公开(公告)号：US20220035053A1

公开(公告)日：2022-02-03

申请号：US17276415

申请日：2018-11-16

Applicant: Hitachi High-Tech Corporation

Inventor： Akira TAKANO ,  Keiichi TANAKA

IPC: G01T1/16 ,  G01N23/223 ,  G01R33/035

Abstract: To provide a radiation analyzer that can perform analyses by a long-term stable and high energy resolution without correcting a current flowing through a transition edge sensor (hereinafter referred to as TES) or a pulse height value of a signal pulse. The radiation analyzer includes: a TES 1 configured to detect radiation; a current detection mechanism 4 configured to detect a current flowing through the TES 1; a pulse height analyzer 5 configured to measure a pulse height value based on the current detected by the current detection mechanism 4; a baseline monitor mechanism 6 configured to detect a baseline current flowing through the TES 1; a first heater 13 whose output is adjusted to stabilize a temperature of a first thermometer 12 disposed in a cold head that cools the TES 1; and a second heater 14 that is disposed fairly close to the TES 1 and whose output is adjusted to stabilize a baseline current.

公开(公告)号：US20230161053A1

公开(公告)日：2023-05-25

申请号：US17917200

申请日：2020-04-30

Applicant: Hitachi High-Tech Corporation

Inventor： Akira TAKANO ,  Keiichi TANAKA

IPC: G01T1/16 ,  G01N23/2251

CPC classification number: G01T1/1606 ,  G01N23/2251 ,  G01N2223/07 ,  G01N2223/418 ,  G01N2223/507

Abstract: This radiation analysis system comprises a transition edge sensor that detects radiation, a current detection mechanism that detects a current flowing in the transition edge sensor, and a computer sub-system that processes a current detection signal from the current detection mechanism. The computer sub-system is characterized by executing: a process for calculating a baseline current of the current detection signal; a process for calculating a wave height value of a signal pulse produced in the detection signal when the transition edge sensor has detected radiation; a process for acquiring correlation data based on the baseline current and the wave height value; and a process for correcting the wave height value of the signal pulse, or an energy value calculated from the wave height value, on the basis of the correlation data and the baseline current from before production of the signal pulse when radiation having unknown energy is detected by the transition edge sensor.