Th, Ra, Rn, Po, Pb, Bi, & Tl K x-rays. Rn Kα1. Rn Kα2. 93( 227 Th)/Rn Kβ3. Ra Kα2. Po Kα2 /Bi K α1 79( 227 Th)/Po Kα1. Ra Kα1 /Bi K β1.
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1 Page ( Th) Counts/Channel ( Th)/ 50 ( Th)/ 50 ( Fr) Channel Number Ac(21 yr.) 8/29/2000 HPGe: 50 mm dia. x 20 mm no external absorber embedded in 1.6 um plastic 20 cm A low energy portion 24 Bi Kα2 /Pb K α1 Bi Kβ2 Po Kβ2 29( Th)/29( Th) 31( Th) Ge K x-ray escape peak 43( Th)/43( Th) 65 62( Th)/62( Th) 61( Th) Tl Kα2 Rn Kβ2 Ra Kβ3 /Ra K β1 Pb Kα2 /Tl K α1 Po Kα2 /Bi K α1 79( Th)/Po Kα1 Ra Kα2 110( Ra) 113( Th)/113( Th) 117( Th) 130( 219 Rn) 134( Th) 122( Ra) 141( Th)/141( Th) 144( Ra) Rn Kα2 Rn Kα1 154 ( Ra) 158( Ra) 177( Ra)/177( Ra) 179( Ra) 184( Th) Ra Kα1 /Bi K β1 93( Th)/Rn Kβ3 Th, Ra, Rn, Po, & Pb L x-rays Rn Kβ1 235 ( Th) 256 ( Th) 269 ( Ra) 271 ( 219 Rn) 285 ( Th)/ 286 ( Th) 300 ( Th)/ 300 ( Th) 323 ( Ra) 329 ( Th) 338 ( Ra) 351 ( 211 Bi) 201( Th) 204( Th)/204( Fr)/205( Th) 206( Th) 210( Th) 212( Th) 219( Th)/219( Th) 221( 219 Rn) 234( Th)/234( Fr) 250( Th)/250( Th) 254( Th) 371 ( Ra) 284( Th) 289( Th)/289( Th)/ 289( Fr) 252( Th) 262( Th) 279( Th) 281( Th)/281( Th) 288( Ra) 292( Th) 293( 219 Rn) 308( Th) 304( Th) 312( Th) 314( Th)/314( Th) 319( Th)/319( Fr) 326( Th) 328( Ra) 346( Th) 362/362( Th) 376( Ra) 382( Th)/382( Ra) 383( Th) 388( Ra) 390( Ra) 296( Th) 342( Th)/342( Ra) 350( Th) Lγ Lα Lβ x100 Th, Ra, Rn, Po, Pb, Bi, & Tl K x-rays 369( Fr) 352( Th) 373( Ra) 272( Th) Ra Kβ2 Th Kβ1 /(/ Ra)
2 Page ( 219 Rn) Ac(21 yr.) 8/29/2000 HPGe: 50 mm dia. x 20 mm no external absorber embedded in 1.6 um plastic 20 cm A high energy portion Counts/Channel 430( Ra)/ ( Th)/432( Ra) 438( 215 Po)/438( 219 Rn)/438( Ra) ( Ra) ( 207 Tl) bkg. 711( Ra) ( Th)/803( Fr) 812( Th) 823( Th) ( Th) ann rad 517( 219 Rn) 527( Ra) 609( Ra)/609/bkg. 598( Ra) 676( 219 Rn)/ bkg. bkg bkg. bkg. 757( Th)/757( Fr) 846( Fr) 487( Ra) x Channel Number
3 Page Counts/Channel ( 219 Rn) 404 K x-rays of Pb thru Th ( Ra) 235 ( Th) 256 ( Th) Ac(21 yr.) in secular equilibrium Ge(Li): 35 cm 3 coaxial no absorber 5 cm low energy portion 50( Th) 113( Th)/113( Th) 117( Th) 122( Ra) 130( 219 Rn) 179( Ra) 184( Fr) 141( Th)/141( Th) 144( Ra) 158( Ra) 204( Th) 205( Th) 206( Th) 210( Th) 212( Th) 219( Th)/219( Th) 262( Th) 279( Th) 296( Th) 334( Th) 342( Th) 154( Ra) ( 211 Bi) 517( 219 Rn) bkg. 527( Ra) 598( Ra) 609( Ra)/ ( 219 Rn)/ ( Ra)/ ( Ra) 382( Ra)/383( Th) 432( Ra)/432( Th) 304( Th) 312( Th) 314( Th)/314( Th) 323( Ra) 329( Th) 79( Th)/ Po Kα2 x-ray x ( Ra) 271 ( 219 Ra) 300 ( Th)/ 300 ( Th) 438( 219 Rn)/ 439( Ra)/ 439( 215 Po) 94 Nb 289( Th) 293( Ra)/293( 221 Rn) 319( Th) Ra K β1 /K β3 Ra K β2 134( Th) 362( Th)/ ( Th)/250( Th) 254( Th) 286( Th) 338( Ra) Ra K α1 Rn K β1/k β3 Rn K β2 Rn K α Channel Number
