Thin 6Li(n, α)T transmission flux monitor

Macklin, R. L.; Hill, N. W.; Allen, Barry J.

doi:10.1016/0029-554x(71)90168-6

Cited by 41 publications

(8 citation statements)

References 4 publications

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“…Table I lists the resonances observed in the present data below 20 keY bombarding ~nergy. Below 3 keY our values compare well with the previously recommended values of Mughabghab and Garber (1973). The reduced neutron widths were obtained from…”

Section: Transmissionsupporting

confidence: 87%

“…The essential features ofthe neutron CaptureJacility at the 40 m station of ORELA were given by Macklin and Allen (1971) and Macklin et al (1971). The uncorrected capture data were normalized relative to the 6Li(n, oc) cross section and analysed, resonance by resonance, using the analytical procedure described by Boldeman et al (1975).…”

Section: Neutron Capturementioning

confidence: 99%

“…D Entries in this column for 2grn are from Mughabghab and Garber (1973). E Parentheses in this column enclose assumed r, values taken from Macklin et al (1977).…”

Section: ±7mentioning

confidence: 99%

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High Resolution Neutron Transmission and Capture for 91Zr

Musgrove¹,

Boldeman²,

Allen³

et al. 1977

Aust. J. Phys.

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Section: Transmissionsupporting

confidence: 87%

Section: Neutron Capturementioning

confidence: 99%

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High Resolution Neutron Transmission and Capture for 91Zr

Musgrove¹,

Boldeman²,

Allen³

et al. 1977

Aust. J. Phys.

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“…A thin 6 Li-loaded glass scintillator [17], located 43 cm ahead of the sample in the neutron beam, was used to measure the energy dependence of the neutron flux. Separate sampleout background measurements were made, and measurements with a carbon sample were used to subtract the very small, smoothly varying background caused by sample-scattered neutrons.…”

Section: Experiments and Data Reductionmentioning

confidence: 99%

Improved192,194,195,196Pt(n,γ) and
Koehler
¹
,
Guber
²

2013
Phys. Rev. C
23
3
25
0
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192 Pt is produced solely by the slow neutron capture (s) nucleosynthesis process and hence an accurate (n, γ ) reaction rate for this nuclide would allow its use as an important calibration point near the termination of the s-process nucleosynthesis flow. For this reason, we have measured neutron capture and total cross sections for 192,194,195,196,nat Pt in the energy range from 10 eV to several hundred keV at the Oak Ridge Electron Linear Accelerator. Measurements on the other Pt isotopes were, in part, necessitated by the fact that only a relatively small 192 Pt sample of modest enrichment was available. Astrophysical 192,194,195,196 Pt(n, γ ) reaction rates, accurate to approximately 3%-5%, were calculated from these data. No accurate reaction rates have been published previously for any of these isotopes. At s-process temperatures, previously recommended rates are larger (by as much as 35%) and have significantly different shapes as functions of temperature than our new rates. We used our new Pt results, together with 191,193 Ir(n, γ ) data, to calibrate nuclear statistical model calculations and hence obtain an improved rate for the unmeasured s-process branching-point isotope 192 Ir.

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“…Although the 6 Li(n,α)-cross section exhibits a smooth 1/vbehaviour up to the resonance at 250 keV, the efficiency must carefully be calculated to account for the resonant structure of the neutron interaction with the major constituents of the detector in this energy region. The strongly energy-dependent corrections reflect the influence of silicon and oxygen, even if thin scintillators are employed in a low-mass environment [34,38]. Nevertheless, these detectors have been successfully employed in tof-measurements for energies up to 1(2) MeV [38].…”

Section: Present Status and Future Trends 41 Present Status And Applmentioning

confidence: 99%