List of levels for 154HO

ADOPTED LEVELS, GAMMAS for ¹⁵⁴Ho

Author: C. W. Reich | Citation: Nucl. Data Sheets 110, 2257 (2009) | Cutoff date: 1-May-2008

Full ENSDF file | Adopted Levels (PDF version)

Q(β-)=-2034 keV 9	S(n)= 7699 keV 10	S(p)= 2785 keV 9	Q(α)= 4041 keV 4
S(2n)= 17177 keV 10	S(2p)= 8.50×10³ keV 9	Q(EC)= 5755 keV 10
Reference: 2017WA10

References:
A	¹⁵⁴Er ε decay	B	¹⁴¹Pr(¹⁶O,3nγ)

Levels: 1990So04 discuss configurations and β decay.

E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
0.0	A	2-	11.76 m 19 % ε = 99.981 5 % α = 0.019 5
26.9 2	A	1+		26.9 2	100	E1	0.0	2-
0+X 8	A B	8+	3.10 m 14 % ε = 100 % IT ≈ 0 % α < 0.001
21+X	B
285+X	B	(9+)		264 285		(M1)	21+X 0+X	8+
339+X	B	(10+)		54 318 339		(E2)	285+X 21+X 0+X	(9+) 8+
521+X	B	(11-)		182	100		339+X	(10+)
813+X	B	(12-)		292	100		521+X	(11-)
854+X	B	(11+)		569	100		285+X	(9+)
890+X	B	(12+)		551	100		339+X	(10+)
1096+X	B	(13-)		575	100		521+X	(11-)
1198+X	B	(13)		384 677			813+X 521+X	(12-) (11-)
1375+X	B	(14-)		279 562			1096+X 813+X	(13-) (12-)
1454+X	B	(13+)		600	100		854+X	(11+)
1476+X	B	(14+)		586	100		890+X	(12+)
1686+X	B	(15-)		590	100		1096+X	(13-)
1728+X	B	(15)		530	100		1198+X	(13)
1972+X	B	(16-)		286 597			1686+X 1375+X	(15-) (14-)
2186+X	B	(16)		458 500 811			1728+X 1686+X 1375+X	(15) (15-) (14-)
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
2231+X	B	(16+)		755	100		1476+X	(14+)
2301+X	B	(17-)		615	100		1686+X	(15-)
2384+X	B	(18-)		198 412			2186+X 1972+X	(16) (16-)
2438+X	B	(17)		252	100		2186+X	(16)
2640+X	B	(18-)		339 668			2301+X 1972+X	(17-) (16-)
2740+X	B	(19)		356	100		2384+X	(18-)
3060+X	B	(18+)		829	100		2231+X	(16+)
3072+X	B	(19-)		771	100		2301+X	(17-)
3396+X	B	(20-)		324 756			3072+X 2640+X	(19-) (18-)
3453+X	B	(20)		713	100		2740+X	(19)
3637+X	B	(21)		897	100		2740+X	(19)
3638+X	B	(21)		185	100		3453+X	(20)
4068+X	B			430	100		3638+X	(21)
4413+X	B	(23)		776	100		3637+X	(21)
4551+X	B			913	100		3638+X	(21)
4633+X	B			220	100		4413+X	(23)
4927+X	B			859	100		4068+X
5089+X	B			456	100		4633+X
5170+X	B	(25)		757	100		4413+X	(23)
5435+X	B	(26)		265	100		5170+X	(25)

J^π(level): From ¹⁴¹Pr(¹⁶O,3n) (1994Ch50), unless noted otherwise. These values are based largely on the existence of rotational-band structure and the expected nucleonic configurations in nuclides in this mass region.

