Synchrotron radiation hardness studies of PILATUS II

Area of Science:

• * Physics and Materials Science
• * Radiation Detection Technology

Background:

• * Semiconductor detectors are crucial for scientific imaging.
• * Understanding radiation tolerance is vital for detector longevity in high-energy environments.

Purpose of the Study:

• * To assess the radiation tolerance of a PILATUS II detector module.
• * To determine the operational limits of the module under synchrotron radiation exposure.

Main Methods:

• * Synchrotron radiation beam was used to irradiate a PILATUS II module.
• * Pixel threshold shifts were monitored as a function of accumulated dose.
• * Individual pixel threshold adjustments were performed post-irradiation.

Main Results:

• * Significant radiation-induced threshold shifts occurred above 30 Mrad.
• * Individual pixel threshold recalibration maintained standard module behavior up to 40 Mrad.
• * The module can sustain continuous irradiation exceeding 40 days at 10^6 counts s^-1 per pixel.

Conclusions:

• * PILATUS II modules exhibit resilience to radiation up to 40 Mrad with threshold correction.
• * This radiation tolerance supports long-term operation in demanding experimental setups.
• * The findings are critical for the design and deployment of detectors in particle physics and synchrotron applications.