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A method for the calculation of annual limits on intake

  • D. Noßke
Published/Copyright: March 15, 2022
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Abstract

The German Radiation Protection Ordinance issued in 1989 – as well as ICRP Publication 30 – included tables of annual limits on intake (ALIs). These are secondary limits derived to indicate those intake values which are not allowed to be exceeded within a year to meet the primary annual dose limits. The latest ICRP Publications dealing with doses for workers give no ALIs any more and also the IAEA Basic Safety Standards and the Council Directive of the European Commission do not list such values. And also the new Radiation Protection Ordinance as well as the federal gazette with dose coefficients do not include such values any more. However, it may be that they will be included as guiding levels in the calculation principles for the assessment of internal doses. This paper will give reasons why there are no ALIs given any more, it will show how ALIs could be calculated, it will show the influence of additional dose restrictions for female workers of child-bearing age, and it will discuss if radiation protection for the unborn child would be fulfilled if the dose limits of the radiation protection ordinance are met.

Abstract

Die deutsche Strahlenschutzverordnung von 1989 beinhaltet – ebenso wie ICRP Publikation 30 – Tabellen mit Grenzwerten der Jahresaktivitätszufuhr (GJAZ). Diese sind sekundäre Grenzwerte, die abgeleitet wurden, um Zufuhrwerte zu benennen, die innerhalb eines Jahres nicht überschritten werden dürfen, um die primären Jahresdosis-Grenzwerte einzuhalten. Die neuesten ICRP Publikationen, die sich mit Dosiswerten für beruflich Strahlenexponierte beschäftigen, und die EU Grundnormen fuhren solche Werte nicht mehr auf. Und auch die neue Strahlenschutzverordnung von 2001 und der Bundesanzeiger mit Dosiskoeffizienten beinhaltet nicht mehr solche Werte. Es ist allerdings möglich, dass sie in der neuen Berechnungsgrundlage zur Ermittlung der Körperdosis bei innerer Strahlenexposition als Hilfsgrößen aufgeführt sein werden. Diese Arbeit begründet, warum GJAZ-Werte kaum noch benutzt werden, und sie beschreibt, wie solche GJAZ-Werte berechnet werden können. Sie zeigt den Einfluss zusätzlicher Dosisbeschränkungen für beruflich strahlenexponierte Frauen im gebärfähigen Alter auf und diskutiert, inwieweit der Strahlenschutz für das Ungeborene gewährleistet ist, wenn die Grenzwerte der Strahlenschutzverordnung eingehalten sind.

References

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Received: 2001-12-17
Published Online: 2022-03-15

© 2002 Carl Hanser Verlag, München

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