Extended applications and improvement of the 4$pi$$beta$$-$$gamma$ coincidence method in the standardization of radionuclides (in Japanese)
Journal Article
·
· Denshi Gijutsu Sogo Kenkyusho Kenkyu Hokoku, no. 730, pp. 1-100
OSTI ID:4350303
The principle and general nature of the 4 pi BETA - gamma coincidence method and a detailed interpretation of correction are reviewed. A new technique is presented, which combines the 4 pi BETA - gamma and the 2 pi BETA - gamma coincidence eountings and offers significant improvement in counting statistics in addition to the considerable reduction of error due to spurious pulses, noise, radioactive contaminants and background fluctuation. The response of the 4 pi BETA -counter to low energy internal conversion electrons is reported. Several possible causes of systematic error in measuring complex decaying nuclides by coincidence absorption method are discussed. In an attempt to overcome complexity in procedures in the 4 pi BETA - gamma coincidence absorption method, a novel method was developed by using a 4 pi BETA - gamma anticoincidence set-up with a Ge(Li) detector which is described. (JA)
- Research Organization:
- Electrotechnical Lab., Tokyo
- NSA Number:
- NSA-29-018083
- OSTI ID:
- 4350303
- Journal Information:
- Denshi Gijutsu Sogo Kenkyusho Kenkyu Hokoku, no. 730, pp. 1-100, Journal Name: Denshi Gijutsu Sogo Kenkyusho Kenkyu Hokoku, no. 730, pp. 1-100; ISSN DGSKB
- Country of Publication:
- Japan
- Language:
- Japanese
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Related Subjects
*COINCIDENCE METHODS
*RADIATION SOURCES-- CALIBRATION
*RADIOISOTOPES-- RADIOMETRIC ANALYSIS
ABSOLUTE COUNTING
ANTICOINCIDENCE
BETA DETECTION
CORRECTIONS
ERRORS
FOUR-PI COUNTING
GAMMA DETECTION
GAMMA SPECTROMETERS
LI-DRIFTED GE DETECTORS
N40130* --Chemistry--Analytical & Separations Chemistry-- Radiometric & Radiochemical Procedures
N46110 --Instrumentation--Radiation Detection Instruments--General Detectors & Monitors
N72300 --Physics (Radiation & Shielding)--Radiation Source Calibration & Standardization
PROPORTIONAL COUNTERS
*RADIATION SOURCES-- CALIBRATION
*RADIOISOTOPES-- RADIOMETRIC ANALYSIS
ABSOLUTE COUNTING
ANTICOINCIDENCE
BETA DETECTION
CORRECTIONS
ERRORS
FOUR-PI COUNTING
GAMMA DETECTION
GAMMA SPECTROMETERS
LI-DRIFTED GE DETECTORS
N40130* --Chemistry--Analytical & Separations Chemistry-- Radiometric & Radiochemical Procedures
N46110 --Instrumentation--Radiation Detection Instruments--General Detectors & Monitors
N72300 --Physics (Radiation & Shielding)--Radiation Source Calibration & Standardization
PROPORTIONAL COUNTERS