PROBLEM TO BE SOLVED: To provide a radiation measurement system enabling a tilling controlled variable to be adjusted according to the radiation dose on a field surface before and after tilling the field in a working machine that tills a field.SOLUTION: A radiation measurement system for a working machine that tills a field by a tilling part 36 connected behind a vehicle body 2 equipped with a motor 21 includes: a first radiation dosimeter measuring part 42 that measures the radiation dose on the field surface located forward of the tilling part 36 a second radiation dosimeter measuring part 44 that measures the radiation dose on the field surface located behind the tilling part 36 and a comparison result output part 71 that outputs the comparison result based on the comparison result of the first measurement value of the first radiation dosimeter measuring part 42 and a second measurement value of the second radiation dosimeter measuring part 44.COPYRIGHT: (C)2014,JPO&INPIT【課題】圃場の耕耘を行う作業機において圃場を耕す前後の圃場表面の放射線量に応じて耕耘制御量を調整することを可能とする放射線計測システムを提供する。【解決手段】放射線計測システムは、原動機21を搭載する車両本体2の後方に連結される耕耘部36により圃場の耕耘を行う作業機用放射線計測システムであって、耕耘部36の前方に位置する圃場表面の放射線量を計測する第1放射線量計測部42と、耕耘部36の後方に位置する圃場表面の放射線量を計測する第2放射線量計測部44と、第1放射線量計測部42の第1計測値と、第2放射線量計測部44の第2計測値の比較結果に基づいて、比較結果を出力する比較結果出力部71とを備える。【選択図】図7
