Micro-Grain Prototype test conducted at Oak Ridge National Labs
Table 1. The effects of microwave radiation at 28GHz on 150 larvae of the red flour beetle in 5-gallon lots of wheat treated in a flow-through system at Oak Ridge National Labs., July 20 and 21, 2001.
Bucket No. Treatment Description # of Survivors
3 Control dropped through applicator with no microwaves 68
5 Control dropped through applicator with no microwaves 71
10 Control dropped through applicator with no microwaves 63
1 20 kW T1=26 T2=45 0
2 20 kW T1=26 T2=50 0
6 20 kW T1=26 T2=51 0
7 26 kW T1=25 T2=55 brief arcing at start 3
4 20 kW T1=26 T2=48 major arcing 46
8 26 kW T1=25 T2=38 major arcing 18
kW=power level of microwave energy
T1= temperature (°C) of grain before exposure
T2= temperature (°C) of grain after exposure
William Halverson, President of Micro-Grain, Inc., shares in some of the preliminary work needed to prepare grain samples for the applicator.

Also, a special thanks goes to Stan Forrester, assistant to Tim Bigelow, for his tireless effort under very warm and humid conditions.

For this stage of prototype testing, a timed gate is opened to release the grain sample into the applicator for exposure to microwave energy.

The exposed sample is collected in a drum under the applicator. In future tests, the grain flow will be continuous.