IP Library Granted Patent US 8,957,388
Granted Patent B2
US 8,957,388 · App. 13/713,134 · Granted Feb 17, 2015

Compensatable muon collider calorimeter with manageable backgrounds

Inventor: Rajendran Raja (Naperville, IL)
Assignee: Fermi Research Alliance, LLC
G01T7/005
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Quick Facts
Patent No.
US 8,957,388
App. No.
13/713,134
Granted
Feb 17, 2015
Kind
B2
Abstract

A method and system for reducing background noise in a particle collider, comprises identifying an interaction point among a plurality of particles within a particle collider associated with a detector element, defining a trigger start time for each of the pixels as the time taken for light to travel from the interaction point to the pixel and a trigger stop time as a selected time after the trigger start time, and collecting only detections that occur between the start trigger time and the stop trigger time in order to thereafter compensate the result from the particle collider to reduce unwanted background detection.

Claims (57)

1. A method for reducing background noise in a particle collider, said method comprising:

identifying an interaction point among a plurality of particles within a particle collider associated with a detector element;

defining a trigger start time for each of at least one pixel as a time taken for light to travel from said interaction point to said at least one pixel and a trigger stop time as a selected time after said trigger start time;

collecting only detections that occur between said start trigger time and said stop trigger time;

counting a total number of hadronic vertices according to a pattern recognition technique;

estimating a missing hadronic energy according to said total number of hadronic vertices; and

deriving a calibration constant associated with said total number of hadronic vertices in order to thereafter compensate a result from said particle collider to reduce unwanted background detection.

2. The method of claim 1 further comprising compensating said result from said particle collider with a vertex counting technique, thereby reducing said unwanted background detection.

3. The method of claim 1 wherein said particle collider comprises a muon collider.

4. The method of claim 1 wherein said selected time associated with said trigger stop time is 2 nanoseconds.

5. The method of claim 1 wherein said detector element comprises a calorimeter, said method further comprising:

forming each of said at least one pixel to have a linear dimension of 200 microns; and

configuring each of said at least one pixel to return a binary response indicating if a charged particle has passed through it.

6. The method of claim 1 wherein said plurality of particles comprise at least one of:

Muons;

Mesons;

Baryons;

Electrons;

Positrons; and

Photons.

7. The method of claim 6 wherein deriving said calibration constant associated with said total number of hadronic vertices is determined using a least squares minimization.

8. A system for reducing background noise in a particle collider comprising:

a detector element associated with a particle collider;

a plurality of particles wherein said particles collide at an interaction point within said particle collider;

at least one pixel associated with said detector element wherein each of said at least one pixel is triggered at a trigger start time defined as a time taken for light to travel from said interaction point to said at least one pixel and deactivated at a trigger stop time defined as a selected time after said trigger start time; and

a data module configured to collect only detections that occur between said trigger start time and said trigger stop time in order to thereafter compensate a result from said particle collider to reduce unwanted background detection by compensating said result from said particle collider with a vertex counting technique comprising:

counting a total number of hadronic vertices according to a pattern recognition technique;

estimating a missing hadronic energy according to said total number of hadronic vertices; and

deriving a calibration constant associated with said total number of hadronic vertices.

9. The system of claim 8 wherein said particle collider comprises a muon collider.

10. The system of claim 9 wherein said selected time associated with said trigger stop time is 2 nanoseconds.

11. The system of claim 8 wherein said detector element comprises a calorimeter wherein each of said at least one pixel has a linear dimension of 200 microns; and

each of said at least one pixel is configured to return a binary response indicating if a charged particle has passed through it.

12. The system of claim 8 wherein said plurality of particles comprise at least one of:

Muons;

Mesons;

Baryons;

Electrons;

Positrons; and

Photons.

13. The system of claim 8 wherein said calibration constant associated with said total number of hadronic vertices is determined using a least squares minimization.

14. A system for reducing background noise in a modeled particle collider said system comprising:

a processor;

a data bus coupled to said processor; and

a computer-usable medium embodying computer code, said computer-usable medium being coupled to said data bus, said computer code comprising instructions executable by said processor configured for:

modeling a detector element associated with a modeled particle collider;

identifying an interaction point of a plurality of modeled particles within said modeled particle collider;

defining a trigger start time for each of at least one pixel associated with said modeled calorimeter as a time taken for light to travel from said interaction point to said at least one pixel and a trigger stop time as a selected time after said trigger start time;

collecting only detections that occur between said start trigger time and said stop trigger time;

counting a total number of hadronic vertices according to a pattern recognition technique;

estimating a missing hadronic energy according to said total number of hadronic vertices; and

deriving a calibration constant associated with said total number of hadronic vertices in order to thereafter compensate a result from said particle collider to reduce unwanted background detection.

15. The system of claim 14 wherein said model particle collider comprises a modeled muon collider.

16. The system of claim 15 wherein said selected time associated with said trigger stop time is 2 nanoseconds.

17. The system of claim 14 wherein said modeled detector element comprises a modeled calorimeter, and said instructions are further configured for:

modeling each of said at least one pixel to have a linear dimension of 200 microns; and

configuring each of said at least one pixel to return a binary response indicating if a charged particle has passed through it.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 30, 2024
From: FERMI RESEARCH ALLIANCE, LLC
To: FERMI FORWARD DISCOVERY GROUP, LLC
Reel/Frame 069795/0347 →
CONFIRMATORY LICENSE Recorded Apr 7, 2022
From: FERMI RESEARCH ALLIANCE, LLC
To: UNITED STATES DEPARTMENT OF ENERGY
Reel/Frame 059532/0469 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 13, 2012
From: RAJA, RAJENDRAN
To: FERMI RESEARCH ALLIANCE, LLC
Reel/Frame 029460/0324 →
Continuity (1)
Related Publication 20140166892A1 · Jun 19, 2014