Published January 1982 | Version v1
Report Open

A rotary bandpass filter for lifetime measurements of reaction products induced by heavy ions

Creators

  • 1. Tokyo Inst. of Tech. (Japan). Faculty of Science
  • 2. Japan Atomic Energy Research Inst., Tokai, Ibaraki. Tokai Research Establishment

Description

An aparatus was constructed which intensified radioactivities of lifetimes ranging from 1/5 to 5 times as long as a measuring period prescribed. It consists of three foils symmetrically placed around a turntable. Each foil collects recoiled reaction products by turns for the measuring period. Then the deposited activities are counted in succession by two gamma-ray detectors so that the mean lifetimes of observed gamma-rays can be determined. The foils are rotated and repeat the sequence of processes cyclically. The aparatus, rotary bandpass filter, was used in experiments of searching for E0 transitions in Se isotopes, and a new one was found in 74-Se. (author)

Availability note (English)

MF available from INIS under the Report Number.

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Additional details

Publishing Information

Imprint Pagination
17 p.
Report number
JAERI-M--9901

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
14725214
Subject category
S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
CHLORINE 35 REACTIONS; DECAY; ELECTRIC FILTERS; EXPERIMENTAL DATA; E0-TRANSITIONS; JAERI TANDEM ACCELERATOR; LI-DRIFTED GE DETECTORS; LI-DRIFTED SI DETECTORS; LIFETIME; SELENIUM 74; TITANIUM 46 TARGET
Descriptors DEC
ACCELERATORS; DATA; ELECTROSTATIC ACCELERATORS; ENERGY-LEVEL TRANSITIONS; EVEN-EVEN NUCLEI; FILTERS; GE SEMICONDUCTOR DETECTORS; HEAVY ION REACTIONS; INFORMATION; INTERMEDIATE MASS NUCLEI; ISOTOPES; LI-DRIFTED DETECTORS; MEASURING INSTRUMENTS; MULTIPOLE TRANSITIONS; NUCLEAR REACTIONS; NUCLEI; NUMERICAL DATA; RADIATION DETECTORS; SELENIUM ISOTOPES; SEMICONDUCTOR DETECTORS; SI SEMICONDUCTOR DETECTORS; STABLE ISOTOPES; TANDEM ELECTROSTATIC ACCELERAT; TARGETS; VAN DE GRAAFF ACCELERATORS