ADOPTED LEVELS, GAMMAS for 159Pm
Author: Balraj Singh | Citation: ENSDF | Cutoff date: 07-June-2023
Author: C. W. Reich | Citation: Nucl. Data Sheets 113, 157 (2012) | Cutoff date: 31-Dec-2010
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=5653 keV 12 | S(n)= 5520 keV 10 | S(p)= 10008 keV 10 | Q(α)= -3564 keV 20 | ||
| Reference: 2021WA16 |
| References: | |||
| A | 159Pm IT decay (4.97 μs) | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0.0 | A | (5/2-) | 1.634 s 42 % β- = 100 % β-n ≤ 0.6 | |||||
| 62.9 2 | A | (7/2-) | 62.8 3 | 100 | [M1+E2] | 0.0 | (5/2-) | |
| 144.4 2 | A | (9/2-) | 81.2 3 144.3 3 | 100 25 22 6 | [M1+E2] [E2] | 62.9 0.0 | (7/2-) (5/2-) | |
| 243.7 3 | A | (11/2-) | 99.0 3 180.9 3 | 100 19 23 5 | [M1+E2] [E2] | 144.4 62.9 | (9/2-) (7/2-) | |
| 313.5 3 | A | (5/2+) | 313.4 3 | 100 | 0.0 | (5/2-) | ||
| 363.0 3 | A | (13/2-) | 119.2 3 218.2 | 100 18 28 5 | [M1+E2] [E2] | 243.7 144.4 | (11/2-) (9/2-) | |
| 383.1 2 | A | (7/2+) | 69.6S 320.2 3 383.4 3 | 93 49 100 31 | [M1+E2] | 313.5 62.9 0.0 | (5/2+) (7/2-) (5/2-) | |
| 473.6 6 | A | (9/2+) | 159 330 | | 313.5 144.4 | (5/2+) (9/2-) | ||
| 495.4 3 | A | (15/2-) | 132.5 3 251.7 3 | 100 23 68 15 | [M1+E2] [E2] | 363.0 243.7 | (13/2-) (11/2-) | |
| 580.0 3 | A | (11/2+) | 106.4 197.2 3 435.2 3 | 100 16 28 7 | [M1+E2] [E2] | 473.6 383.1 144.4 | (9/2+) (7/2+) (9/2-) | |
| 654.1 4 | A | (17/2-) | 158.7 3 291.1 | 100 18 | [M1+E2] | 495.4 363.0 | (15/2-) (13/2-) | |
| 706.6 8 | A | (13/2+) | 233.0 | | 473.6 | (9/2+) | ||
| 850.6 4 | A | (15/2+) | 144.0 270.6 3 | 100 9 | [E2] | 706.6 580.0 | (13/2+) (11/2+) | |
| 933.2 3 | A | (11/2,9/2) | 788.8 3 870.5 3 | 100 19 | 144.4 62.9 | (9/2-) (7/2-) | ||
| 1164.8 3 | A | (15/2,13/2) | 231.8 3 669.4 3 801.7 3 921.2 3 | 23 7 37 4 100 7 90 7 | 933.2 495.4 363.0 243.7 | (11/2,9/2) (15/2-) (13/2-) (11/2-) | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 1495.0 3 | A | (17/2+) | 4.97 µs 12 % IT = 100 | 330.2 3 644.4 3 841.0 3 999.6 3 | 100 5 30.1 19 8.2 14 5.9 12 | [D,E2] [M1+E2] [E1] [E1] | 1164.8 850.6 654.1 495.4 | (15/2,13/2) (15/2+) (17/2-) (15/2-) |
E(level): From 159Pm IT decay (4.97 μs)
Jπ(level): As assigned by 2021Yo08, based on shell-model calculations, and systematics of neighboring nuclei.
