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AbstractAbstract
[en] A computer model for calculating the characteristics of a radiation field in a cobalt-60 irradiated volume is presented. γ-Ray transmission by the source material and attenuation in the support structure is taken into account as are attenuation and scattering in the irradiated material. On the basis of the computer model, a FORTRAN program was written for an IBM-PC/XT and Macintosh personal computers, and used to calculated the radiation field for some common cobalt-60 arrangements used in the Cornell γ-cell. The calculated exposure rate values were compared with ionization chamber measurements for an annular geometry of Co60 pencil sources. The agreement was to within 3%. (author)
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AbstractAbstract
[en] Solid standard spectrometric gamma-ray sources for liquid probes are developed. Polyethelene cans are filled with water-equivalent matrix with uniform distribution of radioactive material but not water solution of radionuclides (133Ba, 137Cs, 152Eu, 241Am). The solid standard sources may be applied at temperatures of -40/+40 deg C during 5 years
Original Title
Tverdye obraztsovye spektrometricheskie istochniki gamma-izlucheniya dlya zhidkikh prob (TOSGIZh)
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ACTINIDE NUCLEI, ALKANES, ALPHA DECAY RADIOISOTOPES, AMERICIUM ISOTOPES, BARIUM ISOTOPES, BETA DECAY RADIOISOTOPES, BETA-MINUS DECAY RADIOISOTOPES, BETA-PLUS DECAY RADIOISOTOPES, CESIUM ISOTOPES, DAYS LIVING RADIOISOTOPES, ELECTRON CAPTURE RADIOISOTOPES, EUROPIUM ISOTOPES, EVEN-ODD NUCLEI, FLUIDS, HEAVY NUCLEI, HOURS LIVING RADIOISOTOPES, HYDROCARBONS, INTERMEDIATE MASS NUCLEI, INTERNAL CONVERSION RADIOISOTOPES, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, MEASURING INSTRUMENTS, NUCLEI, ODD-EVEN NUCLEI, ODD-ODD NUCLEI, ORGANIC COMPOUNDS, OTHER ORGANIC COMPOUNDS, RADIATION SOURCES, RADIOISOTOPES, RARE EARTH NUCLEI, SPECTROMETERS, SPONTANEOUS FISSION RADIOISOTOPES, STANDARDS, WAXES, YEARS LIVING RADIOISOTOPES
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AbstractAbstract
[en] Short communications only
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Wu Jilan; Takehisa, M; 368 p; 1992; p. 125; 8. international meeting on radiation processing; Beijing (China); 13-18 Sep 1992; Available from China Nuclear Information Centre
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Miscellaneous
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AbstractAbstract
[en] Short communications only
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Source
Wu Jilan; Takehisa, M; 368 p; 1992; p. 131; 8. international meeting on radiation processing; Beijing (China); 13-18 Sep 1992; Available from China Nuclear Information Centre
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Miscellaneous
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AbstractAbstract
[en] Short communications only
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Source
Wu Jilan; Takehisa, M; 368 p; 1992; p. 141; 8. international meeting on radiation processing; Beijing (China); 13-18 Sep 1992; Available from China Nuclear Information Centre
Record Type
Miscellaneous
Literature Type
Conference
Country of publication
BETA DECAY RADIOISOTOPES, BETA-MINUS DECAY RADIOISOTOPES, COBALT ISOTOPES, DEVELOPED COUNTRIES, INTERMEDIATE MASS NUCLEI, INTERNAL CONVERSION RADIOISOTOPES, IRRADIATION, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, MINUTES LIVING RADIOISOTOPES, NORTH AMERICA, NUCLEI, ODD-ODD NUCLEI, RADIOISOTOPES, STERILIZATION, YEARS LIVING RADIOISOTOPES
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AbstractAbstract
[en] Short communications only
Primary Subject
Source
Wu Jilan; Takehisa, M; 368 p; 1992; p. 142; 8. international meeting on radiation processing; Beijing (China); 13-18 Sep 1992; Available from China Nuclear Information Centre
Record Type
Miscellaneous
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Conference
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AbstractAbstract
[en] Short communications only
Primary Subject
Source
Wu Jilan; Takehisa, M; 368 p; 1992; p. 225; 8. international meeting on radiation processing; Beijing (China); 13-18 Sep 1992; Available from China Nuclear Information Centre
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Miscellaneous
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AbstractAbstract
[en] The Multipurpose Cobalt-60 Gamma Irradiation Facility at the PNRI presently utilizes the batch irradiation method using turntables to rotate the product boxes. The target materials or products are being carried manually or with the use of pushcart through the personnel maze. This paper presents a conceptual design for the best suitable product-handling or conveyor system for the Philippine Multipurpose Cobalt-60 Gamma Irradiation Facility. The main irradiation conveyor line shall be a 55 cm x 200 cm slat-type conveyor made of SUS 304 material that could be operated in a semi-batch continuous flow and/or shuffle-dwell method with a tact-time range of 10 min to 7 h. The products can be irradiated in a single direction, two-pass, two-sided method. (auth.). 11 refs.; 4 figs.; 2 tabs
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ASIA, BETA DECAY RADIOISOTOPES, BETA-MINUS DECAY RADIOISOTOPES, COBALT ISOTOPES, DEVELOPING COUNTRIES, EQUIPMENT, INTERMEDIATE MASS NUCLEI, INTERNAL CONVERSION RADIOISOTOPES, ISLANDS, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, MATERIALS HANDLING EQUIPMENT, MINUTES LIVING RADIOISOTOPES, NUCLEAR FACILITIES, NUCLEI, ODD-ODD NUCLEI, RADIATION SOURCES, RADIOISOTOPES, YEARS LIVING RADIOISOTOPES
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AbstractAbstract
[en] The Food and Agriculture Organization (FAO), a United Nations Organization, in an effort to increase food supplies by post harvest irradiation treatment, participated in the development of the Min Bei Irradiation Center (MBIC) located in Fujian Province, China. FAO in conjunction with Shanghai Nuclear Energy Research and Design Institute (SNERDI), MBIC staff, and the Ministry of Agriculture completed Project TCP CPR 6763/8961 culminating in the recent commissioning of one of China's newest irradiation facilities. From the feasibility phase initiated in 1986, through the construction period and the eventual commissioning in 1991, FAO participated in the technical overview of the irradiation center. MBIC was developed both as a research and development center as well as a production irradiation facility for the primary purpose of reduction of post harvest food loss in Fujian Province. This retrospective review of the project provides a hindsight view for the development of MBIC. (author)
Primary Subject
Source
8. international meeting on radiation processing; Beijing (China); 13-18 Sep 1992
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AbstractAbstract
[en] It is shown that the ionization efficiency for particles emitted through a small hole of a hot cavity can be well described by the Saha thermal ionization formula. (Auth.)
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Nuclear Instruments and Methods; ISSN 0029-554X;
; v. 153(1); p. 291-292

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