公开(公告)号：US3683284A

公开(公告)日：1972-08-08

申请号：US3683284D

申请日：1968-06-25

Applicant: PICKER CORP

Inventor： MUELLER PETER G

IPC: B41F13/08 ,  G01R19/04 ,  G01R19/165 ,  G01R29/02 ,  G01T1/36 ,  H03G3/00 ,  H03K5/22 ,  H03K5/20

CPC classification number: H03G3/00 ,  B41F13/08 ,  G01R19/04 ,  G01R19/165 ,  G01R29/02 ,  G01T1/36 ,  H03K5/22

Abstract: An apparatus for selecting signals of a predetermined amplitude range from signals received from a nuclear energy detector. An input signal produces both lower and upper level signals when the input signal amplitude exceeds a predetermined upper level. The upper and lower level signals selectively actuate a flipflop, which serves as a memory. The lower level signal and output signal of the flipflop energize a gate which provides an output signal only when the amplitude of an input signal lies between the predetermined lower and upper amplitude levels. The gate prevents an output signal when the input has an amplitude greater than the upper level.

Abstract translation: 一种用于从从核能检测器接收的信号中选择预定幅度范围的信号的装置。 当输入信号幅度超过预定的上限时，输入信号产生下电平和上电平信号。 上和下电平信号选择性地启动用作存储器的触发器。 触发器的低电平信号和输出信号仅在输入信号的幅度处于预定的较低和较高的振幅电平之间时才通电提供输出信号的门。 当输入的幅度大于上限时，门可防止输出信号。

公开(公告)号：US3904530A

公开(公告)日：1975-09-09

申请号：US28762372

申请日：1972-09-11

Applicant: PICKER CORP

Inventor： MARTONE RONALD J ,  MUELLER PETER G ,  HINDEL ROBERT

IPC: G01T1/164 ,  G01T1/20

CPC classification number: G01T1/1642 ,  A61B6/4258

Abstract: In a gamma ray imaging camera having a scintillation crystal and a plurality of phototubes, two channels are provided for receiving and processing radiation of two different energy levels arising from injection into a patient of two different radioisotopes. Signals in the two energy ranges may both be recorded for future analysis or may be displayed side-by-side on an oscilloscope. Regardless of whether one or two isotopes are used, information describing the locations of scintillation in the crystal may be digitized, recorded, and played back for visual display at a later time. Alternatively, the location information may be displayed immediately. Calibration means are also provided for presenting the output of each phototube individually on an oscilloscope so that the apparatus may be adjusted to correct for variations inherent in phototubes.

Abstract translation: 在具有闪烁晶体和多个光管的伽马射线成像相机中，提供两个通道用于接收和处理从注射到两个不同放射性同位素的患者中的两种不同能级的辐射。 两个能量范围内的信号都可以记录下来进行分析，或者可以在示波器上并排显示。

公开(公告)号：US3601799A

公开(公告)日：1971-08-24

申请号：US3601799D

申请日：1969-06-26

Applicant: PICKER CORP

Inventor： MARTONE RONALD J ,  MUELLER PETER G ,  BAILEY HOMER M

IPC: G06F12/16 ,  G06F11/00 ,  G11C29/00

CPC classification number: G06F11/00

Abstract: In a digital recording-playback technique, a ring counter is utilized in playback mode to insure that bits have not been dropped or spurious noise signals recorded. If the correct number of signals have been recorded in a word preceding a synchronizing signal, signals are obtained from two adjacent stages of the ring counter that permit the synchronizing signal to open a transfer gate from a shift register to a display register. If the correct number of signals has not been received, transfer is inhibited.

公开(公告)号：US3697753A

公开(公告)日：1972-10-10

申请号：US3697753D

申请日：1969-06-18

Applicant: PICKER CORP

Inventor： MARTONE RONALD J ,  MUELLER PETER G

IPC: G01T1/164 ,  G01T1/20

CPC classification number: G01T1/1642

Abstract: A scintillation camera system is disclosed having a scintillator camera which produces electrical signals corresponding to scintillation intensity and location on a scintillator. The system has circuitry for processing these signals including a plurality of signal amplifiers which individually amplify the intensity and location signals. The gain of these signal amplifiers is adjustable by a remote switch which alters the condition of gain control circuitry associated with the signal amplifiers. The disclosed signal amplifiers further include a control circuit which stabilizes the direct current (D.C.) output of the amplifiers at a particular level with respect to a reference voltage and yet permits output pulses to be produced without altering the output pulse amplitudes.

Abstract translation: 公开了具有闪烁体相机的闪烁照相机系统，其产生对应于闪烁体上的闪烁强度和位置的电信号。 该系统具有用于处理这些信号的电路，包括分别放大强度和位置信号的多个信号放大器。 这些信号放大器的增益可通过遥控开关进行调节，该遥控开关改变与信号放大器相关联的增益控制电路的状况。

公开(公告)号：US3683180A

公开(公告)日：1972-08-08

申请号：US3683180D

申请日：1969-06-16

Applicant: PICKER CORP

Inventor： MARTONE RONALD J ,  MUELLER PETER G ,  FLIS RICHARD J

IPC: G01T1/164 ,  G01T1/20

CPC classification number: G01T1/1642 ,  A61B6/4258

Abstract: A gamma imaging camera with a scintillation crystal and a plurality of phototubes. A light pipe optically couples the crystal and the tubes. The light pipe has, at its output end, a plurality of truncated pyramids each associated with one of the phototubes. As disclosed, the walls of the pyramids are hexagonal in cross-sectional configuration and flare outwardly to intersect adjacent walls, thus providing a continuous field of view. The disclosure also shows a lift-out detector head subassembly construction.

Abstract translation: 具有闪烁晶体和多个光管的伽马成像相机。 光管将晶体和管光学耦合。 光管在其输出端处具有多个与所述光管中的一个相关联的截头棱锥。 如所公开的，金字塔的壁呈横截面形状为六边形，向外张开以与相邻的壁相交，从而提供连续的视场。