UNIVERSAL RADIATION PROTECTION SYSTEM (URPS); A NATURAL GLOBAL STANDARDISED TREND FOR HUMAN EXPOSURE CONTROL IN 21st CENTURY

2019 ◽  
Vol 184 (3-4) ◽  
pp. 277-284 ◽  
Author(s):  
M Sohrabi
Keyword(s):  
Radiation Protection ◽  
21St Century ◽  
Human Exposure ◽  
Risk Estimation ◽  
Health Effect ◽  
Protection System ◽  
Radiological Protection ◽  
Exposure Control ◽  
Dose Limit ◽  
The Many

Abstract In order to address the many deficiencies with current radiological protection system worldwide, this paper proposes a new Universal Radiation Protection System (URPS) Hypothesis with novel philosophy, concepts and methodologies of applying principles of equal human health-effect risks of an individual per unit radiation dose either from environmental natural background (NBG) or man-made sources; a ‘standardised integrated dose system’ for integrating all individual doses with emphasis on national NBG doses; considering worker as a member of public; and a ‘cause–effect conservation principle’ for epidemiology risk estimation. The URPS also a radiation hypothesises fractionation weighting factors (WF); a ‘URPS Model’ for bridging ‘linear no-threshold and hormesis models’; example dose limit for workers; as well as new terms and definitions. State-of-the-art developments on URPS hypothesis are presented and discussed with simple global natural trends for standardised human exposure control in order to protect workers, patients, public and environment by standardised methods independent of source and country of origin in the 21st century.

Reference levels in the context of Fukushima - lessons learned and a challenge for the radiation protection system

2012 ◽  
Vol 41 (3-4) ◽  
pp. 282-285 ◽  
Author(s):  
K. Sakai
Keyword(s):  
Radiation Protection ◽  
School Children ◽  
General Public ◽  
Radiation Effects ◽  
Scientific Information ◽  
Lessons Learned ◽  
Protection System ◽  
Reference Level ◽  
Radiological Protection ◽  
Plain Language

A number of dose criteria were set after the accident in Fukushima, including a criterion regarding the use of school playgrounds in Fukushima. Considering the band of 1–20 mSv/year recommended by the International Commission on Radiological Protection (ICRP) for public exposure under existing exposure situations, Japanese authorities set 20 mSv/year as a ‘start line’ for reducing the dose to school children. However, this led to considerable confusion among the general public and some experts. They thought that the dose limit was increased to 20 mSv/year (20 times as high as before), and that school children could be exposed to 20 mSv in 1 year. This is just an example of confusion caused by inadequate comprehension of radiation effects, misunderstanding of radiation protection concepts, or both. Another issue was raised regarding the higher radiosensitivity of children compared with adults. In the 2007 ICRP Recommendations, a higher risk coefficient is given to the whole population than the adult population, because the whole population includes children; a subpopulation with higher radiosensitivity and a longer life span. The point of argument was whether a lower reference level should be set for children alone. Radiation protection experts should continue to collect scientific information to improve the radiation protection system. In addition, it is the role of these experts to explain the framework of radiation protection to the general public in plain language.

scholarly journals Commissioning of the synchrotron radiation protection system and beamlines frontends at NSLS-II

2016 ◽  
Author(s):  
S. Seletskiy ◽  
C. Amundsen ◽  
J. Choi ◽  
J. De Long ◽  
K. Ha ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
Radiation Protection ◽  
Protection System

MINIMIZING THE EXPOSURE TO THE EYE LENS OF RADIOLOGIC TECHNOLOGISTS ASSISTING PATIENTS DURING CHEST X RAYS: A PHANTOM STUDY

2021 ◽  
Vol 193 (1) ◽  
pp. 43-54
Author(s):  
Yasuda Mitsuyoshi ◽  
Funada Tomoya ◽  
Sato Hisaya ◽  
Kato Kyoichi
Keyword(s):  
Radiation Protection ◽  
Phantom Study ◽  
International Commission ◽  
Eye Lens ◽  
Radiological Protection ◽  
X Rays ◽  
Radiologic Technologists ◽  
Maximum Reduction ◽  
The Right

Abstract As chest x rays involve risks of patients falling, radiologic technologists (technologists) commonly assist patients, and as the assistance takes place near the patients, the eye lenses of the technologists are exposed to radiation. The recommendations of the International Commission on Radiological Protection suggest that the risk of developing cataracts due to lens exposure is high, and this makes it necessary to reduce and minimize the exposure. The present study investigated the positions of technologists assisting patients that will minimize exposure of the eye lens to radiation. The results showed that it is possible to reduce the exposure by assisting from the following positions: 50% at the sides rather than diagonally behind, 10% at the right side of the patient rather than the left and 40% at 250 mm away from the patient. The maximum reduction with radiation protection glasses was 54% with 0.07 mmPb and 72% with 0.88 mmPb.

What’s Next for a National Infrastructure Policy: An Encore or a Requiem?