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 1 - π5/2[532] band. | |||||||
| 0.0 | (5/2-) | 1.634 s 42 % β- = 100 % β-n ≤ 0.6 | |||||
| 62.9 2 | (7/2-) | 62.8 3 | 100 | [M1+E2] | 0.0 | (5/2-) | |
| 144.4 2 | (9/2-) | 81.2 3 144.3 3 | 100 25 22 6 | [M1+E2] [E2] | 62.9 0.0 | (7/2-) (5/2-) | |
| 243.7 3 | (11/2-) | 99.0 3 180.9 3 | 100 19 23 5 | [M1+E2] [E2] | 144.4 62.9 | (9/2-) (7/2-) | |
| 363.0 3 | (13/2-) | 119.2 3 218.2 | 100 18 28 5 | [M1+E2] [E2] | 243.7 144.4 | (11/2-) (9/2-) | |
| 495.4 3 | (15/2-) | 132.5 3 251.7 3 | 100 23 68 15 | [M1+E2] [E2] | 363.0 243.7 | (13/2-) (11/2-) | |
| 654.1 4 | (17/2-) | 158.7 3 291.1 | 100 18 | [M1+E2] | 495.4 363.0 | (15/2-) (13/2-) | |
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 2 - π5/2[413] band. | |||||||
| 313.5 3 | (5/2+) | ||||||
| 383.1 2 | (7/2+) | 69.6S 320.2 3 383.4 3 | 93 49 100 31 | [M1+E2] | 313.5 62.9 0.0 | (5/2+) (7/2-) (5/2-) | |
| 473.6 6 | (9/2+) | 159 330 | | 313.5 144.4 | (5/2+) (9/2-) | ||
| 580.0 3 | (11/2+) | 106.4 197.2 3 435.2 3 | 100 16 28 7 | [M1+E2] [E2] | 473.6 383.1 144.4 | (9/2+) (7/2+) (9/2-) | |
| 706.6 8 | (13/2+) | 233.0 | | 473.6 | (9/2+) | ||
| 850.6 4 | (15/2+) | 144.0 270.6 3 | 100 9 | [E2] | 706.6 580.0 | (13/2+) (11/2+) | |
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
| 62.9 | (7/2-) | 62.8 3 | [M1+E2] | 9 | α=9 4 | |
| 144.4 | (9/2-) | 81.2 3 | [M1+E2] | 3.8 | α=3.8 11 | |
| (9/2-) | 144.3 3 | [E2] | 0.617 | α=0.617 10 | ||
| 243.7 | (11/2-) | 99.0 3 | [M1+E2] | 2.0 | α=2.0 4 | |
| (11/2-) | 180.9 3 | [E2] | 0.284 | α=0.284 4 | ||
| 363.0 | (13/2-) | 119.2 3 | [M1+E2] | 1.07 | α=1.07 14 | |
| (13/2-) | 218.2 | [E2] | 0.1513 | α=0.1513 21 | ||
| 383.1 | (7/2+) | 69.6 | [M1+E2] | 6.5 | α=6.5 22 | |
| 495.4 | (15/2-) | 132.5 3 | [M1+E2] | 0.76 | α=0.76 7 | |
| (15/2-) | 251.7 3 | [E2] | 0.0948 | α=0.0948 14 | ||
| 580.0 | (11/2+) | 106.4 | [M1+E2] | 1.6 | α=1.6 3 | |
| (11/2+) | 197.2 3 | [E2] | 0.212 | α=0.212 3 | ||
| 654.1 | (17/2-) | 158.7 3 | [M1+E2] | 0.432 | α=0.432 14 | |
| 850.6 | (15/2+) | 270.6 3 | [E2] | 0.0751 | α=0.0751 11 | |
| 1495.0 | (17/2+) | 4.97 µs 12 % IT = 100 | 330.2 3 | [D,E2] | 0.035 | α=0.035 23 |
| (17/2+) | 4.97 µs 12 % IT = 100 | 644.4 3 | [M1+E2] | 0.0085 | α=0.0085 21 | |
| (17/2+) | 4.97 µs 12 % IT = 100 | 841.0 3 | [E1] | 1.37×10-3 | B(E1)(W.u.)=4.3E-12 7, α=1.37E-3 2 | |
| (17/2+) | 4.97 µs 12 % IT = 100 | 999.6 3 | [E1] | 9.83×10-4 | B(E1)(W.u.)=1.84E-12 37, α=9.83E-4 14 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0.0 | (5/2-) | 1.634 s 42 % β- = 100 % β-n ≤ 0.6 | Only the β- decay mode has been detected and expected, followed by possible β--delayed neutron decay. E(level): Only the β- decay mode has been detected and expected, followed by possible β--delayed neutron decay. π5/2[532] band. |
| 62.9 | (7/2-) | E(level): π5/2[532] band. | |
| 144.4 | (9/2-) | E(level): π5/2[532] band. | |
| 243.7 | (11/2-) | E(level): π5/2[532] band. | |
