Pulse flux measuring device

Claim 1

A device for measuring particle flux comprising: first and second sequentially arranged photodiode detector means for receiving flux from a source; shield means, interposed between said first and second photodiode detector means, for shielding said second detector means from a portion of the flux received by said first detector means; first and second output means for producing first and second output signals representative of the flux incident to said first and second photodiode detector means, respectively; and compensation means for reducing said first output signal by a magnitude equivalent to a portion of said second output signal.

Claim 2

A device for measuring particle flux comprising: first and second sequentially arranged photodiode detector means for receiving flux from a source; shield means, interposed between said first and second photodiode detector means, for shielding said second detector means from a portion of the flux received by said first detector means; first and second output means for producing first and second output signals representative of the flux incident to said first and second photodiode detector means, respectively; and compensation means for reducing said first output signal by a magnitude equivalent to a portion of said second output signal.

Claim 11

A device for measuring both X-ray and neutron flux produced by a source comprising: first photodiode detector means for producing an electrical charge representative of received flux from the source; first output means, connected to said first detector means, for producing a first signal representative of the charge from said first detector means, said signal being representative of the X-ray and neutron flux from said source; shield means for blocking X-rays in the flux; proton radiator means for emitting protons when struck by neutrons, said radiator means being positioned at a side of said shield opposite the source; second photodiode detector means for producing an electrical charge representative of received flux, said second detector means being positioned at a side of said proton radiator opposite from said shield; second output means, connected to said second detector means, for producing a second signal representative of the flux reaching said second detector means; and compensation means for reducing said first signal by a magnitude equivalent to a portion of said second signal, whereby said reduced first signal is representative of the X-ray flux of the source.

Claim 12

A device for measuring both X-ray and neutron flux produced by a source comprising: first photodiode detector means for producing an electrical charge representative of received flux from the source; first output means, connected to said first detector means, for producing a first signal representative of the charge from said first detector means, said signal being representative of the X-ray and neutron flux from said source; shield means for blocking X-rays in the flux; proton radiator means for emitting protons when struck by neutrons, said radiator means being positioned at a side of said shield opposite the source; second photodiode detector means for producing an electrical charge representative of received flux, said second detector means being positioned at a side of said proton radiator opposite from said shield; second output means, connected to said second detector means, for producing a second signal representative of the flux reaching said second detector means; and compensation means for reducing said first signal by a magnitude equivalent to a portion of said second signal, whereby said reduced first signal is representative of the X-ray flux of the source.

Claim 16

A device for measuring neutron flux from at least two sources, comprising: first and second proton radiator means facing in respectively different directions to receive flux from first and second sources, respectively, and for radiating protons in response to said flux; first and second photodiode detector means associated with said first and second proton radiator means for receiving flux from the first and second sources and protons from said first and second radiator means, respectively; first and second output means for producing first and second signals representative of the proton and neutron flux incident to said first and second detector means, respectively; shield means for preventing passage of protons from said first radiator means to said second detector means and from said second radiator means to said first detector means; first compensation means for reducing said first signal by a magnitude equivalent to a portion of said second signal; and second compensation means for reducing said second signal by a magnitude equivalent to a portion of said first signal.

Claim 17

A device for measuring neutron flux from at least two sources, comprising: first and second proton radiator means facing in respectively different directions to receive flux from first and second sources, respectively, and for radiating protons in response to said flux; first and second photodiode detector means associated with said first and second proton radiator means for receiving flux from the first and second sources and protons from said first and second radiator means, respectively; first and second output means for producing first and second signals representative of the proton and neutron flux incident to said first and second detector means, respectively; shield means for preventing passage of protons from said first radiator means to said second detector means and from said second radiator means to said first detector means; first compensation means for reducing said first signal by a magnitude equivalent to a portion of said second signal; and second compensation means for reducing said second signal by a magnitude equivalent to a portion of said first signal.