ADOPTED LEVELS, GAMMAS for 100Cd
Authors: Balraj Singh and Jun Chen | Citation: Nucl. Data Sheets 172, 1 (2021) | Cutoff date: 31-Jan-2021
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=-10016.4 keV 28 | S(n)= 12334.8 keV 23 | S(p)= 4771 keV 6 | Q(α)= -436 keV 5 | ||
| Reference: 2021WA16 |
| References: | |||
| A | 100In ε decay (5.65 S) | B | 101Sn εp decay (2.20 S) |
| C | 1H(102Cd,100CDG) | D | 46Ti(58Ni,2P2NG) |
| E | 64Zn(40Ca,2P2NG) | F | Coulomb Excitation |
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0.0 | ABCDEF | 0+ | 49.1 s 5 % ε = 100 | |||||
| 1004.11 10 | ABCDEF | 2+ | > 1.0 ps | 1004.1 1 | 100 | (E2) | 0.0 | 0+ |
| 1799.00 14 | A CDE | (4+) | 794.95 10 | 100 | 1004.11 | 2+ | ||
| 1930 20 ? | C | (2+) | 1930 20 ? | 100 | 0.0 | 0+ | ||
| 2046.24 15 | A D | (4+) | 247.3 1 1042.1 2 | 25 13 100 25 | 1799.00 1004.11 | (4+) 2+ | ||
| 2095.40 17 | A DE | (6+) | 296.4 2 | 100 | 1799.00 | (4+) | ||
| 2457.69 17 | A D | (6+) | 362.6 2 411.5 1 658.4 2 | 100 8 32 4 45 5 | 2095.40 2046.24 1799.00 | (6+) (4+) (4+) | ||
| 2548.19 18 | A DE | (8+) | 62 ns 6 | 90.7 1 452.6 1 | 4.6 20 100 3 | [E2] [E2] | 2457.69 2095.40 | (6+) (6+) |
| 3163.96 25 | A | (4+,5,6+) | 1068.5 2 1365.3 5 | 100 14 86 17 | 2095.40 1799.00 | (6+) (4+) | ||
| 3199.5 3 | A | (8+) | 1104.1 2 | 100 | 2095.40 | (6+) | ||
| 3656.8 3 | D | (10+) | 1108.6 2 | 100 | Q | 2548.19 | (8+) | |
| 4118.5 3 | D | (11+) | 461.7 1 | 100 | D | 3656.8 | (10+) | |
| 4344.3 3 | D | (12+) | 225.8 1 | 100 | D | 4118.5 | (11+) | |
| 4855.3 4 | D | (12) | 736.8 2 | 100 | D | 4118.5 | (11+) | |
| 5319.3 9 | D | (12) | 1200.7 10 | 100 | 4118.5 | (11+) | ||
| 5508.0 4 | D | (14) | 1163.7 3 | 100 | Q | 4344.3 | (12+) | |
| 6258.7 5 | D | (14) | 750.7 3 1914.4 12 | 100 5 22 4 | D | 5508.0 4344.3 | (14) (12+) | |
| 6460.5 10 | D | (13) | 1141.1 9 2116.3 12 | 33 5 100 15 | D D | 5319.3 4344.3 | (12) (12+) | |
| 6953.4 5 | D | (14) | 1445.8 10 2098.7 7 2609.1 4 | 8.8 18 29 4 100.0 23 | Q Q | 5508.0 4855.3 4344.3 | (14) (12) (12+) | |
| 6978.3 10 | D | (14) | 517.8 1 | 100 | D | 6460.5 | (13) | |
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 7172.1 10 | D | (15) | 193.8 1 | 100 | D | 6978.3 | (14) | |
| 7365.0 6 | D | (14) | 2508.4 9 | 100 | Q | 4855.3 | (12) | |
| 7747.9 5 | D | (15) | 794.5 2 | 100 | D | 6953.4 | (14) | |
| 7910.8 5 | D | (16) | 545.8 2 1652.2 11 | 100 5 68 8 | Q | 7365.0 6258.7 | (14) (14) | |
| 8349.5 5 | D | (17) | 601.6 2 | 100 | Q | 7747.9 | (15) | |
| 8560.4 5 | D | (17) | 649.5 2 812.6 3 | 68 4 100 4 | D Q | 7910.8 7747.9 | (16) (15) | |
| 8823.4 5 | D | (18) | 474.0 1 | 100 | D | 8349.5 | (17) | |
| 8947.3 5 | D | (18) | 386.9 1 596.9 6 | 100 4 34 9 | D (D) | 8560.4 8349.5 | (17) (17) | |
| 9388.2 5 | D | (20) | 440.8 2 564.9 2 | 100 4 76 4 | Q Q | 8947.3 8823.4 | (18) (18) | |
E(level): From least-squares fit to Eγ data; normalized χ2=1.5. Many low-spin (J<8) levels are suggested above 3200 keV by the total-absorption gamma-ray (TAS) measurements. See 100In ε decay for a list of 25 such groups (named as pseudo-levels) in 200 keV intervals from 3600 to 8400 keV.
