SU595892A1 - Scintillation scanning device - Google Patents

Description

I

The invention is related to the field of meannica technology and can be applied in the field of research and development of mobile communications to scientific research institutions and scientific research institutions;

It is known scintillation scooping device, containing a detection unit, a signal processing unit, a recorder with a control circuit, a scanning engine with a control circuit, and an iT compensator.

In a known device, the Ovkako compensator is made in the form of a mechanical backlash, which requires a calculation of the runout (before the start of the sprouting) run-down followed by manual installation |:

d reduces thereby the registration accuracy

the location of the pathological focus.

The purpose of the invention is to automate the process of adjustment with a simultaneous increase in the accuracy of recording the location of the pathological focus,

This is achieved by the fact that the device is equipped with a logic circuit and a compensator control circuit interconnected, with the inputs of the logic circuit connected to the processing unit of the sciprometer circuit, one of the outputs of which is connected to the compensator control circuit input. In addition, the compensator BI is complete in the vice stepper motor.

The drawings show the structural flowcharts: a sci-tip scanner device,

The scintillion scanning device contains a detection unit 1, a 2f recorder, a signal processing unit 3, a scanning mechanism 4 with a circuit 5

management

Detection unit 1 is designed to convert gamma quanta to elec- tronic $ 1 pulses and consists of a collimator, spinning crystal, photoelectric multiplier, and a precursor.

Claims (2)

Recorder 2 is designed to visually perceive marks on the scannogram and is executed, for example, in the form of an LED, the Block-3 signal processing is intended to control recorder 2 and is made in the form of interconnected, amplified, and convertible signals. calling electrical signals. The scanning mechanism 4 with the schema: 5 controls is designed for autom-. synchronous movement: a: aanian trajectory of block 1, vania detection and pei-analyzer 2. Compensator 6 before shannachena registrar 2 displacements (with respect to the detecting unit) at imeneI5 and naravlenk s.kangfagagii. The sciitillio cyoin scanner device is also loaded. Cxej / ioft 7, pre-control compensator 6 (and the compensator 6 is made in the form of a step motor with a mechanical transmission circuit of the rotational motion of the engine shaft in translational motion: recorder 2) and connected to C7; My 5 controllers are using a 4 scan engine, and a logic circuit 8, designed to analyze the scan speed values and a constant time (E delay time) of the signal processing unit 3 and performed by the multiplier. : connected with signal processing unit 3, 5 control mechanism; 4 compressions to the control circuit 7: compensator 6, the in-recipe scanning device operates as follows, Before the start of the automatic scan. With the help of the unit, the unit 1 detective unit determines the maximum CKCJ ™ counting rate over the object under investigation. In accordance with the maximum counting rate, set the scanning time V and, in the signal processing unit 3, the time constant t, Simultaneously with the setting of the speed С1shnirovannl and constant time in each modem 8 nocrjrmroT SIGNATN; proportional to Y and t. From the scheme 8 (through the control circuit 7) to the stepper motor Ci compensates the unit V1 € Vital Proc. In accordance with the control signal, the shaft of the stepper motor of the compensator 6 sd & pivot by a predetermined distance 0 will move recorder 2 to the distance required for compensation during double-sided scanning. After the presetting, the detector view 1 block t In the beginning, the C1st floor and the device include an automatic mode of operation provided by the scanning mechanism 4 and the control circuit 5. The pulses from the detection unit 1, which is moved over the object under study, are fed to the signal processing unit 3, where the signals are selected according to the amplitude of the corresponding radio spectrum of the used radioactive isotope, and converted for registration with the light register of the detector 2, the light and the light and the ais- tent light and the light and the ais- tent light and the ais- tent light and the ais- tent light and the ais- tent light and the ais- tent light and the ais- tent light and the auxiliary light is aerated light and the ais- tent beam is ais- tive and the aft light and the ais- tent beam is used for the light and the light is used and the light is used and the light is applied to the light and the light and the ais- tent light and the light and the ais- tent light and the arid light and the arid light and the auxiliary light and the auxiliary light of the aerial light and the a- according to varying pulse counting rate. When detecting unit 1 (together with recorder 2) reaches the end of the line with the help of circuit 5, the detecting unit 1 (and recorder 2) is transferred to the next line, simultaneously with the uiaroM, the control signal turns off after it goes to the stepping motor, and it returns is in zero position. When further scanning is performed by the detection unit 1 at the opposite end of the line, the control mechanism 5 of the scanning mechanism 4 (simultaneously with the step) will turn on the jraiping signal arriving at the compensator 6, which is civiec rtiT recorder 2 for the distance required to compile line breaks. Such compensation will continue until the end of the process of scaling. After the photosensitive material is developed, an image is formed on it (distributed in the studied organ of the radioactive drug), free from linear distortions of the line running through the line (effect of scallopig). Using the device eliminates the distortions that occur during the registration of the studied objects, a. clinically, it increases the reliability of inducing the pathological foci, the distribution of the radioactive drug in the object under study. Claim 1, a scintillation scanning device comprising a detecting unit 1S, a signal processing unit, a recorder with a control circuit, a scanning mechanism with a control circuit, and a compensator, characterized in that, in order to automate the adjustment process while simultaneously improving the registration accuracy of the pathological about the source, it is equipped with a logic circuit and a preamplifier circuit with a compensator connected between itself, the inputs of the logic circuit being connected (S) with a signal processing unit and a control circuit by the scanning mechanism, one of the outputs of which is connected to the input of the compensator control circuit. 2. The device according to claim 1, that is, with the fact that the compensator is. fuller in vice stepper motor. Sources of information taken into account during expert analysis: 1. Avenue of the company TitfHag 5eantfe DSqSeries, the SNer of the SELO, WTi. I,