Multipole mixing ratios of transitions inTc99

Core vibration of99Tc

“…Prior published data: A2 = +0.155(15); A4=+0.015(20 )[29] and A2=+0.113(6); A4= + 0.004(8)[ 17] are in disagreement with our result 1~ and have no overlap with any of the theoretical coefficients ofTable 4. They have not been corrected for this effect.…”

“…The last survey of the A = 99 chain by the Nuclear Data Group [15, p. 703 The spin 3/2 + for the 920.7 keV state which was postulated by Gardulski and Wiedenbeck [17] can be excluded definitely by our result. The last survey of the A = 99 chain by the Nuclear Data Group [15, p. 703 The spin 3/2 + for the 920.7 keV state which was postulated by Gardulski and Wiedenbeck [17] can be excluded definitely by our result.…”

“…5) the delayed coincidences between the 740 keV and the 181 keV ?,-radiations were observed. directional correlation is not expected in dilute solutions of MoO4 -in NH4OH according to the results obtained by Gardulski and Wiedenbeck [ 17]. On the other hand a reasonable attenuation of the 740-181 keV 7 -?…”

“…Since our precise result deviates significantly from the old value we have used it for a renormalization. Within the "de-Shalit"-model the M1transitions between two members of a multiplet are al- 10 The large disagreement with the latter data [17] which were obtained by use of Ge-detectors is quite remarkable. Our result for the 41-141 keV directional correlation can be used to confirm both mixing ratios and to derive the signs of both mixing parameters.…”

Analysis of odd-mass technetium isotopes with the Alaga model

“…A rather large amount of experimental investigations have been devoted to odd-mass technetium isotopes during the last few years: 95Tc [1][2][3][4], 9"7Tc [5,6], 99Tc [7,8] and l~ [9]. The positive-parity low-energy sequence systematics for these nuclei are shown in Figure 1.…”