Abstract:
:On 20 September 1999, a urine sample submitted by a University of Rochester radiation worker was noted to have a count rate of about 759,500 disintegrations per minute (dpm) per milliliter as analyzed on the Radiation Safety Unit (RSU) Packard liquid sintillation counter. The sample was recounted that day with variable results but each time indicating several hundred thousand dpm of activity present. Calculations indicated this corresponded to a whole-body uptake of about 518 MBq (14 nmCi) and a whole-body dose of about 10 msv (1 rem). An investigation indicated it was unlikely for these analytical results to indicate an actual uptake of tritium and suggested the results were most likely due to chemical luminescence in the sample. Accordingly, no dose was assigned to this worker from the exposure.
journal_name
Health Physjournal_title
Health physicsauthors
Karam PAdoi
10.1097/00004032-200005001-00006keywords:
subject
Has Abstractpub_date
2000-05-01 00:00:00pages
S59-61issue
5 Suppleissn
0017-9078issn
1538-5159journal_volume
78pub_type
杂志文章相关文献
HEALTH PHYSICS文献大全abstract::The longterm behavior of 137Cs in milk of a Bavarian farm (farm A) deposited as a consequence of the Chernobyl accident has been followed from April 1986 until August 1994. On the basis of activity measurements in milk and feed, transfer coefficients for the different seasons have been estimated in order to see any ch...
journal_title:Health physics
pub_type: 杂志文章
doi:10.1097/00004032-199609000-00015
更新日期:1996-09-01 00:00:00
abstract::Thyroids from mule deer (Odocoileus hemionus) were collected in New Mexico, Colorado, Wyoming and Idaho and 129I/127I atom ratios were determined. Iodine-129/127 atom ratios were significantly (P less than 0.005) different among states. Ratios in Wyoming and Idaho control thyroids were significantly (P less than 0.05)...
journal_title:Health physics
pub_type: 杂志文章
doi:10.1097/00004032-198307000-00004
更新日期:1983-07-01 00:00:00
abstract::As part of the UK Ministry of Agriculture Fisheries and Food Directorate of Fisheries Research (MAFF/DFR) post-Chernobyl monitoring program, a detailed study was carried out of the change over time in dissolved-phase 137Cs concentrations in a number of lakes in Cumbria, UK. These measurements have been combined with p...
journal_title:Health physics
pub_type: 杂志文章
doi:10.1097/00004032-199706000-00007
更新日期:1997-06-01 00:00:00
abstract::The analysis of uranium in water samples can be very helpful for providing guidelines to the general public regarding necessary remedial measures. A fission-track technique has been applied for the estimation of the uranium concentration in drinking water collected from natural springs of Muzaffarabad and hilly areas ...
journal_title:Health physics
pub_type: 杂志文章
doi:10.1097/00004032-200403000-00006
更新日期:2004-03-01 00:00:00
abstract::The terrestrial gamma radiation level was determined throughout the Sultanate of Oman over a 3-y period. The dose rate at 1 m above the ground was measured at 512 locations using a compensated Geiger-Miller detector. The activity concentration of soil/rock samples, collected from 112 locations, was determined by gamma...
journal_title:Health physics
pub_type: 杂志文章
doi:10.1097/00004032-200206000-00016
更新日期:2002-06-01 00:00:00
abstract::The objective of the present study was to assess the lung cancer risk induced by exposures to radon progeny of people living in some areas of Transylvania, Romania. Indoor radon concentrations were measured in 667 dwellings of Stei area, Cluj, Bistrita-Nasaud, Sibiu, and Alba counties. Measurements were performed usin...
journal_title:Health physics
pub_type: 杂志文章
doi:10.1097/HP.0b013e3181c03cde
更新日期:2010-09-01 00:00:00
abstract::Residential exposure to radon gas is associated with increased risk of lung cancer, especially in smokers. Most evidence about the health effects of radon has been derived from meta-analyses on global epidemiologic studies, but administrative data can help public health authorities to explore the local impacts. Eighty...
journal_title:Health physics
pub_type: 杂志文章
doi:10.1097/HP.0000000000000005
更新日期:2014-05-01 00:00:00
abstract::The uranium industry in the American Southwest has had profoundly negative impacts on American Indian communities. Navajo workers experienced significant health problems, including lung cancer and nonmalignant respiratory diseases, and psychosocial problems, such as depression and anxiety. There were four uranium proc...
