Measurement of natural background radiation intensity on a train.
This work aims to measure different components of natural background radiation on a train. A radiation measurement system consisting of four types of radiation detectors, namely, a Berkeley Lab cosmic-ray detector, moderated (3)He detector, high-pressure ionisation chamber and NaI(Tl) spectrometer, associated with a global positioning system unit was established for this purpose. For the commissioning of the system, a test measurement on a train along the railway around the northern Taiwan coast from Hsinchu to Hualien with a distance of ∼ 275 km was carried out. No significant variation of the intensities of the different components of natural background radiation was observed, except when the train went underground or in the tunnels. The average external dose rate received by the crew of the train was estimated to be 62 nSv h(-1).
Department of Engineering and System Science, National Tsing Hua University, 101 Sec 2, Kung Fu Road, Hsinchu 30013, Taiwan, ROC.
Yen-Fu
YF
Chen
Jeng-Wei
JW
Lin
Rong-Jiun
RJ
Sheu
Uei-Tyng
UT
Lin
Shiang-Huei
SH
Jiang
D001417:Background Radiation; D002138:Calibration; D003359:Cosmic Radiation; D004784:Environmental Monitoring / Q000379:methods*; D040362:Geographic Information Systems; D005843:Geography; D006371:Helium / Q000032:analysis*; D006801:Humans; D007477:Ions; D009502:Neutrons; D011829:Radiation Dosage; D011834:Radiation Monitoring / Q000379:methods*; D013053:Spectrophotometry / Q000379:methods*; D013624:Taiwan; D014186:Transportation
D007477:Ions; D006371:Helium