digitalGSM car telephone, circularly polarized antenna
Abstand zw. exponiertem Objekt und Expositionsquelle
The main room of the air conditioned exposure chamber was subdivided into four compartments open at one side. The inside of the exposure chamber and the compartments were shielded against RF EMF.
Each compartment was equipped with a wooden reclining seat and a circularly polarised antenna, individually positioned 10 cm behind the head of the upright sitting test person.
In double blind trials, each test person attended a total of 20 randomised 4-hour sessions of exposure and sham exposure, equally distributed at day and night, being at least 2 days apart after a day session and at least 3 days apart after a night session.
Microwave detectors installed in the control room monitored the functioning of the exposure equipment. The power-flux density applied was checked using an E-field probe. The SAR measurements were made in a liquid-filled shell-phantom of a human head.
Geronikolou SA et al.
Frequent cellular phone use modifies hypothalamic-pituitary-adrenal axis response to a cellular phone call after mental stress in healthy children and adolescents: A pilot study.