IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0086261
(1987-08-17)
|
우선권정보 |
DE-3627850 (1986-08-16) |
발명자
/ 주소 |
- Grschl Martin (Vienna ATX) Pfersmann Gerd (Vienna ATX)
|
출원인 / 주소 |
- Leybold-Heraeus GmbH (Cologne DEX 03)
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인용정보 |
피인용 횟수 :
2 인용 특허 :
0 |
초록
▼
The invention relates to a circuit arrangement for a position sensitive radiation detector which produces a current or voltage signal (UY) that depends exclusively on the coordinates x and y of the point of incidence of electromagnetic radiation on the EMR sensitive surface of a lateral diode (1). F
The invention relates to a circuit arrangement for a position sensitive radiation detector which produces a current or voltage signal (UY) that depends exclusively on the coordinates x and y of the point of incidence of electromagnetic radiation on the EMR sensitive surface of a lateral diode (1). For this purpose, the circuit arrangement has integrators (4, 5), in which the voltages (U1, U2) are formed, which are proportional to the integral over time of the output currents (I1, I2) of the lateral diode (1). The difference between the voltages (U1, U2) is used as a signal, which depends exclusively on the coordinates at that particular time, at which the arithmetic mean of these voltages (U1, U2) has reached a preselected, constant value.
대표청구항
▼
In a circuit arrangement for a position-sensitive radiation detector, which, when electromagnetic radiation is received, supplies two output currents I1, I2, the amplitude of which depends upon the coordinate of the point of incidence of the electromagnetic radiation, said circuit arrangement, to wh
In a circuit arrangement for a position-sensitive radiation detector, which, when electromagnetic radiation is received, supplies two output currents I1, I2, the amplitude of which depends upon the coordinate of the point of incidence of the electromagnetic radiation, said circuit arrangement, to which the output currents I1, I2 are supplied, generating a signal, that depends only upon the particular coordinate and not on the intensity of the incident radiation, said circuit arrangement comprising (1) a first device, to which an output current can be supplied and which generates a signal that is proportional to the product of the output current and time, and (2) a second device, to which an output current is supplied and which generates a signal that is proportional to the product of the output current and time, the improvement wherein (a) only the one output current (I1) is supplied to said first device and only the other output current (I2) is supplied to said second device; (b) a third device is provided for the comparison of two signals, said third device having a first input, at which a signal with specified value (UREF) is applied, and a second input, at which a second signal (UM) is applied, said second signal being composed of the signals (U1, U2), or parts thereof, coming from said first and second devices; (c) a fourth device is provided, which has a first input to which the output signal (U1) of said first device is supplied and a second input to which the output signal (U2) of said second device is supplied, and which forms the difference between said two output signals (U2-U1); and (d) a fifth device is provided, which stores the output signal (UD) of said fourth device at the time at which the two input signals (UM, UREF) of said third device are of equal magnitude.
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