New aspect of intermediate energy heavy ion reactions. Large spin polarization of fragments

Asahı, K.; Ishihara, M.; Inabe, N.; Ichihara, T.; Kubo, T.; Adachi, Mitsuru; Takanashi, Hiroshi; Kouguchi, M.; Fukuda, M.; Mikolas, D.; Morrissey, D. J.; Beaumel, D.; Shimoda, T.; Miyatake, H.; Takahashi, Naohiko

doi:10.1016/0370-2693(90)90784-4

Cited by 122 publications

(71 citation statements)

References 19 publications

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“…A few percent nuclear polarization is typically realized from these reactions [1,2]. Generally, alignment and higher-order tensor polarizations may also be produced, depending on the experimental conditions and the nuclear spin.…”

Section: β-Nqr Techniquementioning

confidence: 99%

“…Fast rare isotope beams are considered here and the polarization is produced in projectile-fragmentation [1] or nucleon pick-up [2] reactions. Nuclear moments of such unstable nuclei, whose production rates become small as the nuclei move further from the stability line, are measured with the β-ray detecting Nuclear Magnetic Resonance (β-NMR) technique [3,4].…”

Section: Introductionmentioning

confidence: 99%

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Fast-switching NMR system for measurements of ground-state quadrupole moments of short-lived nuclei

Minamisono

Weerasiri

Crawford

et al. 2008

Nuclear Instruments and Methods in Physics Research Section A:

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A β-ray detecting nuclear quadrupole resonance system has been developed at NSCL/MSU to measure ground-state electric quadrupole moments of short-lived nuclei produced as fast rare isotope beams. This system enables quick and sequential application of multiple transition frequencies over a wide range. Fast switching between variable capacitors in resonance circuits ensures sufficient power delivery to the coil in the β-ray detecting nuclear magnetic resonance technique. The fast switching technique enhances detection efficiency of resonance signals and is espe- Preprint submitted to Elsevier 3 February 2018cially useful when the polarization and/or production rate of the nucleus of interest are small and when the nuclear spin is large.

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Section: β-Nqr Techniquementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fast-switching NMR system for measurements of ground-state quadrupole moments of short-lived nuclei

Minamisono

Weerasiri

Crawford

et al. 2008

Nuclear Instruments and Methods in Physics Research Section A:

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“…In such a scheme magnitude of the spin alignment occurring in the final nucleus A F is expected to be high by virtue of the simplicity of the reaction [1]. In a simple scheme of this two-step PF, an RI beam of interest is produced after twofold momentum selections by slits, the first of which selects the momentum of the secondary beam and the second one the outgoing momentum of the secondary beam.…”

Section: Principlementioning

confidence: 99%

“…The mechanism of spin orientation in RI beams in a projectile fragmentation (PF) reaction was first revealed in 1990 [1]. The fragmentation of a projectile nucleus in high-energy nucleus-nucleus collisions is described remarkably well by a simple model of ''participantspectator'' [2], that assumes the projectile-like fragment, produced in the PF reaction, to be a mere spectator of the projectile nucleus.…”

Section: Introductionmentioning

confidence: 99%

Spin-aligned RI beams via two-step fragmentation reactions

Ichikawa

Ueno

Ishii

et al. 2013

Nuclear Instruments and Methods in Physics Research Section B:

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a b s t r a c tA method to produce spin-aligned rare isotope (RI) beams has been developed, where a scheme of twostep projectile fragmentation to produce the RI of interest with high spin alignment and a technique of momentum-dispersion matching are combined. Effectiveness of the present method was demonstrated in an experiment at the RIKEN RIBF, where an RI beam of 32 Al with spin alignment of 8(1)% was successfully produced from a primary beam of 48 Ca, via an intermediate RI of 33 Al. Figure of merit of the present method was found to be more than 50 times greater than that of the conventional method employing single-step projectile fragmentation.

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“…For this 'kind of decision, information on the polarization mechanism is very important. Although the energy and the mass ranges are different, data from the intermediate energy region studied at RIKEN by Asahi et al [19] are also helpful for the choice of the conditions.…”

Section: B) Reaction Polarizationmentioning

confidence: 99%

Production of unstable nuclei far from the stability line: its scope and limitations

et al. 1993

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New aspect of intermediate energy heavy ion reactions. Large spin polarization of fragments

Cited by 122 publications

References 19 publications

Fast-switching NMR system for measurements of ground-state quadrupole moments of short-lived nuclei

Fast-switching NMR system for measurements of ground-state quadrupole moments of short-lived nuclei

Spin-aligned RI beams via two-step fragmentation reactions

Production of unstable nuclei far from the stability line: its scope and limitations

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