Study type: Medical/biological study (experimental study)

Repeated exposure of C3H/HeJ mice to ultra-wideband electromagnetic pulses: lack of effects on mammary tumors med./bio.

By: Jauchem JR, Ryan KL, Frei MR, Dusch SJ, Lehnert HM, Kovatch RM
Published in: Radiat Res 2001; 155 (2): 369-377
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Aim of study (acc. to author)

To investigate potential mammary tumor-promoting effects of repeated exposure to ultra-wideband pulses on mice.

Endpoint

Exposure

Exposure Parameters
Exposure 1: 100 MHz–51 GHz
Modulation type: pulsed
Exposure duration: 2 min/week for 12 weeks

Exposure 1

Main characteristics
Frequency 100 MHz–51 GHz
Charakteristic
  • guided field
Exposure duration 2 min/week for 12 weeks
Modulation
Modulation type pulsed
Pulse width 1.9 ns
Rise time 176 ps
Fall time 3.5 ns
Repetition frequency 1,000 Hz
Exposure setup
Exposure source
  • parallel-plate transmisssion line, 0.73 m wide, 0.30 m high, 1.22 m long
Chamber 19.51m x 19.51 m anechoic chamber
Sham exposure A sham exposure was conducted.
Parameters
Measurand Value Type Method Mass Remarks
electric field strength 400 V/cm peak value measured - -
SAR 9.8 µW/g unspecified estimated whole body -

Exposed system:

Methods Endpoint/measurement parameters/methodology

Investigated system:
Investigated organ system:
Time of investigation:
  • during exposure
  • after exposure

Main outcome of study (acc. to author)

The results revealed no significant effects of repeated exposure of C3H/HeJ mice to ultrawide-band pulses on incidence of palpated mammary tumors, latency to tumor onset, rate of tumor growth, or animal survival.

Study character:

Study funded by

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