ADOPTED LEVELS, GAMMAS for 143Cs
Authors: E. Browne, J. K. Tuli | Citation: Nucl. Data Sheets 113, 715 (2012) | Cutoff date: 31-May-2011
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=6263 keV 22 | S(n)= 5227 keV 23 | S(p)= 9733 keV 23 | Q(α)= -1.64×103 keV 4 | ||
Reference: 2012WA38 |
References: | |||
A | 143Xe β- decay | B | 248Cm,252Cf SF decay |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
0 | AB | 3/2+ | 1.791 s 7 % β- = 100 % β-n = 1.64 7 | |||||
76.6 3 | B | 5/2+ | 76.5 | 100 | (M1) | 0 | 3/2+ | |
90.3 3 | AB | 7/2+ | 90.4 | 100 | [E2] | 0 | 3/2+ | |
349.1 3 | B | 9/2+ | 258.8 272.5 | 45 4 100 6 | (M1) E2 | 90.3 76.6 | 7/2+ 5/2+ | |
372.4 4 | B | 11/2+ | 282.0 | 100 5 | 90.3 | 7/2+ | ||
755.9 4 | B | 13/2+ | 383.6 406.8 | 26 3 100 7 | M1+E2 | 372.4 349.1 | 11/2+ 9/2+ | |
769.1 4 | B | 15/2+ | 396.6 | 100 | E2 | 372.4 | 11/2+ | |
816.6 4 | B | 9/2- | 726.3 | 100 | (E1) | 90.3 | 7/2+ | |
872.6 4 | B | 11/2- | 500.3 523.5 | 77 8 100 17 | E1 | 372.4 349.1 | 11/2+ 9/2+ | |
1072.1 4 | B | 13/2- | 255.5 699.8 | 100 | E2 | 816.6 372.4 | 9/2- 11/2+ | |
1155.6 4 | B | 15/2- | 83.5 283.0 399.6 | 88 13 100 2 | E2 E1 | 1072.1 872.6 755.9 | 13/2- 11/2- 13/2+ | |
1182.3 4 | B | 13/2 | 809.9 | 100 | E1,M1 | 372.4 | 11/2+ | |
1253.9 4 | B | 19/2+ | 484.8 | 100 | E2 | 769.1 | 15/2+ | |
1254.7 4 | B | 17/2+ | 485.5 498.9 | 23 3 100 13 | E2 | 769.1 755.9 | 15/2+ 13/2+ | |
1398.0 4 | B | 17/2- | 325.9 628.8 | 100 | E2 E1 | 1072.1 769.1 | 13/2- 15/2+ | |
1549.9 4 | B | 19/2- | 152 295.0 394.4 | 3 1 11 2 100 11 | 1398.0 1254.7 1155.6 | 17/2- 17/2+ 15/2- | ||
1558.7 4 | B | 17/2 | 376.5 789.7 | 8 2 100 10 | M1,E1 | 1182.3 769.1 | 13/2 15/2+ | |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
1803.1 4 | B | 21/2- | 404.9 549.3 | 100 | (E2) | 1398.0 1253.9 | 17/2- 19/2+ | |
1805.1 5 | B | 23/2+ | 551.2 | 100 | E2 | 1253.9 | 19/2+ | |
1812.6 4 | B | 21/2+ | 557.9 558.7 | 100 10 40 10 | E2 | 1254.7 1253.9 | 17/2+ 19/2+ | |
2032.4 5 | B | (23/2-) | 482.5 | 100 | 1549.9 | 19/2- | ||
2052.8 5 | B | (21/2) | 494.1 798.8 | 100 16 40 8 | 1558.7 1253.9 | 17/2 19/2+ | ||
2294.1 5 | B | (25/2-) | 489.0 490.9 | 100 | 1805.1 1803.1 | 23/2+ 21/2- | ||
2424.1 6 | B | 27/2+ | 619.0 | 100 | E2 | 1805.1 | 23/2+ | |
2427.7 5 | B | 25/2+ | 615.3 622.5 | 100 15 40 15 | E2 | 1812.6 1805.1 | 21/2+ 23/2+ | |
2581.1 6 | B | 548.7 | 100 | 2032.4 | (23/2-) | |||
2627.1 6 | B | 574.3 | 100 | 2052.8 | (21/2) | |||
2860.8 6 | B | 566.7 | 100 | 2294.1 | (25/2-) | |||
3086.8 6 | B | 659.0 | 100 | 2427.7 | 25/2+ | |||
3118.1 6 | B | 694.0 | 100 | 2424.1 | 27/2+ |
E(level): Deduced by evaluators from least-squares fit to γ-ray energies assuming 0.3 keV uncertainty for each γ ray.
