Our detection system consisted of a
photomultiplier tube (PMT) operated as a single photon-counting detector along with pre-processing electronics (pulse-shaping and signal discrimination), pulse-counting hardware, and input into a computer for data acquisition, display, and logging for offline analysis.
[23]
Photomultiplier Tubes - Hamamatsu Handbook 2006.
Factoring in both the positional dependence of the effciency and the beta-decay spectrum of the electrons, we obtain a detection effciency of (48 [+ or -] 6) % when
photomultiplier tube (PMT) threshold levels are set to three or more photoelectrons (see Ref.
The authors have put together a table of the machines, listing such details as the optics, the mode of detection (charge-coupled device camera or
photomultiplier tube), the platform (96-well, glass capillary, etc.), and size and weight.
All scans were recorded at
photomultiplier tube settings of 480-540, a pinhole aperture setting of 50 [micro]M, and a laser voltage setting of 20 mW.
Plasma emission is studied by a monochromator and a
photomultiplier tube hooked up to a computer digitizing card, where Ar I lines are identified in the wavelength range from 300 - 500 nm.
The light is gathered by a
photomultiplier tube, where it is converted into digital data.
In addition, the satellite carries a device called a
photomultiplier tube, which allows the camera to take advantage of ultra-low-light conditions.
The new color scanners are smaller versions of the reading half of the larger, more expensive rotary drum laser scanner-recorders that employ
photomultiplier tube technology rather than the semiconductor chargecoupled devices of the smaller film and flatbed scanners.