4 Page Ac(21 yr.) Ge(Li): 35 cm 3 coaxial no absorber 5 cm high energy portion ( 207 Tl) Counts/Channel Nb Bkg. Bkg. Bkg Bkg. Bkg Bkg Bkg. Bkg. x Channel Number
5 Page -5- Ac Decay Chain Ac(21 yr.) Fr 1.380% decay (22 min.) 98.62% - decay Th(18 day) 06% decay % - decay decay 219 At (56 sec.) Ra (11 day) 3 % decay 97% - decay decay 215 Bi (7.6 min.) - decay 219 Rn decay (3.9 sec.) 215 Po (1.7 msec.) 211 Pb % decay (36 min.) - decay 00 23% - decay 215 At decay (0.10 msec.) 211 Bi (2.1 min.) % decay 0.276% - decay 207 Tl (4.7 min.) - decay 211 Po decay (0.51 sec.) 207 Pb (stable)
6 Page -6- Ac ( yr.) Decay Scheme Q = % decay yr. 89 Ac Q - = % - decay GAMMA-RAY ENERGIES AND INTENSITIES Nuclide: Ac E (kev) E I Half Life: (3) yr. I Level E, E, I, I, Levels from ENSDF Database as of August 5, 1999 These I are per 100 Decays of Ac For decay total uncertainty add 28% systematic component in quadrature, using normalization factor 0028(8) (+) (-) (-) 3/2(-) Based on 2/15/2000 NNDC/BNL Data Fr min () (5/2+) (1/2+) Th day Based on 8/5/1999 NNDC/BNL Data
7 Page Fr (5/2-) 5/2+ 1/2+ (7/2+) (7/2-) 88 Ra min 3/2(-) % - decay Fr (21.8 min.) Decay Scheme Part 1 of 2 Q= Based on 8/5/1999 NNDC/BNL Data day
8 Page (5/2-) /2+ (7/2+) (7/2-) 5/2+ 88 Ra min 3/2(-) 87 Fr % - decay 09 1 Fr (21.8 min.) Decay Scheme Part 2 of 2 Q= Based on 8/5/1999 NNDC/BNL Data day
9 Page -9- GAMMA-RAY ENERGIES AND INTENSITIES (page 1 of 3) Nuclide: Fr E, E, I, I, Levels- from ENSDF Database as of August 25, 1999 Half Life: 21.8(4) min. E (kev) E I I Level E (kev) E I I Level These I are per 100 Decays of Fr. For Ac parent, multiply these values by 138 For total uncertainty add systematic component of 20% in quadrature, based on the normalization factor 30(6)
10 Page -10- GAMMA-RAY ENERGIES AND INTENSITIES (page 2 of 3) Nuclide: Fr E, E, I, I, Levels- from ENSDF Database as of August 25, 1999 Half Life: 21.8(4) min. E (kev) E I I Level E (kev) E I I Level , , , , ,024.4 These I are per 100 Decays of Fr. For Ac parent, multiply these values by 138 For total uncertainty add systematic component of 20% in quadrature, based on the normalization factor 30(6)
11 Th (18.72 day) Decay Scheme Part 1 of 6 Q = day (1/2+) 90Th 100% decay (1/2)- (9/2)- (11/2+) (9/2)- 1/2+ (9/2)+ Page Based on 8/5/1999 NNDC/BNL Data Ra day (<3 ns) 572 (0.20 ns) (0.42 ns) 20.4 (0.77 ns) (0.20 ns) (>0.3 ns) 3.00 (0.24 ns) 23.5 ( 0.6 ns) 02 (0.63 ns)
12 Th (18.72 day) Decay Scheme Part 2 of 6 Q = day (1/2+) 90Th 100% decay (9/2)- (9/2)+ 5/2+ 1/2+ Page Based on 8/5/1999 NNDC/BNL Data Ra day 2.06 (<3 ns) (<0.10 ns) 3.63 (<50 ns) 8.3 (0.28 ns) 4.89 (0.42 ns) 20.4 (0.77 ns) (75 ns) (0.20 ns) (0.45 ns) 3.00 (0.24 ns) 23.5 ( 0.6 ns) 02 (0.63 ns)
13 Th (18.72 day) Decay Scheme Part 3 of 6 Q = day (1/2+) 90Th 100% decay (11/2-) (9/2)- (9/2)+ (7/2+) (11/2+) (11/2)- (9/2)+ 5/2+ (11/2)+ (9/2)- (9/2)+ Page Based on 8/5/1999 NNDC/BNL Data Ra day (<3 ns) (<0.10 ns) 3.63 (<50 ns) 8.3 (0.28 ns) 4.89 (0.42 ns) (75 ns) (0.20 ns) (>0.3 ns) (0.45 ns) 3.00 (0.24 ns) 23.5 ( 0.6 ns) 02 (0.63 ns)
