High-power liquid-lithium jet target for neutron production

Halfon, S.; Arenshtam, A.; Kijel, D.; Paul, M.; Berkovits, D.; Eliyahu, I.; Feinberg, G.; Friedman, M.; Hazenshprung, Nir; Mardor, I.; Nagler, A.; Shimel, G.; Tessler, M.; Silverman, I.

doi:10.1063/1.4847158

Cited by 33 publications

(30 citation statements)

References 24 publications

(38 reference statements)

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“…For this use, of specific concern is the volume power density, in the order of 1 MW/cm 3 , created by ~2 MeV protons in the Bragg peak area about 150 μm deep inside the lithium. The target was designed based on a thermal model, accompanied by a detailed calculation of the 7 Li(p,n) neutron yield, energy distribution, and angular distribution [33,34,35]. [33].…”

Section: Windowless Jet Liquid Lithium Targetmentioning

confidence: 99%

“…More information about LiLiT and its supporting systems (electro-magnetic pump, heat exchangers, control, etc.) can be found in [30,31,33,35,37].…”

Section: Windowless Jet Liquid Lithium Targetmentioning

confidence: 99%

“…The thermal design is based on a model presented in [35]. The model was built to estimate the flow velocity required to prevent excessive heating and evaporation of lithium in the beam spot area and possible upstream diffusion of vapors into the accelerator beam-line, and to eliminate boiling bubble formation inside the target, around the Bragg-peak area.…”

Section: Windowless Jet Liquid Lithium Targetmentioning

confidence: 99%

“…The operation of LiLiT is described briefly in Section 2.2.1. Further details about LiLiT operation and monitoring, and the design, performance and analysis of MACS experiments are given in [30,33,34,35].…”

Section: Nuclear Astrophysics -The S-processmentioning

confidence: 99%

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The Soreq Applied Research Accelerator Facility (SARAF): Overview, research programs and future plans

Mardor¹,

Aviv²,

Avrigeanu³

et al. 2018

Eur. Phys. J. A

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The Soreq Applied Research Accelerator Facility (SARAF) is under construction in the Soreq Nuclear Research Center at Yavne, Israel. When completed at the beginning of the next decade, SARAF will be a user facility for basic and applied nuclear physics, based on a 40 MeV, 5 mA CW proton/deuteron superconducting linear accelerator. Phase I of SARAF (SARAF-I, 4 MeV, 2mA CW protons, 5 MeV 1mA CW deuterons) is already in operation, generating scientific results in several fields of interest. The main ongoing program at SARAF-I is the production of 30 keV neutrons and measurement of Maxwellian Averaged Cross Sections (MACS), important for the astrophysical s-process. The world leading Maxwellian epithermal neutron yield at SARAF-I (5×10 10 epithermal neutrons/sec), generated by a novel Liquid-Lithium Target (LiLiT), enables improved precision of known MACSs, and new measurements of lowabundance and radioactive isotopes. Research plans for SARAF-II span several disciplines: Precision studies of beyond-Standard-Model effects by trapping light exotic radioisotopes, such as 6 He, 8 Li and 18,19,23 Ne, in unprecedented amounts (including meaningful studies already at SARAF-I); extended nuclear astrophysics research with higher energy neutrons, including generation and studies of exotic neutron-rich isotopes relevant to the rapid (r-) process; nuclear structure of exotic isotopes; high energy neutron cross sections for basic nuclear physics and material science research, including neutron induced radiation damage; neutron based imaging and therapy; and novel radiopharmaceuticals development and production.