Jπ(level): For high-spin (J>8), ascending order of spins with excitation energy is assumed according to the trend of population of yrast states in 46Ti(58Ni,2p2nγ) and 64Zn(40Ca,2p2nγ) studies.
M(γ): From γ(θ) data in (58Ni,2p2nγ), unless otherwise noted. mult=Q represents ΔJ=2, quadrupole and d represents ΔJ=1, dipole (quadrupole admixture is generally expected), except for one case where d is for ΔJ=0
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 1 - g.s. band, yrast cascade | |||||||
| 0.0 | 0+ | 49.1 s 5 % ε = 100 | |||||
| 1004.11 10 | 2+ | > 1.0 ps | 1004.1 1 | 100 | (E2) | 0.0 | 0+ |
| 1799.00 14 | (4+) | 794.95 10 | 100 | 1004.11 | 2+ | ||
| 2095.40 17 | (6+) | 296.4 2 | 100 | 1799.00 | (4+) | ||
| 2548.19 18 | (8+) | 62 ns 6 | 90.7 1 452.6 1 | 4.6 20 100 3 | [E2] [E2] | 2457.69 2095.40 | (6+) (6+) |
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 2 - γ cascade based on (14) | |||||||
| 6953.4 5 | (14) | ||||||
| 7747.9 5 | (15) | 794.5 2 | 100 | D | 6953.4 | (14) | |
| 8349.5 5 | (17) | 601.6 2 | 100 | Q | 7747.9 | (15) | |
| 8823.4 5 | (18) | 474.0 1 | 100 | D | 8349.5 | (17) | |
| 9388.2 5 | (20) | 440.8 2 564.9 2 | 100 4 76 4 | Q Q | 8947.3 8823.4 | (18) (18) | |
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 3 - γ cascade based on (14) | |||||||
| 7365.0 6 | (14) | ||||||
| 7910.8 5 | (16) | 545.8 2 1652.2 11 | 100 5 68 8 | Q | 7365.0 6258.7 | (14) (14) | |
| 8560.4 5 | (17) | 649.5 2 812.6 3 | 68 4 100 4 | D Q | 7910.8 7747.9 | (16) (15) | |
| 8947.3 5 | (18) | 386.9 1 596.9 6 | 100 4 34 9 | D (D) | 8560.4 8349.5 | (17) (17) | |
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
| 1004.11 | 2+ | > 1.0 ps | 1004.1 1 | (E2) | B(E2)(W.u.)<20 | |
| 2548.19 | (8+) | 62 ns 6 | 90.7 1 | [E2] | 2.12 | B(E2)(W.u.)=2.2 +12-10, α=2.12 3 |
| (8+) | 62 ns 6 | 452.6 1 | [E2] | B(E2)(W.u.)=0.0152 17 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0.0 | 0+ | 49.1 s 5 % ε = 100 | Measured isotope shift ν(114Cd,100Cd)=6371.6 MHz 31(stat) 114(syst) (2018Ha30, high-resolution collinear laser spectroscopy at ISOLDE-CERN). E(level): Measured isotope shift ν(114Cd,100Cd)=6371.6 MHz 31(stat) 114(syst) (2018Ha30, high-resolution collinear laser spectroscopy at ISOLDE-CERN). Jπ(level): Yrast states based on the g.s. and systematics of even-even nuclei near closed shells; proposed by 2002Pl03 in 100In ε decay (5.8 s). |
| 1004.11 | 2+ | > 1.0 ps | B(E2) and comment edited, T1/2 revised, B. Singh, Sept 15, 2021, in response to e-mail query of Aug 18, 2021 from Dr. M.L. Cortes (t.U. Darmstadt). Jπ(level): Yrast states based on the g.s. and systematics of even-even nuclei near closed shells; proposed by 2002Pl03 in 100In ε decay (5.8 s). |
| 1799.00 | (4+) | XREF: C(1764). Jπ(level): Yrast states based on the g.s. and systematics of even-even nuclei near closed shells; proposed by 2002Pl03 in 100In ε decay (5.8 s). | |
| 2095.40 | (6+) | Jπ(level): Yrast states based on the g.s. and systematics of even-even nuclei near closed shells; proposed by 2002Pl03 in 100In ε decay (5.8 s). | |