Jπ(level): Jπ assignments are from 248Cm SF decay (2004Ur01), based on γ-ray multipolarities and rotational-band structure.
M(γ): From angular correlation and linear polarization coefficients measured in 248Cm SF decay.
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 1 - GS ROTATIONAL band | |||||||
0 | 3/2+ | 1.791 s 7 % β- = 100 % β-n = 1.64 7 | |||||
90.3 3 | 7/2+ | 90.4 | 100 | [E2] | 0 | 3/2+ | |
372.4 4 | 11/2+ | 282.0 | 100 5 | 90.3 | 7/2+ | ||
769.1 4 | 15/2+ | 396.6 | 100 | E2 | 372.4 | 11/2+ | |
1253.9 4 | 19/2+ | 484.8 | 100 | E2 | 769.1 | 15/2+ | |
1805.1 5 | 23/2+ | 551.2 | 100 | E2 | 1253.9 | 19/2+ | |
2424.1 6 | 27/2+ | 619.0 | 100 | E2 | 1805.1 | 23/2+ | |
3118.1 6 | 694.0 | 100 | 2424.1 | 27/2+ | |||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 2 - 5/2+ ROTATIONAL band | |||||||
76.6 3 | 5/2+ | ||||||
349.1 3 | 9/2+ | 258.8 272.5 | 45 4 100 6 | (M1) E2 | 90.3 76.6 | 7/2+ 5/2+ | |
755.9 4 | 13/2+ | 383.6 406.8 | 26 3 100 7 | M1+E2 | 372.4 349.1 | 11/2+ 9/2+ | |
1254.7 4 | 17/2+ | 485.5 498.9 | 23 3 100 13 | E2 | 769.1 755.9 | 15/2+ 13/2+ | |
1812.6 4 | 21/2+ | 557.9 558.7 | 100 10 40 10 | E2 | 1254.7 1253.9 | 17/2+ 19/2+ | |
2427.7 5 | 25/2+ | 615.3 622.5 | 100 15 40 15 | E2 | 1812.6 1805.1 | 21/2+ 23/2+ | |
3086.8 6 | 659.0 | 100 | 2427.7 | 25/2+ | |||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 3 - 9/2- (octupole) VIBRATIONAL band | |||||||
816.6 4 | 9/2- | ||||||
1072.1 4 | 13/2- | 255.5 699.8 | 100 | E2 | 816.6 372.4 | 9/2- 11/2+ | |
1398.0 4 | 17/2- | 325.9 628.8 | 100 | E2 E1 | 1072.1 769.1 | 13/2- 15/2+ | |
1803.1 4 | 21/2- | 404.9 549.3 | 100 | (E2) | 1398.0 1253.9 | 17/2- 19/2+ | |
2294.1 5 | (25/2-) | 489.0 490.9 | 100 | 1805.1 1803.1 | 23/2+ 21/2- | ||
2860.8 6 | 566.7 | 100 | 2294.1 | (25/2-) | |||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 4 - 11/2- (octupole) VIBRATIONAL band | |||||||
872.6 4 | 11/2- | ||||||
1155.6 4 | 15/2- | 83.5 283.0 399.6 | 88 13 100 2 | E2 E1 | 1072.1 872.6 755.9 | 13/2- 11/2- 13/2+ | |
1549.9 4 | 19/2- | 152 295.0 394.4 | 3 1 11 2 100 11 | 1398.0 1254.7 1155.6 | 17/2- 17/2+ 15/2- | ||
2032.4 5 | (23/2-) | 482.5 | 100 | 1549.9 | 19/2- | ||
2581.1 6 | 548.7 | 100 | 2032.4 | (23/2-) | |||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 5 - (13/2) band | |||||||
1182.3 4 | 13/2 | ||||||
1558.7 4 | 17/2 | 376.5 789.7 | 8 2 100 10 | M1,E1 | 1182.3 769.1 | 13/2 15/2+ | |
2052.8 5 | (21/2) | 494.1 798.8 | 100 16 40 8 | 1558.7 1253.9 | 17/2 19/2+ | ||
2627.1 6 | 574.3 | 100 | 2052.8 | (21/2) |
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
76.6 | 5/2+ | 76.5 | (M1) | 1.94 | α=1.94, α(K)=1.662 24, α(L)=0.222 4, α(M)=0.0455 7, α(N)=0.00962 14, α(O)=0.001336 19, α(P)=6.54×10-5 10, α(N+)=0.01102 16 | |
