ADOPTED LEVELS, GAMMAS for 68Se
Author: E.A. Mccutchan | Citation: Nucl. Data Sheets 113, 1735 (2012) | Cutoff date: 1-Mar-2012
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=-1.57×104 keV SY | S(n)= 1.568×104 keV 7 | S(p)= 4891.2 keV 7 | Q(α)= -2299 keV 4 | ||
Reference: 2012WA38 |
References: | |||
A | 12C(58Ni,2nγ) | B | 58Ni(12C,2nγ) |
C | 40Ca(36Ar,2αγ) | D | Coulomb Excitation |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
0 | ABCD | 0+ | 35.5 s 7 % ε = 100 | |||||
853.75 21 | ABCD | 2+ | 2.8 ps 4 | 853.71 22 | 100 | E2 | 0 | 0+ |
1196.7 10 ? | B | (2+) | 343? | 100 | 853.75 | 2+ | ||
1593.9 5 | A C | 2+ | 740 1 1594 1 | | 853.75 0 | 2+ 0+ | ||
1942.1 3 | ABC | 4+ | 1088.3 2 | 100 | Q | 853.75 | 2+ | |
2433.3 8 | A | 2433 | 100 | 0 | 0+ | |||
2545.1 4 | ABC | 4+ | 602? 951.1 5 1691.7 5 | <23 100 23 | 1942.1 1593.9 853.75 | 4+ 2+ 2+ | ||
2766.0 9 ? | B | (6+) | 823.9 8 ? | 100 | 1942.1 | 4+ | ||
3073.5 8 | A | 640 2220 | | 2433.3 853.75 | 2+ | |||
3303.7 4 | A C | 6+ | 1361.5 3 | 100 | Q | 1942.1 | 4+ | |
3571.2 8 | AB | (5-) | 1629.1 7 | 100 | 1942.1 | 4+ | ||
3705.7 4 | A C | 6+ | 1160.7 3 1764 1 | 100 22 74 22 | Q | 2545.1 1942.1 | 4+ 4+ | |
4198.5 10 | AB | (7-) | 627.3 6 | 100 | 3571.2 | (5-) | ||
4752.3 4 | A C | 8+ | 1046.7 3 1448.5 3 | 75 31 100 17 | Q Q | 3705.7 3303.7 | 6+ 6+ | |
4870.7 11 | A | 8+ | 1567 | 100 | 3303.7 | 6+ | ||
5959.7 5 | A C | 10+ | 1207.4 3 | 100 | Q | 4752.3 | 8+ | |
6603.8 15 ? | A | 10+ | 1733? | 100 | 4870.7 | 8+ | ||
7331.8 6 | A C | 12+ | 1372.0 3 | 100 | Q | 5959.7 | 10+ | |
8823.7 7 | A C | 14+ | 1491.9 3 | 100 | Q | 7331.8 | 12+ | |
9871.4 8 | C | 16+ | 1047.7 5 | 100 | Q | 8823.7 | 14+ | |
11040.0 9 | C | 18+ | 1168.6 3 | 100 | Q | 9871.4 | 16+ | |
12797.1 10 | C | (20+) | 1757.1 5 | 100 | 11040.0 | 18+ | ||
15185.2 22 | C | (22+) | 2388 2 | 100 | 12797.1 | (20+) | ||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
18075 4 | C | (24+) | 2890 3 | 100 | 15185.2 | (22+) | ||
21201 5 ? | C | (26+) | 3126 4 ? | 100 | 18075 | (24+) |
E(level): From least-squares fit to Eγ’s, by evaluator; ΔE=1 keV assumed for γ’s where uncertainty is not stated.
Jπ(level): From 40Ca(36Ar,2αγ), except where noted. Based on γ(θ) and assumed band structure.
E(γ): From 40Ca(36Ar,2αγ), except where noted.