| 2548.19 | (8+) | 62 ns 6 | μ=9.9 5 (1992Al17,2020StZV) Proposed configuration=πg9/2-2, consistent with measured g factor (1992Al17). Jπ(level): Yrast states based on the g.s. and systematics of even-even nuclei near closed shells; proposed by 2002Pl03 in 100In ε decay (5.8 s). |
| 6953.4 | (14) | E(level): γ cascade based on (14). | |
| 7365.0 | (14) | E(level): γ cascade based on (14). | |
| 7747.9 | (15) | E(level): γ cascade based on (14). | |
| 7910.8 | (16) | E(level): γ cascade based on (14). | |
| 8349.5 | (17) | E(level): γ cascade based on (14). | |
| 8560.4 | (17) | E(level): γ cascade based on (14). | |
| 8823.4 | (18) | E(level): γ cascade based on (14). | |
| 8947.3 | (18) | E(level): γ cascade based on (14). | |
| 9388.2 | (20) | E(level): γ cascade based on (14). |
| E(level) | E(gamma) | Comments |
| 1004.11 | 1004.1 | E(γ): weighted average of 1004.1 1 from 100In ε decay (5.8 s), 1004.2 2 from (58Ni,2p2nγ), and 1004.03 17 from (40Ca,2p2nγ). Other: 1004 15 from (102Cd,100Cdγ) M(γ): supported by γ(θ) in (40Ca,2p2nγ) and level scheme |
| 1799.00 | 794.95 | E(γ): weighted average of 794.9 1 from 100In ε decay (5.8 s), 795.1 2 from (58Ni,2p2nγ), and 795.02 21 from (40Ca,2p2nγ). Other: 760 15 from (102Cd,100Cdγ) |
| 1930 | 1930 | E(γ): from (102Cd,100Cdγ) only |
| 2046.24 | 1042.1 | E(γ): weighted average of 1041.9 2 from 100In ε decay (5.8 s) and 1042.3 2 from (58Ni,2p2nγ) |
| 2095.40 | 296.4 | E(γ): unweighted average of 296.8 1 from 100In ε decay (5.8 s), 296.1 1 from (58Ni,2p2nγ), and 296.27 17 from (40Ca,2p2nγ) |
| 2457.69 | 362.6 | E(γ): unweighted average of 362.7 1 from 100In ε decay (5.8 s) and 362.4 1 from (58Ni,2p2nγ) I(γ): other: 100 11 from 100In ε decay. weighted average of 31 5 from 100In ε decay (5.8 s) and 32 4 from (58Ni,2p2nγ) | 411.5 | E(γ): weighted average of 411.7 3 from 100In ε decay (5.8 s) and 411.5 1 from (58Ni,2p2nγ) | 658.4 | E(γ): weighted average of 658.2 3 from 100In ε decay (5.8 s) and 658.5 2 from (58Ni,2p2nγ) I(γ): weighted average of 47 5 from 100In ε decay (5.8 s) and 43 5 from (58Ni,2p2nγ) |
| 2548.19 | 90.7 | E(γ): also from 100In ε decay (5.8 s) | 452.6 | E(γ): weighted average of 452.8 1 from 100In ε decay (5.8 s), 452.5 1 from (58Ni,2p2nγ), and 452.56 17 from (40Ca,2p2nγ) |
| 6258.7 | 750.7 | M(γ): ΔJ=0 transition |
Updates on Sept 15, 2021: Q values and particle-separation energies updated from 2021Wi16; T1/2 and B(E2)(W.u.) corrected for the first 2+ level. Evaluated magnetic dipole moment from 2020StZV evaluation included. No new experimental papers on the structure on 100Cd since Jan 31, 2021 update. B(E2) and T1/2 were revised in response to e-mail query of Aug 18, 2021 from Dr. M.L. Cortes (t.U. Darmstadt)
Other measurements:
1975HaXF, 1969HaZU: 92Mo(12C,4nγ) E=70-95 MeV, measured γ
Mass measurements: 2009Br09 (Penning-trap method), 1996Ch32 (also 1996Ch26,1997Le36,1997Mi07). In 1996Ch32, 100Ag used as a standard
Theory references: consult the NSR database (www.nndc.bnl.gov/nsr/) for 36 primary references, 30 dealing with nuclear structure calculations and six with decay modes and half-lives.
Q-value: S(2n)=22700 50, S(2p)=7452 5, Q(ε)=3943 5, Q(εp)=699 5 (2021Wa16)