US 12,438,509 B2
Extended energy range particle detectors and uses thereof
Ashley Antony Gomez, Boston, MA (US); Ronald Knepper, Andover, MA (US); and Brian Walsh, Newton, MA (US)
Assigned to Trustees of Boston University, Boston, MA (US)
Filed by Trustees of Boston University, Boston, MA (US)
Filed on Jun. 6, 2024, as Appl. No. 18/736,184.
Claims priority of provisional application 63/521,374, filed on Jun. 16, 2023.
Prior Publication US 2025/0175135 A1, May 29, 2025
Int. Cl. H03F 3/70 (2006.01); G01T 1/17 (2006.01); H03F 3/00 (2006.01)
CPC H03F 3/70 (2013.01) [G01T 1/17 (2013.01); H03F 3/005 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An energy detection system for measuring an external energy source comprising:
a detector configured to detect an electric charge from the external energy source and produce a current;
a charge sensitive amplifier (CSA) configured to receive the current from the detector and produce a voltage signal, the CSA including: a first switch controlling a circuit path to a first switchable capacitor having a first capacitance; and a second switch controlling a circuit path to a second switchable capacitor having a second capacitance, the second capacitance greater than the first capacitance,
wherein:
the first switch is configured such that when the electric charge exceeds a first threshold, the first switch closes the circuit path to the first switchable capacitor; and
the second switch is configured such that when the electric charge exceeds a second threshold, the second switch closes the circuit path to the second switchable capacitor, wherein the second threshold is greater than the first threshold.