E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 1 - possible aligned (π h_11/2)(ν f_7/2) band
285+X	(9+)
854+X	(11+)		569	100		285+X	(9+)
1454+X	(13+)
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 2 - possible aligned (π h_11/2)(ν h_9/2) band
339+X	(10+)
890+X	(12+)		551	100		339+X	(10+)
1476+X	(14+)
2231+X	(16+)
3060+X	(18+)		829	100		2231+X	(16+)
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 3 - possible rotationally aligned (π h_11/2)(ν i_13/2)
521+X	(11-)
1096+X	(13-)		575	100		521+X	(11-)
1686+X	(15-)
2301+X	(17-)
3072+X	(19-)		771	100		2301+X	(17-)
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 4 - possible rotationally aligned (π h_11/2)(ν i_13/2)
813+X	(12-)
1375+X	(14-)		279 562			1096+X 813+X	(13-) (12-)
1972+X	(16-)
2640+X	(18-)
3396+X	(20-)		324 756			3072+X 2640+X	(19-) (18-)

E(level) (keV)	J^π(level)	T_1/2(level)	E(γ) (keV)	Multipolarity	Conversion Coefficient	Additional Data
26.9	1+		26.9 2	E1	2.07	α=2.07 6

E(level)	J^π(level)	T_1/2(level)	Comments
0.0	2-	11.76 m 19 % ε = 99.981 5 % α = 0.019 5	Q=+0.19 10, μ=-0.643 6 Δ<r²>(¹⁵⁴Ho-¹⁵⁶Ho)=0.334 fm² 4 (1989Al27). Others: 0.26 fm² (1989OtZZ); 0.4 fm² (read from graph of 1988NeZZ). E(level): Δ<r²>(¹⁵⁴Ho-¹⁵⁶Ho)=0.334 fm² 4 (1989Al27). Others: 0.26 fm² (1989OtZZ); 0.4 fm² (read from graph of 1988NeZZ).
0+X	8+	3.10 m 14 % ε = 100 % IT ≈ 0 % α < 0.001	Q=-1.0 5, μ=5.63 6 Δ<r²>(ground state-isomer)=0.015 fm² (1989Al27, 1989OtZZ). E(level): Δ<r²>(ground state-isomer)=0.015 fm² (1989Al27, 1989OtZZ).
285+X	(9+)		E(level): possible aligned (π h_11/2)(ν f_7/2) band.
339+X	(10+)		E(level): possible aligned (π h_11/2)(ν h_9/2) band.
521+X	(11-)		E(level): possible rotationally aligned (π h_11/2)(ν i_13/2).
813+X	(12-)		E(level): possible rotationally aligned (π h_11/2)(ν i_13/2).
854+X	(11+)		E(level): possible aligned (π h_11/2)(ν f_7/2) band.
890+X	(12+)		E(level): possible aligned (π h_11/2)(ν h_9/2) band.
1096+X	(13-)		E(level): possible rotationally aligned (π h_11/2)(ν i_13/2).
1375+X	(14-)		E(level): possible rotationally aligned (π h_11/2)(ν i_13/2).
1454+X	(13+)		E(level): possible aligned (π h_11/2)(ν f_7/2) band.
1476+X	(14+)		E(level): possible aligned (π h_11/2)(ν h_9/2) band.
1686+X	(15-)		E(level): possible rotationally aligned (π h_11/2)(ν i_13/2).
1972+X	(16-)		E(level): possible rotationally aligned (π h_11/2)(ν i_13/2).
2231+X	(16+)		E(level): possible aligned (π h_11/2)(ν h_9/2) band.
2301+X	(17-)		E(level): possible rotationally aligned (π h_11/2)(ν i_13/2).
2640+X	(18-)		E(level): possible rotationally aligned (π h_11/2)(ν i_13/2).
3060+X	(18+)		E(level): possible aligned (π h_11/2)(ν h_9/2) band.
3072+X	(19-)		E(level): possible rotationally aligned (π h_11/2)(ν i_13/2).
3396+X	(20-)		E(level): possible rotationally aligned (π h_11/2)(ν i_13/2).

E(level)	E(gamma)	Comments
26.9	26.9	E(γ): From (1982To14). Other: 27.6 (1982Ba75). M(γ): From α(L)exp=1.50~15 in ¹⁵⁴Er ε decay.
285+X	285	M(γ): From ¹⁴¹Pr(¹⁶O,3n) (1994Ch50).
339+X	339	M(γ): From ¹⁴¹Pr(¹⁶O,3n) (1994Ch50).