NDLI: Cross section of /sup 3/He(/sup 3/He,2p)/sup 4/He measured over the range of 45 to 26 keV

Content Provider	IEEE Xplore Digital Library
Author	Kudomi, N. Itahashi, T. Yoshida, S. Takahisa, K. Ejiri, H. Toki, H. Nagai, Y. Komori, M. Ohsumi, H.
Copyright Year	2002
Description	Author affiliation: Res. Center for RCNP, Osaka Univ., Japan (Kudomi, N.; Itahashi, T.; Yoshida, S.; Takahisa, K.; Ejiri, H.; Toki, H.; Nagai, Y.)
Abstract	We have measured the nuclear fusion cross section for /sup 3/He(/sup 3/He, 2p)/sup 4/He near the solar Gamow peak with a compact accelerator facility OCEAN and with an assembly of counter telescopes with a detection efficiency of 10%. The data obtained at E/sub cm/ = 45.3 to 31.2 keV improved the existing astrophysical S-factors in statistical and systematic errors. A Monte Carlo simulation program exploiting GEANT3, SRIM and GENBOD computer codes has been developed to estimate the detection efficiency for two proton coincidences with /spl Delta/E-E telescopes. The precision of the developed program has been investigated by comparing the simulated results with the experimental values for the cross section of the D(/sup 3/He,p)/spl alpha/ reaction carried out by replacing the target with D gas. It turned out that the present study involves around 3% systematic errors for an estimation of the detection efficiency. The overall systematic errors for these data from 45.3 to 31.2 keV is 3.8%, that is as good as those of the previous experiments. The latest data obtained at 29.1 and 26.9 keV with large statistical and systematic errors show considerable larger S-factors than previous. An enhancement of the astrophysical S-factor might be expected by the existence of a certain resonance as well as by an atomic effect on the screening potential near the solar Gamow energy.
Starting Page	427
Ending Page	431
File Size	1652534
Page Count	5
File Format	PDF
ISBN	0780373243
ISSN	10823654
DOI	10.1109/NSSMIC.2001.1008492
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-11-04
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Helium Telescopes Extraterrestrial measurements Sea measurements Nuclear measurements Fusion reactors Oceans Assembly Counting circuits Computer errors
Content Type	Text
Resource Type	Article

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MEASUREMENTS OF THE MUON-CAPTURE RATE IN He$sup 3$ AND He$sup 4$ (thesis)

THERMODYNAMIC PROPERTIES OF LIQUID $sup 3$He/$sup 4$He MIXTURES NEAR THE TRICRITICAL POINT DERIVED FROM SPECIFIC HEAT MEASUREMENTS.

EXCHANGE EFFECTS IN $sup 3$He + $sup 4$He SCATTERING.

SPIN DIFFUSION OF DILUTE $sup 3$He--$sup 4$He SOLUTIONS UNDER PRESSURE.

Neutron Response Functions Improved By Taking Into Consideration Measured Edge Effect Of /sup 3/He Proportional Counter

Nonlinearity of pulse height of recoil helium in /sup 3/He proportional counters

POLARIZATION AND CROSS-SECTION MEASUREMENTS IN p-$sup 4$He SCATTERING FROM 20 TO 40 MeV.

Status of cross-section data for gas production from vanadium and {sup 26}AL from silicon carbide in a D-T fusion reactor.

THE 1962 He$sup 3$ SCALE OF TEMPERATURES. II. DERIVATION

Cross section of /sup 3/He(/sup 3/He,2p)/sup 4/He measured over the range of 45 to 26 keV

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