Testovací jednotka pro photoncounting PHDY.2005

The PHDY.2005 con­t­rols the PHDX.2005 unit. It yields power for both PMTs and con­t­rol vol­tage for PMTs. The sig­nals from PMTs are con­di­ti­o­ned : ampli­fied, com­pa­red (low and high tre­sholds), con­ver­ted to digi­tal level sig­nals and coun­ted. Three coun­ters are avai­la­ble for detecti­on coun­ting : Chan­nel A, Chan­nel B and Chan­nel (A & B). All coun­ters are rese­table.

PHDX.2005 and PHDY.2005 are devi­ces pri­ma­ri­ly designed for pho­ton­coun­ting expe­ri­ments. They show the quan­tum beha­vi­our of pho­tons. They clear­ly demon­stra­te the influ­en­ce of vari­ous para­me­ters on pho­ton coun­ting sta­tis­tics (input ampli­fi­cati­on, dark current, tre­shold setup, PMT sensi­ti­vi­ty and PMT con­t­rol vol­tage, input flux, etc.). These devi­ces are sui­table for tes­ting of para­me­ters of PMTs (pho­ton mul­tiplier tubes).
See also PHDX.2005


PMT con­t­rol vol­tage

0.25 to 0.9 V

PMT DC power



1×, 10×

Digi­tal out­put

5V, 20 µs

Tre­shold level — low

0 to 5 V

Tre­shold level — high

0 to 5 V

Max coun­ter rate

10 kHz

Input and out­put sig­nal con­nec­tors


PMT power con­nec­tors



230 VAC, 50/60 Hz

Power line sys­tem



367 × 132 × 250 mm


3 kg