A high-precision calorimeter for measuring high-energy x-ray energy and its manufacturing method

Abstract

The invention relates to a high-precision calorimeter for measuring high-energy X-ray energy and a manufacturing method thereof, which mainly solves the problems of narrow measurement range, difficult calibration, low measurement accuracy and influence on the output cable head signal of the existing calorimeter. The high-precision calorimeter includes a temperature-measuring element, and the temperature-measuring element includes a thermocouple or a thermistor; the outside of the temperature-measuring element is encapsulated as a glass body through glass, and the surface of the glass body opposite to the device under test is arranged to be about the glass body Center symmetrical curved surface; the outside of the glass body is provided with an inner lead layer, an inner aluminum alloy layer, an outer aluminum alloy layer and an outer aluminum layer in sequence; a first gap is arranged between the inner lead layer and the inner aluminum alloy layer; the A second gap is set between the inner aluminum alloy layer and the outer aluminum alloy layer; the lead-out cables of the thermocouples or thermistors are led out from the cable glass packaging for connection with the measurement system.

Description

technical field [0001] The invention relates to the field of interaction between high-power high-current pulsed electron beams and matter, and relates to a high-precision calorimeter for measuring high-energy X-ray energy and a manufacturing method thereof. Background technique [0002] Large-dose high-energy x-rays (>100KeV, >1rad) are often produced by the interaction of high-power and high-current pulsed electron beams, and the measurement of their energy is a difficult point in the field of pulse power. Current measurement equipment for x-ray energy mainly includes scintillator detectors, x-ray diodes, semiconductor detectors (PIN) and calorimeters. Due to its simple principle and flat spectral response, the calorimeter is widely used in X-ray energy measurement. The main principle of the calorimeter is: when X-rays are irradiated on the thermistor or thermocouple, the energy deposited on the material will cause the temperature of the thermistor or thermocouple to...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of narrow measurement range, difficult calibration, low measurement accuracy and affecting the output cable head signal of the existing calorimeter, and to provide a high-precision calorimeter for measuring high-energy x-ray energy and its production method, the calorimeter is aimed at the measurement of high-dose high-energy x-rays (>100KeV,>1rad)

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