Fracture Energy for three-point bend tests on single edge notched beams
9 Be(n, a ) 6 He production tests for b -beams
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15/11/2009 Isolde Users Workshop T. Stora – T 9 Be(n,) 6 He production tests for -beams T. Stora Target and Ion Source Development (TISD) EN-STI-RBS
description
T. Stora Target and Ion Source Development (TISD) EN-STI-RBS. 9 Be(n, a ) 6 He production tests for b -beams. From last year. 9 Be(n, a ) 6 He. Actinide targets (ThO, UCx). pure. n-rich. Pure Lanthanide beams. TISD. - PowerPoint PPT Presentation
Transcript of 9 Be(n, a ) 6 He production tests for b -beams
15/11/2009Isolde Users Workshop T. Stora – TISD
9Be(n,)6He production testsfor -beams
T. Stora
Target and Ion Source Development (TISD)
EN-STI-RBS
15/11/2009Isolde Users Workshop T. Stora – TISD
From last year
Pure Lanthanide beams
n-rich
9Be(n,)6He
pureActinide targets (ThO, UCx)
15/11/2009Isolde Users Workshop T. Stora – TISD
TISD
Standing Group for Upgrade of ISOLDE (SGUI)Results and Priorities discussed vs proposals from INTC
BeO tests : target material, n-converter for (n,X)
Low work function cavities (GdB6) for Nd beams
UC-x tests (INFN, EURISOL Task#3)
15/11/2009Isolde Users Workshop T. Stora – TISD
Production of 6He
1.3 1013 6He/s 100kW, 40 MeV deuton beam
2 1013 6He/s 100kW, 1 GeV proton beam
1014 6He/s 200kW, 2 GeV proton beam
Ø3cm , 24cm
M. Hass et al., J. Phys. G 35, 014042 (2008);T. Hirsh et al., PoS (Nufact08)090
N. Thiolliere et al., EURISOL-DS, TN03-25-2006-0004
T. Stora et al., EURISOL-DS, TN03-25-2006-0003Ø3cm , 15cm
15/11/2009Isolde Users Workshop T. Stora – TISD
Proton beam focusing on converterIn collaboration with E. Piselli and PSB operator, BE-OP
No tailing detected on SEMGRIDS
0 25 50 75 100-5
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4sm g01 7e12sm f10 7e12sm g01 2e12Régression linéaire pour sm g01 2e12sm f10 2e12Régression linéaire pour sm f10 2e12sm g01 3e13
sm f10 3e13sigm a sm g01sigm a m sf10
dvt212
Del
ta z
(m
m)
15/11/2009Isolde Users Workshop T. Stora – TISD
Neutron characteristics
Foil activation & Fluka simulations
Irradiation permit requested to SC-RP
15/11/2009Isolde Users Workshop T. Stora – TISD
Neutrons characteristicsMaterial Al Ni In BiZ 13 28 49 83A 27 58 115 209thickness (mm) 200 200 200 500size (cm2) 1 1 1 1thickness X (g/cm2) 0.54 1.78 1.46 4.9isotope 24Na 57Ni 115In 206Bi 205Bi 204Bi 203Bi 202Bi 200Pbhalf life [s] 54000 129600 16200 539136 1321920 173774 42480 6120 77400cross section (mbarn) 120 100 300 1400 1000 500 400 220 48integrated proton dose 3E+14 3E+14 3E+14 3E+14 3E+14 3E+14 3E+14 3E+14 3E+14production total 4.8E+07 4.4E+07 4.8E+08 1.9E+08 1.7E+08 8.4E+07 6.5E+07 2.6E+07 2.6E+08activity (Bq) 6.2E+02 2.4E+02 2.1E+04 2.4E+02 8.8E+01 1.4E+03 1.1E+03 3.0E+03 5.8E+01
E
15/11/2009Isolde Users Workshop T. Stora – TISD
Neutrons characteristics
E. Noah, R. Hodak, P. Delahaye
1E-5 1E-4 1E-3 0,01 0,1 10
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Ratio
2.p
ositio
n/1.
posit
ion
Energy [GeV]
FLUKA
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1E-5 1E-4 1E-3 0,01 0,1 1
1E-3 0,01 0,1
1E10
1E11
1E12
2.position cor Flux_function (User) Fit of 2.position cor
No o
f neu
trons
Energy (GeV)
1E10
1E11
1E12
FLUKA
15/11/2009Isolde Users Workshop T. Stora – TISD
BeO : A new target material
R. Hodak, H. Franberg, V. Kumar
15/11/2009Isolde Users Workshop T. Stora – TISD
6He Yields
Also 9Be(n,2p)8He production seen
600 800 1000 1200 1400 1600 18000,0E0
2,0E7
4,0E7
6,0E7
8,0E7
1,0E8
1,2E8
1,4E8
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6He+ beam product ion
Target temperature (°C)
Yiel
d (/
muC
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6He release curve from BeO
0.E+00
2.E+05
4.E+05
6.E+05
8.E+05
1.E+06
1.E+06
0.01 0.1 1 10
tdelay+0.5tcoll (s)
beta
s/m
scol
l/sm
eas
(s-1
)
15/11/2009Isolde Users Workshop T. Stora – TISD
BeO release propertiesEffusion characteristics
1st order evaluation: teff ~ trise ~ V T-0.5
0,022 0,024 0,026 0,028 0,030 0,032 0,0340
10
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Trise (m s)Régression linéaire pour Trise (m s)
1/sqrt (T_abs)
tris
e (m
s)
600 800 1000 1200 1400 1600 180040%
50%
60%
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100%
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Target Temperature (°C)
Rel
ease
d fr
acti
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Online tests team
15/11/2009Isolde Users Workshop T. Stora – TISD
Nd beams with GdB6 cavity
402.
5 13
9 Pm
405.
0 13
9 Nd
419.
2* 13
9 Sm
+ 13
9 Eu
475.
1 13
9 Sm
462.
7 13
9 Pm
+139
Sm+
139 E
u
447.
3 13
9 Sm
A=139RILIS and TISD developments
15/11/2009Isolde Users Workshop T. Stora – TISD
Nd beams with GdB6 cavity
Ta402-GdB6 w/o RILIS Ta402-GdB6 RILIS on Ta414-W w/o RILIS
_counts (/scoll/mC) 4400 4900 19800
Yield estimates (/mC) 139Pm+139Sm
1.8e6 1.8e6 9.0e6
Yield estimates (/mC) 139Nd
n.d. 1.5e6 n.d.
Total beam current (pA) A=139
- - <1
Total beam current (pA) A=140
<1 <1 4
Total beam current (pA) A=142
1 1 -
15/11/2009Isolde Users Workshop T. Stora – TISD
30Si(n,)27Mg Production
100 mbarn
3 MeV
30Si(n,)27Mg9Be(n,)6He
1st estimates : 3-30pA 27Mg+, < 100pA 27Al+
15 MeV
130 mbarn
15/11/2009Isolde Users Workshop T. Stora – TISD
Acknowledgment
Eurisol-DS – Euro
E. Noah
R. Hodak, B. Crepieux, E. Bouquerel, P. Carbonez, E. Piselli, BE-OP
GANIL (G. Lhersonneau, MG de Saint Laurent, P. Delahaye, H. Franberg, F. de Oliveira)
Weiztman Inst (V. Kumar, T. Hirsh, M. Hass)
