New test of modulated electron capture decay of hydrogen-like 142Pm ions: Precision measurement of purely exponential decay

An experiment addressing electron capture (EC) decay of hydrogen-like 142Pm60+ions has been conducted at the experimental storage ring (ESR) at GSI. The decay appears to be purely exponential and no modulations were observed. Decay times for about 9000 individual EC decays have been measured by applying the single-ion decay spectroscopy method. Both visually and automatically analysed data can be described by a single exponential decay with decay constants of 0.0126(7)s−1for automatic analysis and 0.0141(7)s−1for manual analysis. If a modulation superimposed on the exponential decay curve is assumed, the best fit gives a modulation amplitude of merely 0.019(15), which is compatible with zero and by 4.9 standard deviations smaller than in the original observation which had an amplitude of 0.23(4)

X-ray criterion for assessment of state of equilibrium of multi-component metallic melts

15.00; Translated from Russian (Izv. Vyssh. Uchebn. Zaved., Chern. Metall. 1986 (4) p. 75-77)SIGLEAvailable from British Library Document Supply Centre- DSC:9022.06(BISI--25175)T / BLDSC - British Library Document Supply CentreGBUnited Kingdo

Influence of pretreatment of liquid metal before atomization on the structure and properties of powder and extruded compacts of 10R6M5 steel

15.00; Translated from Russian (Stal' 1986 (6) p. 87-89)SIGLEAvailable from British Library Document Supply Centre- DSC:9022.06(BISI--25300)T / BLDSC - British Library Document Supply CentreGBUnited Kingdo