14 Th (18.72 day) Decay Scheme Part 4 of 6 Q = day (1/2+) 90Th 100% decay (11/2+) 5/2+ (9/2)+ (11/2)+ (9/2)- (9/2)+ Page Ra (1) Based on 8/5/1999 NNDC/BNL Data (<3 ns) (0.20 ns) (<0.10 ns) (<50 ns) (0.28 ns) (0.42 ns) (75 ns) day (0.20 ns) (>0.3 ns) (0.45 ns) 3.00 (0.24 ns) 23.5 ( 0.6 ns) 02 (0.63 ns)
15 Th (18.72 day) Decay Scheme 5/2+ (1/2)- (9/2)+ (9/2) day (1/2+) 90Th 100% decay 1/ (0.77 ns) (75 ns) 88Ra Q = (1) (9/2)+ Page Based on 8/5/1999 NNDC/BNL Data Part 5 of day (<0.10 ns) (<50 ns) (0.28 ns) (0.42 ns) (0.20 ns) (>0.3 ns) (0.45 ns) 3.00 (0.24 ns) 23.5 ( 0.6 ns) 02 (0.63 ns)
16 Th (18.72 day) Decay Scheme Part 6 of 6 Q = day (1/2+) 90Th 100% decay (75 ns) (11/2) (0.15 ns) (11/2) (0.14 ns) (9/2) (0.20 ns) (9/2)+ Page Based on 8/5/1999 NNDC/BNL Data Ra day (>0.3 ns) (0.45 ns) 3.00 (0.24 ns) 23.5 ( 0.6 ns) 02 (0.63 ns)
17 Page -17- GAMMA-RAY ENERGIES AND INTENSITIES (page 1 of 4) Nuclide: Th E, E, I, I, Levels- from ENSDF Database as of August 5, 1999 Half Life: 18.72(2) day E (kev) E I I Level E (kev) E I I Level These I are per 100 Decays of Th. For Ac parent, multiply these values by For total uncertainty add systematic component of 10.6% in quadrature, based on the normalization factor 0.123(13)
18 Page -18- GAMMA-RAY ENERGIES AND INTENSITIES (page 2 of 4) Nuclide: Th E, E, I, I, Levels- from ENSDF Database as of August 5, 1999 Half Life: 18.72(2) day E (kev) E I I Level E (kev) E I I Level These I are per 100 Decays of Th. For Ac parent, multiply these values by For total uncertainty add systematic component of 10.6% in quadrature, based on the normalization factor 0.123(13)
19 Page -19- GAMMA-RAY ENERGIES AND INTENSITIES (page 3 of 4) Nuclide: Th E, E, I, I, Levels- from ENSDF Database as of August 5, 1999 Half Life: 18.72(2) day E (kev) E I I Level E (kev) E I I Level These I are per 100 Decays of Th. For Ac parent, multiply these values by For total uncertainty add systematic component of 10.6% in quadrature, based on the normalization factor 0.123(13)
20 Page -20- GAMMA-RAY ENERGIES AND INTENSITIES (page 4 of 4) Nuclide: Th E, E, I, I, Levels- from ENSDF Database as of August 5, 1999 Half Life: 18.72(2) day E (kev) E I I Level E (kev) E I I Level , , , , , , , , ,024.9 These I are per 100 Decays of Th. For Ac parent, multiply these values by For total uncertainty add systematic component of 10.6% in quadrature, based on the normalization factor 0.123(13)
21 Page -21- Ra (11 day) Decay Scheme day 88 Ra 100% decay Q = (3/2)- (3/2,5/2)+ + (-) (3/2)+,5/2+ (3/2,5/2)+ (5/2,7/2)+ (3/2,5/2)+ 5/2+,7/2+ 5/ Rn (6.2 ps) (6.9 ps) (6.1 ps) (14.2 ps) (42.3 ps) (402 ps) (875 ps) (15.4 ns) Based on 8/5/1999 NNDC/BNL Data sec.
