PR for Hamamatsu parts - quote #QUO-70708-M0H3W9

Delivery Estimate: 7 December 2026 Shipping Location: 21 Langley Blvd B1250 R155, Hampton VA 23681 ITEM 1: Microchannel Plate Photomultiplier Detectors Hamamatsu Part Number (or equivalent): R5916-64 Microchannel Plate Photomultiplier Tube (Quantity 4) Detectors for an existing lidar system are required for the addition of new measurements detected at 470nm to detector fast transient signals from the atmosphere and the ocean. The detector requires the parameters below and will be integrated into existing post detector electronics and data system control. A key requirement is these the ability to have fast gating control. The dimensions are also required for integration into existing mechanical and optical configurations that be leveraged from the current implementation at other wavelengths. These detectors will be provided as a modified configuration as a bare unit that is not packaged with the bare wires pigtailed from the detector module. Outside Tube Size Dia.55 mm Photocathode Area Shape Round Photocathode Area Size Dia.10 mm Dynode Structure MCP Average Anode Current >=0.0001 mA Gain (nominal at 3000V) >1.0 x 105 Dark Current (after 30min.) Max. <=10 nA Pulse Rise Time 0.18 ns Quantum Efficiency >10% at 470nm Fast Gating Fast gating with external input trigger Gate width range 3ns – 10us Gate turn on/off times (10-90%) <=1ns Gate Voltage 10-20V Mode of gating Normally off Connector Type (anode and gate) SMA-R Connector Type (HV) SHV-R -- 1 of 4 -- ITEM 2: Metal Package Photomultiplier Detectors Hamamatsu Part Number (or equivalent): R9880U-300 Metal Package Photomultiplier Tube (Quantity 4) Detectors for an existing lidar system are required for the addition of new measurements detected at 470nm to detector fast transient signals from the atmosphere. These detectors should have high quantum efficiency but are not required to be gated. These detectors will be incorporated with existing electronics for both the dynode chain and post electronic amplification meeting the following specifications. Type Metal package type Tube Size Dia.16 mm Photocathode Area Shape Round Photocathode Area Size Dia.8 mm Wavelength (Short) 300 nm Wavelength (Long) 700 nm Wavelength (Peak) 450 nm Photocathode Material Extended green bialkali (EGBA) Quantum Efficiency >30% (at 450nm) Window Material Borosilicate glass Dynode Structure Metal channel, venetian blind Dynode Stages 10 Anode to Cathode Voltage <=1100 V Average Anode Current <=0.1 mA Operating Temperature -30 to 50C ITEM 3: Metal Package Photomultiplier Detectors Hamamatsu Part Number (or equivalent): R9880U-116 Metal Package Photomultiplier Tube (Quantity 2) -- 2 of 4 -- Detectors for an existing lidar system are required for to increase the overall efficiency detection is at 290 and 300nm. These detectors will be incorporated with existing electronics for both the dynode chain and post electronic amplification meeting the following specifications and into the same mechanical housing. Type Metal package type Tube Size Dia.16 mm Photocathode Area Shape Round Photocathode Area Size Dia.8 mm Wavelength (Short) 160 nm Wavelength (Long) 700 nm Wavelength (Peak) 400 nm Photocathode Material Super bialkali (SBA) Quantum Efficiency >33% (at 300nm) Window Material Quartz glass Dynode Structure Metal channel, venetian blind Dynode Stages 10 Anode to Cathode Voltage <=1100 V Average Anode Current <=0.1 mA Operating Temperature -30 to 50C ITEM 4: High Speed Hybrid Photodectors Hamamatsu Part Number (or equivalent): R10467U-40 Hybrid Photodetector (Quantity 3) Detectors for an existing lidar system are required for to increase the overall efficiency detection is at 470nm. These detectors will be incorporated with existing electronics for both the dynode chain and post electronic amplification meeting the following specifications and into the same mechanical housing. Type Hybrid Photodector (low afterpulse) Mechanical Tube Size Dia. 33 mm Photocathode Area Shape Round Photocathode Area Size Dia.3 mm Gain 1e5 -- 3 of 4 -- Wavelength 470 nm Photocathode Material GaAsP Quantum Efficiency >40% (at 470nm) Window Material Borosilicate glass Dynode Structure Metal channel, venetian blind Dynode Stages 10 Anode to Cathode Voltage <=1100 V Leakage Current <=150pA Operating Temperature 15 to 35C ITEM 5: High Speed Hybrid Photodector Power Supplies Hamamatsu Part Number (or equivalent): C13265 Dual Power Supply (Quantity 1) The photodectors in ITEM 4 require dual high voltage power supplies. The current version implemented in the system are obsolete. A quantity of 1 unit is required for evaluation of performance. Type Hybrid Photodector Dual Power Supply Mechanical Size 40x100 mm DC Voltage Output (lower voltage) 0 to 500 V, 500 uA DC Voltage Output (higher voltage) 0 to -8.5 kV, 2uA Voltage Control (both outputs) 0-5 V Input Voltage 15V -- 4 of 4 --