Published July 16, 1975 | Version v1
Report Metadata-only

Investigations on prompt and delayed fission in 236U with parallel-plate avalanche counters

Creators

Description

A parallel-plate counter was developed to detect fission fragments. The functioning of the plate counter - with special regard to fission fragments as primary ionizing particles -, its construction and the fabrication method are described. The features of the detector are investigated and discussed using spontaneous nuclear fission in 252Cf and induced nuclear fission according to the nuclear reactions 235U(α,f), 238U(p,f) and 235U(Li,f). Its features make the plate counter particularly suitable for the investigation of delayed nuclear fission. This is demonstrated by means of an experiment with pulsed deuteron beam (Esub(d) = 11 MeV), in which the prompt and delayed nuclear fission in 236U according the reaction 235U(d,p) was investigated. (orig./ORU)

Abstract (German)

Es wurde ein Parallel-Plattenzaehler zum Nachweis von Spaltfragmenten entwickelt. Die Arbeitsweise des Plattenzaehlers - mit besonderer Beruecksichtigung von Spaltfragmenten als primaer ionisierende Teilchen -, sein Aufbau und das Herstellungsverfahren werden beschrieben. Die Eigenschaften des Detektors werden untersucht und diskutiert anhand spontaner Kernspaltung in 252Cf und induzierter Kernspaltung nach den Kernreaktionen 235U(α,f), 238U(p,f) und 235U(Li,f). Seine Eigenschaften machen den Plattenzaehler besonders geeignet fuer die Untersuchung von verzoegerter Kernspaltung. Dies wird demonstriert anhand eines Experimentes mit gepulstem Deuteronenstrahl (Esub(d) = 11 MeV), in welchem die prompte und verzoegerte Kernspaltung in 236U nach der Kernreaktion 235U(d,p) untersucht wurde. (orig./ORU)

Additional details

Publishing Information

Imprint Pagination
51 p.

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
7275914
Subject category
S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Resource subtype / Literary indicator
Thesis, Non-conventional Literature
Descriptors DEI
COUNTING RATES; DEUTERON BEAMS; ENERGY RESOLUTION; FABRICATION; FISSION; FISSION FRAGMENT DETECTION; IONIZATION CHAMBERS; ISOMERIC TRANSITIONS; PERFORMANCE; TIME RESOLUTION; URANIUM 236 TARGET; USES
Descriptors DEC
BEAMS; ENERGY-LEVEL TRANSITIONS; ION BEAMS; MEASURING INSTRUMENTS; NUCLEAR REACTIONS; RADIATION DETECTION; RADIATION DETECTORS; RESOLUTION; TARGETS; TIMING PROPERTIES

Optional Information

Notes
16 figs.; 32 refs. Available from ZAED.