Nuclear Data Sheets for A = 58

Nesaraja, C. D.; Geraedts, Scott D.; Singh, Balraj

doi:10.1016/j.nds.2010.03.003

Cited by 83 publications

(69 citation statements)

References 447 publications

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“…It is noted that the level at 4406 keV results from a reordering of the 264-(see Fig. 2) and 1805-keV transitions relative to previous studies [57,58], which reported a level at 2865 keV. The identification of the 519-, 956-, and 2330-keV γ rays here confirms the placement of the state at 4406 keV, and the spin-parity quantum numbers of all the levels in the structure are given unambiguously.…”

Section: Level Schemesupporting

confidence: 81%

“…Despite the fact that the 1907-keV peak forms an unresolved doublet with the 1898-keV line in Band 2 of comparable intensity (discussed later), the summed angular distribution is characteristic of a stretched-quadrupole transition. Therefore, both γ rays are assumed to be of E2 character here, in agreement with previous studies [57,58]. Figure 4(a) provides a spectrum formed by placing two simultaneous energy gates (hereafter referred to as double gates) at 1266 and 1521 keV.…”

Section: Level Schemesupporting

confidence: 68%

“…New transitions in 58 Fe were identified on the basis of coincidence relationships with known γ rays, which are compiled in Refs. [57,58]. Transition intensities were measured using data from the 13 C target experiment, since a larger number of γ rays were identified in that reaction.…”

Section: Methodsmentioning

confidence: 99%

“…However, those results are only available as a private communication to Refs. [57,58], and many tentative transitions are included in these compilations. Despite the uncertainties, the level scheme was extended to J ∼ 15h at 12.8 MeV by Appelbe et al [57,58], which corresponds to the 12815-keV level in Fig.…”

Section: Level Schemementioning

confidence: 99%

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Magnetic rotation and quasicollective structures in58Fe: Influence of theνg9/2orbital

et al. 2012

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Section: Level Schemesupporting

confidence: 81%

Section: Level Schemesupporting

confidence: 68%

Section: Methodsmentioning

confidence: 99%

Section: Level Schemementioning

confidence: 99%

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Magnetic rotation and quasicollective structures in58Fe: Influence of theνg9/2orbital

et al. 2012

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“…However, it can be shown that the B(E2) " value is relatively independent of the assumption of the spin of the final state and in all cases results in a value of ⇡ 30 W.u., more than double that observed for the 2 62 Fe. This large B(E2) value would imply an intrinsic quadrupole moment, Q 2 (4 (+) ) ⇡ 122 efm 2 , within the rigid-rotor model [68] that can be compared to the limits extracted from the spectroscopic quadrupole moment measured in recent laser spectroscopy measurements, |Q 2 (4 (+) )| < 40 efm 2 [65]. Such a strong transition is therefore not expected.…”

Section: Assignment Of the 418 Kev Transition In 62 Mnmentioning

confidence: 95%

Low-energy Coulomb excitation of 62Fe and 62Mn following in-beam decay of 62Mn

et al. 2015

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Abstract. Sub-barrier Coulomb-excitation was performed on a mixed beam of 62 Mn and 62 Fe, following in-trap β − decay of 62 Mn at REX-ISOLDE, CERN. The trapping and charge breeding times were varied in order to alter the composition of the beam, which was measured by means of an ionisation chamber at the zero-angle position of the Miniball array. A new transition was observed at 418 keV, which has been tentatively associated to a (2 + , 3transition. This fixes the relative positions of the β-decaying 4 + and 1 + states in 62 Mn for the first time. Population of the 2

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Monte Carlo calculated calibration settings for commercially available nuclear medicine ionization chambers

2022

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Purpose A method for calculating nuclear medicine ionization chamber (NMIC) calibration settings with a Monte Carlo model is presented and validated against physical measurements. This work provides Monte Carlo–calculated calibration settings for select isotopes with no current manufacturer recommendations and a method by which NMIC manufacturers or standards laboratories can utilize highly detailed specifications to calculate comprehensive lists of calibration settings for general isotopes. Methods A Monte Carlo model of a Capintec PET series NMIC was developed and used to calculate the chamber response to relevant radioactive decay products over an energy range relevant to nuclear medicine. The photon detection efficiency (PDE) of a high purity germanium (HPGe) detector was modeled and physically validated to facilitate measurements of NMIC calibration settings with HPGe detector spectroscopy. Modeled NMIC response to various isotopes was compared against spectroscopic measurements and National Institute of Standards and Technology (NIST)‐validated calibration settings to validate the Monte Carlo–calculated NMIC calibration settings. Results HPGe detector PDE was validated against the physical measurements to within 3.3%$3.3\%$ at 95%$95\%$ confidence and used to measure calibration settings, which produced activity readings 0.7%$0.7\%$, 1.6%$1.6\%$, 0.8%$0.8\%$, and 1.0%$1.0\%$ different than those validated by NIST for 11$^{11}$C, 18$^{18}$F, 68$^{68}$Ga, and 64$^{64}$Cu respectively. The Monte Carlo model of the NMIC reproduced measured calibration settings to within 7%$7\%$ at 95%$95\%$ confidence for isotopes with a sufficiently small yield of low energy photons. Conclusions A method of calculating NMIC calibration settings with Monte Carlo modeling has been developed and validated against HPGe detector spectroscopy. NMIC manufacturers or standards laboratories can use more detailed specifications of the chamber geometries to extend the applicability of this method to a wider range of isotopes.

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Nuclear Data Sheets for A = 58

Cited by 83 publications

References 447 publications

Magnetic rotation and quasicollective structures in58Fe: Influence of theνg9/2orbital

Magnetic rotation and quasicollective structures in58Fe: Influence of theνg9/2orbital

Low-energy Coulomb excitation of 62Fe and 62Mn following in-beam decay of 62Mn

Monte Carlo calculated calibration settings for commercially available nuclear medicine ionization chambers

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