US 12,405,234 B2
Sample holder for an X-ray analysis apparatus
Milen Gateshki, Almelo (NL); Detlef Beckers, Almelo (NL); and Jan Vugteveen, Almelo (NL)
Assigned to Malvern Panalytical B.V., Almelo (NL)
Appl. No. 18/014,401
Filed by Malvern Panalytical B.V., Almelo (NL)
PCT Filed Aug. 26, 2021, PCT No. PCT/EP2021/073622
§ 371(c)(1), (2) Date Jan. 4, 2023,
PCT Pub. No. WO2022/043440, PCT Pub. Date Mar. 3, 2022.
Claims priority of application No. 20192983 (EP), filed on Aug. 26, 2020.
Prior Publication US 2023/0258584 A1, Aug. 17, 2023
Int. Cl. G01N 23/20025 (2018.01); G01N 23/207 (2018.01)
CPC G01N 23/20025 (2013.01) [G01N 23/207 (2013.01); G01N 2223/056 (2013.01); G01N 2223/1016 (2013.01); G01N 2223/307 (2013.01); G01N 2223/309 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A sample holder for holding a sample, the sample holder comprising:
a body having a base and an incident surface;
an opening (7) in the body for receiving the sample, the opening extending from the incident surface towards the base; and
wherein the incident surface comprises a plurality of concentric protrusion for blocking at least some X-rays incident on the incident surface and a plurality of recesses, wherein the protrusions are is formed in a region surrounding the opening.
 
9. A method of carrying out X-ray analysis of a sample, the method comprising:
providing a sample holder, the sample holder comprising:
a body having an incident surface and a base;
an opening in the incident surface for receiving the sample, the opening extending from the incident surface towards the base, wherein the incident surface comprises a plurality of concentric protrusions for blocking at least some incident X-rays and a plurality of recesses;
the method further comprising:
inserting the sample into the opening of the sample holder; and
irradiating the sample and the area surrounding the sample with a plurality of X-rays, such that the protrusion and the opening are irradiated by the X-rays, wherein the incident angle of the X-rays is less than 1.5 degrees.
 
14. A sample holder for holding a sample, the sample holder comprising:
a body having a base and an incident surface;
an opening in the body for receiving the sample, the opening extending from the incident surface towards the base; and
wherein the incident surface comprises:
a protrusion for blocking at least some X-rays incident on the incident surface; and
a recess that forms a spiral shape; and
wherein the protrusion and the recess are formed in a region surrounding the opening.
 
17. A sample holder for holding a sample, the sample holder comprising:
a body a base and an incident surface;
an opening in the body for receiving the sample, the opening extending from the incident surface towards the base; and
wherein the incident surface comprises a plurality of protrusions for blocking at least some X-rays incident on the incident surface and a plurality of recesses, wherein the protrusions are formed in a region surrounding the opening and wherein the protrusions and recesses define a substantially circularly symmetric pattern.