List of levels for 191PO

ADOPTED LEVELS, GAMMAS for ¹⁹¹Po

Author: M.S. Basunia | Citation: Nucl. Data Sheets 195, 368 (2024) | Cutoff date: 1-Dec-2023

Full ENSDF file | Adopted Levels (PDF version)

Q(β-)=-8933 keV 18	S(n)= 8577 keV 15	S(p)= 1762 keV 22	Q(α)= 7493 keV 5
Reference: 2021WA16

References:
A	¹⁹⁵Rn α decay (6 MS)	B	¹⁹⁵Rn α decay (5 MS)
C	(HI,xnγ)

Identification: ¹⁰⁰Mo(⁹⁴Mo,3n) excitation function and systematics of α-particle energies (1993Qu03); ⁹⁶Mo(⁹⁶Mo,n) (1997Ba25), ¹⁶⁰Dy(³⁶Ar,5n) E=196 MeV (1999An36).

Levels: Tentative level scheme adopted from 2002An19 (HI,Xnγ).

E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	Final Levels
0.0	A C	(3/2-)	22 ms 1 % α ≈ 100
61 11	B C	(13/2+)	93 ms 3 % α ≈ 100
323	C	(17/2+)		262	61	(13/2+)
690	C	(21/2+)		367	323	(17/2+)
1154	C	(25/2+)		464	690	(21/2+)
1693?	C	(29/2+)		539	1154	(25/2+)

E(level): From γ-ray energies, except where otherwise noted.

E(γ): From (HI,Xnγ)

E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	Final Levels
Band 1 - Band based on (13/2⁺) state. This is the band comprising the
61 11	(13/2+)	93 ms 3 % α ≈ 100
323	(17/2+)
690	(21/2+)		367	323	(17/2+)
1154	(25/2+)		464	690	(21/2+)
1693	(29/2+)		539	1154	(25/2+)

E(level)	J^π(level)	T_1/2(level)	Comments
61	(13/2+)	93 ms 3 % α ≈ 100	Isotope shift: Δ<r²>(¹⁹¹Po, ²¹⁰Po)=-0.350 fm² 40 and -0.553 fm² 40 (2013Se03). E(level): Isotope shift: Δ<r²>(¹⁹¹Po, ²¹⁰Po)=-0.350 fm² 40 and -0.553 fm² 40 (2013Se03). Band based on (13/2⁺) state. This is the band comprising the. J^π(level): Jπ sequence on the basis of assumed high-spin band structure built on a (13/2⁺) state.
323	(17/2+)		E(level): Band based on (13/2⁺) state. This is the band comprising the. J^π(level): Jπ sequence on the basis of assumed high-spin band structure built on a (13/2⁺) state.
690	(21/2+)		E(level): Band based on (13/2⁺) state. This is the band comprising the. J^π(level): Jπ sequence on the basis of assumed high-spin band structure built on a (13/2⁺) state.
1154	(25/2+)		E(level): Band based on (13/2⁺) state. This is the band comprising the. J^π(level): Jπ sequence on the basis of assumed high-spin band structure built on a (13/2⁺) state.
1693	(29/2+)		E(level): Band based on (13/2⁺) state. This is the band comprising the. J^π(level): Jπ sequence on the basis of assumed high-spin band structure built on a (13/2⁺) state.