Granted Patent B1

US 12,405,392 · App. 18/139,082 · Granted Sep 2, 2025

Inventors: Enkeleda Dervishi-Whetham (Los Alamos, NM); Randall Lynn Edwards (Los Alamos, NM); Michael Anthony McBride (Los Alamos, NM); Daniel Edwin Hooks (Los Alamos, NM)

Assignee: Triad National Security, LLC

G01T1/2023

Abstract

Claims (30)

1. A method of manufacturing a scintillator grid array, the method comprising:

preparing a plurality of substrates each comprising a first material;

depositing a layer of a second material onto each of the plurality of substrates to produce a plurality of electroplated substrates;

pressing the plurality of electroplated substrates into a grid array, wherein pressing the plurality of electroplated substrates into the grid array comprises:

positioning the plurality of electroplated substrates within a hot isostatic pressing can;

welding the hot isostatic pressing can closed; and

hot isostatic pressing the plurality of electroplated substrates;

dissolving the first material from the plurality of electroplated substrates of the grid array; and

placing scintillator crystals into the grid array.

2. The method of claim 1 , wherein depositing of the layer of the second material onto each of the plurality of substrates comprises electroplating.

3. The method of claim 1 , wherein the first material comprises steel, a non-metal material, or metal and wherein the second material comprises one of gold, rhenium, bismuth, or a rhenium nickel alloy.

4. The method of claim 1 , wherein pressing the plurality of electroplated substrates into the grid array further comprises exposing the hot isostatic pressing can to elevated temperature and pressure.

5. The method of claim 4 , further comprising:

dissolving the hot isostatic pressing can from the grid array after hot isostatic pressing is completed, and wherein dissolving the hot isostatic pressing can comprises soaking the hot isostatic pressing can in a nitric acid solution.

6. The method of claim 1 , wherein dissolving the first material from the plurality of electroplated substrates comprises etching, and wherein the etching comprises a heated nitric acid bath.

7. The method of claim 1 , further comprising exposing ends of the grid array before dissolving the first material, wherein exposing the ends of the grid array comprises electrical discharge machining.

8. The method of claim 1 , wherein the scintillator crystals comprise Lutetium Oxyorthoscilicate(Ce) (LSO).

9. The method of claim 1 , further comprising using the grid array with the scintillator crystals positioned therein in a detection or imaging device.

10. The method of claim 1 , further comprising depositing a layer of a third material onto the first material prior to depositing the second material onto the plurality of substrates, wherein the third material comprises nickel.

11. The method of claim 1 , wherein the hot isostatic pressing can comprises a shape and dimensions particular to an application for which the grid array with the scintillator crystals will be used.

12. The method of claim 11 , wherein the hot isostatic pressing can is manufactured using either electrical discharge machining or metal sheet forming and wherein the hot isostatic pressing can is cleaned using potassium cyanide, potassium hydroxide, and water.

13. An apparatus, comprising:

scintillator crystals in a grid array; and

a plurality of electroplated substrates pressed into the grid array, wherein pressing the plurality of electroplated substrates into the grid array comprises positioning the plurality of electroplated substrates within a hot isostatic pressing can and hot isostatic pressing the plurality of electroplated substrates, and wherein the hot isostatic pressing can comprises a shape and dimensions particular to an application for which the grid array with the scintillator crystals will be used.

14. The apparatus of claim 13 , wherein each electroplated substrate of the plurality of electroplated substrates comprises:

a substrate comprising first material and a layer of a second material deposited onto the substrate.

15. The apparatus of claim 14 , wherein the first material is dissolved from each electroplated substrate prior to the scintillator crystals being placed into the grid array.

16. The apparatus of claim 14 , wherein the first material comprises steel, metal, or a non-metal material, and wherein the second material comprises one of gold, bismuth, rhenium, or a rhenium nickel alloy.

17. The apparatus of claim 14 , wherein the substrate further comprises a layer of a third material deposited on the first material before the second material is deposited onto the substrate and wherein the third material comprises nickel.

18. The apparatus of claim 13 , wherein the scintillator crystals comprise Lutetium Oxyorthoscilicate (Ce) (LSO).

Assignments (2)

Continuity (1)

References Cited (36)