Nucletron Acd Autoradiographic Check Device 073250, Gyn, Audiograph

US $629.10

  • Houston, Texas, United States
  • Jan 30th
Nucletron ACD Autoradiographic Check Device 073250, GYN, Audiograph. This unit is used in clean working condition. They sell for thousands of dollars. Save some money here with this auction This unit will ship to the lower 48 states at the quoted cost. Anything else will need to be quoted The Autoradiographic Check Device enables you to verify the source position accuracy of a stepped source afterloader. The device can be connected to all microSelectron transfer tubes (GYN, needles and flexible implants). · Allows you to simulate the correct positioning of the source inside a catheter. · Enables validation of all 18 channels simultaneously. · Clearly shows source positions on the radiograph together with the lead markers at 20 mm intervals, without any additional X-ray exposure. Autoradiograph:- Autoradiography and radiography are the most currently used techniques for provision of such information. They are of particular interest to check the location and the spacing of discrete sources in source trains, and thereby to confirm that the geometry of the source trains is in agreement with the information provided by the manufacturer. They are also used to check the source positioning with respect to the applicator used. A specially designed device including a check film is provided by Nucletron to check easily before the treatment the source length, position, and in-channel identification of loaded sources used in microSelectron-LDR. Autoradiography can also be used to check the uniformity of the activity within the source. This method is very convenient for ensuring a continuous distribution of activity along wire sources and the absence of 'dud' discrete sources in a source train. However, the evaluation of autoradiographs does not allow the detection of variations in activity of less than 10%, due to the very high dose gradient near the source. Hence, the use of a linear activimeter has been preferred for this purpose at the Institut Gustave Roussy, (Duteix et al, 1982). The linear activimeter allows the measurement of the activity of the source along a small element of length, corresponding to the collimator aperture. The exploration of the entire active length is achieved by a slow and regular displacement of the source holder in front of the detector. The variation of linear activity along the source can be followed on a digital meter or recorded on a plotter. A constancy check of the linear activimeter response is performed at regular intervals with a small caesium-137 source encapsulated in a special holder to ensure a reproducible position.

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