Photomultiplier tube unit
H12694A series is an NIR-PMT unit using a compact NIR-PMT (near infrared photomultiplier tube) developed by our advanced photocathode technology. The NIR-PMT is contained in a thermally insulated sealed-off housing evacuated to a high vacuum. The internal thermoelectriccooler eliminates the need for liquid nitrogen and cooling water. The light input window of these modules use a condenser lens to provide a virtually larger photosensitive area allowing easy optical coupling. Adapters for connection to an optical fiber and monochromator are also available as options.
The H12694A-75 (InP/InGaAs photocathode) is high sensitivity NIR-PMT unit with spectral response range from 950 nm to 1700 nm.
|Spectral response||950 to 1700||nm|
|Peak sensitivity wavelength||1500||nm|
|Detection area for collimated light||Φ18||mm|
|PMT operating temperature||-60||℃|
|Guaranteed PMT operating voltage||-500 to -900||V|
|Operating ambient temperature||+5 to +40||℃|
|Storage temperature||-20 to +50||℃|
|Max. average output signal current||1||µA|
|Anode*1*2||Radiant sensitivity||Min.||6 x 103||A/W|
|Typ.||2.4 x 104|
|Dark count*3||Typ.||2.5 x 105||s-1|
|Gain*2||Min.||5 x 105||ー|
|Typ.||1 x 106|
|Time response||Anode pulse rise time||Typ.||0.9||ns|
|Anode pulse fall time||Typ.||1.7|
|Transit time spread||Typ.||0.4|
|Cooling method||Thermoelectric (Forced air cooling)||ー|
|Condenser lens||Material||BK7 AR coating||ー|
|Transmission wavelength||900 to 1700||ー|
|F number||1.4 (f=25.7)||ー|
|Cooling time required for operation||Approx. 20||min|
|Protection function||High voltage interlock for inappropriate temperature||ー|
|Controller rating||Input voltage (AC)||90 to 264 (50 Hz / 60 Hz)||ー|
|Weight*4*5||Main unit||Approx. 2.13||kg|
*1 At peak sensitivity wavelength.
*2 At -800 V input voltage and -60 °C operating temperature.
*3 After 30 min storage with cooling in darkness. (Anode radiant sensitivity 1.0 × 104 A/W)
*4 Including resistor box with BNC connectors.
*5 Including high voltage cable and control cable.
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