Nuclear Data Sheets for A = 56

Junde, Huo

doi:10.1016/j.nds.2011.04.004

Cited by 124 publications

(64 citation statements)

References 336 publications

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“…[19] using very well-known transitions in the decay of 182 Ta [20] and 56 Co [21]. The intensities reported here include a 2% systematic uncertainty on efficiency for E γ < 1 MeV and 5% for energies larger than 1 MeV.…”

Section: Discussionmentioning

confidence: 81%

High-precisionγ-ray spectroscopy of the cardiac PET imaging isotopeRb82and its impact on dosimetry

et al. 2016

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82 Rb is a positron emitting isotope used in cardiac PET imaging which has been reported to deliver a significantly lower effective radiation dose than analogous imaging isotopes like 201 Tl and 99m Tc sestamibi. High quality β-decay data are essential to accurately appraise the total dose received by the patients. A source of 82 Sr was produced at the Brookhaven Linac Isotope Producer (BLIP) then transported to Argonne National Laboratory and studied with the Gammasphere facility. Significant revisions have been made to the level scheme of 82 Kr including 12 new levels, 50 new γ-ray transitions and the determination of many new spin assignments through angular correlations. These new high quality data allow a precise reappraisal of the β-decay strength function, and thus the consequent dose received by patients.

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Section: Discussionmentioning

confidence: 81%

High-precisionγ-ray spectroscopy of the cardiac PET imaging isotopeRb82and its impact on dosimetry

et al. 2016

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“…The half-life time of the 56 Co decay is 77.2 days (Junde et al 2011). As we discussed above, it is rather unlikely that the SLSN peaks are powered by radioactive decay because of the discrepancy between the Ni masses required by the peak luminosities and those required by the late-time decays.…”

Section: Radioactive Decaymentioning

confidence: 99%

Light Curves of Hydrogen-poor Superluminous Supernovae from the Palomar Transient Factory

Gal‐Yam

Rubin

et al. 2018

ApJ

135

126

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We investigate the light-curve properties of a sample of 26 spectroscopically confirmed hydrogen-poor superluminous supernovae (SLSNe-I) in the Palomar Transient Factory survey. These events are brighter than SNe Ib/c and SNe Ic-BL, on average, by about 4 and 2mag, respectively. The peak absolute magnitudes of SLSNe-I in rest-frame g band span −22M g −20 mag, and these peaks are not powered by radioactive 56 Ni, unless strong asymmetries are at play. The rise timescales are longer for SLSNe than for normal SNe Ib/c, by roughly 10 days, for events with similar decay times. Thus, SLSNe-I can be considered as a separate population based on photometric properties. After peak, SLSNe-I decay with a wide range of slopes, with no obvious gap between rapidly declining and slowly declining events. The latter events show more irregularities (bumps) in the light curves at all times. At late times, the SLSN-I light curves slow down and cluster around the 56 Co radioactive decay rate. Powering the late-time light curves with radioactive decay would require between 1 and 10 M e of Ni masses. Alternatively, a simple magnetar model can reasonably fit the majority of SLSNe-I light curves, with four exceptions, and can mimic the radioactive decay of 56 Co, up to ∼400 days from explosion. The resulting spin values do not correlate with the host-galaxy metallicities. Finally, the analysis of our sample cannot strengthen the case for using SLSNe-I for cosmology.

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“…Fe taken from Refs. [11,12]. The excitation functions of the transitions shown with continuous lines were determined during our measurements.…”

Section: Experimental Setup and Analysis Techniquementioning

confidence: 99%

“…We note that, although 57 Fe is less abundant than 54 Fe, the investigation of this isotope is of particular interest for two reasons: First, due to the particular structure of the even-even iron stable isotopes, the low-energy (E n ≤850 keV) neutron inelastic scattering on iron can only occur on 57 Fe: the first excited levels of 54 Fe and a e-mail: alnegret@tandem.nipne.ro 56 Fe lie at 1408 and 847 keV, respectively while 57 Fe has four excited levels below 850 keV [11][12][13]. Second, at high neutron energies (E n ≥7.5 MeV) the cross sections of the 56 Fe(n, n ) 56 Fe reaction determined using γ spectroscopy techniques and a nat Fe target (as it is our case) are "contaminated" by the 57 Fe(n, 2n) 56 Fe reactions occurring on the minor isotope.…”

Section: Introductionmentioning

confidence: 99%

(n, xn) cross sections on^56,57Fe

Negreţ

Borcea

Dessagne³

et al. 2017

EPJ Web Conf.

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Nuclear Data Sheets for A = 56

Cited by 124 publications

References 336 publications

High-precisionγ-ray spectroscopy of the cardiac PET imaging isotopeRb82and its impact on dosimetry

High-precisionγ-ray spectroscopy of the cardiac PET imaging isotopeRb82and its impact on dosimetry

Light Curves of Hydrogen-poor Superluminous Supernovae from the Palomar Transient Factory

(n, xn) cross sections on^56,57Fe

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Nuclear Data Sheets for A = 56

Cited by 124 publications

References 336 publications

High-precisionγ-ray spectroscopy of the cardiac PET imaging isotopeRb82and its impact on dosimetry

High-precisionγ-ray spectroscopy of the cardiac PET imaging isotopeRb82and its impact on dosimetry

Light Curves of Hydrogen-poor Superluminous Supernovae from the Palomar Transient Factory

(n, xn) cross sections on56,57Fe

Contact Info

Product

Resources

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(n, xn) cross sections on^56,57Fe