Specifications.docx
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- Scionix Scintillation Detector Federal contract opportunity
- Solicitation number
- 12405B20P-993893
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| File | Type | Posted |
|---|---|---|
| Updated Solesource Justification-BNC Corp 02-21-20 CO.pdf |
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Specifications
V127A152/5M-HV-Q-X
Description: Large volume Nal(TI) detector with built-in high voltage power supply and special connector
| Scintillation crystal: | Nal*TI), 127 x 127 x 152 mm | |||
| Design drawing: | VS-548-10 | |||
| Housing: | 1.0 mm thick stainless steel | |||
| Optical window: | Quartz, 12.7 mm thick | |||
| Photomultiplier tube: | 127 mm diameter, ET 9390 | |||
| Internal high voltage generator: | Corkcroft Walton type PS1822/5 | |||
| High voltage regulation: | By means of external control voltage via white Wire (pin 4 of MOLEX connector) | |||
| Internal HV supply HV control: | accessible via hole in backcap | |||
| HV test point voltage: | 1V = 1kV | |||
| Temperature sensitivity: | Cathode-to-anode voltage changes: < 0.03, 0.01 typical (+20 degrees Celsius to 50 degrees Celsius) | |||
| Warm-up time: | 0.3% of final output after 10 s. 0.02% of final output after 10 min. | |||
| High voltage discharge time: | < 60 s to < 30 V | |||
| Line regulation: | 0.005% per volt power supply voltage | |||
| Gain stability: | < 1% up to 20 uA anode current | |||
| Power requirements: | +5 V, power requirement 100 mW | |||
| Electrical Connections: | Negative high voltage circuit (anode at ground potential). Readout at anode of PMT |
45 cm long flying leads cables through two openings in backcap of detector to MOLEX connector type 90156-0146 WM 8021-ND (Farnell)
| Function | Cable colour | Pin number | ||
| +5V input Voltage | Red | 1 | ||
| Common ground | Black | 2 | ||
| High Voltage control (INT) | Yellow | 3 | ||
| Control Voltage | White | 4 | ||
| Anode output | Coax RG 174 core | 5 | ||
| Signal ground | Coax RG 174 braid | 6 |
Performance criteria Energy resolution (662 keV) < 8.52 % FWHM
Note: The High voltage should be chosen as large as possible given the required dynamic range. This ensures the optimum signal-to-noise ratio.
File details come from the government source that posted it. Updated .