XRS25

OVERVIEW

The UNIBLITZ® XRS25 shutter series is especially designed for x-ray applications. The blade design allows beam extinction >104 up to 30Kev x-ray energy. The XRS14 shutter is well suited for specific x-ray applications such as x-ray crystallography and can open within 10.0msec at a maximum rate of 10Hz. Precision control and reliability can be expected as with all UNIBLITZ® shutter products.

The shutter is equipped with dual actuators each actuator controls one of each of the two blades. The shutter is programmable, and is activated by an electronic pulse generated by Vincent's patented UNIBLITZ® drive systems. The shutter will follow this pulse, which allows the user to program the exposure duration and frequency. This device will require two drive channels for operation and a specially modified cable (the 910C-D7) is required to connect to the driver.

The XRS25 has a 25mm clear aperture and can be equipped with the solid state synchronization system. Vacuum compatibility is also available, please consult customer service for further information.

FEATURES

• 25mm diameter clear aperture.
• PtIr (Platinum Iridium) shutter blade, capable of blocking x-ray energy up to 30Kev.
• Exposure repetition rate continuously variable from DC to 10Hz.
• Electronic synchronization system optional.
• Activated by an electronic pulse through patented UNIBLITZ® shutter drive systems.
• Non-resonant design allows instantaneous changes repetition rate and duty cycle.
• No optical surface open provide 100% transmittance.
• Normally open option available on special order.

Electrical

¹ Voltage level required across actuator coil when being held in the open position.

Mechanical

¹ CONTinuous frequency rating specified at shutter’s minimum exposure pulse. BURST frequency rating specified for (4) four seconds maximum with (1) one minute minimum between bursts. Frequency measurements are taken in free air, 25°C ambient, actuator coil equipped with heat sink. For additional information on maximum sustained frequencies obtainable, please contact one of our technical representatives.

Timing

Typical timing values (msec.) using UNIBLITZ drive equipment and measured with UNIBLITZ shutters equipped with standard TEFLON® coated shutter blades.

The following chart lists typical timing values (msec.) using UNIBLITZ® drive equipment and measured with UNIBLITZ® shutters equipped with standard black Teflon® coated shutter blades.

The question regarding enhancement of shutter speed with the application of user supplied lubricants has been repeatedly asked. It is our experience that lubricating the shutter blades will actually slow the shutter down and eventually render the shutter inoperable. UNDER NO CIRCUMSTANCES SHOULD ANY TYPE OF LUBRICANT BE APPLIED TO THE SHUTTER
BLADE AREA.

Unhoused Style

The XRS25 uncased style is the basic configuration of this series and is best suited for OEM applications. Mounting can be accomplished through two 2.5mm holes on either side of the aperture. The unit’s dual actuator construction will necessitate spacing the shutter on stand-offs at a minimum of 18mm in length to clear the shutters’ mechanisms when mounting to a flat surface. Gap between closed blades is .04 inches. Not optically light tight. The unit terminates to a 9-pin male in-line connector through a six-inch cable assembly.

Housed Style

The XRS25 #2 case style allows a number of mounting configurations. A ¼-20 threaded hole is provided for post mounting. The 1.625in x 40TPI external thread, rear side, and the six 2-56 threaded holes, front side (Figure 3), can be interfaced directly into your application or fitted with variety of specific mounting options. See the “MICROSCOPE, VIDEO and UNIVERSAL MOUNTING SYSTEMS” data sheets for additional information. The unit terminates with a 9-pin male connector.

Housing/Connector Layout

This drawing illustrates 9-pin connector and 1/4-20 threaded hole layout for the XRS25 series #2 case style. The cable required is non-standard, the 910C-D7 (9-pin female connector to dual 7-pin male connectors, 10ft. in length). This shutter device requires two driver channels for proper operation and each of the 7-pin connectors of the 910C-D7 would be connected to the SHUTTER output of two separate VMM type driver channels. The drive channels should be triggered simultaneously to achieve published typical timing specifications.

Cable Adapter Layout

This drawing illustrates 910C-D7 Cable required to allow proper connection of the XRS25 to VCM/VMM type controllers. The dual 7-pin male connectors of the 910C-D7 Cable would connect to the VCM controllers (through the 710B*) or VMM controllers directly and the 9-pin female would connect to the shutter as illustrated in figure #3.

* If the added cable length using the 710A cables is undesirable, the 910C-D7 can be equipped with dual 5-pin male Switchcraft connectors in place of the standard 7-pin connectors for direct connection into the VCM type controller. Please contact a technical representative for additional information.