Neutron diffraction effect on the rocking curve of a vibrating single crystal

Mikula, P.; Michalec, R.; Sedláková, L.; Čech, Ján; Chalupa, B.; Petržı́lka, V.

doi:10.1002/pssa.2210170116

Cited by 9 publications

(3 citation statements)

References 13 publications

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“…The values of the angles 0~, 0r and the velocities ~ are calculated and confirmed by experimental results presented in paper of Mikula et al (1973). The values of the angles 0~, 0r and the velocities ~ are calculated and confirmed by experimental results presented in paper of Mikula et al (1973).…”

Section: V(t)-ouyrsupporting

confidence: 80%

Secondary reflexions of neutrons diffracted by a single-crystal bar vibrating at high frequency

Mikula¹,

Michalec²,

Čech³

et al. 1974

Acta Cryst Sect A

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Diffraction of neutrons by a longitudinally vibrating quartz single-crystal bar was investigated for thicknesses of 3 and 13 mm. The 1st, 3rd and 5th harmonic frequencies were excited in the bar. The observed increase of the integrated intensity of diffracted neutrons as a function of the vibration amplitude of longitudinal vibrations of the quartz bar is compared with that calculated from an approximate theory considering the possibility of secondary reflexions of neutrons during their flight across the sample.

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Section: V(t)-ouyrsupporting

confidence: 80%

Secondary reflexions of neutrons diffracted by a single-crystal bar vibrating at high frequency

Mikula¹,

Michalec²,

Čech³

et al. 1974

Acta Cryst Sect A

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“…The ratio R is independent of the resolution of the experimental arrangement [5]. I n the case of the (1, -1) arrangement of the crystals QA a n d Q the cor- is the reciprocal lattice vector.…”

Section: Double-crystal (1 -1) Arrangement Of Two Perfect Single Crymentioning

confidence: 99%

“…The higher resolution of a double-crystal (1, -1) arrangement of Si single crystals was used in the experiment described in [5] where the first Si crystal was excited a t the resonance mechanical frequency by a niagnetostrictive resonator.…”

Section: Introductionmentioning

confidence: 99%

Neutron diffraction by two vibrating quartz single crystals. I. Rocking curve effects

Michalec

Mikula

Sedláková

et al. 1974

Phys. Stat. Sol. (a)

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The broadening of double‐crystal rocking curves of two nearly perfect quartz single‐crystal bars in (1,−1) setting has been investigated in three cases, i.e., when the first or the second or both crystals were excited in longitudinal vibrations. The quartz single‐crystal bars had equal dimensions and therefore they were vibrating with the equal fundamental resonance frequency of longitudinal vibrations. In the course of these experiments the increase of the integrated intensity of diffracted neutrons has been observed in connection with vibrations of one or of both the single crystals. The observed experimental data are interpreted on the basis of the kinematical theory using the structure of the “crystalline layers” of the vibrating single crystal.

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Neutron diffraction by two vibrating quartz single crystals. II. Time modulation effects

Mikula

Michalec

Sedláková

et al. 1974

Phys. Stat. Sol. (a)

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The time modulation of neutrons diffracted by two vibrating nearly perfect quartz single crystals in a double‐crystal (1, − 1) arrangement was investigated while both single crystals were excited in the same resonance frequency. Neutron pulses were observed in the time modulation when the crystals vibrated with different amplitudes. A new simple method for producing a pulsed monochromatic neutron beam supported by the first experimental results is presented.

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Neutron diffraction effect on the rocking curve of a vibrating single crystal

Cited by 9 publications

References 13 publications

Secondary reflexions of neutrons diffracted by a single-crystal bar vibrating at high frequency

Secondary reflexions of neutrons diffracted by a single-crystal bar vibrating at high frequency

Neutron diffraction by two vibrating quartz single crystals. I. Rocking curve effects

Neutron diffraction by two vibrating quartz single crystals. II. Time modulation effects

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