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Electron and positive ion acceleration with pyroelectric crystals
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View: Figures


Image of FIG. 1.
FIG. 1.

Experimental geometry for bremsstrahlung energy measurements for a paired-crystal system. (A cooling phase is depicted.)

Image of FIG. 2.
FIG. 2.

Experimental geometry for the direct measurement of electron emission from a single-crystal pyroelectric source.

Image of FIG. 3.
FIG. 3.

Spectrum showing that the electrons emitted from a single-crystal pyroelectric crystal at a given time are nearly monoenergetic and can have an energy of .

Image of FIG. 4.
FIG. 4.

X-ray spectrum showing the bremsstrahlung and characteristic x-ray production from a paired-crystal pyroelectric source. The endpoint energy shows that the maximum electron energy from a paired-crystal system must be at least .

Image of FIG. 5.
FIG. 5.

Experimental geometry for the detection of positive ions accelerated by the potential from a pyroelectric crystal.

Image of FIG. 6.
FIG. 6.

Positive-ion spectra for a lithium tantalate driven source during cooling. The positive-ion peak changes in energy as the crystal cools.

Image of FIG. 7.
FIG. 7.

Positive-ion spectra for a lithium niobate driven source during cooling. The peak which changes in energy is caused by positive ions, while the peak that stays stationary is due to characteristic x-ray emission from the electrons striking the crystal.

Image of FIG. 8.
FIG. 8.

Spectrum showing pileup peaks for electrons emitted by a crystal.

Image of FIG. 9.
FIG. 9.

Comparison of observed pileup peak area to calculated pileup expected from a random emission source.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Electron and positive ion acceleration with pyroelectric crystals