Newheek NK-R102NC X-ray collimator is a manual beam-limiting accessory designed for general diagnostic X-ray equipment with 150kV X-ray tubes. It precisely restricts the X-ray radiation field, reduces scatter radiation, cuts unnecessary radiation exposure and helps produce high-contrast radiographic images for medical diagnostic use.
The NK-R102NC collimator fits ordinary X-ray diagnostic equipment. It matches X-ray tubes with maximum operating voltage up to 150kV. It is widely used as a supporting component for stationary, mobile and portable X-ray machines in radiography rooms and bedside imaging scenarios.
Key Technical Parameters
Matching X-ray tube maximum operating voltage: 150 kV
X-ray leakage: ＜0.5 mGy/h (150 kV, 4 mA)
Distance from X-ray tube focal spot to collimator mounting surface: 60 mm, adjustable for different tubes
Maximum field size: 45 cm × 45 cm (SID = 1 m)
Minimum field size: ＜3 cm × 3 cm (SID = 1 m)
Visible light field illuminance: ＞180 lux (SID = 1 m)
Contrast ratio: ≥4:1
Lead gate control method: Manual
Lamp on delay time (intermittent delay): 30 s
Light field alignment (single side): ＜1 % @ SID
Inherent filtration: 1 mm Al /75 kV
Power input: 24 VAC / 50 VA or DC 24 V / 2 A
Dimensions: 228 mm × 191 mm × 97 mm (L × W × H)
Weight: 5.5 kg
Product Features
This is a manual collimator with manually operated lead shutters. Operators can continuously adjust the opening size of lead gates to tailor the radiation field exactly to the region of interest. This limits X-ray beam coverage and lowers scatter radiation.
It is equipped with LED light field simulation. The visible light field matches the actual X-ray beam, so technicians can preview the exposure area before activating X-rays. Light field illuminance is higher than 180lux at 1m SID, delivering bright, clear visualization. The 30-second lamp delay function protects the LED light source and extends service life.
Light field alignment precision is within less than 1% on a single side, ensuring high consistency between light field and X-ray field. The focal distance from focal spot to mounting surface can be adjusted to adapt to different X-ray tube assemblies, bringing strong compatibility for different X-ray system integrators.
Strict radiation leakage control is another highlight. Under 150kV,4mA working condition, leakage radiation stays below 0.5mGy/h, complying with international radiation safety requirements and protecting operators and patients.
Working Principle & Practical Value
The collimator uses movable lead shutters to block redundant X-rays outside the target imaging area. Narrowing the radiation field suppresses scattered radiation. Reduced scatter improves image contrast and diagnostic clarity, while minimizing radiation exposure to surrounding tissues.
For X-ray system manufacturers and integrators, this collimator is a ready-to-install accessory. Its adjustable focal mounting distance supports integration into many custom-built 150kV diagnostic X-ray systems. It works well for hospital radiography, bedside mobile X-ray and general radiographic inspection.
Summary
Newheek NK-R102NC manual X-ray collimator is a reliable beam limiter for 150kV diagnostic X-ray machines. Featuring adjustable focal distance, high light field accuracy, low radiation leakage and simple manual control, it offers dependable beam shaping performance. It is a preferred radiology accessory for X-ray machine manufacturers and medical imaging system suppliers.