journal_title:Health physics
pub_type: 杂志文章
doi:10.1097/HP.0b013e3182243a7a
更新日期:2011-11-01 00:00:00
abstract::The Medical University of South Carolina is currently participating in clinical trials of 131I radiolabeled Anti-B1 antibody for treatment of Non-Hodgkin's lymphoma. Under current South Carolina Department of Health and Environmental Control regulatory guidelines,; these patients are required to be admitted to the hos...
journal_title:Health physics
pub_type: 杂志文章
doi:10.1097/00004032-200011001-00004
更新日期:2000-11-01 00:00:00
abstract::When measuring radioactivity, the problem rises of deciding whether or not a sample contains radioactivity in excess of background and above which value the result is meaningful. This decision process is why the notion of decision level was introduced. Whereas there is unanimity about its definition, this is not the c...
journal_title:Health physics
pub_type: 杂志文章,评审
doi:10.1097/00004032-200308000-00002
更新日期:2003-08-01 00:00:00
abstract::The vertical distribution of weapons testing fallout 237Np has been determined in an undisturbed grassland soil (Alfisol). By using a compartmental model for multi-layered soils, the mean residence half-times of 237Np in each soil layer were calculated and compared with results on weapons fallout 239 + 240Pu, 241Am an...
journal_title:Health physics
pub_type: 杂志文章
doi:10.1097/00004032-199501000-00011
更新日期:1995-01-01 00:00:00
abstract::In situ recovery or in situ leach (ISR/ISL) uranium facilities, also referred to in the past as "uranium solution mining" have operated since the late 1960s in the US and in recent years have accounted for over 70% of US production and, internationally, approximately half of worldwide uranium supplies. Note that throu...
journal_title:Health physics
pub_type: 杂志文章
doi:10.1097/HP.0000000000001062
更新日期:2019-07-01 00:00:00
abstract::Flows in lung bifurcations are complicated by geometry, and it is recognized that accurate lung dosimetric models require realistic calculations of the flow and particle deposition patterns. A computational fluid dynamics study of flow and particle concentration has been carried out for a lung bifurcation based on the...
journal_title:Health physics
pub_type: 杂志文章
doi:10.1097/00004032-199301000-00002
更新日期:1993-01-01 00:00:00
abstract::The factors affecting indoor radon properties in Hong Kong have been studied, including the radon concentration, the total potential alpha energy concentration of radon progeny, the equilibrium factor, and the fraction of unattached radon progeny. These factors fall into three categories, namely, (1) the building char...
journal_title:Health physics
pub_type: 杂志文章
doi:10.1097/00004032-199608000-00008
更新日期:1996-08-01 00:00:00
abstract::Following the attacks of 11 September 2001, emergency preparedness within the U.S. Department of Health and Human Services, as well as at the Department of Defense and other federal agencies, received higher visibility, new mandates and increased funding. Emergency deployment teams increased the frequency of drills to...
journal_title:Health physics
pub_type: 杂志文章
doi:10.1097/HP.0b013e3182135fba
更新日期:2011-09-01 00:00:00
abstract::This study estimated the radiation exposure attributed to nuclear medicine examinations during the period of 1985 through 1992 in Slovak Republic. It was accomplished by survey of nuclear medicine facilities from 1987 to 1992. In addition, a detailed analysis of nuclear medicine practice was obtained for 1992. The mea...
journal_title:Health physics
pub_type: 杂志文章
doi:10.1097/00004032-199507000-00003
更新日期:1995-07-01 00:00:00
abstract::Electric (E) and magnetic field (B) strengths or flux densities were measured at distances of 30 and 50 cm from the screen of video displays at a frequency range from 30 Hz to 1 MHz. The measurement system consisted of an optically coupled active dipole for E-fields, a magnetic field meter, a digital oscilloscope, a p...
journal_title:Health physics
pub_type: 杂志文章
doi:10.1097/00004032-198907000-00010
更新日期:1989-07-01 00:00:00
abstract::The use of x-ray generators for diagnostic radiology in the medical sector in Cameroon, Central Africa, is wide spread and on the increase in recent times. Regulatory control of x-ray machines used in medical sector has been achieved in the Littoral Region of Cameroon by means of notification and authorization systems...
journal_title:Health physics
pub_type: 杂志文章
doi:10.1097/HP.0000000000000713
更新日期:2017-11-01 00:00:00
abstract::Thoron (Rn) exhalation from building materials has become increasingly recognized as a potential source for radiation exposure in dwellings. However, few studies have focused on mitigation strategies to reduce exposure from thoron and its progeny. Therefore, the purpose of this study is to (1) determine the reduction ...
