A linear calibration method on DNL error for energy spectrum
Abstract
A calibration method aimed for the differential nonlinearity (DNL) error of the Low Energy X-ray Instrument (LE) onboard the Hard X-ray Modulation Telescope (HXMT) is presented, which is independent with electronic systems used as testing platform and is only determined by the analog-to-digital converter (ADC) itself. Exploring this method, ADCs that are used within the flight model phase of HXMT-LE can be calibrated individually and independently by a non-destructive and low-cost way, greatly alleviating the complexity of the problem. As a result, the performance of the energy spectrum can be significantly improved, further more, noise reduced and resolution enhanced.
- Publication:
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arXiv e-prints
- Pub Date:
- April 2014
- DOI:
- 10.48550/arXiv.1404.6303
- arXiv:
- arXiv:1404.6303
- Bibcode:
- 2014arXiv1404.6303B
- Keywords:
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- Astrophysics - Instrumentation and Methods for Astrophysics;
- Physics - Instrumentation and Detectors