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Pyroelectric accelerator and X-ray source in pulsed mode

Published on Feb 3, 2020in Journal of Instrumentation1.366
路 DOI :10.1088/1748-0221/15/02/c02002
O. O. Ivashchuk1
Estimated H-index: 1
,
A.V. Shchagin8
Estimated H-index: 8
+ 5 AuthorsD.A. Lepeshko
Abstract
The conception of operation of the pyroelectric accelerator and X-ray source in pulsed mode is at first proposed and demonstrated experimentally. The pulsed mode became possible due to application of the additional controlled source of electrons in the pyroelectric accelerator. In the proof-of-principle experiment, the power of X-ray radiation in pulsed mode increased one in common quasi-continuous mode in more than two orders of magnitude. Perspectives for further increasing of the power and application of pulsed pyroelectric X-ray source in fast X-ray imaging are discussed.
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References19
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#1A.S. Kubankin (FIAN: Lebedev Physical Institute)H-Index: 1
#2A. S. Chepurnov (MSU: Moscow State University)H-Index: 24
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In this work we present the results of the experimental studies of the dependence of the X-ray radiation on the temperature change speed of the lithium tantalate monocrystal in the pyroelectric source of the X-ray radiation. We have found an optimized linear temperature speed change pattern for the pyroelectric crystal designed for generation of the X-ray radiation with enhanced capabilities. The studies that were made open an opportunity to determine the most convenient conditions for generatio...
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We report a method of reducing the spot size of an electron beam in a portable pyroelectric electron probe microanalyzer (EPMA) and its application to on-site microanalysis. An electron beam with a spot size of 40 渭m full width at half maximum was achieved by preventing the production of an electric field on the side of a needle tip set on the pyroelectric crystal in the EPMA by coating the side of the tip with an insulating material. This spot size was approximately 10 times smaller than that p...
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#2V. S. Miroshnik (KIPT: Kharkov Institute of Physics and Technology)H-Index: 1
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We present evidence for the production of H2(d,n)3He neutrons in gaseous deuterium by using a pyroelectric crystal as positive ion accelerator. In contrast to previous studies, neutrons were generated without a tip attached to the crystal and without using a solid deuterated target. The deuterium gas provided both the projectile and target nuclei. On the average, 1 neutron/s was obtained in our 鈥渉ot fusion鈥 experimental setup. No neutrons were detected when a tip was used.
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nique [10鈥13]. Previous work [10] was done using a single 30 mm diameter 锟 10 mm thick LiTaO3 crystal, which was cooled below room temperature (240鈥280 K) with liquid nitrogen. The maximum acceleration potential for this system was below 110 keV. In this work we introduced two important new features in pyroelectric neutron generation technology. First, we extended our research of paired-crystal pyroelectric electron accelerators [4] to show that such a system can also be used to accelerate deute...
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