journal_title:Health physics
pub_type: 杂志文章
doi:10.1097/HP.0000000000000566
更新日期:2016-11-01 00:00:00
abstract::The (241)Am contents in the United States Transuranium and Uranium Registries' (USTUR) case 0102 leg phantom were previously estimated to be 1,243 ± 11 Bq. Recent analysis of the computed tomography images of the phantom revealed multiple bone structures missing from various regions of the phantom skeleton including: ...
journal_title:Health physics
pub_type: 杂志文章
doi:10.1097/hp.0b013e318269bf81
更新日期:2013-01-01 00:00:00
abstract::The National Ignition Facility (NIF) at the Lawrence Livermore National Laboratory (LLNL) in California is currently in operation with the goal to demonstrate fusion energy gain for the first time in the laboratory-also referred to as "ignition." Based on these demonstration experiments, the Laser Inertial Fusion Ener...
journal_title:Health physics
pub_type: 杂志文章
doi:10.1097/HP.0b013e31828d2fab
更新日期:2013-06-01 00:00:00
abstract::Studies of the physical and chemical properties of radioactive aerosols produced in different work environments were made at Chin-Shan nuclear power plant in Taiwan. These properties, including particle mass- and activity-size distributions, elemental and radionuclide compositions, and solubility lung class, are essen...
journal_title:Health physics
pub_type: 杂志文章
doi:10.1097/00004032-199308000-00003
更新日期:1993-08-01 00:00:00
abstract::A simple passive sampler for 222Rn with up to 24-hr integration times can be constructed by using a diffusion barrier to regulate the effective sampling rate of an ambient temperature activated carbon bed. The diffusion element serves to make sampler performance relatively independent of the properties of the type of ...
journal_title:Health physics
pub_type: 杂志文章
doi:10.1097/00004032-198506000-00007
更新日期:1985-06-01 00:00:00
abstract::While it is implicitly recognized that the benefits of diagnostic imaging far outweigh any theoretical radiogenic risks, quantitative estimates of the benefits are rarely, if ever, juxtaposed with quantitative estimates of risk. This alone - expression of benefit in purely qualitative terms versus expression of risk i...
journal_title:Health physics
pub_type: 杂志文章
doi:10.1097/HP.0000000000000416
更新日期:2016-03-01 00:00:00
abstract::In the process of decommissioning a tritium-handling laboratory, direct-immersion and water-extraction methods for measuring tritium contamination in concrete were compared to a heating-cooling method. For this evaluation, concrete pieces chipped from contaminated concrete walls and floors were used. The direct-immers...
journal_title:Health physics
pub_type: 杂志文章
doi:10.1097/01.HP.0000261159.98536.85
更新日期:2007-08-01 00:00:00
abstract::Monte Carlo simulation techniques using a Monte Carlo N-Particle code (MCNP5) analyzed six Source Production & Equipment Co., Inc., Se industrial radiography sources to determine an appropriate air kerma rate constant for Se, factoring in source encapsulation and compared to a theoretical approximation. Based on this ...
journal_title:Health physics
pub_type: 杂志文章
doi:10.1097/HP.0b013e318284592c
更新日期:2013-05-01 00:00:00
abstract::The objective of the study is to characterize the risk of tumors from radiation exposure to the head and neck. A cohort of 2,224 children given x-ray treatment and 1,380 given only topical medications for ringworm of the scalp (tinea capitis) during 1940-1959 have been followed up for a median of 39 y to determine tum...
journal_title:Health physics
pub_type: 杂志文章
doi:10.1097/00004032-200310000-00003
更新日期:2003-10-01 00:00:00
abstract::The purpose of this study is to support retrospective dose estimation for epidemiological studies by providing estimates of historical absorbed organ doses to the brain, lens of the eye, salivary glands, and thyroid from intraoral dental radiographic examinations performed from 1940 to 2009. We simulated organ doses t...
journal_title:Health physics
pub_type: 杂志文章
doi:10.1097/HP.0000000000001138
更新日期:2020-02-01 00:00:00
abstract::Real-time data measurement and analysis have identified a number of influences affecting the variability and accumulation of radon and its progeny in indoor air. Observed cycles in radon concentrations were shown to be related to the influence of air-conditioning and water-heated central heating systems. The cyclical ...
journal_title:Health physics
pub_type: 杂志文章
doi:10.1097/00004032-199911000-00010
更新日期:1999-11-01 00:00:00
abstract::This paper describes two nondestructive measurement techniques for determining the radioactivity in a homogeneous organ phantom with an acceptable error and the capability of being traceable to the National Institute of Standards and Technology. These two techniques are based on a method developed by Robley D. Evans i...
journal_title:Health physics
pub_type: 杂志文章
doi:10.1097/00004032-199303000-00010
更新日期:1993-03-01 00:00:00