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Title: Neutron generation using pyroelectric crystals

Abstract

According to one embodiment, a method for producing a directed neutron beam includes producing a voltage of negative polarity of at least −100 keV on a surface of a deuterated or tritiated target in response to a temperature change of a pyroelectric crystal of less than about 40° C., the pyroelectric crystal having the deuterated or tritiated target coupled thereto, pulsing a deuterium ion source to produce a deuterium ion beam, accelerating the deuterium ion beam to the deuterated or tritiated target to produce a neutron beam, and directing the ion beam onto the deuterated or tritiated target to make neutrons using at least one of a voltage of the pyroelectric crystal, and a high gradient insulator (HGI) surrounding the pyroelectric crystal. The directionality of the neutron beam is controlled by changing the accelerating voltage of the system. Other methods are presented as well.

Inventors:
; ; ; ; ; ; ; ; ;
Issue Date:
Research Org.:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1824002
Patent Number(s):
11019717
Application Number:
15/279,214
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
Patent Classifications (CPCs):
G - PHYSICS G21 - NUCLEAR PHYSICS G21G - CONVERSION OF CHEMICAL ELEMENTS
H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05H - PLASMA TECHNIQUE
DOE Contract Number:  
AC52-07NA27344
Resource Type:
Patent
Resource Relation:
Patent File Date: 09/28/2016
Country of Publication:
United States
Language:
English

Citation Formats

Tang, Vincent, Meyer, Glenn A., Falabella, Steven, Guethlein, Gary, Rusnak, Brian, Sampayan, Stephen E., Spadaccini, Christopher M., Wang, Li-Fang, Harris, John, and Morse, Jeff. Neutron generation using pyroelectric crystals. United States: N. p., 2021. Web.
Tang, Vincent, Meyer, Glenn A., Falabella, Steven, Guethlein, Gary, Rusnak, Brian, Sampayan, Stephen E., Spadaccini, Christopher M., Wang, Li-Fang, Harris, John, & Morse, Jeff. Neutron generation using pyroelectric crystals. United States.
Tang, Vincent, Meyer, Glenn A., Falabella, Steven, Guethlein, Gary, Rusnak, Brian, Sampayan, Stephen E., Spadaccini, Christopher M., Wang, Li-Fang, Harris, John, and Morse, Jeff. Tue . "Neutron generation using pyroelectric crystals". United States. https://www.osti.gov/servlets/purl/1824002.
@article{osti_1824002,
title = {Neutron generation using pyroelectric crystals},
author = {Tang, Vincent and Meyer, Glenn A. and Falabella, Steven and Guethlein, Gary and Rusnak, Brian and Sampayan, Stephen E. and Spadaccini, Christopher M. and Wang, Li-Fang and Harris, John and Morse, Jeff},
abstractNote = {According to one embodiment, a method for producing a directed neutron beam includes producing a voltage of negative polarity of at least −100 keV on a surface of a deuterated or tritiated target in response to a temperature change of a pyroelectric crystal of less than about 40° C., the pyroelectric crystal having the deuterated or tritiated target coupled thereto, pulsing a deuterium ion source to produce a deuterium ion beam, accelerating the deuterium ion beam to the deuterated or tritiated target to produce a neutron beam, and directing the ion beam onto the deuterated or tritiated target to make neutrons using at least one of a voltage of the pyroelectric crystal, and a high gradient insulator (HGI) surrounding the pyroelectric crystal. The directionality of the neutron beam is controlled by changing the accelerating voltage of the system. Other methods are presented as well.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 25 00:00:00 EDT 2021},
month = {Tue May 25 00:00:00 EDT 2021}
}

Works referenced in this record:

Neutron Generator
patent-application, May 2009


Neutron Interrogation Systems Using Pyroelectric Crystals and Methods of Preparation Thereof
patent-application, May 2012


Long Life High Efficiency Neutron Generator
patent-application, February 2011


Neutron Generator Target Assembly
patent, January 1975


Compact Neutron Source and Moderator
patent-application, March 2010