90.3 | 7/2+ | 90.4 | [E2] | 2.67 | α=2.67, α(K)=1.643 23, α(L)=0.815 12, α(M)=0.1766 25, α(N)=0.0358 5, α(O)=0.00417 6, α(P)=4.47×10-5 7, α(N+)=0.0400 6 | |
349.1 | 9/2+ | 258.8 | (M1) | 0.0656 | α=0.0656, α(K)=0.0564 8, α(L)=0.00734 11, α(M)=0.001501 21, α(N)=0.000317 5, α(O)=4.43×10-5 7, α(P)=2.20E-6 3, α(N+)=0.000364 5 | |
9/2+ | 272.5 | E2 | 0.0593 | α=0.0593, α(K)=0.0482 7, α(L)=0.00887 13, α(M)=0.00186 3, α(N)=0.000384 6, α(O)=4.95×10-5 7, α(P)=1.613E-6 23, α(N+)=0.000435 6 | ||
755.9 | 13/2+ | 383.6 | M1+E2 | 0.0219 | α=0.0219 17, α(K)=0.0186 18, α(L)=0.00266 6, α(M)=0.000547 16, α(N)=0.000115 3, α(O)=1.56×10-5 3, α(P)=6.9E-7 10, α(N+)=0.000131 3 | |
769.1 | 15/2+ | 396.6 | E2 | 0.0183 | α=0.0183, α(K)=0.01529 22, α(L)=0.00242 4, α(M)=0.000502 7, α(N)=0.0001047 15, α(O)=1.387×10-5 20, α(P)=5.38E-7 8, α(N+)=0.0001191 17 | |
816.6 | 9/2- | 726.3 | (E1) | 0.001362 | α=0.001362 19, α(K)=0.001180 17, α(L)=0.0001453 21, α(M)=2.95×10-5 5, α(N)=6.22E-6 9, α(O)=8.66E-7 13, α(P)=4.28E-8 6, α(N+)=7.13E-6 | |
872.6 | 11/2- | 523.5 | E1 | 0.00279 | α=0.00279 4, α(K)=0.00241 4, α(L)=0.000300 5, α(M)=6.09×10-5 9, α(N)=1.285E-5 18, α(O)=1.780E-6 25, α(P)=8.66E-8 13, α(N+)=1.471E-5 21 | |
1072.1 | 13/2- | 255.5 | E2 | 0.0733 | α=0.0733, α(K)=0.0591 9, α(L)=0.01123 16, α(M)=0.00236 4, α(N)=0.000487 7, α(O)=6.24×10-5 9, α(P)=1.96E-6 3, α(N+)=0.000552 8 | |
1155.6 | 15/2- | 283.0 | E2 | 0.0525 | α=0.0525, α(K)=0.0427 6, α(L)=0.00773 11, α(M)=0.001617 23, α(N)=0.000335 5, α(O)=4.33×10-5 6, α(P)=1.440E-6 21, α(N+)=0.000380 6 | |
15/2- | 399.6 | E1 | 0.00528 | α=0.00528 8, α(K)=0.00457 7, α(L)=0.000574 8, α(M)=0.0001166 17, α(N)=2.45×10-5 4, α(O)=3.39E-6 5, α(P)=1.621E-7 23, α(N+)=2.81E-5 4 | ||
1253.9 | 19/2+ | 484.8 | E2 | 0.01026 | α=0.01026, α(K)=0.00864 12, α(L)=0.001287 18, α(M)=0.000266 4, α(N)=5.56×10-5 8, α(O)=7.46E-6 11, α(P)=3.10E-7 5, α(N+)=6.34E-5 9 | |
1254.7 | 17/2+ | 498.9 | E2 | 0.00947 | α=0.00947 14, α(K)=0.00799 12, α(L)=0.001181 17, α(M)=0.000244 4, α(N)=5.10×10-5 8, α(O)=6.85E-6 10, α(P)=2.87E-7 4, α(N+)=5.81E-5 9 | |
1398.0 | 17/2- | 325.9 | E2 | 0.0335 | α=0.0335, α(K)=0.0276 4, α(L)=0.00469 7, α(M)=0.000977 14, α(N)=0.000203 3, α(O)=2.65×10-5 4, α(P)=9.47E-7 14, α(N+)=0.000230 4 | |
17/2- | 628.8 | E1 | 0.00185 | α=0.00185 3, α(K)=0.001603 23, α(L)=0.000198 3, α(M)=4.02×10-5 6, α(N)=8.49E-6 12, α(O)=1.179E-6 17, α(P)=5.79E-8 9, α(N+)=9.73E-6 14 | ||
1805.1 | 23/2+ | 551.2 | E2 | 0.00721 | α=0.00721 10, α(K)=0.00611 9, α(L)=0.000881 13, α(M)=0.000181 3, α(N)=3.80×10-5 6, α(O)=5.14E-6 8, α(P)=2.21E-7 3, α(N+)=4.34E-5 6 | |
1812.6 | 21/2+ | 557.9 | E2 | 0.00698 | α=0.00698 10, α(K)=0.00592 9, α(L)=0.000851 12, α(M)=0.0001752 25, α(N)=3.67×10-5 6, α(O)=4.96E-6 7, α(P)=2.14E-7 3, α(N+)=4.19E-5 6 | |
