Reaction Data for Long Live Fission Products

ImPACT: Reduction and Resource Recycle of High Level Radioactive Wastes with Nuclear Transmutation

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• 135Cs

¹³⁵Cs; Cesium 135 (Z=55, N=80)

Ground & Isomer states

They are taken from NNDC.

	E [MeV]	Jπ	T½	Decay mode [%]
Ground	—	7/2+	2.3×106 year	β- : 100
Isomer	0.249767(4)	5/2+	0.28 ns	γ : 100

Reaction Data Reference

Projectile	#	Reaction	Reference	Data.ID#
Gamma	0(1)	135Cs(γ,ABS)	Theo: 3D Skyrme Cb-TDFHB	135CsSE.01
Neutron	10	135Cs(N,γ)136Cs	Book: Atlas of Neutron Resonances 2006	V1002.081, V1002.082
			Phys. Rev. C69 (2004) 025803	22846.003
			At. Data Nucl. Data Tables 76 (2000) 70	V0102.288
			Nucl. Phys. A621 (1997) 247	22448.003
			J. Nucl. Sci. Technol. 34 (1997) 431	22342.002
			Canadian Journal of Physics 36 (1958) 863	12008.002
			Phys. Rev. 75 (1949) 1473	12038.002
		135Cs(N,TOT)	A.E.R.E. Harwell Reports 107 (1958) 1	21541.002
		(Resonance prop.)	Soviet Atomic Energy 63 (1988) 851	41022.003
		(Resonance prop.)	Nuclear Data for Reactors Conf., Helsinki 1970 1 679	20553.008
Proton	0	—	—	—
Deuteron	0	—	—	—
4He	0	—	—	—
12C	0	—	—	—

Reactions in the vicinity of 135Cs

(γ,n)134Cs, (n,γ)136Cs, (γ,p)134Xe, (p,γ)136Ba, (n,p)135Xe, (p,n)135Ba
Xe: Xenon(Z=54), Ba: Barium(Z=56)

Reaction	#	Refeference	Remarks	Data.ID#
134Cs(n,γ)	4	Journal of Inorganic and Nuclear Chemistry 5 259 (1958)	134Cs unstable	12017.003
		Atomic Data and Nuclear Data Tables 76 70 (2000)		V0102.286
		Book : Atlas of Neutron Resonances 2006		V1002.079, V1002.080
136Cs(γ,n)	0	(Jπ: 5+, T½: 13.04 d, Decay: β- 100%)	136Cs unstable
134Xe(p,γ)	0	(Jπ: 0+, T½: >5.8e+22 y, Decay: 2β-)
136Ba(γ,p)	0
135Xe(p,n)	0	(Jπ: 3/2+, T½: 9.14 h, Decay: β- 100%)	135Xe unstable
135Ba(n,p)	3	Japan Atomic Energy Research Institute reorts : JAERI-1312,1988	*135Cs	22089.099
		Nuclear Science and Engineering 65 368 (1978)	*135Cs,135gCs	V0012.036, V0012.035
136Ba(n,p+n)	2	Nuclear Science and Engineering 65 368 (1978)	*135Cs,135gCs	V0012.058, V0012.057
136Ba(n,n+p)	2	Nuclear Science and Engineering 65 368 (1978)	*135Cs,135gCs	V0012.060, V0012.059

Numerical Data & Figure

Reaction	Value	Ene.	Data.ID#	Year	Fig. (if it can be described.)
135Cs(N,TOT)	SIG	0.0253 eV	21541.002	1958
135Cs(N,γ)136Cs	SIG	0.0253 eV	22342.002	1997
	SIG,,,RECOM	0.0253 eV	V1002.081	2006
	SIG,,SPA	500 keV, 300 keV, 0.0253 eV	22846.003, 22846.002, 12038.002	2004, 2004, 1949
	SIG,,MXW	30 keV, 0.0253 eV	22448.003, 12008.002	1997, 1958
	SIG,,MXW,RECOM	30 keV	V0102.288	2000
	SIG,,MXW,CALC	5–100 keV	22846.006	2004
	SIG,,,CALC	1 keV–1 MeV	22846.004	2004
135Cs(γ,ABS)	SIG (Theo)	0 –60 MeV	135CsSE.01	2015

For reactions in the vicinity of 135Cs

Reaction	Value	Ene.	Data.ID#	Year	Fig. (if it can be described.)
136Ba(n,p)135mCs	SIG	13 MeV – 15 MeV	22089.099	1988
	SIG,,,EVAL	1 MeV – 20 MeV	V0012.036	1978
136Ba(n,p)135gCs	SIG,,,EVAL	0 MeV – 20 MeV	V0012.035	1978
136Ba(n,p+n)135mCs	SEQ,SIG,,,EVAL	10 MeV – 20 MeV	V0012.058	1978
136Ba(n,p+n)135gCs	SEQ,SIG,,,EVAL	8.5 MeV – 20 MeV	V0012.057	1978
136Ba(n,n+p)135mCs	SEQ,SIG,,,EVAL	10 MeV – 20 MeV	V0012.060	1978
136Ba(n,n+p)135gCs	SEQ,SIG,,,EVAL	8.5 MeV – 20 MeV	V0012.059	1978

Remarks

Terminology

• SIG : Cross section
• SIG,,,RECOM : Cross section- Recommended data
• SIG,,SPA : Cross section- spectrum average
• SIG,,MXW : Cross section- Maxwellian average
• SIG,,MXW,RECOM : Cross section- Maxwellian average- Recommended data
• SIG,,MXW,CALC : Cross section- Maxwellian average- Calculated data
• SIG,,,CALC : Cross section- Calculated data
• SIG,,,EVAL (Cross section- Evaluated data
• RI,,LIM,CALC (Resonance integral for limited energy range- Calculated data
• SEQ,SIG,,,EVAL (Cross section for specified reaction sequence- Evaluated data

Calculations

• 135CsSE.01 : Evaluated from the average of 136Ba and 134Xe E1 strengths

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