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Singh, V.P.
Ontario Hydro, Toronto, ON (Canada). Research Center1985
Ontario Hydro, Toronto, ON (Canada). Research Center1985
AbstractAbstract
[en] Methods for tracer gas test have been conceived and are proposed for use in conjunction with other techniques used during off-power pressurization tests. During pressurization tests is appears possible to quantify leaks through containment boundaries which make up one of the walls in adjacent rooms but quantification of leaks to open areas will require further development. Several gases may be used as tracers during pressurization tests but the preferred tracer gas is sulphur hexafluoride (SF6) at an in-vault concentration of 100 μL/L if open area sampling is to be carried out of 10 μL/L if only closed room sampling is to be performed. Large values of the ratio (tracer gas concentration in containment/lower detection limit) are necessary for identification of leak sites in open areas having significant ventilation flow. It is recommended that in-station trials be carried out to test the validity of this technique. In addition, a tracer gas technique for use during on-power operation is also proposed but leak site identification and quantification during on-power tests is only possible for containment boundaries which make up the wall(s) of adjacent rooms. The use of SF6 is required for tests conducted during on-power operation. The recommended in-vault concentration is 10 μL/L. Recommendations are made for future work, including leak tests during on-power operation
Primary Subject
Source
Nov 1985; 27 p
Record Type
Report
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Country of publication
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Singh, V.P.
Canadian Fusion Fuels Technology Project, Toronto, ON (Canada)1987
Canadian Fusion Fuels Technology Project, Toronto, ON (Canada)1987
AbstractAbstract
[en] Results of an experimental study on a flowing bed process for continuous hydrogen isotope separation are presented. Separation performance was low with a 25% by weight palladium on alumina adsorbent, resulting in a high tritium inventory. In addition, significant breakdown of the solid adsorbent occurred as it recirculated through the process equipment and the product streams were contaminated by the adsorbent carrier gas. Due to these problems, this flowing bed process is predicted to be uneconomic for a full scale plant
Primary Subject
Source
Mar 1987; 47 p
Record Type
Report
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Country of publication
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AbstractAbstract
[en] The mass attenuation coefficient (μ/ρ), effective atomic number (ZPleff) and effective electron density (Neff) of carbon steel and stainless steels were computed by using the WinXcom program. The μ/ρ values are higher in the photo-electric absorption and pair production region and approximately constant in the Compton scattering region. The variation in μ/ρ values is explained by partial interaction processes. The effective atomic numbers of the steels were also calculated by the Auto-Zeff program. The ZPleff values of the steels were compared with experimental results for available energies and were found to be in good agreement. SS304L shows equal values of effective atomic number by both the methods in the region of interest. The electron densities of the selected steels are observed to be equal and approximately constant in the Compton scattering region. (authors)
Primary Subject
Secondary Subject
Source
Available from doi: http://dx.doi.org/10.1051/radiopro/2013067; 26 refs.
Record Type
Journal Article
Literature Type
Numerical Data
Journal
Country of publication
ALLOYS, BASIC INTERACTIONS, CARBON ADDITIONS, COMPUTER CODES, DATA, ELASTIC SCATTERING, ELECTROMAGNETIC INTERACTIONS, ELECTROMAGNETIC RADIATION, ENERGY RANGE, GEV RANGE, HIGH ALLOY STEELS, INFORMATION, INTERACTIONS, IONIZING RADIATIONS, IRON ALLOYS, IRON BASE ALLOYS, KEV RANGE, NUMERICAL DATA, PARTICLE PRODUCTION, RADIATIONS, SCATTERING, SIMULATION, STEELS, TRANSITION ELEMENT ALLOYS
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Singh, V.P.