I(γ): Relative intensity branches from 40Ca(36Ar,2αγ)
M(γ): From γ(θ) in 40Ca(36Ar,2αγ)
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 1 - GS band (OBLATE). | |||||||
0 | 0+ | 35.5 s 7 % ε = 100 | |||||
853.75 21 | 2+ | 2.8 ps 4 | 853.71 22 | 100 | E2 | 0 | 0+ |
1942.1 3 | 4+ | 1088.3 2 | 100 | Q | 853.75 | 2+ | |
3303.7 4 | 6+ | 1361.5 3 | 100 | Q | 1942.1 | 4+ | |
4870.7 11 | 8+ | 1567 | 100 | 3303.7 | 6+ | ||
6603.8 15 | 10+ | 1733? | 100 | 4870.7 | 8+ | ||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 2 - SIDE band (PROLATE). | |||||||
1593.9 5 | 2+ | ||||||
2545.1 4 | 4+ | 602? 951.1 5 1691.7 5 | <23 100 23 | 1942.1 1593.9 853.75 | 4+ 2+ 2+ | ||
3705.7 4 | 6+ | 1160.7 3 1764 1 | 100 22 74 22 | Q | 2545.1 1942.1 | 4+ 4+ | |
4752.3 4 | 8+ | 1046.7 3 1448.5 3 | 75 31 100 17 | Q Q | 3705.7 3303.7 | 6+ 6+ | |
5959.7 5 | 10+ | 1207.4 3 | 100 | Q | 4752.3 | 8+ | |
7331.8 6 | 12+ | 1372.0 3 | 100 | Q | 5959.7 | 10+ | |
8823.7 7 | 14+ | 1491.9 3 | 100 | Q | 7331.8 | 12+ | |
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 3 - Band based on 18+ level | |||||||
11040.0 9 | 18+ | ||||||
12797.1 10 | (20+) | 1757.1 5 | 100 | 11040.0 | 18+ | ||
15185.2 22 | (22+) | 2388 2 | 100 | 12797.1 | (20+) | ||
18075 4 | (24+) | 2890 3 | 100 | 15185.2 | (22+) | ||
21201 5 | (26+) | 3126 4 ? | 100 | 18075 | (24+) |
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
853.75 | 2+ | 2.8 ps 4 | 853.71 22 | E2 | 0.000618 | B(E2)(W.u.)=27 4, α=0.000618 9, α(K)=0.000550 8, α(L)=5.79E-5 9, α(M)=9.00E-6 13, α(N+)=7.65E-7 11 |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
0 | 0+ | 35.5 s 7 % ε = 100 | E(level): GS band (OBLATE). |
853.75 | 2+ | 2.8 ps 4 | B(E2)=0.22 3 E(level): GS band (OBLATE). |
1196.7 | (2+) | E(level): From 58Ni(12C,2nγ). Jπ(level): Suggested from systematics of neighboring even-even nuclei (1998Sk02). | |
1593.9 | 2+ | E(level): SIDE band (PROLATE). | |
1942.1 | 4+ | E(level): GS band (OBLATE). | |
2545.1 | 4+ | E(level): SIDE band (PROLATE). | |
2766.0 | (6+) | E(level): From 58Ni(12C,2nγ). Jπ(level): Suggested from systematics of neighboring even-even nuclei (1998Sk02). | |
3303.7 | 6+ | E(level): GS band (OBLATE). | |
3571.2 | (5-) | E(level): From 58Ni(12C,2nγ). Jπ(level): Suggested from systematics of neighboring even-even nuclei (1998Sk02). | |
3705.7 | 6+ | E(level): SIDE band (PROLATE). | |
4198.5 | (7-) | E(level): From 58Ni(12C,2nγ). Jπ(level): Suggested from systematics of neighboring even-even nuclei (1998Sk02). | |
4752.3 | 8+ | E(level): SIDE band (PROLATE). | |
4870.7 | 8+ | E(level): GS band (OBLATE). | |
5959.7 | 10+ | E(level): SIDE band (PROLATE). | |
6603.8 | 10+ | E(level): GS band (OBLATE). | |
7331.8 | 12+ | E(level): SIDE band (PROLATE). | |
8823.7 | 14+ | E(level): SIDE band (PROLATE). | |
11040.0 | 18+ | E(level): Band based on 18+ level. | |
12797.1 | (20+) | E(level): Band based on 18+ level. | |
15185.2 | (22+) | E(level): Band based on 18+ level. | |
18075 | (24+) | E(level): Band based on 18+ level. | |
21201 | (26+) | E(level): Band based on 18+ level. |
E(level) | E(gamma) | Comments |
853.75 | 853.71 | E(γ): from weighted average of 853.9 3 (1990Li25), 854.2 3 (1998Sk02), and 853.4 2 (2003Fi07). |
1196.7 | 343 | E(γ): From 58Ni(12C,2nγ) |
2433.3 | 2433 | E(γ): From 12C(58Ni,2nγ) |
2545.1 | 602 | E(γ): From 12C(58Ni,2nγ) |
2766.0 | 823.9 | E(γ): From 58Ni(12C,2nγ) |
3073.5 | 640 | E(γ): From 12C(58Ni,2nγ) | 2220 | E(γ): From 12C(58Ni,2nγ) |
3571.2 | 1629.1 | E(γ): From 58Ni(12C,2nγ) |
4198.5 | 627.3 | E(γ): From 58Ni(12C,2nγ) |