Available parts:

• Ultra Fast Detectors for Soft X-Rays (1-15 keV). The soft x-ray detectors have magnets that control photoelectron emission. Sensitivity is between 2E-05 and 4E-04 V/(W/cm2).
• Ultra Fast Detectors for Bremsstrahlung and e-beams. Sensitivity is between 1E-09 and 1.5E-06 V/(rad/s).
• Detectors for reactor gammas. These detectors are double ended and made from low cross section materials. Sensitivity is between 2E-08 and 3.6E-08 V/(rad/s).

(a) Pulse width is ~ 50 ps and PCD response time is ~ 30 ps (Fast Pulse Linac, bunched mode of operation, Idaho Accelerator Center); and (b) Waveform of the same Linac recorded with GaAs PCD and facility PIN diode (un-bunched mode of operation).

Key features:

• Very fast response time. Fastest model has a response time of < 30ps. Nu-Trek has designs for PCDs with 10 ps response times.
• Low sensitivity. Very suitable for intense x-ray sources, such as laser produced plasmas from large systems such as Omega and the National Ignition Facility (NIF).
• Models optimized for soft x-rays, hard x-rays, and reactor gammas have been developed and tested.

Benefits:

• Very fast response time enables characterization of plasma dynamics on the order of 30 ps that cannot be resolved with other detectors.
• Low sensitivity prevents saturation by high dose rate, high flux sources.

Technology Readiness Level: Estimated at about TRL 7. Prototypes of the three detector types (soft x-ray, hard X-ray, and reactor gammas) with various sensitivities were designed and tested with a broad range of radiation sources. Time response has also been demonstrated.

Purchasing information:

• Fabricated to order on a time and material basis.
• Sold only as part of a broader instrumentation development or R&D program.
• Lead-time depends on the availability of neuron irradiated GaAs (used as the sensing element).
• Prototypes can be made available.

Subject to ITAR control: No

Additional Information will be provided upon request.