2424.1 | 27/2+ | 619.0 | E2 | 0.00532 | α=0.00532 8, α(K)=0.00452 7, α(L)=0.000635 9, α(M)=0.0001305 19, α(N)=2.74×10-5 4, α(O)=3.72E-6 6, α(P)=1.649E-7 23, α(N+)=3.13E-5 5 | |
2427.7 | 25/2+ | 615.3 | E2 | 0.00540 | α=0.00540 8, α(K)=0.00459 7, α(L)=0.000646 9, α(M)=0.0001327 19, α(N)=2.79×10-5 4, α(O)=3.78E-6 6, α(P)=1.674E-7 24, α(N+)=3.18E-5 5 |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
0 | 3/2+ | 1.791 s 7 % β- = 100 % β-n = 1.64 7 | Delayed neutron emission probability=1.62% 10 (evaluated in 1983ReZX). Others: 1.68% 17 (1981En05), 1.54% 9 (1980Lu04), 1.74% 12 (1979Ri09), 1.79% 13 (1981ReZW). E(level): GS ROTATIONAL band. |
76.6 | 5/2+ | E(level): 5/2+ ROTATIONAL band. | |
90.3 | 7/2+ | E(level): GS ROTATIONAL band. | |
349.1 | 9/2+ | E(level): 5/2+ ROTATIONAL band. | |
372.4 | 11/2+ | E(level): GS ROTATIONAL band. | |
755.9 | 13/2+ | E(level): 5/2+ ROTATIONAL band. | |
769.1 | 15/2+ | E(level): GS ROTATIONAL band. | |
816.6 | 9/2- | E(level): 9/2- (octupole) VIBRATIONAL band. | |
872.6 | 11/2- | E(level): 11/2- (octupole) VIBRATIONAL band. | |
1072.1 | 13/2- | E(level): 9/2- (octupole) VIBRATIONAL band. | |
1155.6 | 15/2- | E(level): 11/2- (octupole) VIBRATIONAL band. | |
1182.3 | 13/2 | E(level): (13/2) band. | |
1253.9 | 19/2+ | E(level): GS ROTATIONAL band. | |
1254.7 | 17/2+ | E(level): 5/2+ ROTATIONAL band. | |
1398.0 | 17/2- | E(level): 9/2- (octupole) VIBRATIONAL band. | |
1549.9 | 19/2- | E(level): 11/2- (octupole) VIBRATIONAL band. | |
1558.7 | 17/2 | E(level): (13/2) band. | |
1803.1 | 21/2- | E(level): 9/2- (octupole) VIBRATIONAL band. | |
1805.1 | 23/2+ | E(level): GS ROTATIONAL band. | |
1812.6 | 21/2+ | E(level): 5/2+ ROTATIONAL band. | |
2032.4 | (23/2-) | E(level): 11/2- (octupole) VIBRATIONAL band. | |
2052.8 | (21/2) | E(level): (13/2) band. | |
2294.1 | (25/2-) | E(level): 9/2- (octupole) VIBRATIONAL band. | |
2424.1 | 27/2+ | E(level): GS ROTATIONAL band. | |
2427.7 | 25/2+ | E(level): 5/2+ ROTATIONAL band. | |
E(level) | Jπ(level) | T1/2(level) | Comments |
2581.1 | E(level): 11/2- (octupole) VIBRATIONAL band. | ||
2627.1 | E(level): (13/2) band. | ||
2860.8 | E(level): 9/2- (octupole) VIBRATIONAL band. | ||
3086.8 | E(level): 5/2+ ROTATIONAL band. | ||
3118.1 | E(level): GS ROTATIONAL band. |
E(level) | E(gamma) | Comments |
90.3 | 90.4 | M(γ): From level scheme. |
143Cs produced from fission of 238U: 2009Pa49, 2006Ho05, 2002Pa31.
Calculated β- spectrum: 2001Ka46.
Q-value: Note: Current evaluation has used the following Q record 6262 225221 249734 22-1.57×103 12 2011AuZZ
Q-value: 2003Au03: Q(β-)=6264 22, S(n)=5228 25, S(p)=9.49×103 10, Q(α)=-1260 40