Home AboutUs Products services news&events Dealers Awards contact us
STATE OF ART INSTRUMENTATION FROM AN INNOVATIVE COMPANY PRODUCTS

health physics instrumentation
for

  • Radiotherapy
  • Nuclear medicine
  • industry
  • medical physics
  • cyclotron pet - ct centres

 

NUCLEAR INSTRUMENTATION FOR A MEDICAL CYCLOTRON FACILITY

Typical layout map of a medical cyclotron facility, where at, nuclear instrumentation of Nucleonix systems make have been installed.
(Actual plan / layout may be different for different locations, depending
upon their civil construction).

 

The following Nuclear Instruments and Systems are recommeded to be installed in a medical Cyclotron facility. Details of the monitors / instruments to be installed in a location / lab are given below : Nucleonix systems can offer this complete package on turn key basis to include installation, training, commissioning & maintainance. All most all the products are designed & manufactured by Nucleonix systems.

df I. Inside Cyclotron Vault
df Area Gamma Monitor NXG_AGM
df Neutron Area Monitor NXG_NAM
df II. Exhaust Duct / Stack Activity Monitoring System
df PET Cyclotron Stack activity monitoring system -
df (a) Stack / Duct Activity Monitor Using GM Probe. NXG_STK_GM
df (b) Stack / Duct Activity Monitor Using Scintillation Detector Probe. NXG_STK_SD
df (c) Air flow meter NXG_STK_FLW
df III. Hot Lab Nuclear Instrumentation
df Digital Radiation Survey Meter with external telepole [RADMON (Micro)] RM703E
df IV. Entry to Hot Lab
df Beta-Gamma Hand, Foot and Clothing Monitor NXG_HFC1_BG
df V. Quality Control Lab
df NaI Scintillation Detector (well type) based Gamma Ray Spectroscopy System with 8K MCA  
df Digital Contamination Monitor CM710P
df VI. