.. auto-generated by script ../../../../utils/nxdl2rst.py from the NXDL source NXpulser_apm.nxdl.xml .. index:: ! NXpulser_apm (base class) ! pulser_apm (base class) see: pulser_apm (base class); NXpulser_apm .. _NXpulser_apm: ============ NXpulser_apm ============ **Status**: base class, extends :ref:`NXobject` **Description**: Laser-, voltage-, or combined- pulsing to trigger field evaporation. **Symbols**: The symbols used in the schema to specify e.g. dimensions of arrays. **Nions**: Total number of ions collected. **Groups cited**: :ref:`NXbeam`, :ref:`NXcollection`, :ref:`NXsource`, :ref:`NXtransformations` .. index:: NXsource (base class); used in base class, NXtransformations (base class); used in base class, NXbeam (base class); used in base class, NXcollection (base class); used in base class **Structure**: .. _/NXpulser_apm/pulse_mode-field: .. index:: pulse_mode (field) **pulse_mode**: (optional) :ref:`NX_CHAR ` How evaporation is physically triggered. Any of these values: ``laser`` | ``high_voltage`` | ``laser_and_high_voltage`` .. _/NXpulser_apm/pulse_frequency-field: .. index:: pulse_frequency (field) **pulse_frequency**: (optional) :ref:`NX_NUMBER ` {units=\ :ref:`NX_FREQUENCY `} Frequency with which the high voltage or laser pulser fires. .. _/NXpulser_apm/pulse_fraction-field: .. index:: pulse_fraction (field) **pulse_fraction**: (optional) :ref:`NX_NUMBER ` {units=\ :ref:`NX_UNITLESS `} Fraction of the pulse_voltage that is applied in addition to the standing_voltage at peak voltage of a pulse. .. _/NXpulser_apm/pulsed_voltage-field: .. index:: pulsed_voltage (field) **pulsed_voltage[Nions]**: (optional) :ref:`NX_FLOAT ` {units=\ :ref:`NX_VOLTAGE `} NEED TO DISCUSS WITH APM COLLEAGUES IN MORE DETAIL WHAT THIS IS SPECIFICALLY! .. _/NXpulser_apm/standing_voltage-field: .. index:: standing_voltage (field) **standing_voltage[Nions]**: (optional) :ref:`NX_FLOAT ` {units=\ :ref:`NX_VOLTAGE `} Direct current voltage between the specimen and the (local electrode) in the case of a LEAP instrument. .. _/NXpulser_apm/laser_pulser-group: **laser_pulser**: (optional) :ref:`NXsource` Atom probe microscopes use controlled laser, voltage, or a combination of pulsing strategies to trigger the excitation and eventual field evaporation/emission of an ion in an atom probe microscopy experiment. # Many microscopes have a laser installed which enables measurements also with poorly conductive specimens. .. _/NXpulser_apm/laser_pulser/name-field: .. index:: name (field) **name**: (optional) :ref:`NX_CHAR ` Given name. .. _/NXpulser_apm/laser_pulser/model-field: .. index:: model (field) **model**: (optional) :ref:`NX_CHAR ` Given brand or model name by the manufacturer. .. _/NXpulser_apm/laser_pulser/serial_number-field: .. index:: serial_number (field) **serial_number**: (optional) :ref:`NX_CHAR ` Given hardware name/serial number or hash identifier issued by the manufacturer. .. _/NXpulser_apm/laser_pulser/manufacturer_name-field: .. index:: manufacturer_name (field) **manufacturer_name**: (optional) :ref:`NX_CHAR ` Given name of the manufacturer. .. _/NXpulser_apm/laser_pulser/wavelength-field: .. index:: wavelength (field) **wavelength**: (optional) :ref:`NX_FLOAT ` {units=\ :ref:`NX_WAVELENGTH `} Nominal wavelength of the laser radiation. .. _/NXpulser_apm/laser_pulser/power-field: .. index:: power (field) **power**: (optional) :ref:`NX_FLOAT ` {units=\ :ref:`NX_POWER `} Average power of the laser source while illuminating the specimen. .. _/NXpulser_apm/laser_pulser/pulse_energy-field: .. index:: pulse_energy (field) **pulse_energy**: (optional) :ref:`NX_FLOAT ` {units=\ :ref:`NX_ENERGY `} Average (??) energy of the laser at peak of (each) ?? pulse. .. _/NXpulser_apm/laser_pulser/TRANSFORMATIONS-group: **TRANSFORMATIONS**: (optional) :ref:`NXtransformations` Set of transformations which describe the geometry between how the laser focusing optics/pinhole-attached coordinate system is defined, how it has to be transformed so that it aligns with the specimen coordinate system. A right-handed Cartesian coordinate system, the so- called laser space, should be assumed, whose positive z-axis points into the direction of the propagating laser beam. .. _/NXpulser_apm/laser_beam-group: **laser_beam**: (optional) :ref:`NXbeam` Details about specific positions along the focused laser beam which illuminates the atom probe specimen. .. _/NXpulser_apm/laser_beam/pinhole_position-group: **pinhole_position**: (optional) :ref:`NXcollection` Track time-dependent settings over the course of the measurement where the laser beam exits the focusing optics. .. _/NXpulser_apm/laser_beam/spot_position-group: **spot_position**: (optional) :ref:`NXcollection` Track time-dependent settings over the course of the measurement where the laser hits the specimen. Hypertext Anchors ----------------- Table of hypertext anchors for all groups, fields, attributes, and links defined in this class. ============================================================================================================== ============================================================================================================== documentation (reST source) anchor web page (HTML) anchor ============================================================================================================== ============================================================================================================== :ref:`/NXpulser_apm/laser_beam-group ` :ref:`#nxpulser-apm-laser-beam-group ` :ref:`/NXpulser_apm/laser_beam/pinhole_position-group ` :ref:`#nxpulser-apm-laser-beam-pinhole-position-group ` :ref:`/NXpulser_apm/laser_beam/spot_position-group ` :ref:`#nxpulser-apm-laser-beam-spot-position-group ` :ref:`/NXpulser_apm/laser_pulser-group ` :ref:`#nxpulser-apm-laser-pulser-group ` :ref:`/NXpulser_apm/laser_pulser/manufacturer_name-field ` :ref:`#nxpulser-apm-laser-pulser-manufacturer-name-field ` :ref:`/NXpulser_apm/laser_pulser/model-field ` :ref:`#nxpulser-apm-laser-pulser-model-field ` :ref:`/NXpulser_apm/laser_pulser/name-field ` :ref:`#nxpulser-apm-laser-pulser-name-field ` :ref:`/NXpulser_apm/laser_pulser/power-field ` :ref:`#nxpulser-apm-laser-pulser-power-field ` :ref:`/NXpulser_apm/laser_pulser/pulse_energy-field ` :ref:`#nxpulser-apm-laser-pulser-pulse-energy-field ` :ref:`/NXpulser_apm/laser_pulser/serial_number-field ` :ref:`#nxpulser-apm-laser-pulser-serial-number-field ` :ref:`/NXpulser_apm/laser_pulser/TRANSFORMATIONS-group ` :ref:`#nxpulser-apm-laser-pulser-transformations-group ` :ref:`/NXpulser_apm/laser_pulser/wavelength-field ` :ref:`#nxpulser-apm-laser-pulser-wavelength-field ` :ref:`/NXpulser_apm/pulse_fraction-field ` :ref:`#nxpulser-apm-pulse-fraction-field ` :ref:`/NXpulser_apm/pulse_frequency-field ` :ref:`#nxpulser-apm-pulse-frequency-field ` :ref:`/NXpulser_apm/pulse_mode-field ` :ref:`#nxpulser-apm-pulse-mode-field ` :ref:`/NXpulser_apm/pulsed_voltage-field ` :ref:`#nxpulser-apm-pulsed-voltage-field ` :ref:`/NXpulser_apm/standing_voltage-field ` :ref:`#nxpulser-apm-standing-voltage-field ` ============================================================================================================== ============================================================================================================== **NXDL Source**: https://github.com/FAIRmat-Experimental/nexus_definitions/tree/fairmat/base_classes/NXpulser_apm.nxdl.xml