Silver Jubilee Physics Symposium: 25th year of nuclear physics and solid state physics symposium [Papers]1981
Silver Jubilee Physics Symposium: 25th year of nuclear physics and solid state physics symposium [Papers]1981
AbstractAbstract
[en] Effect of etching intervals on etchpit diameter of fission fragment tracks of 252Cf has been studied using different etching solutions. The effect is remarkable when 48 percent HF is used as an etchant and decreases as the concentration of etchant is reduced. 1.25 percent HF and etching solution consisting of HF (48 percent), H2SO4 (96 percent) and H2O in the ratio 6:1:18 with suitable amount of zinc added show no such effect. (author)
Source
Department of Atomic Energy, Bombay (India); 279 p; 1981; p. 241-242; Department of Atomic Energy; Bombay (India); Nuclear physics and solid state physics symposium; Bombay (India); 28 Dec 1981 - 1 Jan 1982
Record Type
Book
Literature Type
Conference
Country of publication
ACTINIDE NUCLEI, ALPHA DECAY RADIOISOTOPES, CALIFORNIUM ISOTOPES, EVEN-EVEN NUCLEI, FLUORINE COMPOUNDS, HALOGEN COMPOUNDS, HEAVY NUCLEI, HYDROGEN COMPOUNDS, INORGANIC ACIDS, ISOTOPES, MEASURING INSTRUMENTS, NUCLEAR FRAGMENTS, NUCLEI, PARTICLE TRACKS, RADIATION DETECTORS, RADIOISOTOPES, YEARS LIVING RADIOISOTOPES
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] Results are presented on an experimental study of a flowing bed process for continuous hydrogen isotope separation. Separation performance was low with a 25% by weight palladium on alumina adsorbent, resulting in both a high adsorbent cost and tritium inventory. In addition, significant breakdown of the solid adsorbent occurred as it recirculated through the process equipment and the product streams were contaminated by the adsorbent carrier gas. Due to these problems, this flowing bed process is predicted to be uneconomic for a full scale plant
Primary Subject
Secondary Subject
Source
3. topical meeting on tritium technology in fission, fusion and isotopic applications; Toronto (Canada); 1-6 May 1988; CONF-880505--
Record Type
Journal Article
Literature Type
Conference; Numerical Data
Journal
Country of publication
ALUMINIUM COMPOUNDS, BETA DECAY RADIOISOTOPES, BETA-MINUS DECAY RADIOISOTOPES, CHALCOGENIDES, DATA, ELEMENTS, INDUSTRIAL PLANTS, INFORMATION, ISOTOPE SEPARATION PLANTS, ISOTOPES, KINETICS, LIGHT NUCLEI, METALS, NUCLEAR FACILITIES, NUCLEI, NUMERICAL DATA, ODD-EVEN NUCLEI, OXIDES, OXYGEN COMPOUNDS, PLATINUM METALS, RADIOISOTOPES, REACTION KINETICS, SEPARATION PROCESSES, TRANSITION ELEMENTS, YEARS LIVING RADIOISOTOPES
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] The analysis for Kopal's system of Roche coordinates associated with the Roche model of a star distorted by the tidal forces of a companion star, has been extended further to obtain the metric coefficients of the Roche coordinates when terms up to second order of smallness in tidal effects are considered. (author)
Primary Subject
Source
5 refs.
Record Type
Journal Article
Journal
Proceedings - Indian National Science Academy. Part A, Physical Sciences; ISSN 0370-0046;
; v. 47(4); p. 417-427

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Singh, V.P.
Canadian Fusion Fuels Technology Project, Toronto, Ontario1984
Canadian Fusion Fuels Technology Project, Toronto, Ontario1984
AbstractAbstract
[en] Molecular sieve driers have been included in the design of tritium handling systems for fusion reactors. In these systems there is a need to maintain extremely low exit dew points from the driers as well as a capability to rapidly reduce tritium concentrations following an accident. The required capacity of the driers is very high. The conventional method of regenerating these sieves after a water adsorption cycle is with hot air. However, because water is rapidly heated by microwave energy, this technology may be suitable for decreasing the bed regeneration time and hence may allow reduced capital and operating costs associated with a smaller bed. The present study was conducted to obtain preliminary information on the technical feasibility of regenerating molecular sieves with microwave energy. The study concentrated on Type 4A molecular sieve with a few tests on Type 13X sieve and also a silica gel adsorbent
Primary Subject
Source
May 1984; 33 p
Record Type
Report
Report Number
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
No abstract available
Primary Subject
Source
Letter-to-the-editor.