| 313.5 | (5/2+) | E(level): π5/2[413] band. | |
| 363.0 | (13/2-) | E(level): π5/2[532] band. | |
| 383.1 | (7/2+) | E(level): π5/2[413] band. | |
| 473.6 | (9/2+) | E(level): π5/2[413] band. | |
| 495.4 | (15/2-) | E(level): π5/2[532] band. | |
| 580.0 | (11/2+) | E(level): π5/2[413] band. | |
| 654.1 | (17/2-) | E(level): π5/2[532] band. | |
| 706.6 | (13/2+) | E(level): π5/2[413] band. | |
| 850.6 | (15/2+) | E(level): π5/2[413] band. | |
| 1495.0 | (17/2+) | 4.97 µs 12 % IT = 100 | Proposed configuration=π5/2[532]~#ν7/2[633]~#ν5/2[523] (2021Yo08). |
| E(level) | E(gamma) | Comments |
1998IcZZ, 2000IcZZ, 2001AsZY, 2003ShZU, 2005Ic02, 2006HaZT, 2007Ha57, 2010Ha32 (all from the same experimental group): 159Pm produced and identified in proton-induced fission of 238U with E(p)≈15 MeV and identified through mass separation and the genetic relationship to 159Sm at the Tokai-ISOL facility. Measured T1/2 of the decay of 159Pm and Q(β-) value.
2017Wu04: 159Pm nuclide produced at the RIBF-RIKEN facility in 9Be(238U,F),E=345 MeV/nucleon reaction. The identification of nuclide of interest was made in the BigRIPS separator by determining the atomic number and the α/Q ratio using the tof-Bρ-ΔE method. The reaction products were transported through the ZeroDegree Spectrometer and implanted into the beta-counting system WAS3ABi, surrounded by the EURICA array with 84 HPGe detectors. Measured T1/2 of the g.s. of 159Pm from (implants)β--, (implants)β-γ-, and (implants)γ-correlations.
2022Ki23: 159Pm nuclide was produced at the RIBF-RIKEN facility using the 9Be(238U,F),E(238U)=345 MeV/nucleon, followed by separation of fission fragments by measuring the energy loss (ΔE), magnetic rigidity (Bρ) and time-of-flight (tof) of the ions using the BigRIPS separator, multisampling ionization chambers (MUSIC), and parallel-plate avalanche counters (PPACs), and plastic scintillators. The radioactive ions were implanted in the Advanced Implantation Detector Array (AIDA) consisting of a stack of six double-sided silicon strip detectors (DSSSDs), and centered in the BRIKEN neutron detector consisting of 140 3He-filled proportional counters embedded in a large polyethylene moderator matrix. For γ and nγ-coin detection, two CLARION-type clover HPGe detectors were used, but γ data were not analyzed in the present experiment. Measured (implanted ions)(β-) correlations, and (implanted ions)(β-)(neutron) correlations. Deduced half-life and %β-n for the decay of 159Pm.
2012Va02: measured mass of the g.s. from cyclotron frequency ratios using the Canadian Penning Trap mass spectrometer at the CARIBU-ANL facility.
2020Ra13: theory: calculated levels, Jπ, band, B(E2), B(M1) using projected shell model
Q-value: Q(β-n)=626 11, S(2n)=10400 12, S(2p)=22697 11 (2021Wa16)
Q-value: Q(β-)=5.66 MeV 10, measured by 2003ShZU (also 2007Ha57) from total-absorption γ spectroscopy using a BGO detector