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Of This Page Reflectron TOF (RETOF) (oaTOF) |
(Click image to enlarge) 40mm MCP Dual Detector on 6 Inch Conflat Flange |
DUAL (CHEVRON) MCP MICROCHANNEL PLATE DETECTORSDesigned to handle the fast ion pulses provided by our linear and reflectron Time Of Flight Mass Spectrometers. Our MCP Microchannel Plate Detectors have a 50 ohm coaxial output and provide high gain (10e6 to 10e7) with sub-nanosecond rise time. They are fitted with SHV coaxial UHV feedthrus that can be operated from external power supplies or voltage dividers. All of our MCP Microchannel Plate Detectors are fitted with a 90% transparency input grid. This presents a flat, field free plane to the incoming ions. The input grid has its own SHV feedthru and can be operated at any potential. A shorting cap is provided for operation at ground potential. Our divider circuits are close coupled to the detector by way of short SHV cables which results in low noise, clean signal with no ringing. |
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Our MCP Microchannel Plate Detectors are UHV ultra high vacuum compatible and can be baked to 300 degrees C. In the dual (chevron) configuration two microchannel plates are used. Replacement microchannel plates for our detectors are available from at least three different vendors. All dual detectors can be used to detect either positive ions, negative ions or electrons by simply using different input voltages/divider circuits. |
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Z-GAP HIGH SENSITIVITY MCP MICROCHANNEL PLATE DETECTORSA special three plate MCP Microchannel Plate Detector is also available for detecting small signals. The addition of the third MCP and suppression grid offers much higher gain, better signal/noise ratio, and a higher input/acceleration voltage for incoming ions. Also fitted with an input grid, the Z-Gap MCP Microchannel Plate Detector provides incoming ions with a post acceleration voltage of nearly -5KV. Z-Gap MCP Microchannel Plate Detectors are available with 18mm, 25mm or 40mm Microchannel Plates. Note: Z-Gap detectors cannot
be used to detect negative ions or electrons. |
 40mm Z-Gap MCP Detector Mounted on AREF (RETOF) |
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40mm MCP Microchannel Plate Detectors are available on a 6 inch conflat flange. Detectors are baked and shipped under vacuum. |
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Description of Images and Product Information Downloads: | |||
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18mm Dual and Z-Gap MCP Microchannel
Plate Detectors: 18mm Dual Detector mounted on 4.5 inch conflat flange (left) 18mm Dual Detector mounted on 4.5 inch conflat flange shown with vacuum/shipping container (right) |
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18mm Dual Detector mounted on 6 inch conflat
flange (left) 18mm Z-Gap Detector mounted on 6 inch conflat flange (right) 18mm Dual MCP Detector Drawings / Product Info (PDF) 18mm Z-Gap MCP Detector Drawings / Product Info (PDF) |
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25mm Dual and Z-Gap MCP Microchannel
Plate Detectors: 25mm Dual Detector mounted on 6 inch conflat flange (left) 25mm Z-Gap Detector mounted on 6 inch conflat flange (right) 25mm Dual MCP Detector Drawings / Product Info (PDF) 25mm Z-Gap MCP Detector Drawings / Product Info (PDF) |
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40mm Dual and Z-Gap MCP Microchannel
Plate Detectors: 40mm Dual Detector mounted on 6 inch conflat flange (left) 40mm Z-Gap Detector mounted on 6 inch conflat flange (right) |
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40mm Z-Gap Detector assembly mounted on AREF
(RETOF) Offset Adaptor assembly (left) 40mm replacement Dual MCP sub assembly for AREF (RETOF) on shipping container base flange (right) 40mm Dual MCP Detector Drawings / Product Info (PDF) 40mm Z-Gap MCP Detector Drawings / Product Info (PDF) |
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Divider Box and Short Cable Assembly
for MCP Microchannel Plate Detectors: Divider circuit for Dual Detector (left) Divider circuit for Z-Gap Detector (right) Dual Divider Box Product Info (PDF) Z-Gap Divider Box Product Info (PDF) |
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High Voltage Dual Divider Box and
Capacitive Coupling Circuit to Operate Detector for Negative
Ion or Electron Detection: Signal capacitive coupling circuit (left) Divider/Capacitive coupling circuit combination (right) H.V. Dual Divider Box / Capacitive Couple Box for Negative Ions Product Info (PDF) H.V. Dual Divider Box / Capacitive Couple Box for Electrons Product Info (PDF) |
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User Manuals: |
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If you wish to purchase channel plates for any other purpose, you must go to one of the many manufacturers. All plates are detection (non imaging) grade and have a 40:1 L/D ratio. |
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