None

*; *

PNC TJ1630 97-001, 37 Pages, 1997/03

PNC-TJ1630-97-001.pdf:1.5MB

no abstracts in English

Study on the environmental movements of Radon and its decay nuclides (II)

Morishima, Hiroshige*; Koga, Taeko*

PNC TJ1630 96-001, 27 Pages, 1996/03

PNC-TJ1630-96-001.pdf:0.87MB

no abstracts in English

None

PNC TJ1545 95-001, 150 Pages, 1995/03

PNC-TJ1545-95-001.pdf:5.28MB

no abstracts in English

A Radioanalytical Method for Samarium-151 and Promethium-147in Environmental Samples

Sumiya, Shuichi; Hayashi, Naomi; ; Narita, Osamu

PNC TN8430 91-001, 45 Pages, 1990/12

PNC-TN8430-91-001.pdf:0.85MB

A radioanalytical method for low level samarium-151(Sm-151) and promethium-147(Pm-147) in environmental samples has been studied for the environmental assessment around nuclear facilities. In this study, we use the separation method with high performance liquid chromatography (HPLC) to determine Sm-151 and Pm-147 in environmental samples such as sea sediments and marine organisms. Samarium-151 and Pm-147 in environmental samples are coprecipitated with other lanthanoids after adding neodymium(Nd). These nuclides are purified by anion exchange methods in methanol-mineral acid media. After the purification, Sm-151 and Pm-147 are separated with HPLC in lactic acid-sodium hydroxide media, and determined with liquid scintillation counting, respectively. The Nd is determined by inductively coupled plasma atomic emission spectrometry (ICP-AES) to correct chemical recoveries of these nuclides. The detection limits for Sm-151 and Pm-147 in this method are about 0.01Bq/sample.

A Sample Changer System; Automaic Measurements of the Neutron Capture Cross Section

; ;

JAERI-M 6010, 35 Pages, 1975/03

JAERI-M-6010.pdf:1.09MB

no abstracts in English