Amptek X-123 Manuale d'uso - Pagina 2
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Warnings and Precautions
1.1.
CAUTION: READ MANUAL BEFORE USING THE X123
1.2.
DO NOT DROP, HIT, OR OTHER-WISE CAUSE MECHANICAL SHOCK TO THE DETECTOR, OR
CAUSE DAMAGE TO THE DETECTOR
o Mechanical shock can damage components inside the TO-8 package.
o There is vacuum inside the TO-8 for cooling. Damage to the package can cause a
vacuum leak, preventing good cooling. DAMAGE TO THE PACKAGE IS NOT
COVERED UNDER WARRANTY.
1.3.
DO NOT TOUCH THE THIN WINDOW ON THE END OF THE DETECTOR
o BROKEN WINDOWS DAMAGED BY IMPROPER HANDLING WILL NOT BE
COVERED BY WARRANTY.
o The detector windows are made from very thin film/foil materials (beryllium , Si
Boron Carbide, etc.). The windows are extremely brittle and shatter easily.
o Do not permit any objects or materials to come into contact with the window.
o If damaged, the window cannot be repaired or replaced. If the window breaks, the TO-8
detector assembly must be replaced.
o Keep the red protective cover installed when not in use.
1.4.
AVOID RADIATION DAMAGE TO THE DETECTOR
o A RADIATION DAMAGED DETECTOR WILL NOT BE COVERED UNDER WARRANTY.
o The detector will experience radiation damage if it is exposed to a high flux
environment, e.g. directly from a synchrotron.
o If the flux is low enough for spectroscopic operation, e.g. a count rate of a few
hundred kcps, there will be no radiation damage in many years of continuous
operation. But there are beams that produce a flux many orders of magnitude
higher than this, and these will cause damage.
o Also, avoid radiation exposure to the electronics, the preamplifier and signal processor.
HIGH VOLTAGE IS PRESENT IN THE PREAMPLIFIER.
1.4.1.
for SDD's. The current is limited to <100A so is not a personal hazard.
For best performance the detector and preamplifier should be mounted to a heat sink.
They should be kept away from incandescent lamps and not held in the hand. The
thermoelectric cooler dissipates up to 2 W. A low thermal resistance path to a heat sink
is needed to keep the detector cool, which is needed for the lowest electronic noise and
for spectrum stability.
For best performance pay attention to possible sources of electromagnetic
interference. Use a single point electrical ground, use the shortest length cables
possible, and keep the system far from sources of electromagnetic interference, such as
computer monitors, high power high voltage power supplies, etc. The signals from the
detector are very small so performance can be degraded by EMI.
X-123 User Manual
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This is typically +180 V for SiPIN or -135V
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