Observation of multiple nearly monoenergetic electron production by heated pyroelectric crystals in ambient gas

Brownridge, J. D.; Shafroth, S. M.; Trott, D. W.; Stoner, B. R.; Hooke, W. M.
February 2001
Applied Physics Letters;2/19/2001, Vol. 78 Issue 8, p1158
Academic Journal
Multiple production of nearly monoenergetic electrons at a given pyroelectric crystal surface charge density is observed on cooling or heating the crystal in ambient gas. Typically, the +z base of a 5 mm diamx5 mm crystal of LiNbO[sub 3] is heated to 100 °C and then let cool to 23 °C in dry N[sub 2] at 10[sup -2]-10[sup -6] Torr. The electron spectrum consists of a series of peaks equally spaced in energy and having decreasing intensity with order superimposed on a continuously decreasing background. The higher-order peaks and the high-energy continuum are due to two or more electrons hitting the surface barrier detector within its resolving time (∼1 μs). © 2001 American Institute of Physics.


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