Electromagnetic transition rates in theN=80nucleus58138Ce

Abstract

The half-life of the I π = 6 + yrast state at Ex=2294 keV in 138 Ce has been measured as T 1/2 =880(19) ps using the fast-timing gamma-ray coincidence method with a mixed LaBr3 (Ce)

Perturbed angular distributions withLaBr3detectors: Thegfactor of the first10+state inCdGray1, Stuchbery2, Reed3 et al. 2017Phys. Rev. C63151View full textAdd to dashboardCite

“…LaBr 3 detectors have excellent time resolution (∼300 ps is readily achievable [3][4][5][6][7][8][9][10]), and energy resolution much superior to other commonly used scintillators such as NaI and BaF 2 , making them an excellent choice for fast in-beam time differential perturbed angular distribution (TDPAD) measurements [11]. Thus the new opportunities for application of LaBr 3 detectors include the measurement of g factors of shorter-lived nuclear states in known, intense, static hyperfine magnetic fields in magnetic hosts, satisfying the condition τ T L = π/ω L , where τ is the nuclear mean life, and T L (ω L ) is the Larmor period (frequency) [12].…”

Digital processing of signals from LaBr3:Ce scintillation detectors

“…The development of fast scintillation detectors such as LaBr 3 :Ce (5% cerium) has led to a major step forward in γ-ray detection with scintillation detectors. The highlights of LaBr 3 :Ce (5%) detector include a very high light yield of 61 photons per keV, a high density of 5.08 g/cm 3 , high atomic number (Z La = 57 and Z Br = 35) and a fast decay-time constant of 35 ns with no intense slow component and afterglows [1]. Owing to these properties, LaBr 3 :Ce detectors exhibit very good timing and energy resolutions, as well as, large detection efficiency, making them a suitable candidate for use in various applications such as nuclear physics experiments [2,3] and medical imaging systems, e.g.…”

Perturbed angular distributions with LaBr$_3$ detectors: the $g$ factor of the first ${10^+}$ state in $^{110}$Cd revisited

“…The fit has two free parameters: σ/I and a normalization factor. For the 798-keV and 956-keV transitions the fitted values are σ/I = 0.32 (5) and σ/I = 0.30 (6), respectively. A value of σ/I ≈ 0.3 is common for heavyion fusion-evaporation reactions [26,[29][30][31].…”

“…In particular, HPGe detectors cannot be used in cases that use strong hyperfine magnetic fields with resultant high precession frequencies corresponding to periods 10 ns. LaBr 3 detectors have excellent time resolution (∼300 ps is readily achievable [3][4][5][6][7][8][9][10]), and energy resolution much superior to other commonly used scintillators such as NaI and BaF 2 , making them an excellent choice for fast in-beam Time Differential Perturbed Angular Distribution (TDPAD) measurements [11]. Thus the new opportunities for application of LaBr 3 detectors include the measurement of g factors of shorter-lived nuclear states in known, intense, static hyperfine magnetic fields in magnetic hosts, satisfying the condition τ T L = π/ω L , where τ is the nuclear mean life, and T L (ω L ) is the Larmor period (frequency) [12].…”