SLAC National Accelerator Laboratory is operated by Stanford University for the Department of Energy. As a management and operating contractor, subcontracts awarded by the Laboratory are not Federal procurements, and are not directly subject to the Federal Acquisition Regulations in 48 CFR. Nonetheless, certain Federal laws, Executive Orders, and regulations may affect our DOE approved purchasing system, as required by statute, regulation, or contract terms and conditions.

Sources sought for: Photomultiplier tubes

  SLAC National Lab is seeking sources for photomultiplier tubes.

The photomultiplier tube (PMT) shall be sensitive to incident light from 400 nm to 730 nm, with a minimum quantum efficiency of 4% over this this bandwidth. The maximum gain must be at least 10⁶. The active area of the PMT must at least 5 mm in diameter in order to accept a multimode optical fiber. An integrated fiber coupler or adapter is desired, but not required. The PMT must have an operating lifetime of at least 2 years in continuous use. The maximum average anode output current shall be at least 2 µA. It must provide occasional output trains of 50 μA peak current for at least 100 pulses at 1 MHz or slower. The bias network must support such trains without gain droop. The PMT shall operate in ambient temperatures typically from 5 - 35 °C, possibly up to 60°C. The PMT can be packaged as a module with integrated power supply, electronics, active cooling, etc. or as a stand-alone PMT with base socket. However the PMT is packaged, the direct analog output signal from the anode must be available - TTL or other logic pulses are not acceptable. Dark current output must be less than 0.5 nA (typical) and 1 nA (maximum) at the operating temperature, for a gain of 10⁶. The specified dark current may be achieved by providing a cooled housing to a lower the operating temperature below ambient. The PMT's control interface must be suitable for remote operation through a computer, using some combination of analog and digital inputs and outputs. If the PMT is provided as a module with an integrated DC-to-HV converter, the control interface must provide a readback for the HV or an output indicating that this converter is functioning. If the housing is cooled, the control interface must provide a readback of the temperature or an output indicating that the cooler is functioning.

Quantity: 60-100

Please propose cost and delivery schedule for:

Case A- quantity 60

Case B- quantity 100

 

Bid Protests Not Available