On-line apparatus bandit for half-life determination of short-lived neutron deficient isotopes

doi:10.1016/0029-554X(77)90241-5

Nuclear Instruments and Methods

Volume 143, Issue 3, 15 June 1977, Pages 519-523

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Abstract

A moving tape apparatus is described which allows the measurement of β half-lives in the region of 0.3 s to 10 min of neutron deficient isotopes produced by high energy particle accelerators. The recoiling reaction products are stopped in a tape behind the target. The tape moves with a preselected, constant velocity through a shielding to two Ge(Li) detectors. Half-lives are determined from fits of tape velocity dependent γ-ray intensities. The performance of the apparatus was tested by measuring γ-ray spectra from ¹⁸¹Ta(α,xn)^185−xRe reaction products at E_α = 133 MeV. The results for the isotopes $^{174} Re [(2.4±0.15) min],^{175} Re [(4.6±0.4) min],^{176} Re [(5.2±0.4) min] and^{180} Re [(2.6±0.2) min]$ are compared with the literature.

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^∗: Present address: Institut für Kernphysik der Kernforschungsanalage Jülich, W. Germany.

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On-line apparatus bandit for half-life determination of short-lived neutron deficient isotopes

Abstract

Nucl. Phys.

Nucl. Phys.

Diplom Thesis

Diplom Thesis