The dose referred to is almost always the effective dose.

Patients experiencing chronic digestive problems may lower their dose to the minimum effective range and by taking betahistine with meals.

Absorbed dose, equivalent dose and effective dose all apply to individuals or to average individuals.

Annual collective effective dose a

1.1.2.2.5 In the French version, replace dose effective with dose efficace .

Collective effective dose (million man Sv)

Annual average effective dose per monitored worker

Collective effective dose committed per unit energy generated

At low doses with any dose rate and at high doses with low dose rate, only the term proportional to dose is effective.

The unit of effective dose commitment is the sievert.

Patient doses are expressed in terms of effective dose.

The Committee has used a quantity analogous to effective dose, but ignoring the dose to the target tissue.

All these features are included in the selection of the weighting factors for converting equivalent dose into effective dose.

To allow for this, a further quantity, the effective dose, is used.

The unit of collective effective dose is the man sievert (man Sv).

The radiation dose from a nuclear medicine investigation is expressed as an effective dose with units of sieverts (usually given in millisieverts, mSv).

The resulting collective effective dose was not more than about 40 man Sv.

When the relationship is clearly non linear, the quantities can be specified at a stated dose, usually at an effective dose of 1 Sv.

The average effective dose for this group of 1,150 people was about 500 mSv.

It is not possible to make direct measurements of the effective dose to workers.

And I'm very happy to report that we're now using a dose of radiation that is equivalent to the effective dose from one digital mammogram.

However, to ensure a clear distinction between the absorbed dose and its weighted analogues, it has been agreed that the unit of equivalent dose and of effective dose should have the special name sievert (Sv).

The Certain Safety Factor is the ratio of the lethal dose to 1 of population to the effective dose to 99 of the population (LD1 ED99).

World wide, the annual effective dose per caput from diagnostic nuclear medicine is 0.03 mSv.

For most practical purposes, this quantity may be considered the same as the effective dose.

In one accident, at Palomares, Spain, the highest committed effective dose was about 200 mSv.

The Committee also uses the collective effective dose, which is the average dose to an exposed population or group multiplied by the number of people in the group.

Even if the total collective dose is taken to be 105 man Sv, it is a small fraction of the collective effective dose committed by the test programmes.

The total collective effective dose in Europe, including the United Kingdom, was about 2,000 man Sv.

The annual effective dose per caput is still only about 10 per cent of that attributable to the diagnostic use of X rays. For countries of level I, the annual effective dose per caput is about 0.09 mSv.

The local and regional collective effective dose from the whole test series was about 700 man Sv.

The collective effective dose committed by the accident is estimated to have been about 600,000 man Sv.

If the probability of late effects is proportional to effective dose at low doses, which is probably the case, the collective effective dose is an indicator of the total attributable harm to be expected in that group and its descendants.

The equivalent dose in each tissue or organ is multiplied by a tissue weighting factor, and the sum of these products over the whole body is called the effective dose.

The typical annual effective dose of 2.4 mSv from natural sources results in an annual collective dose to the world population of 5.3 billion people of about 13 million man Sv.

The effective inclusion of family planning in the minimum package of health services

Since both the radiation weighting factor and the tissue weighting factor are dimensionless quantities, the dimensions of the equivalent dose and the effective dose are the same as the dimensions of the absorbed dose, and the unit is the same, the joule per kilogram.

Tissue failures are therefore dependent on both dose and dose rate.

What's the dose?

The annual effective dose to aircrew is typically between 2 and 3 mSv, with higher values in some supersonic aircraft.

Source The Daily Dose.

Per dose per patient.

Give me a dose

In the UNSCEAR 1988 report, the Committee derived risk coefficients (risk per unit dose) for high dose and high dose rate situations for various tissues.

Both figures are of the same order of magnitude as the effective dose from a single year of exposure to natural sources.