Use of jump spark counter of fission-fragment-induced tracks to measure differential fission cross sections
The authors examine the problem of the detection of fission fragments in scientific research and in the solution of some applied problems through the spark method of track counting. This method is based on the electrical breakdown of radiation damage induced by fission fragments in thin organic films whose thickness is much smaller than the mean free path of the fragment. It is shown that in measurements of the angular distributions of fission fragments the application of the spark method not only facilitates the process of reading them but also is justified by the possibility of attaining an accuracy that is comparable to that of the visual method. To irradiate the plastic-film detectors, the authors used an open source of fission fragments from the spontaneous fission of /sup 252/Cf, prepared from a homogeneous mixture of the nuclides /sup 238/U and /sup 252/Cf. The results of measurements of the track-counting efficiency of the jumping spark counter for various track densities and sizes of the high-voltage electrode are given. The angular distribution of fission fragments from the fission of /sup 206/Pb by alpha particles of energy around 40 MeV was measured on the Alma Ata cyclotron and the results are presented.
- Research Organization:
- L. Kossuth Univ., Debrecen, Hungary
- OSTI ID:
- 6380523
- Journal Information:
- Sov. At. Energy (Engl. Transl.); (United States), Vol. 61:1; Other Information: Translated from At. Energ.; 61: No.1, 42-44(Jul 1986)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ALPHA REACTIONS
DIFFERENTIAL CROSS SECTIONS
CALIFORNIUM 252
SPONTANEOUS FISSION
DIELECTRIC TRACK DETECTORS
PERFORMANCE TESTING
SENSITIVITY
FISSION FRAGMENTS
ANGULAR DISTRIBUTION
FOILS
MATERIALS TESTING
PHYSICAL RADIATION EFFECTS
LEAD 206 TARGET
SPARK COUNTERS
ALUMINIUM
COUNTING RATES
FISSION FOIL DETECTORS
FISSION FRAGMENT DETECTION
FISSION TRACKS
FISSION YIELD
IRRADIATION
MICA
POLYCARBONATES
URANIUM 238
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
CALIFORNIUM ISOTOPES
CARBON COMPOUNDS
CARBONATES
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DECAY
DETECTION
DISTRIBUTION
ELEMENTS
EVEN-EVEN NUCLEI
FISSION
HEAVY NUCLEI
ISOTOPES
MEASURING INSTRUMENTS
METALS
NEUTRON DETECTORS
NUCLEAR FRAGMENTS
NUCLEAR REACTION YIELD
NUCLEAR REACTIONS
NUCLEI
OXYGEN COMPOUNDS
PARTICLE TRACKS
RADIATION DETECTION
RADIATION DETECTORS
RADIATION EFFECTS
RADIOISOTOPES
TARGETS
TESTING
URANIUM ISOTOPES
YEARS LIVING RADIOISOTOPES
YIELDS
440101* - Radiation Instrumentation- General Detectors or Monitors & Radiometric Instruments
440200 - Radiation Effects on Instrument Components
Instruments
or Electronic Systems