📡X-Ray & DR SystemsDR System

DR System Calibration Guide

By MedBazaar Technical Team · Troubleshooting Guide

DR System Calibration Overview

DR detectors regular calibration require karte hain optimal image quality ke liye.

Calibration Types

Dark Field Calibration (Offset Cal)

Purpose: Electronic noise baseline remove karna

Frequency: Daily ya per session

Procedure: No exposure — detector covers hai

User level: Software mein "Dark Cal" ya "Offset Cal" button

Flood Field Calibration (Gain Cal)

Purpose: Detector response uniformity

Frequency: Weekly ya monthly

Procedure: Uniform X-ray exposure to detector (no patient, no grid)

User/engineer level

Defect Map Update

Purpose: Dead pixels/elements map karna

Frequency: Quarterly ya as needed

Engineer level

Daily Calibration Procedure

Software mein calibration mode enter karein

Detector properly position karein (no patient, clear field)

"Dark Cal" run karein — no exposure needed

Confirmation message wait karein

Normal use resume karein

When to Call Engineer

Calibration fail hoti hai

Artifacts persist despite calibration

Image quality baseline se significantly different

After any detector drop/impact

Image Quality Verification

After calibration: flat field image lein — uniform grey, no bands ya patterns visible honi chahiye.

Difficulty: Intermediate

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