|発明の名称||SEMICONDUCTOR RADIATION METER|
PROBLEM TO BE SOLVED: To provide a high-performance and relatively-inexpensive simplified semiconductor radiation meter that can be continuously used for a long time even with a battery such as a dry battery.
SOLUTION: A semiconductor radiation meter provided with an arithmetic processing unit includes: a radiation sensor; amplifiers; a pulse height discriminator; a first counter that counts output pulse signals from the pulse height discriminator, and performs desired processing on a counted value of the first counter. The arithmetic processing unit further includes a second counter, and a discrimination level adjustment variable resistance, whose resistance value is set to a second discrimination level that is higher than a first discrimination level of the pulse height discriminator, is connected between the second counter and the amplifiers. γ-rays are detected by a logical operation relation between a first counter output and a second counter output.
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