1887
banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
Determining time resolution of microchannel plate detectors for electron time-of-flight spectrometers
Rent:
Rent this article for
USD
10.1063/1.3463690
/content/aip/journal/rsi/81/7/10.1063/1.3463690
http://aip.metastore.ingenta.com/content/aip/journal/rsi/81/7/10.1063/1.3463690
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Experimental setup to measure the temporal resolution of the MCP electron detection system. Laser pulses of 25 fs at 800 nm are focused in air by a lens and generate UV photons at 267 nm. Part of the laser beam is reflected by a beam splitter (BS) to a photodiode. The laser intensity can be adjusted by a variable neutral density (ND) filter. A prism separates the 800 and 267 nm beams and the UV beam is reflected to the MCP detector by a mirror. The detector is housed in a vacuum chamber. Signals from the photodiode and the MCP were processed by two CFDs and sent to the TDC as the start and stop signals, respectively. A VME crate transmits the TDC data to a computer for analysis.

Image of FIG. 2.
FIG. 2.

UV photon TOF spectrum (dots) obtained by the setup shown in Fig. 1. The FWHM is 204 ps, obtained by fitting the experimental spectrum with a Gaussian function, (solid curve) so that . The MCP voltage was 1800 V. The threshold of CFD 9327 was −75 mV. Inset: TDC spectrum (dots) obtained by feeding photodiode output through both 9327 and 583 CFDs. The FWHM is 54 ps, obtained by fitting the experimental spectrum with a Gaussian function (solid curve).

Image of FIG. 3.
FIG. 3.

Experimentally measured FWHM of the UV photon TOF peak representing the temporal resolution of the detection system (, circles), resolution of the MCP (, stars) calculated by Eq. (2) taking from the experiment (circles) and assuming the resolution of the CFD is , transit time spread of the MCP (, triangles) calculated by Eq. (3), and resolution of the CFD (, squares) calculated by Eq. (2) taking from the experiment (circles) and assuming the resolution of the MCP is determined by the transit time spread (, triangles) as functions of MCP voltages.

Loading

Article metrics loading...

/content/aip/journal/rsi/81/7/10.1063/1.3463690
2010-07-28
2014-04-19
Loading

Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Determining time resolution of microchannel plate detectors for electron time-of-flight spectrometers
http://aip.metastore.ingenta.com/content/aip/journal/rsi/81/7/10.1063/1.3463690
10.1063/1.3463690
SEARCH_EXPAND_ITEM