Radioisotope production o-18 water target having improved cooling performance
a technology of radioisotopes and target apparatus, which is applied in the direction of nuclear targets, nuclear engineering, conversion outside reactors/accelerations, etc., can solve problems such as unfavorable life span influence, and achieve the effect of improving cooling performan
Inactive Publication Date: 2010-11-25
KOREA INST OF RADIOLOGICAL & MEDICAL SCI
View PDF5 Cites 13 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
The present invention provides a target apparatus with an improved structure for effective cooling of O-18 water during a nuclear reaction. The apparatus includes a cavity member containing O-18 water and producing F-18 through a nuclear reaction between the H218O concentrate and protons irradiated onto the O-18 water. The cavity member has openings and a thermo-chemically stable layer plated with titanium or niobium is formed in the inner circumference of the cavity. The apparatus also includes a front membrane, a rear cover, a front cooling member, a central cooling member, and a rear cooling member. The front cooling member prevents the front membrane from swelling due to pressure increases in the cavity during the nuclear reaction. The central cooling member supplies cooling water around the cavity. The rear cooling member allows the cooling water to be supplied. The apparatus also includes a plurality of through holes, a space for supplying cooling water, and a honeycomb shape of the through holes. The front membrane and the rear cover may be made of titanium or niobium. The plated second cooling fins prevent fouling and corrosion. The technical effects of the invention include improved cooling performance, reduced pressure increases, and improved stability of the target apparatus during a nuclear reaction.
Problems solved by technology
Such conditions unfavorably influence the life span of the O-18 water (H218O) target apparatus.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0032]The present invention will now be described more fully with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown.
[0033]FIG. 1 is a schematic perspective view of a O-18 water (H218O) target apparatus 10 (hereinafter, referred to as “target apparatus”), according to an embodiment of the present invention. FIG. 2 is an enlarged cross-sectional view of a portion “A” of FIG. 1. FIG. 3 is an enlarged view of a portion “B” of FIG. 1. FIG. 4 is a cross-sectional view of the target apparatus 10. FIG. 5 is an enlarged cross-sectional view of a portion “C” of FIG. 4. FIG. 6 is an exploded perspective view of the target apparatus 10, viewed from a first direction for explaining the main elements. FIG. 7 is an enlarged view of a portion “D” of FIG. 6. FIG. 8 is an enlarged view of a portion “E” of FIG. 6. FIG. 9 is an exploded perspective view of the target apparatus 10, viewed from a second) direction. FIG. 10 is an enlarged view of a portion “...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
| volume | aaaaa | aaaaa |
Login to View More
Abstract
A target apparatus for producing a radioisotope having improved cooling performance including a cavity member including a cavity accommodating H218O concentrate and producing 18F through a nuclear reaction between the H218O concentrate and protons irradiated onto the H218O concentrate, wherein the cavity member includes a front aperture and a rear aperture disposed in opposite directions on a path in which the protons are irradiated and connected to the cavity so that the cavity has openings. wherein a thermo-chemically stable layer plated with titanium or niobium is formed in an inner circumference of the cavity.
Description
CROSS-REFERENCE TO RELATED PATENT APPLICATION[0001]This application claims the benefit of Korean Patent Application No. 10-2009-0044118, filed on May 20, 2009, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein in its entirety by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a radioisotope O-18 water (H218O) target apparatus having improved cooling performance in order to reduce heat generated and pressure increase in a cavity when a high current of given energy of protons is irradiated to produce a radioactive isotope F-18 through a nuclear reaction between the protons and the O-18 water (H218O).[0004]The present invention is derived from a research project supported by the Atomic Energy Research & Development (R&D) Program of the Ministry of Education, Science, and Technology [M2070605000108M060500110, Development of Superconducting Cyclotron Main Technology].[0005]2. Description o...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & AuthorityApplications(United States)
IPC IPC(8): C25B11/03
CPCG21G1/10H05H6/00G21G2001/0015G21G1/00
InventorHONG, BONG HWANHWANG, WON TAEKLEE, MIN YONGYANG, TAE KEUNKIM, YOU SEOK
OwnerKOREA INST OF RADIOLOGICAL & MEDICAL SCI