The PMC-150 series of cooled high-speed detector heads from Becker & Hickl are ideal for all single photon counting applications. They offer an fast instrument response function of <150ps FWHM in TCSPC applications and a range of spectral coverage over the region from 300-900nm.
The PMC-150 contains a fast miniature PMT along with a Peltier cooler, a high voltage generator, a GHz pulse amplifier and a current sensing circuit. Due to the high gain and bandwidth of the device a single photon yields an output pulse with an amplitude in the range of 100 to 200 mV and a pulse width of 1.5 ns. Due to the high gain and the efficient shielding noise pickup is minimised. Therefore the PMC-150 yields high time resolution and high counting efficiency. The TCSPC instrument response function (IRF) has a width of less than 150 ps FWHM. Overload conditions are detected by sensing the PMT output current. Overload is indicated by an LED, an acaustic signal, and a logical overload signal. The PMC-150 is operated by the bh DCC-100 detector controller card. The DCC delivers the operting voltage for the PMT, the current for the Peltier cooler, controls the detector gain, and shuts down the PMT in case of overload. Compared to its predecessor, the PMC-100, the PMC-150 has a shorter IRF width and a better IRF uniformity over the active
area.
Specifications
| Cathode Type | -4 | -110 | -113 | -210 | -20 |
| Wavelength Range/nm | 185-870 | 230-700 | 185-700 | 230-700 | 300-900 |
| Detector Quantum Efficiency | 25 %
@ 380 nm |
35 %
@ 350 nm |
43 %
@ 350 nm |
18 %
@ 490 nm |
|
| Dark Count Rate (typ. Value)/ s-1, Tcase = 22 °C | 20 | 5 | 5 | 10 | 200 |
| Transit Time Spread
(TCSPC IRF / FWHM, typ. Value) |
130ps | 140ps | |||
| Count Rate | > 5 MHz (continuous), > 100 MHz (Peak, < 1 µs) | ||||
| Single Electron Response Width (FWHM, typ. Value) | 1.5ns | ||||
| Single Electron Response Amplitude (Vgain = 0.9 V to 1 V) | 100 to 200 mV | ||||
| Overload Indicator | LED & Acoustic Signal | ||||
| Overload Signal | TTL / CMOS, active low | ||||
| Signal Output | |||||
|---|---|---|---|---|---|
| Output Polarity | Negative | ||||
| Output Connector | SMA | ||||
| Output Impedance | 50 Ω | ||||
| Power Supply | |||||
| (from DCC-100 Card) | +12 V, -12 V (fan only), Cooler current 0.5 to 1 A | ||||
| General | |||||
| Cathode Diameter | 8mm | ||||
| Dimensions (Width x Height x Depth) | (76 x 111 x 56) mm | ||||
| Optical Adapter | C-Mount female | ||||
| Fibre Coupling | SMA 905 or FC on request | ||||
Photon counting
TCSPC
Single photon counting detection
Fluorescence
Fluorescence lifetime imaging (FLIM)
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Photonic Solutions Ltd
Unit 2.2 Quantum Court
Heriot-Watt University Research Park
Edinburgh
EH14 4AP
