Jacobsen's double-slit diaphragm is an x-ray beam masking device.  It is mounted on the x-ray source or detector and controls the dimensions of the x-ray beam on the sample part and/or on the detector.

Diaphragms are used for two main reasons, namely to limit the primary x-ray beam on the tube side, and to limit unattenuated primary radiation from hitting the detector.  Excess radiation hitting the detector results in overexposure on the detector.  The diaphragm allows precise masking of the x-ray beam, helping to avoid overexposure.

			100x100mm opening, mounted on the x-ray source
			200x200mm, 230x230mm and 240x240mm opening, mounted on the detector

			Image quality improvement through adjustment of the beam cone
			Fits to MAXIvision™ II Image Intensifier Imaging Systems
			DC-motors for horizontal and vertical diaphragm slides
			Exact positioning of the diaphragm slides using PC-based control (optional)
			Pushbutton or joystick control of sliders
			Pre-filters are mounted directly into slide-in device
			For voltages of up to 450 kV (slides made from tungsten)

Please contact us for more information or a quote on our diaphragms.