Record Type
Journal Article
Journal
Current Science (Bangalore); ISSN 0011-3891;
; v. 51(18); p. 891-892

Country of publication
BETA DECAY RADIOISOTOPES, BETA-MINUS DECAY RADIOISOTOPES, COBALT ISOTOPES, DIMENSIONS, ELECTROMAGNETIC RADIATION, GROWTH, INTERMEDIATE MASS NUCLEI, IONIZING RADIATIONS, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, MINUTES LIVING RADIOISOTOPES, MUTANTS, NUCLEI, ODD-ODD NUCLEI, OPTICAL PROPERTIES, ORGANOLEPTIC PROPERTIES, PHYSICAL PROPERTIES, PLANTS, RADIATIONS, RADIOISOTOPES, YEARS LIVING RADIOISOTOPES
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Magal, B.S.; Sunder Singh, V.P.
Proceedings of the national symposium on isotope applications in industry, [held at] Bombay, February 2-5, 19771979
Proceedings of the national symposium on isotope applications in industry, [held at] Bombay, February 2-5, 19771979
AbstractAbstract
[en] A brief literature survey of the existing conventional units and the nucleonic belt weigher is made. The design of a 250 ton per hour coal weighing unit working in conjunction with a 24 inch wide belt, running at 350 feet per minute has been attempted and a unit has been built to the above specifications. Caseium-137 line source has been used as an isotope and a 10 litre volume argon filled ionisation chamber has been used as a detector. A line source has been preferred to a point source. The unit is under trial and the accuracy of the same is being evaluated by changing the variables like particle size profile of the material deposited on the belt and sudden changes in loading. Initial trials indicate that an accuracy of +- 1 p.c. can be achieved. (auth.)
Primary Subject
Source
Department of Atomic Energy, Bombay (India). Board of Research in Nuclear Sciences; p. 155-184; 1979; p. 155-184; Department of Atomic Energy; Bombay; National symposium on isotope applications in industry; Bombay, India; 2 - 5 Feb 1977; 7 refs., 7 figures.
Record Type
Book
Literature Type
Conference
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] Investigations were carried out to examine the individual and combined influence of a morphactin (chlorflurenol) (10-100 ppm) and gamma-irradiation(40-60 KR) on growth and yield attributes in okra (Abelmoschus esculentus (L.) Moench) Cv-Pusa Sawani. Morphactin caused inhibition of vegetative growth and weakened apical dominance. Gamma-irradiation of seeds reduced the growth and stimulated the branching. The combinations of gamma radiation and morphactin were found to inhibit the growth more vigorously. Morphactin application promoted fruit-set and yield at all the used concentrations. Gamma-irradiation enhanced the fruit-set and yield at 40 and 50 KR and reduced drastically at 60 KR. Combination of gamma radiation (40 KR) with morphactin (10-50 ppm) increased the yield while other combinations reduced this factor in okra. (author)
Primary Subject
Source
11 refs.
Record Type
Journal Article
Journal
Indian Journal of Botany; ISSN 0250-829X;
; v. 6(1); p. 5-9

Country of publication
BETA DECAY RADIOISOTOPES, BETA-MINUS DECAY RADIOISOTOPES, BIOLOGICAL EFFECTS, COBALT ISOTOPES, ELECTROMAGNETIC RADIATION, FOOD, GROWTH, INTERMEDIATE MASS NUCLEI, IONIZING RADIATIONS, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, MINUTES LIVING RADIOISOTOPES, NUCLEI, ODD-ODD NUCLEI, PLANTS, RADIATION EFFECTS, RADIATIONS, RADIOISOTOPES, TREES, UPTAKE, YEARS LIVING RADIOISOTOPES
Reference NumberReference Number
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