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Vacuum Operation

Amptek detectors can be operated in air or in vacuum down to 10^-7 Torr. There are two ways:

Option A: The entire XR-100 detector and preamplifier box can be placed inside the chamber. In order to avoid overheating and dissipate the 1 Watt of power needed to operate the XR-100, good heat conduction to the chamber walls should be provided by using the four mounting holes.

Option B: The XR-100 can be located outside the vacuum chamber to detect X-Rays inside the chamber through a standard Conflat compression O-ring port. Optional Model EXV9 (9 inch) or EXV5 (5 inch) vacuum detector extender is available for this application.

Both Option A & B for vacuum chamber pressures to 10^-7 torr.

Option A

XR100 with PX5

Figure 1. Option A: XR100 with PX5

Required items for XR100 with PX5

• XR-100CR, XR-100SDD, or XR-100T-CdTe
• TF3 Power Cable (ACH-432, 6-pin lemo to 9 pin D)
• 9DVF Feedthrough connector
• PX5 (includes ACH-403 Cable and ACH-442 Gender Changer)
• NOTE: No signal cable is included from the XR100 to the vacuum wall. This is the responsibility of the user. A standard BNC cable is provided for use outside of the chamber.

AXR/PA-230 with DP5/PC5

Figure 2. Option A: AXR/PA-230 with housing and DP5/PC5.

Figure 3. Option A: AXR/PA-230 with housing and DP5/PC5.

Required items for AXR/PA-230 with DP5/PC5

• AXR Detector (Si-PIN, SDD, or CdTe)
• PA-210 or PA-230 Preamplifier
• PA-210 or PA-230 Housing
• 9DVF Feedthrough connector
• Flex to 9 Pin D (male) Cable (ACH-411)
• Flex to 9 Pin D (female) Cable (ACH-417)
• DP5/PC5 Digital Pulse Processor and Power Supply

Option B

Figure 4. XR100 with PX5. Required items XR-100CR, XR-100SDD, or XR-100T-CdTe EXV9 or EXV5 CP75 Feedthrough coupling PX5 Digital Pulse Processor and Power Supply

Figure 5. X-123 Required items X-123 Si-PIN, X-123 SDD, or X-123 CdTe EXV9 or EXV5 CP75 Feedthrough coupling

Option B Mechanical Dimensions

Figure 6. EXV9 - 9" vacuum extender. All dimensions are in inches except as noted.

Figure 7. EXV5 - 5" vacuum extender. All dimensions are in inches except as noted.

Figure 8. The XR100 and the X-123 with EXV9 9 inch extenders and CP75 feedthrough couplings.

Model CP75

Vacuum feedthrough coupling on 2 3/4" Conflat for use with the EXV9 or EXV5.

Figure 9. All dimensions are in inches except as noted.

Metric equivalent DN40CF.

Model 9DVF

9 pin D-subminiature vacuum feedthrough connector mounted on a standard 2 3/4" stainless steel Conflat.

Figure 10. All dimensions are in inches except as noted.

EXVC Collimator Kit for the EXV5 or EXV9

Figure 11. All dimensions are in inches except as noted.

The EXVC - Collimator Kit Includes

• Stainless steel collimator housing
• Brass Spacer
• Tripod and mounting plate (included when ordering for use with standard 1.5 inch extender box)
• Laser pointer
• 7 Tungsten (W) Collimator disks:
• 1 mm thick with 25 µm hole
• 1 mm thick with 50 µm hole
• 2 mm thick with 100 µm hole
• 2 mm thick with 200 µm hole
• 2 mm thick with 400 µm hole
• 2 mm thick with 1000 µm hole
• 2 mm thick with 2000 µm hole

Optional: EXVC-W-SPACER
This Tungsten (W) Spacer /Collimator is 35 mm thick with a 350 µm hole. It is designed to stop and collimate x-rays greater than 100 keV produced from high energy tubes.

All Tungsten disks are made of alloy HD17 (90% W, 6% Ni, 4% Cu).

Revised November 2, 2011