22 Page -22- GAMMA-RAY ENERGIES AND INTENSITIES Nuclide: Ra E, E, I, I, Levels- from ENSDF Database as of August 5, 1999 Half Life: (4) day E (kev) E I I Level E (kev) E I I Level These I are per 100 Decays of Ra. For total uncertainty add systematic component of 1.45% in quadrature, based on the normalization factor 0.137(2)
23 Page -23-5/2+ 7/2+ 9/ Rn (3.96 sec.) Decay Scheme Based on 8/5/1999 NNDC/BNL Data 9/ Po Q = Q = msec. 9/2+ 5/ sec Rn 54 (66 ps) 12.9 (195 ps) 100% decay (66ps) Po (1.781 msec.) Decay Scheme Pb min. Based on 4/26/2000 NNDC/BNL Data msec Po % decay GAMMA-RAY ENERGIES AND INTENSITIES Nuclide: 219 Rn E γ (kev) σ E γ Q Iγ Half Life: 3.96(1) sec. R σiγ Level α α α α < 1,056 α α < α α α < α α ,056 α < α α α α α 1, ,056 α E γ, σe γ, I γ, σi γ, Levels from ENSDF Database as of August 5, 1999 Q These Iγ are per 100 Decays of 219 Rn. R For total uncertainty add 5.5% systematic component in quadrature, based on the normalization factor (6). γ σ γ Q γ R σγ α γ σ γ γ σ γ Q γ R
1 Decay Scheme. 2 Nuclear Data. 2.1 α Transitions
1 Decay Scheme Bi- disintegrates 97.91(3) % by beta minus emission to the levels in Po- and 2.09(3) % through alpha decay to Tl-209. Le bismuth se désintègre principalement par émissions bêta vers le polonium
1 Decay Scheme. 2 Nuclear Data. 2.1 α Transitions
1 Decay Scheme Cf- disintegrates by alpha emissions mainly to the Cm-248 ground state level, and by spontaneous fission for 3,086(8) %. The average number of neutrons emitted by spontaneous fission is:
Appendix B Table of Radionuclides Γ Container 1 Posting Level cm per (mci) mci
3 H 12.35 Y β Low 80 1 - - Betas: 19 (100%) 11 C 20.38 M β+, EC Low 400 1 5.97 13.7 13 N 9.97 M β+ Low 1 5.97 13.7 Positrons: 960 (99.7%) Gaas: 511 (199.5%) Positrons: 1,199 (99.8%) Gaas: 511 (199.6%)
1 Decay Scheme. 2 Nuclear Data. 2.1 Electron Capture Transitions. 2.2 β Transitions
1 Decay Scheme Le césium se désintègre essentiellement par émission bêta moins vers des niveaux excités du baryum. Cs- desintegrates mainly by beta minus emissions to excited levels in Ba-. 2 Nuclear Data
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1 Decay Scheme Pa is a member of the natural U235 decay chain. Pa disintegrates by alpha emission to various excited levels and the ground state of Ac227. Le protactinium se désintègre par émissions alpha
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1 Decay Scheme Np decays 87,8 (6) % by electron capture to U, 12,0 (6) % by beta minus emission to Pu, a possible alpha emission of 0,16 (6)% to Pa232 has not been observed. Le neptunium se désintègre
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