US 8,913,707 B2Granted

Photoneutron conversion target

AssigneesTsinghua University, Nuctech Company Limited

InventorsKejun Kang, Haifeng Hu, Yigang Yang, Zhiqiang Chen, Qitian Miao, Jianping Cheng, Yuanjing Li, Yinong Liu, Hua Peng, Tiezhu Li, Ziran Zhao, Yaohong Liu, Wanlong Wu

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Abstract

A photoneutron conversion target for generating photoneutrons by directing an x-ray beam at the photoneutron conversion target includes an elongated body having a first end and a second end. When the photoneutron conversion target is in use, the x-ray beam enters the body and propagates in a direction from the first end to the second end. The body of the photoneutron conversion target is shaped such that propagation of the x-ray beam is substantially proportionate to an intensity distribution of the x-ray beam, so that the greater an intensity of x-rays of the x-ray beam, the greater the propagation distance of the x-rays within the body of the photoneutron conversion target. The photoneutron conversion target according to the invention can make full use of the x-ray beam so as to increase a yield of photoneutrons.

Claims12

Dependent claims

A photoneutron conversion device for generating photoneutrons, the photoneutron conversion device comprising:

an x-ray beam generator configured to generate an x-ray beam;
and
a photoneutron conversion target comprising a body that:
(a) includes a first end, a second end, a cylindrical portion adjacent the first end, and a tapered portion adjacent to, and that tapers toward, the second end;
and
(b) is structured and arranged relative to the x-ray beam generator to cause at least a portion of the x-ray beam, when generated by the x-ray beam generator, to impinge upon and propagate through material of the body in a direction from the first end of the body to the second end of the body to generate the photoneutrons;
wherein the propagation which the body of the photoneutron conversion target is structured to cause is substantially proportionate to an intensity distribution of the x-ray beam, so that the greater an intensity of rays of the x-ray beam that impinge upon and propagate through material of the body, the greater the distance of the path of the rays within the body from entry into the body until exit from the body.

4 more elements

A photoneutron conversion target for generating photoneutrons, the photoneutron conversion target comprising:

a body, wherein:
the body includes a first section and a second section;
the first section extends about a central longitudinal axis of the body from a first end of the body to the second section;
an exterior of the body in the first section is cylindrically;
the exterior of the body in the second section tapers between the first section and a second end of the body;
and
the body is structured to, when an x-ray beam is applied to the photoneutron conversion target, cause the x-ray beam to enter the body and cause at least a portion of the x-ray beam to propagate:
in a direction from the first end to the second end to generate the photoneutrons;
and
substantially proportionate to an intensity distribution of the x-ray beam, so that the greater an intensity of x-rays of the portion of the x-ray beam, the greater the propagation distance of the x-rays of the portion within the body of the photoneutron conversion target.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/665,306Filed 19 Jun 2008 · continuation in part
Priority: CN 2005 1 00867643 Nov 2005
Published: US 2010/0243874 A130 Sep 2010
Granted: 16 Dec 2014
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

G21B 1/19
Details: targets for producing thermonuclear fusion reactions, e.g. pellets for irradiation by laser or charged particle beams
H05H 6/00
Targets for producing nuclear reactions
C09D 5/1606
Antifouling paints; Underwater paints: characterised by the anti-fouling agent
G21G 4/02
Radioactive sources: neutron sources

Family

Application11/353,472Parent of this continuation-in-part · filed 14 Feb 2006
US 2010/0243874 A1Pre-grant publication · published 30 Sep 2010
US 7,399,976 B2Parent of this continuation-in-part
US 2007/0096036 A1Published application
US 8,913,707 B2This patent

From the US filing history. Foreign family members aren’t listed.