Production and characterization of oxygen-reduced implanted 21Ne targets

Lee, H.Y.; Becker, Hans‐Werner; Stech, E.; Strandberg, E.; Wiescher, M.

doi:10.1016/j.nimb.2009.08.019

Cited by 4 publications

(2 citation statements)

References 29 publications

(50 reference statements)

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“…This allowed to produce, in a single irradiation, more than one implanted target with uniform implantation along the backing surface. Previous investigations on the implantation of neon gas showed that tantalum backings provide high saturation concentrations (between 10 17 and 10 18 atoms/cm 2 ) and a good stability of the implantation against beam irradiation [22][23][24][25].…”

Section: B Targetsmentioning

confidence: 99%

Strengths of the resonances at 436, 479, 639, 661, and 1279 keV in theNe22(p,γ)Na23
Depalo
¹
,
Cavanna
²
,
Ferraro
³

et al. 2015
Phys. Rev. C
42
5
58
5
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The22 Ne(p,γ) 23 Na reaction is included in the neon-sodium cycle of hydrogen burning. A number of narrow resonances in the Gamow window dominate the thermonuclear reaction rate. Several resonance strengths are only poorly known. As a result, the 22 Ne(p,γ) 23 Na thermonuclear reaction rate is the most uncertain rate of the cycle. Here, a new experimental study of the strengths of the resonances at 436, 479, 639, 661, and 1279 keV proton beam energy is reported. The data have been obtained using a tantalum target implanted with 22 Ne. The strengths ωγ of the resonances at 436, 639, and 661 keV have been determined with a relative approach, using the 479-and 1279-keV resonances for normalization. Subsequently, the ratio of resonance strengths of the 479-and 1279-keV resonances was determined, improving the precision of these two standards. The new data are consistent with, but more precise than, the literature with the exception of the resonance at 661 keV, which is found to be less intense by one order of magnitude. In addition, improved branching ratios have been determined for the gamma decay of the resonances at 436, 479, and 639 keV.

show abstract

Section: B Targetsmentioning

confidence: 99%

Strengths of the resonances at 436, 479, 639, 661, and 1279 keV in theNe22(p,γ)Na23
Depalo
¹
,
Cavanna
²
,
Ferraro
³

et al. 2015
Phys. Rev. C
42
5
58
5
View full text Add to dashboard Cite

show abstract

“…One of the most effective technique to produce targets which are isotopically pure and can withstand high beam load over a long time is implantation technique [11,12]. 14 N 3+ ions of energy 75 keV from the ECR (Electron Cyclotron Resonance) ion source of the low energy ion accelerator [13][14][15][16] at Tata Institute of Fundamental Research (TIFR), Mumbai, were implanted into 0.30(5) mm thick Ta backing.…”

Section: A the Implanted Targetmentioning

confidence: 99%

Study of proton capture resonant state of ^{15}O at 7556 keV

Sharma,

Gupta,

Chowdhury

et al. 2020

Preprint

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The slowest reaction in the CNO cycle 14 N(p,γ) 15 O has been studied by populating the E lab p =278 keV (E r c.m. =259 keV) proton capture resonant state of 15 O at 7556 keV. The strength of the resonance (ωγ) has been determined from the experimental data. The level lifetime of the sub-threshold resonant state at Ex=6792 keV, as well as the lifetimes of the 5181 keV and 6172 keV states, have been measured using the Doppler shift attenuation method (DSAM). The structural properties of the nucleus 15 O, such as, the level energies, transition strengths, level lifetimes, and spectroscopic factors, have been calculated theoretically by using the large basis shell model, which agrees reasonably well with the present as well as the previous experimental data.

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Production and characterisation of 20,22Ne targets

Prajapati

Pizzone²,

Hingu³

et al. 2022

Pramana - J Phys

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Production and characterization of oxygen-reduced implanted 21Ne targets

Cited by 4 publications

References 29 publications

Strengths of the resonances at 436, 479, 639, 661, and 1279 keV in theNe22(p,γ)Na23
Depalo
¹
,
Cavanna
²
,
Ferraro
³

et al. 2015
Phys. Rev. C
42
5
58
5
View full text Add to dashboard Cite

Strengths of the resonances at 436, 479, 639, 661, and 1279 keV in theNe22(p,γ)Na23
Depalo
¹
,
Cavanna
²
,
Ferraro
³

et al. 2015
Phys. Rev. C
42
5
58
5
View full text Add to dashboard Cite

Study of proton capture resonant state of ^{15}O at 7556 keV

Production and characterisation of 20,22Ne targets

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Production and characterization of oxygen-reduced implanted 21Ne targets

Cited by 4 publications

References 29 publications

Strengths of the resonances at 436, 479, 639, 661, and 1279 keV in theNe22(p,γ)Na23Depalo1, Cavanna2, Ferraro3 et al. 2015Phys. Rev. C425585View full textAdd to dashboardCite

Strengths of the resonances at 436, 479, 639, 661, and 1279 keV in theNe22(p,γ)Na23Depalo1, Cavanna2, Ferraro3 et al. 2015Phys. Rev. C425585View full textAdd to dashboardCite

Study of proton capture resonant state of ^{15}O at 7556 keV

Production and characterisation of 20,22Ne targets

Contact Info

Product

Resources

About

Strengths of the resonances at 436, 479, 639, 661, and 1279 keV in theNe22(p,γ)Na23
Depalo
¹
,
Cavanna
²
,
Ferraro
³

et al. 2015
Phys. Rev. C
42
5
58
5
View full text Add to dashboard Cite

Strengths of the resonances at 436, 479, 639, 661, and 1279 keV in theNe22(p,γ)Na23
Depalo
¹
,
Cavanna
²
,
Ferraro
³

et al. 2015
Phys. Rev. C
42
5
58
5
View full text Add to dashboard Cite