Ground Water Quantity Measurement on the Foot of Mt. Fuji by the Use of Radioisotopes

Journal Article · Mon Jan 01 04:00:00 EST 1962 · Radioisotopes (Tokyo)

DOI:https://doi.org/10.3769/radioisotopes.11.4_373· OSTI ID:4737325

OCHIAI, Toshiro; RODRIGUEZ, V. C.

The method and results of the measurement with an improved radioisotope velocity meter, and gamma-gamma logging with radioisotopes applied to ground water investigation in Fujinomiya near Mt. Fuji are described. With the new radioisotope velocity meter, velocity and direction of ground water flow can be determined at the same time. In order to determine the depth to which the isotope velocity meter should be placed and to compare the geological column of two test borings, radioactive logging (Co⁶⁰ 1 mc) was made. Based on these results, it is concluded that the lava strata with medium scattering intensity are of medium porosity and have the average ground water velocity, so it was decided to put the velocity meter at 42 meters depth. The computed ground water velocity was 1.316 x 10^-3 m/sec for No. 1 boring and 1.310 x 10^-3/ m/ sec for No. 2 boring. Radioisotope I¹³¹ solution (0.018 mu c/ml) was used. Direction of ground water flow was determined by the dilution ratio. On the basis of the data obtained by the present measurement, the amount of the ground water which flows 1 m wide section was estimated.

• Research Organization: Agricultural Engineering Research Station, Ministry of Agriculture and Forestry
• Sponsoring Organization: USDOE
• NSA Number: NSA-17-008416
• OSTI ID: 4737325
• Journal Information: Radioisotopes (Tokyo), Journal Name: Radioisotopes (Tokyo) Journal Issue: 4 Vol. 11; ISSN 0033-8303
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

COBALT 60
DISTRIBUTION
GAMMA RADIATION
GAMMA SOURCES
GEOLOGY, MINERALOGY, AND METEOROLOGY
GROUND WATER
HYDROLOGY
IODINE 131
ISOTOPE DILUTION
ISOTOPES
LEVELS
LIQUID FLOW
MEASURED VALUES
POROSITY
RADIOISOTOPES
ROCKS
SCATTERING
SOLUTIONS
TRACER TECHNIQUES
VELOCITY
WELL LOGGING