They are loaded into a liquid scintillation counter.

Calibration occurred according to the external standard ratio procedure of the liquid scintillation counter.

A basic piece of equipment used in training many environmental students is a Liquid Scintillation Counter.

Liquid scintillation counters are an efficient and practical means of quantifying beta radiation.

A brief description of the Liquid Scintillation Counter proposal is here.

If the wipes are counted in a liquid scintillation counter, the printouts from the counter must be kept with the contamination monitoring records.

Like gas counters, liquid scintillation counters require shielding and anticoincidence counters.

The filters were then dried, immersed in scintillation fluid and counted in a liquid scintillation counter.

For both the gas proportional counter and liquid scintillation counter, what is measured is the number of beta particles detected in a given time period.

The cells were further incubated for 16 h, then harvested and 3H-TdR incorporation monitored by using a liquid scintillation counter.

Nuclear counting equipment (alpha and gamma spectrometers, beta counters, liquid scintillation counter, nuclear track-etch technique)

For samples to be used in liquid scintillation counters, the carbon must be in liquid form; the sample is typically converted to benzene.

Liquid scintillation counter with enhanced background suppression (active guard and alpha/beta separation) used to quantify environmental and higher levels of radon in air and water.

For 90Sr, these include selective coprecipitation and solvent extraction for Cerenkov counting on the liquid scintillation counter of its decay product, 90Y.

They can be measured by a variety of detectors, including liquid scintillation counters, gas ionization detectors, and ion-implanted silicon semiconductor detectors.

Non portable instruments for counting wipes, such as liquid scintillation counters, well-crystal type gamma counters, should be routinely serviced according to the manufacturer's instructions.

Nuclear medicine imaging equipment and liquid scintillation counters use photomultiplier tube arrays to detect low-intensity scintillation due to ionizing radiation.

Measurement of tritium, carbon-14, strontium-90 and other beta-emitters is done in the refrigerated liquid scintillation counter housed in this laboratory for intercomparisons and internal dose assessment.

Equipment ranging from simple column chromatography setups to sophisticated liquid scintillation counters sat atop the counter, alongside agar-filled petrie dishes and folded nitrocellulose filters.

Radioactivity retained on the filters was measured using Microscint 0 in a TopCount liquid scintillation counter (Packard Instruments).

The thymidine is incorporated into dividing cells and the level of this incorporation, measured using a liquid scintillation counter, is proportional to the amount of cell proliferation.

Prichard, H.M. and Gesell, T.F. Rapid measurement of 222Rn concentration in water with a commercial liquid scintillation counter.

Radioactivity was measured in a liquid scintillation counter (TRI-CARB 1900 TR, Packard).

Quench curves for different amounts of chlorophyll should be established and adding an internal standard, e.g. 14C -hexadecane or toluol, should check the measuring efficiency of the liquid scintillation counter.