce these pulses, and the high-power 0.35-microm shaped pulses produced in recent experiments.