NRPB National Radiological Protection

Wall BF, Hart D (1997) Revised radiation doses for typical X-ray examinations. Report on a recent review of doses to patients from medical X-ray examinations in the UK by NRPB. National Radiological Protection Board. Br J Radiol 70 437-439. 

But there is one isotope released in the accident that is highly mobUe, that does have a high take-up by the human body, has a half-hfe of 140 days, and — though this was only revealed this week by the NRPB [National Radiological Protection Board] after New Scientist s enquiries — was released in significant quantities. 

The mean radon concentrations determined by the passive detectors are based on calibrations using NBS standard radium-226 solutions and also from participation in the OECD (Nuclear Energy Agency)/CEC radon dosimeter intercomparisons (Commission of the European Communities, 1986) held at the U.K. National Radiological Protection Board (NRPB). Recent calibrations of the new LR-115 based detectors, in terms of response to radon concentrations and F factors have been carried out at the NRPB, which assistance is greatly appreciated. For the etching and track counting procedures used the inner LR-115 piece in the detectors has a mean sensitivity of approximately 1.6 tracks cm 2 kBq l m hr l. 

Riordon, A.C. James, G. Rae and A.D. Wrixon, Human Exposure to Radon Decay Products Inside Dwellings in the United Kingdom, National Radiological Protection Board, Chilton, Report NRPB-R152... 

Lloyd, D.C., J.S. Prosser, and R.J. Purrott, The Study of Chromsome Aberrations Yield in Human Lymphocytes as an Indicator of Radiation Dose Revised Techniques, NRPB-M70, National Radiological Protection Board, Chilton, Didcot, Oxon. 0X11 0RQ, Great Britain, (November 1982). 

Bulman, R.A. Concentration of Actinides in the Food Chain. National Radiological Protection Board NRPB-R44, HMSO 1976... 

Models to Allow for the Effects of Coastal Sites, Plume Rise, and Buildings on Dispersion of Radionuclides and Guidance on the Value of Deposition Velocity and Washout Coefficients, Fifth Report of a Working Group on Atmospheric Dispersion, National Radiological Protection Board, NRPB-R157, 1983. 

NRPB (1980). National Radiological Protection Board. An Evaluation of the Eastman Kodak Type 2 Film, NRPB-R103 (National Radiological Protection Board, Chilton, England). 

O Riordan, M.C., James, A.C., Green, B.M.R. Wrixon, A.D. (1987) Exposure to radon daughters in dwellings. Report NRPB-GS6, Chilton, Oxon, National Radiological Protection Board. 

Haywood, S.M. (1987) Revised generalized derived limits for radioisotopes of strontium, iodine, caesium, plutonium, americium and caesium. Report NRPB-GS8. National Radiological Protection Board, Chilton, Oxon. 

There are limits to what is permitted for each user and this is governed by the Health and Safety regulations. The same applies to people working with X-rays. A good set of free wall charts is available from the National Radiological Protection Board (NRPB)1 that summarizes all these processes. 

National Radiological Protection Board (NRPB) W41, Generalised Habit Data for Radiological Assessments, K R Smith and A L Jones, May 2003. 

Clarke, R.H. (1979) A model for short and medium range dispersion of radionuclides released to the atmosphere. National Radiological Protection Board report NRPB-R91. 

An atlas of the radon levels present in the British Isles has been compiled by the National Radiological Protection Board (NRPB) which clearly illustrates these variahons and the links to the underlying geology. 

National Radiological Protection Boradiation-induced cancer at low doses dose rates for radiation purposes. Documents of the NRPB, 6(1), 1995. 

GELDER, R., Radiation Exposure from the Normal Transport of Radioactive Materials within the United Kingdom, NRPB-M255, National Radiological Protection Board, Chilton, UK (1991). 

Jones, J. A. (1981). A procedure to include deposition in the model for short and medium range atmospheric dispersion of radionuclides. National Radiological Protection Board, Harwell Report NRPB-R122. 

Jones, J.A. (1983). Models to allow for the effects of coastal sites, plume rise and buildings on dispersion of radionuclides and guidance on the value of deposition velocity and washout coefficients. National Radiological Protection Board, Harwell Report NRPB-R157. 

The new information on radiation risks prompted the National Radiological Protection Board (NRPB) to recommend that occupational workers exposure should be so controlled as not to exceed an average effective dose equivalent of 15 mSv per year. This recommendation has been considered by the Working Group on Ionising Radiations of the HSC ° and it can be expected that, pending revisions to the ICRP basic recommendations and the European Directive, this recommendation will be taken into account in an addition to the Approved Code of Practice during 1990. 

National Radiological Protection Board, Interim Guidance on the Implications of Recent Revisions of Risk Estimates and the ICRP 1987 Como Statement, NRPB-GS9, Chilton (1987)... 

Low Levels of Radioactivity, NRPB R113, National Radiological Protection Board, HMSO, London, UK. 

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