MindMap Gallery Senior Chemistry: X‑ray Crystallography Data Collection Checklist
Unlock the secrets of crystal structures with our comprehensive X-ray Crystallography Data Collection Checklist! This essential guide is meticulously organized into key sections to ensure a seamless data collection process. Starting with Pre-Collection Setup, verify instrument status and sample documentation. Move on to Crystal Preparation & Mounting, ensuring optimal crystal quality and stability. Next, focus on Centering & Alignment for precise positioning, followed by defining your Strategy & Scan Settings for effective data capture. During Data Acquisition, monitor and adjust parameters in real-time for optimal results. Finally, ensure File Saving & Data Integrity for reliable data storage, followed by a thorough Post-Collection Review to assess outcomes and document findings. Equip yourself with this checklist for a successful crystallography experience!
Edited at 2026-03-25 13:39:36Join us in learning the art of applause! This engaging program for Grade 3 students focuses on the appropriate times to applaud during assemblies and performances, emphasizing respect and appreciation for performers. Students will explore the significance of applauding, from encouraging speakers to maintaining good audience manners. They will learn when to applaudsuch as after performances or when speakers are introducedand when to refrain from clapping, ensuring they don't interrupt quiet moments or ongoing performances. Through fun activities like the "Applause or Pause" game and role-playing a mini assembly, students will practice respectful applause techniques. Success will be measured by their ability to clap at the right times, demonstrate respect during quiet moments, and support their peers kindly. Let's foster a community of respectful audience members together!
In our Grade 4 lesson on caring for classmates who feel unwell, we equip students with essential skills for handling such situations compassionately and effectively. The lesson unfolds in seven stages, starting with daily preparedness, where students learn to recognize signs of illness and the importance of communicating with adults. Next, they practice checking in with a classmate politely and keeping them comfortable. Students are then guided to inform the teacher promptly and offer safe help while waiting. In case of serious symptoms, they learn to seek adult assistance immediately. After the situation is handled, students reflect on their actions and continue improving their response skills for future incidents. This comprehensive approach fosters empathy and responsibility in our classroom community.
Join us in Grade 2 as we explore the important topic of keeping friends' secrets! In this engaging session, students will learn what a secret is, how to distinguish between safe and unsafe secrets, and identify trusted adults they can turn to for help. We’ll discuss the difference between surprises, which are short-lived and joyful, and secrets that can sometimes cause worry. Through interactive activities like sorting games and role-playing, children will practice recognizing unsafe situations and the importance of sharing concerns with adults. Remember, safety is always more important than secrecy!
Join us in learning the art of applause! This engaging program for Grade 3 students focuses on the appropriate times to applaud during assemblies and performances, emphasizing respect and appreciation for performers. Students will explore the significance of applauding, from encouraging speakers to maintaining good audience manners. They will learn when to applaudsuch as after performances or when speakers are introducedand when to refrain from clapping, ensuring they don't interrupt quiet moments or ongoing performances. Through fun activities like the "Applause or Pause" game and role-playing a mini assembly, students will practice respectful applause techniques. Success will be measured by their ability to clap at the right times, demonstrate respect during quiet moments, and support their peers kindly. Let's foster a community of respectful audience members together!
In our Grade 4 lesson on caring for classmates who feel unwell, we equip students with essential skills for handling such situations compassionately and effectively. The lesson unfolds in seven stages, starting with daily preparedness, where students learn to recognize signs of illness and the importance of communicating with adults. Next, they practice checking in with a classmate politely and keeping them comfortable. Students are then guided to inform the teacher promptly and offer safe help while waiting. In case of serious symptoms, they learn to seek adult assistance immediately. After the situation is handled, students reflect on their actions and continue improving their response skills for future incidents. This comprehensive approach fosters empathy and responsibility in our classroom community.
Join us in Grade 2 as we explore the important topic of keeping friends' secrets! In this engaging session, students will learn what a secret is, how to distinguish between safe and unsafe secrets, and identify trusted adults they can turn to for help. We’ll discuss the difference between surprises, which are short-lived and joyful, and secrets that can sometimes cause worry. Through interactive activities like sorting games and role-playing, children will practice recognizing unsafe situations and the importance of sharing concerns with adults. Remember, safety is always more important than secrecy!
Senior Chemistry: X‑ray Crystallography Data Collection Checklist
Pre-Collection Setup
Instrument status
X-ray source warmed up and stable
Detector calibrated (dark/flat fields if required)
Goniometer/robot operational and homed
Sample documentation
Sample ID matches logbook/LIMS
Expected formula/space group (if known) recorded
Crystal Preparation & Mounting
Crystal quality check
Single crystal (no visible twinning/cracks)
Appropriate size for wavelength/detector distance
Frozen?
Cryostream on and at target temperature
Crystal vitrified (no icing/frost on loop/pin)
Cryo alignment verified (stream centered on crystal)
Mount security
Loop/pin stable; no wobble during rotation
Minimal surrounding oil/solvent to reduce background
Centering & Alignment
Aligned?
Crystal centered at beam intersection (X/Y/Z)
Verified at multiple phi/omega angles
Beamstop positioned to block direct beam without masking spots
Orientation check
Initial stills/short sweep collected
Indexing succeeds; unit cell reasonable
No severe spot splitting/streaking indicating issues
Strategy & Scan Settings
Scan angles set?
Omega/phi/kappa strategy defined (if applicable)
Start/end angles and oscillation width confirmed
Total rotation covers required completeness/redundancy
Exposure parameters
Exposure time appropriate (avoid overload; sufficient I/σ)
Detector distance set for desired resolution
Attenuation/beam intensity set as needed
Resolution & geometry
Target resolution set (2θ/2θmax as relevant)
Confirm no predicted collisions (goniometer, detector, cryo nozzle)
Data Acquisition
Run execution
Collect initial frames and evaluate spot shape/intensity
Adjust exposure/attenuation if saturation/weak data observed
Monitor for ice rings and rising background
Real-time checks
Indexing/Integration updates stable during run
Unit cell consistent; no sudden shifts/drift
Radiation damage monitored (intensity decay, color change)
File Saving & Data Integrity
.raw file saved?
Raw images written to correct directory with consistent naming
No dropped frames; frame count matches strategy
Metadata saved (wavelength, temperature, distance, angles)
Backups
Copy raw data to secondary storage/server
Record checksums or verify file sizes if required
Post-Collection Review
Quick processing
Completeness/redundancy/resolution achieved
Rint/CC1/2 and mosaicity within expectations
Documentation
Record final strategy, any changes, issues encountered
Note crystal condition after collection (still frozen/intact)
Cleanup
Safely warm/stop cryostream as needed
Remove sample; clear goniometer and reset instrument state