Method and device for correction of spectrometric measurements in the gamma photon detection field
AssigneeCommissariat a l'Energie Atomique
InventorsLoick Verger, Jean-Paul Bonnefoy-Claudet, Fran.cedilla.coise Mathy
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Abstract
The invention relates to a method and device for using a signal, or a set of data representative of the time variation of a signal output by a semiconductor detector (52), in response to the interaction of a .gamma. photon with the semiconductor material in which a signal or data is produced, being representative of the rise time of the electronic component of the signal output by the detector. The total detected charge may also be measured. Charge-rise time correlation curves are created.
Claims14
Method for detecting a .gamma. radiation with a semiconductor detector having a cathode and an anode comprising the steps of:
- detecting a signal in response to an interaction of a .gamma. photon of energy E with said semiconductor detector, said signal having an electronic component corresponding to the collection of electrons of electron hole pairs induced by said .gamma. photon in said semiconductor detector;
- producing a signal representative of a rise time of said electronic component;
- producing a signal representative of an amplitude of said electronic component;
- comparing said signals, representative of a rise time and an amplitude of said electronic component, with a set of data representing a correlation between rise times of electronic components and total charges resulting from collection of electrons;
- and
- identifying the energy E of said .gamma. photon.
Method for detecting a .gamma. radiation with a semiconductor detector having a cathode and an anode, comprising the steps of:
- detecting a signal in response to an interaction of a .gamma. photon of energy E with said semiconductor detector, said signal having an electronic component corresponding to the collection of electrons of electron-hole pairs induced by said .gamma. photon in said semiconductor detector;
- producing a signal representative of a rise time of said electronic component;
- producing a signal representative of an amplitude of said detected signal;
- comparing said signals, representative of a rise time of said electronic component and an amplitude of said detected signal, with a set of data representing a correlation between the rise times of electronic components and the total detected amplitude of detected signals;
- and
- identifying the energy E of said .gamma. photon.
Device for detecting a .gamma. radiation, comprising:
- a semiconductor detector, for outputting a signal in response to the interaction of a .gamma. photon of energy E with said detector, said signal having an electronic component corresponding to the collection of electrons of electron-hole pairs induced by said .gamma. photon in said detector;
- means for producing a signal representative of the rise time of said electronic component;
- and
- means for producing a signal representative of an amplitude of said electronic component.
Device for detecting a .gamma. radiation, comprising:
- a semiconductor detector, for outputting a signal in response to the interaction of a .gamma. photon of energy E with said detector, said signal having an electronic component corresponding to the collection of electrons of electron-hole pairs induced by said .gamma. photon in said detector:
- means for producing a signal representative of the rise time of said electronic component;
- means for producing a signal representative of an amplitude of said electronic component;
- means for comparing said signals, representative of a rise time and an amplitude of said electronic component, with a set of data representing a correlation between rise times of electronic components and total charges resulting from collection of electrons;
- and
- means for producing a signal representative of the energy E of said .gamma. photon.
Device for detecting a .gamma. radiation comprising:
- a semiconductor detector, for outputting a signal in response to the interaction of a .gamma. photon of energy E with said detector, said signal having an electronic component corresponding to the collection of electrons of electron-hole pairs induced by said .gamma. photon in said detector;
- means for producing a signal representative of the rise time of said electronic component;
- and
- means for producing a signal representative of an amplitude of said detected signal.
Device for detecting a .gamma. radiation comprising:
- a semiconductor detector, for outputting a signal in response to the interaction of a .gamma. photon of energy E with said detector, said signal having an electronic component corresponding to the collection of electrons of electron-hole pairs induced by said .gamma. photon in said detector;
- means for producing a signal representative of the rise time of said electronic component;
- means for producing a signal representative of an amplitude of said detected signal
- means for comparing said signals, representative of a rise time of said electronic component and an amplitude of said detected signals, with a set of data representing a correlation between rise times of electronic components and the total detected amplitude of detected signals;
- and
- means for producing a signal representative of the energy E of said .gamma. photon.
Dependencies are inferred from the claim text.