Observation of higher order parametric x-ray spectra in mosaic graphite and single silicon crystals

Fiorito, R B; Rule, D W; Maruyama, X K; DiNova, K L; Evertson, S J; Osborne, M J; Snyder, D; Rietdyk, H; Piestrup, M A; Ho, A H

doi:10.1103/PhysRevLett.71.704

Title: Observation of higher order parametric x-ray spectra in mosaic graphite and single silicon crystals

Full Record
Other Related Research

Abstract

We have observed up to 8 orders ([ital n]) in the spectra of parametric x-radiation (PXR) in the range 5--40 keV, produced by the interaction of a 90 MeV electron beam with mosaic graphite and single silicon crystals. The measured yields and intensity ratios, [ital I]([ital n][ge]2)/[ital I]([ital n]=1), in graphite are not in agreement with the theory of PXR for mosaic crystals. In comparison, the ratios of intensities in silicon are close to the predictions of PXR theory for perfect crystals. The bandwidths of spectral lines measured in both silicon and graphite are in good agreement with theoretical predictions.

Authors:

Fiorito, R B; Rule, D W; Maruyama, X K; DiNova, K L; Evertson, S J; Osborne, M J; Snyder, D; Rietdyk, H; Piestrup, M A; Ho, A H ^[1]

Research and Technology Department, Naval Surface Warfare Center, Silver Spring, Maryland 20903 (United States) Department of Physics, Naval Postgraduate School, Monterey, California 93943 (United States) Adelphi Technology Inc., Palo Alto, California 94301 (United States)

Publication Date:: Mon Aug 02 00:00:00 EDT 1993

OSTI Identifier:: 6023158

DOE Contract Number:: FG03-91ER81099

Resource Type:: Journal Article

Journal Name:: Physical Review Letters; (United States)

Additional Journal Information:: Journal Volume: 71:5; Journal ID: ISSN 0031-9007

Country of Publication:: United States

Language:: English

Subject:: 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; GRAPHITE; ELECTRON COLLISIONS; X-RAY SPECTRA; SILICON; ELECTRON BEAMS; MEV RANGE 10-100; MONOCRYSTALS; MOSAICISM; YIELDS; BEAMS; CARBON; COLLISIONS; CRYSTALS; ELEMENTAL MINERALS; ELEMENTS; ENERGY RANGE; LEPTON BEAMS; MEV RANGE; MINERALS; NONMETALS; PARTICLE BEAMS; SEMIMETALS; SPECTRA; 665300* - Interactions Between Beams & Condensed Matter- (1992-)

Citation Formats


                    Fiorito, R B, Rule, D W, Maruyama, X K, DiNova, K L, Evertson, S J, Osborne, M J, Snyder, D, Rietdyk, H, Piestrup, M A, and Ho, A H. Observation of higher order parametric x-ray spectra in mosaic graphite and single silicon crystals.  United States: N. p., 1993. 
        Web.  doi:10.1103/PhysRevLett.71.704.

Copy to clipboard


                    Fiorito, R B, Rule, D W, Maruyama, X K, DiNova, K L, Evertson, S J, Osborne, M J, Snyder, D, Rietdyk, H, Piestrup, M A, & Ho, A H. Observation of higher order parametric x-ray spectra in mosaic graphite and single silicon crystals.  United States.  https://doi.org/10.1103/PhysRevLett.71.704

Copy to clipboard


                    Fiorito, R B, Rule, D W, Maruyama, X K, DiNova, K L, Evertson, S J, Osborne, M J, Snyder, D, Rietdyk, H, Piestrup, M A, and Ho, A H. 1993.  
        "Observation of higher order parametric x-ray spectra in mosaic graphite and single silicon crystals".  United States.  https://doi.org/10.1103/PhysRevLett.71.704.

Copy to clipboard


                    
@article{osti_6023158,

  title        = {Observation of higher order parametric x-ray spectra in mosaic graphite and single silicon crystals},

  author       = {Fiorito, R B and Rule, D W and Maruyama, X K and DiNova, K L and Evertson, S J and Osborne, M J and Snyder, D and Rietdyk, H and Piestrup, M A and Ho, A H},

  abstractNote = {We have observed up to 8 orders ([ital n]) in the spectra of parametric x-radiation (PXR) in the range 5--40 keV, produced by the interaction of a 90 MeV electron beam with mosaic graphite and single silicon crystals. The measured yields and intensity ratios, [ital I]([ital n][ge]2)/[ital I]([ital n]=1), in graphite are not in agreement with the theory of PXR for mosaic crystals. In comparison, the ratios of intensities in silicon are close to the predictions of PXR theory for perfect crystals. The bandwidths of spectral lines measured in both silicon and graphite are in good agreement with theoretical predictions.},

