WaveQuanta

PMTH Series Room-Temperature Photomultiplier Detectors, Side-Window PMTs

PMTH Series
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Shielded side-window PMT detectors for low-light measurements on monochromators, spectrographs and sample chambers.

PMTH-S1 detectors house a side-window photomultiplier tube in a light-tight enclosure with electromagnetic and optical shielding, designed to mount on Omni-λ series monochromators/spectrographs and sample chambers. Several side-window tubes can be fitted, with spectral responses from 185 nm up to 900 nm. The matching HVC1800 high-voltage power supply provides the stable negative bias required for low-level photometry and photon counting.

Key Features

  • Side-window PMT in a light-tight housing with electromagnetic and optical shielding
  • Matched to Omni-λ series monochromators/spectrographs and sample chambers
  • Signal output through a standard BNC; high voltage fed through a dedicated HV-rated BNC
  • Current output as standard, voltage output optional
  • Choice of built-in tubes: CR316-02, R1527, R1527P, CR131, CR131A, R928, R2949
  • Optional HVC1800 supply: 0–1500 V DC negative, set manually or by an external 0–10 V signal (e.g. from the DCS300PA)

Typical Applications

  • Low-light photometry
  • Single photon counting
  • Fluorescence and luminescence spectroscopy with scanning monochromators
  • UV–visible spectral measurements

Model Overview

Tube Spectral Response (nm) Peak Response (nm) Cathode Radiant Sens. (mA/W) Cathode Luminous Sens. (µA/lm) Anode Luminous Sens. (A/lm) Gain Anode Dark Current Typ./Max. (nA) Dark Count Typ./Max. (cps, 25 °C) Effective Area (mm)
CR316-02 185–650 340 48 40 – 1.0×10⁷ 5 / 15 – 8 × 24
R1527 185–680 400 60 60 400 6.7×10⁶ 0.1 / 2 – 8 × 24
R1527P 185–680 400 60 60 400 6.7×10⁶ 0.1 / 0.5 10 / 50 8 × 24
CR131 185–900 400 ± 30 74 140 1000 1.0×10⁷ 3 / 50 – 8 × 24
CR131A 185–900 400 ± 30 74 250 1500 1.0×10⁷ 3 / 50 – 8 × 24
R928 185–900 400 ± 30 74 250 2500 1.0×10⁷ 3 / 50 – 8 × 24
R2949 185–900 400 ± 30 68 200 2000 1.0×10⁷ 2 / 25 300 / 500 8 × 6

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Models: PMTH-S1, HVC1800 · Contact WaveQuanta for a quote, configuration advice and lead time.

Detector Type Side-window photomultiplier tube, room temperature
Tube Options CR316-02, R1527, R1527P, CR131, CR131A, R928, R2949
Spectral Response 185–650 nm to 185–900 nm, depending on tube
Photocathode Material Sb-Cs (CR316-02); bialkali or multialkali (other tubes)
Dynode Structure Circular-cage, 9 stages
Anode Pulse Rise Time 2.2 ns
Electron Transit Time 22 ns
Supply Voltage, Anode to Cathode 1250 V
Supply Voltage, Anode to Last Dynode 250 V
Signal Output Current (standard), voltage (optional), via BNC
High-Voltage Input Dedicated HV-rated BNC
HVC1800 Output Voltage 0–1500 V DC, negative
HVC1800 Voltage Control Manual, or external 0–10 V control port (PC or D/A converter)
HVC1800 Max. Output Current 0.5 mA
HVC1800 Max. Output Voltage Drift ±0.05%/h
HVC1800 Display 3½-digit LED
HVC1800 Dimensions 240 × 240 × 120 mm
HVC1800 Weight 3.4 kg
No CAD drawings available for this product.