2021 ◽  
pp. 1087724X2110146
Author(s):  
Richard G. Little
Keyword(s):  
Economic Growth ◽  
Public Policy ◽  
21St Century ◽  
Environmental Sustainability ◽  
Infrastructure Systems ◽  
Infrastructure Policy ◽  
Policy Objectives ◽  
The Many ◽  
National Infrastructure ◽  
Roll Out

In an essay almost 30 years ago, Professor Dick Netzer of NYU asked the question “Do We Really Need a National Infrastructure Policy?” and came to the conclusion that we did not. As the Biden Administration prepares to roll out a multi-trillion dollar infrastructure package, the nation is faced with numerous questions regarding the infrastructure systems necessary to support continued economic growth and environmental sustainability. The purpose of this essay is to look to recent history for guidance for how to proceed by revisiting the underlying premises of the Netzer essay and reconsider whether a National Infrastructure Policy is needed. Because linking infrastructure to broader public policy objectives could both unite the nation and position it to address the many challenges that the 21st century will present, I believe the idea of a National Infrastructure Policy definitely deserves a second look.

scholarly journals Issues Behind Radiation Protection of the Ocular Lens Based on New Dose Limit

2013 ◽  
Vol 48 (2) ◽  
pp. 86-96 ◽  
Author(s):  
Yuki FUJIMICHI ◽  
Toshiso KOSAKO ◽  
Kazuo YOSHIDA ◽  
Nobuyuki HAMADA
Keyword(s):  
Radiation Protection ◽  
Ocular Lens ◽  
Dose Limit

scholarly journals Ensuring Sustainable Urban Transformation in Indonesia

2020 ◽  
Vol 1 (2) ◽  
pp. 217-224
Author(s):  
B. Setiawan ◽  
Tri Mulyani Sunarharum
Keyword(s):  
Developing Countries ◽  
21St Century ◽  
Urban Areas ◽  
Urban Population ◽  
Third World ◽  
Developed Countries ◽  
Urban Transformation ◽  
The Third ◽  
The Many ◽  
The Third World

Of the many important events that occurred in the two decades of the 21st century, the process of accelerating urbanization—especially in third-world countries—became something quite phenomenal. It's never even happened before. In the early 2000s, only about 45 percent of the population in the third world lived in urban areas, by 2020 the number had reached about 55 percent. Between now and 2035 the percentage of the population living in urban areas will reach about 85 percent in developed countries. Meanwhile, in developing countries will reach about 65 percent. By 2035, it is also projected that about 80 percent of the world's urban population will live in developing countries' cities.

scholarly journals Radiation protection tasks on the Kiev research reactor WWR-M

2009 ◽  
Vol 24 (2) ◽  
pp. 145-151 ◽  
Author(s):  
Yuri Lobach ◽  
Valery Shevel
Keyword(s):  
Radiation Protection ◽  
Research Reactor ◽  
Radiation Safety ◽  
Radiation Monitoring ◽  
Statistical Information ◽  
Protection System ◽  
Radioactive Aerosol ◽  
Operational Experience ◽  
External Radiation ◽  
Radiation Hazards

Both the description of and the operational experience with the radiation protection system at the research reactor WWR-M are presented. The list of the factors regarding the radiation hazards during the reactor routine operation is given and the main activities on the radiation safety provision are established. The statistical information for the staff exposure, the radioactive aerosol releases and the external radiation monitoring is shown. The preliminary considerations on the system upgrading for the decommissioning are presented.

scholarly journals A critical look at UNEP reports concerning depleted uranium on Yugoslav territory

2005 ◽  
Vol 20 (1) ◽  
pp. 86-90
Author(s):  
Marko Ninkovic ◽  
Ruzica Glisic
Keyword(s):  
Radiation Protection ◽  
Dose Level ◽  
Depleted Uranium ◽  
Reference Level ◽  
External Exposure ◽  
Dose Limit ◽  
Annual Dose ◽  
Uranium Contamination ◽  
The Public ◽  
Scientific Mission

A critical look at UNEP Reports concerning depleted uranium on Yugoslav territory is presented in this paper. The subjects of the analysis are summarized as remarks high-lighting the following three points: (a) those concerning the use of terms significant and insignificant doses (risks), (b) those concerning the use of 1 mSv as a border between these two risk types and (c) those concerning the composition of ex pert UNEP Teams investigating the depleted uranium issue. To start with, the assumption that it should be possible to express the risks (con sequences) caused by the in take of depleted uranium ( by ingestion/ inhalation and/ or external exposure) to b and g rays from depleted uranium as insignificant or significant for comparison purposes is, in our view, in collision with the linear non thresh old hypothesis, still valid in the radiation protection field. Secondly, the limit of 1 mSv per year as a reference dose level between insignificant and significant risks (con sequences) is not accept able in the case of military depleted uranium contamination. This is because the reference level of 1 mSv, according to the ICRP Recommendation, can be used in the optimization of radiation protection as an additional annual dose limit for members of the public solely for useful practices. Military usage of depleted uranium can not be classified as being useful for both sides - the culprit and the victim alike. Our third objection concerns the composition of ex pert UNEP teams for Kosovo (Desk Assessment Group, Scientific Reviewer Group, and UNEP Scientific Mission) as not being representative enough, bearing in mind all UN member-countries. This last objection may be rather difficult to understand for any one viewing it from the perspective other than that of the victims.

scholarly journals Evolution of radon dose evaluation

2004 ◽  
Vol 19 (1) ◽  
pp. 3-11
Author(s):  
Kenzo Fujimoto
Keyword(s):  
United Nations ◽  
Risk Estimation ◽  
Weighting Factor ◽  
Historical Change ◽  
Radiological Protection ◽  
Effective Dose Equivalent ◽  
Dose Equivalent ◽  
United Nations Scientific Committee ◽  
Natural Radiation ◽  
Dose Evaluation

The historical change of radon dose evaluation is reviewed based on the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) reports. Since 1955, radon has been recognized as one of the important sources of exposure of the general public. However, it was not really understood that radon is the largest dose contributor until 1977 when a new concept of effective dose equivalent was introduced by International Commission on Radiological Protection. In 1982, the dose concept was also adapted by UNSCEAR and evaluated per caput dose from natural radiation. Many researches have been carried out since then. However, lots of questions have remained open in radon problems, such as the radiation weighting factor of 20 for alpha rays and the large discrepancy of risk estimation among dosimetric and epidemiological approaches.

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