  doi          = {10.1103/PhysRevLett.71.704},

  url          = {https://www.osti.gov/biblio/6023158},
  journal      = {Physical Review Letters; (United States)},

  issn         = {0031-9007},

  number       = ,

  volume       = 71:5,

  place        = {United States},

  year         = {Mon Aug 02 00:00:00 EDT 1993},

  month        = {Mon Aug 02 00:00:00 EDT 1993}

}

Copy to clipboard

Journal Article:

https://doi.org/10.1103/PhysRevLett.71.704

Other availability

Find in Google Scholar

Search WorldCat to find libraries that may hold this journal

Save / Share:

Export Metadata

Save to My Library

Similar records in OSTI.GOV collections:

Higher order parametric x-ray spectra in mosaic graphite and single silicon crystals

Conference Fiorito, R; Rule, D; Maruyama, X

We have observed up to eight orders (n) in the spectra of parametric x-radiation, in the range 5-40 keV, produced by interaction of a 90-MeV electron beam with mosaic graphite and 90 and 35 MeV beams with single Si crystals, Measured yields and intensity ratios, I(n{ge}2)/I(n=1), in graphite are not in agreement with PXR theory for mosaic crystals. In comparison, yield and ratios of intensities in Si are close to preductions for perfect crystals. Bandwidths of spectral lines measured in both Si and graphite are in good agreement with theory and are determined by the angular field of view ofmore » the detector.« less
Full Text Available
Polarized angular distributions of parametric x radiation and vacuum-ultraviolet transition radiation from relativistic electrons

Journal Article Fiorito, R; Rule, D; Piestrup, M; ... - Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics

We present quantifiable images of the angular distributions (AD`s) of parametric x radiation (PXR), and vacuum-ultraviolet transition radiation (vuv TR) from 230 MeV electrons interacting with a silicon crystal. Both AD`s are highly polarized. The vuv TR and optical TR data provide measurements of the beam energy and effective divergence angle. Using these quantities and separately known values of the electronic susceptibility {vert_bar}{chi}{sub 0}{vert_bar}, we show that the measured PXR AD is in good agreement with the predictions of single crystal theory. Our analysis suggests a method to measure {vert_bar}{chi}{sub 0}{vert_bar} using PXR AD`s.
https://doi.org/10.1103/PhysRevE.51.R2759
Experimental considerations of higher order parametric x-rays from silicon crystals of varying thicknesses. Master's thesis

Technical Report Evertson, S

Generation of parametric x-radiation (PXR) may be described as the Bragg scattering of virtual photons to produce real x-rays which satisfy the Bragg condition N lambda = 2d sin theta sub B where theta sub B is the angle between the electron beam and the crystal plane. Enhanced higher order parametric s-radiation from the <220> and the <111> planes of silicon crystals of varying thicknesses were observed, Production of PXR of order n=1 for both planes of a 20 u m thick crystal and orders n=1, and n=2 of the <220> and the n=1, n=3, and n=4 of the <111>more »« less
Observation of Parametric X-Rays Produced by 400-GeV/C Protons in Bent Crystals

Journal Article Scandale, W; Arduini, G; Assmann, R; ... - Physics Letters B

Spectral maxima of parametric X-ray radiation (PXR) produced by 400 GeV/c protons in bent silicon crystals aligned with the beam have been observed in an experiment at the H8 external beam of the CERN SPS. The total yield of PXR photons was about 10{sup -6} per proton. Agreement between calculations and the experimental data shows that the PXR kinematic theory is valid for bent crystals with sufficiently small curvature as used in the experiment. The intensity of PXR emitted from halo protons in a bent crystal used as a primary collimator in a circular accelerator may be considered as amore »« less
Observation of parametric X-rays produced by 400 GeV/c protons in bent crystals

Journal Article Scandale, W; Robert-Demolaize, G; Arduini, G; ... - Physics Letters, (Section) B

Spectral maxima of parametric X-ray radiation (PXR) produced by 400 GeV/c protons in bent silicon crystals aligned with the beam have been observed in an experiment at the H8 external beam of the CERN SPS. The total yield of PXR photons was about 10{sup -6} per proton. Agreement between calculations and the experimental data shows that the PXR kinematic theory is valid for bent crystals with sufficiently small curvature as used in the experiment. The intensity of PXR emitted from halo protons in a bent crystal used as a primary collimator in a circular accelerator may be considered as amore »« less
https://doi.org/10.1016/j.physletb.2011.05.060

Similar Records