Electron Multiplier GC-MS
Versatile detectors offering >200μA DC
linearity and long lifetime.
Ideal for both pulse counting and analog
applications.
Detectors are bespoke, custom designs to be optimized for every system. Please contact our experts to design electron multipliers based on your instrument requirements
Product branding
3rd Item Number
Electron-Multiplier_GC-MS
RoHS Compliance
Compliant, with Exemption 6(C) and 7(C)-I
att application
GC-MS
Number of dynodes
20+
Ambient temperature
+5°C
to +40°C for
normal operation
Maximum HED Voltage
± 10KV
Maximum dark current
<1 pA
@ approx. 1E8 gain, HED @ 0 V
-HV @ -2250 V, HED @0KV
≤ 3 cts/min with 24hr vacuum soak @ ≤ 5E-6 Torr
≤ 100 cts/min @ ≤ 5E-6 Torr immediately after pumpdown
-HV @ -2250 V, HED @-10KV
≤ 30 cts/min with 24hr vacuum soak @ ≤ 5E-6 Torr
≤ 500 cts/min @ ≤ 5E-6 Torr immediately after pumpdown
Maximum operating pressure
10-4 Torr
Maximum storage temperature
70°C
Final Operating Voltage (aged)
-3000V to -4500V
Initial Operating Voltage (new)
~ -1300V to ~-1700V
Note: Operating a new detector at maximum voltage may result in damage to the detector
Noise specifications @ Gain ~ 1E8
The
design is validated through the Product Development cycle to meet the tight
noise specifications normally associated with ETP detectors. For your convenience,
we have validated noise specifications for two levels of vacuum conditioning.
Long/short term storage requirements
Protect
from dust and humidity
Maximum sustained output current for linear operation
~10uA to ~250uA+