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Section: Windowless Jet Liquid Lithium Targetmentioning

confidence: 99%

“…More information about LiLiT and its supporting systems (electro-magnetic pump, heat exchangers, control, etc.) can be found in [30,31,33,35,37].…”

Section: Windowless Jet Liquid Lithium Targetmentioning

confidence: 99%

Section: Windowless Jet Liquid Lithium Targetmentioning

confidence: 99%

Section: Nuclear Astrophysics -The S-processmentioning

confidence: 99%

See 2 more Smart Citations

The Soreq Applied Research Accelerator Facility (SARAF): Overview, research programs and future plans

Mardor¹,

Aviv²,

Avrigeanu³

et al. 2018

Eur. Phys. J. A

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“…1). LiLiT consists of a windowless film of liquid lithium (1.5 mm thick, 18 mm wide) flowing at 2-3 m/s, serving as both the neutronproducing target and the kW-power beam dump for the incident ∼1.5 mA proton beam [19,20]. The distance from the neutron source to the center of the Ar-filled sphere was 11.3 mm, intercepting ∼ 30% of the outgoing neutrons.…”

mentioning

confidence: 99%

StellarAr36,38(n,γ)Ar
Tessler
¹
,
Paul
²
,
Halfon³
et al. 2018
Phys. Rev. Lett.
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17
2
11
0
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The ^{36}Ar(n,γ)^{37}Ar (t_{1/2}=35 d) and ^{38}Ar(n,γ)^{39}Ar (269 yr) reactions were studied for the first time with a quasi-Maxwellian (kT∼47 keV) neutron flux for Maxwellian average cross section (MACS) measurements at stellar energies. Gas samples were irradiated at the high-intensity Soreq applied research accelerator facility-liquid-lithium target neutron source and the ^{37}Ar/^{36}Ar and ^{39}Ar/^{38}Ar ratios in the activated samples were determined by accelerator mass spectrometry at the ATLAS facility (Argonne National Laboratory). The ^{37}Ar activity was also measured by low-level counting at the University of Bern. Experimental MACS of ^{36}Ar and ^{38}Ar, corrected to the standard 30 keV thermal energy, are 1.9(3) and 1.3(2) mb, respectively, differing from the theoretical and evaluated values published to date by up to an order of magnitude. The neutron-capture cross sections of ^{36,38}Ar are relevant to the stellar nucleosynthesis of light neutron-rich nuclides; the two experimental values are shown to affect the calculated mass fraction of nuclides in the region A=36-48 during the weak s process. The new production cross sections have implications also for the use of ^{37}Ar and ^{39}Ar as environmental tracers in the atmosphere and hydrosphere.

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Optimization Studies on an Accelerator-Driven Neutron Source

Dabruck

2018

Springer Theses

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High-power liquid-lithium jet target for neutron production

Abstract: A compact Liquid-Lithium Target (LiLiT) was built and tested with a high-

Cited by 33 publications

References 24 publications

The Soreq Applied Research Accelerator Facility (SARAF): Overview, research programs and future plans

The Soreq Applied Research Accelerator Facility (SARAF): Overview, research programs and future plans

StellarAr36,38(n,γ)Ar
Tessler
¹
,
Paul
²
,
Halfon³
et al. 2018
Phys. Rev. Lett.
Self Cite
17
2
11
0
View full text Add to dashboard Cite

Optimization Studies on an Accelerator-Driven Neutron Source

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High-power liquid-lithium jet target for neutron production

Abstract: A compact Liquid-Lithium Target (LiLiT) was built and tested with a high-

Cited by 33 publications

References 24 publications

The Soreq Applied Research Accelerator Facility (SARAF): Overview, research programs and future plans

The Soreq Applied Research Accelerator Facility (SARAF): Overview, research programs and future plans

StellarAr36,38(n,γ)ArTessler1, Paul2, Halfon3 et al. 2018Phys. Rev. Lett.Self Cite172110View full textAdd to dashboardCite

Optimization Studies on an Accelerator-Driven Neutron Source

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Product

Resources

About

StellarAr36,38(n,γ)Ar
Tessler
¹
,
Paul
²
,
Halfon³
et al. 2018
Phys. Rev. Lett.
Self Cite
17
2
11
0
View full text Add to dashboard Cite