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Unternavigationspunkte
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Mediathek
Unternavigationspunkte
Glossar
Deutschsprachiges Glossar
Wash bottle Einklappen / Ausklappen
Wash bottles are laboratory devices that are included in a gas flow (e.g. in the branch of an exhaust air flow from a mine). Through an immersion tube (similar to a straw dipped into a liquid) the gas is forced to run through a liquid contained in the bottle before it leaves the bottle again. Thus it is possible to examine the composition of gases: Gases soluble in the liquid and entrapped airborne particles (aerosols) remain in the liquid and can be determined subsequently.
WashoutEinklappen / Ausklappen
Aerosols washed out by rain.
Waste acceptance requirementsEinklappen / Ausklappen
Determined requirements on waste packages to be disposed of, taking into account site-specific conditions.
Waste containerEinklappen / Ausklappen
Containers such as drums, flasks, containers, drums, concrete casks or casting vessels, in which the waste products are stores. For the Konrad repository, drums have to be packed in containers.
Waste container classificationEinklappen / Ausklappen
Comprises waste containers with comparable release behaviour of radioactive materials.
Waste data sheetEinklappen / Ausklappen
Data sheet containing repository relevant data on waste packages.
Waste drumsEinklappen / Ausklappen
Collective term for drums containing waste.
waste formEinklappen / Ausklappen
Processed radioactive waste without packaging or unprocessed radioactive waste placed into a container.
Waste matrixEinklappen / Ausklappen
Hardened immobilisation material in which radioactive waste is immobilised.
Waste packageEinklappen / Ausklappen
Collective term for waste products and packaging.
Waste package quality controlEinklappen / Ausklappen
Proof that waste packages are in compliance with waste acceptance requirements.
Waste product groupEinklappen / Ausklappen
Waste products with comparable release behaviour of radioactive materials.
Waste typeEinklappen / Ausklappen
Type of primary radioactive waste accruing (such as combustible, solid materials, scrap, ion-exchange resins)
Waste waterEinklappen / Ausklappen
Water from the facility intended for discharge of which has been discharged.
WavelengthEinklappen / Ausklappen
The wavelength is the distance of neighbouring oscillation states of the same phase in the direction of propagation, e.g. between two wave crests following upon each other. Wavelength and frequency are connected to each other.
The measure of wavelength is metre (m):
1 millimeter (mm) = 1/1000 m
1 mikrometer (µm) = 1/1000 mm
1 nanometer (nm) = 1/1000 µm
Whole-body counterEinklappen / Ausklappen
Measuring instrument for the detection of the activity of radionuclides in the whole human body. Only radionuclides emitting gamma radiation can be measured. A whole-body counter mostly consists of
- a couch or a chair the person to be examined is lying or sitting on during the measurement,
- one or several detectors to measure the gamma radiation emanating the measured person's body during the measurement, and
- a suitable shielding of the measuring instrument against environmental radiation.
Older devices use sodium iodide detectors. Instead of these, highpure germanium detectors are used increasingly, the latter having a significantly higher energy resolution (the higher the energy resolution, the better the various measured radionuclides can be distinguished from each other).
Whole-body doseEinklappen / Ausklappen
Product of the mean absorbed dose of the whole body and the radiation weighting factor. If several types of radiation are involved the total whole-body dose is the sum of the respective components. The unit of the whole-body dose is J/kg with the special name Sievert (Sv).
Wipe testEinklappen / Ausklappen
The wipe test is carried out by a sample manipulator using a wipe test monitor. Wipes are used to measure the alpha and beta surface contamination.
Wismut studyEinklappen / Ausklappen
Worldwide largest uranium miner cohort study including almost 60.000 miners who were occupationally exposed to radon and worked in uranium ore mining in former East Germany.
Working faceEinklappen / Ausklappen
1. Target surface for production.
2. The lateral boundary surface of a mine opening.
Working Level Month (WLM) Einklappen / Ausklappen
The unit Working Level Month (WLM) is frequently used in the risk assessment of occupational radon exposure instead of a calculated dose in Millisievert. The advantage is, that the concentration can be measured directly. No further assumptions for the dose distribution in the body are necessary. To calculate the cumulative exposure to radon in WLM, the measured alpha energy concentration (unit: Working Level (WL)) in one litre air is multiplied by the time the miner has worked in this surrounding. 1 WLM equals an exposure of 1 WL (1.3 * 105 Megaelectron-volt (MeV) potential alpha energy per litre air) over 170 working hours (monthly working time), or a half WL over 2 months (340 working hours), respectively.
Working placeEinklappen / Ausklappen
Working place in underground operation where mining works are carried out, such as heading, mining, tipple, etc.
work-overEinklappen / Ausklappen
Rehabilitation of existing but collapsed or stowed mine openings.
Worst-case scenarios Einklappen / Ausklappen
The worst case, corresponds to the concurrence of the most unfavourable conditions occurring in reality.