The facility housed nine RTLs (radial transmission lines) mounted on two separate adjacent sliding shelves. The facility and RTLs were shielded to avoid interference. Each RTL was formed by two parallel horizontal metal plates 4.3 cm apart, with a lightweight composite top plate hinged to the bottom aluminium plate (0.6 cm thick) providing mechanical support and homogeneity of the flasks' temperatures. The waves travelling from the central conical antenna were terminated by an annulus of MW-absorbing foam backed by perforated aluminium. The total radius was 53.3 cm.
Each RTL was fully loaded with 16 T-75 culture flasks at a radius of 29.2 cm each containing 40 ml of liquid medium (about 5 mm depth) (two of them diluted blood). The distance of the cells settled at the bottom of the flask from the antenna was between 24.7 cm and 33.8 cm.
The SARs of flasks were measured by the temperature rise method using both a thermographic and a thermometric method. The experimental results were in reasonable agreement with those obtained from a three-dimensional FDTD numerical model analysis.
Moros EG et al.
The radial transmission line as a broad-band shielded exposure system for microwave irradiation of large numbers of culture flasks.
Maes A et al.
Cytogenetic investigation of subjects professionally exposed to radiofrequency radiation.
Scarfi MR et al.
Exposure to radiofrequency radiation (900 MHz, GSM signal) does not affect micronucleus frequency and cell proliferation in human peripheral blood lymphocytes: an interlaboratory study.
Vijayalaxmi et al.
Chromosome damage and micronucleus formation in human blood lymphocytes exposed in vitro to radiofrequency radiation at a cellular telephone frequency (847.74 MHz, CDMA).