Experience with the Jungfrau-1M detector at Diamond Light Source

Area of Science:

• X-ray detector technology
• Synchrotron radiation science

Background:

• Jungfrau detectors from PSI offer high frame rates and dynamic range for demanding X-ray experiments.
• Increasing synchrotron brightness necessitates advanced integrating detectors like Jungfrau.

Purpose of the Study:

• Evaluate the performance of a Jungfrau-1M detector.
• Assess its suitability for macromolecular crystallography at high-flux facilities.

Main Methods:

• Detector testing with a laboratory X-ray tube and a microfocus beamline.
• Single photon detection capability assessment.
• Analysis of gain range switching discontinuity and dark frame subtraction methods.

Main Results:

• The Jungfrau-1M resolved single photons under laboratory and beamline conditions.
• A discontinuity was observed during gain range switching.
• Dark frame subtraction methods were compared to mitigate this discontinuity.
• The detector proved effective for macromolecular crystallography.

Conclusions:

• The Jungfrau-1M detector is a capable instrument for high-flux X-ray applications, including macromolecular crystallography.
• Its performance is suitable for upcoming upgrades at facilities like Diamond Light Source.
• Understanding and mitigating the gain switching discontinuity is important for optimal data acquisition.