Freiberg Instruments lexsyg research, Руководство и документация

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Freiberg Instruments GmbH
ּ Am St. Niclas Schacht 13 ּ 09599 Freiberg – Germany
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Module 5.1.1: UV-VIS PMT Module

for standard applications in luminescence dating and dosimetry

detection unit with standard bialkaline cathode PMT (HAMAMATSU)

sensitivity 280-650 nm

peak sensitivity 420 nm ( 3.1 E5 counts s
-1
pW
-1
)

dark counts typ. 100 cps

photon counter

counting linearity (random pulses, 10% loss) 6.0 E6 cps

electromechanical shutter, UV-VIS optics
Module 5.1.2: Extended UV-Vis PMT Module

for standard applications in luminescence dating and dosimetry

detection unit with standard bialkaline cathode PMT (Electron Tubes 9235Q)

sensitivity 160-630 nm

peak sensitivity: 30% quantum efficiency at 200 nm and 350 nm

dark counts typ. 300 cps

photon counter

counting linearity (random pulses, 10% loss): must be specified

electromechanical shutter, UV-VIS optics
Module 5.1.3: Red enhanced UV-Vis PMT Module

necessary/useful if standard UV-VIS PMT-modules yellow to red sensitivity is not
sufficient

useful e.g. for quartz(flint)/calcite orange-red or feldspar red luminescence
measurements

thermoelectric/air cooled GaAsP photocathode PMT (HAMAMATSU)

sensitivity: 300
– 720 nm,

peak-sensitivity: 40% quantum efficiency at 580 nm

cooling max. 35 deg. below RT

cooling time approx. 5 min

typ. 100 cps dark signal at 0°C

photon counting system

counting linearity (random pulses, 10% count loss) 1.5 E6 cps