نتایج جستجو برای: radiation worker
تعداد نتایج: 258727 فیلتر نتایج به سال:
The discovery of the protective adaptive response of cells to a low dose of radiation suggests applications to radiation worker/first responder protection. Its use in cancer radiotherapy has been discussed in a separate publication. This paper describes simple changes in scheduling that can make use of these beneficial adaptive effects for protection. No increase in total exposure is necessary,...
A criticality accident occurred on September 30, 1999, at the uranium conversion plant in Tokai-mura (Tokai-village), Ibaraki Prefecture, Japan. When the criticality occurred, three workers saw a "blue-white glow," and a radiation monitor alarm was sounded. They were severely exposed to neutron and gamma-ray irradiation, and subsequently developed acute radiation syndrome (ARS). One worker repo...
Large-scale epidemiological studies of U.S. Department of Energy workers have been underway since the 1960s. Despite the increasing availability of information about long-term follow-up of badge-monitored nuclear workers, standard-setting bodies continue to rely on the Life Span Study (LSS) of A-bomb survivors as the primary epidemiological basis for making judgments about hazards of low-level ...
A nested case-control study using conditional logistic regression was conducted to evaluate the exposure-response relationship between external ionizing radiation exposure and leukemia mortality among civilian workers at the Portsmouth Naval Shipyard (PNS), Kittery, Maine. The PNS civilian workers received occupational radiation exposure while performing construction, overhaul, repair and refue...
The present state of the art in photoinjector designs will be presented in this review. We will discuss both proposed and operational photoinjectors with operating frequencies from L-band (1.424 GHz) to X-band (11.424 GHz). Also a novel pulsed DC gun will be presented. All the RF photoinjector discussed here use an emittance compensation scheme [1] [2] to align the different slices of the the e...
abstract background: workplace exposures as in clinical work can cause disorders. some organ systems are at risk. this work may be a risk factor for early symptoms of menopause. the objective of this study was to compare the early symptoms of menopause between hospital personnel who work in clinical and office settings. materials and methods: this was a historical cohort study conducted on clin...
Background and aims: Compact fluorescent lamps(CFLs) are low-pressure mercury vapor lamps, which are more useful than other light sources. Some studies reported the leakage of UV radiation from CFLs. The aim of this study was measuring of ultraviolet radiation from universal compact fluorescent lamps in Iran. Methods: In this study, measuring of UV radiation of 54 bulb compact fluorescent lamps...
an Appropriate Basis for Nuclear Worker Compensation? Wakeford (2003) and Little (2003) wrote in response to our comments about the use of A-bomb survivor studies as a basis for U.S. nuclear worker compensation decisions (Wing and Richardson 2002). Wakeford (2003) disagrees with our statement (Wing and Richardson 2002) that there is discrepancy between childhood cancer risk estimates from in ut...
Workers at U.S. facilities that use radioactive materials are subjected to a small occupational health risk. The Nuclear Regulatory Commission sets standards to ensure their safety. The agency limits worker doses to no more than five rem (5,000 millirems) per year and requires that occupational doses be kept “as low as reasonably achievable.” Radiation workers are individually monitored to reco...
Politico-Economic Causes of Labor Regulation in the United States: Rent Seeking, Alliances, Raising Rivals’ Costs (Even Lowering One’s Own?), and Interjurisdictional Competition This paper offers an eclectic survey of the political economy of labor regulation in the United States at federal and state levels along the dimensions of occupational health and safety, unjust dismissal, right-to-work,...
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