Open AccessParametric down conversion of X‐ray photons
Author(s) -
Adams Bernhard,
Fernandez Patricia,
Lee WahKeat,
Materlik Gerhard,
Mills Dennis M.,
Novikov Dmitri V.
Publication year - 2000
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049599015113
Subject(s) - coincidence , photon , physics , parametric statistics , optics , spontaneous parametric down conversion , phase matching , detector , spectral line , energy (signal processing) , diamond , computational physics , atomic physics , materials science , statistics , mathematics , quantum mechanics , medicine , laser , alternative medicine , pathology , quantum entanglement , composite material , quantum
Parametric down conversion of X‐ray photons in diamond crystals was detected in two experiments, both using the phase‐matching scheme first employed in the X‐ray regime by Eisenberger & McCall [ Phys. Rev. Lett. (1971), 26 , 684–688]. The conversion events were detected by a combination of time‐correlation spectroscopy and energy discrimination, using Si drift‐chamber detectors. The time‐correlation spectra give a direct comparison of the conversion rate over the accidental coincidence rate. Mechanisms for possible detection of false events and ways to cross check against them are discussed in detail.