462 Time Calibrator
- Provides fast, easy calibration of time-to-amplitude converters
- Absolute accuracy ±10 ps for a 10-ns period
- Long-term stability, 100 ppm/year
- Calibrates time periods from 10 ns to 10 µs on 80 ns to 80 µs ranges
Fast, easy calibration of timing equipment
such as time-to-amplitude converters is a routine operation with the ORTEC Model 462 Time
Calibrator. The start and stop pulses from the Model 462 are separated by an integral
multiple of a precise time period that can be selected by the operator. The accuracy of
this time period is ±10 ps for a 10-ns period and is ±0.005% of the total period for
longer periods. The long-term stability of this signal is better than 100 ppm.Operation of the Model 462 Time Calibrator is
simplified by controls that enable the operator to set the time period from 10 ns to 10.24
µs in 11 binary steps, with the range in time over which these intervals occur selectable
from 80 ns to 81.92 µs in the same number of steps. The average repetition rate of the
output pulses can be controlled to enable slower or faster count rates to match the user's
experiment, and an external gate input allows remote or automatic control of the output.
A Dispersion Amplifier on the Model 462 front
panel can mix semi-Gaussian noise with the output of the time-to-amplitude converter. Use
of this circuit spreads each peak in the time spectrum to identify the exact centroid of
each peak. This peak dispersion noise can be switched into or out of the circuit without
any cable reconnections.The Model 462 is a double-width NIM module and
all signal levels from it are standard, making it compatible with any NIM modular
instrumentation system. ORDERING
INFORMATION
| Model |
|
Description |
| 462 |
|
Time Calibrator |
|
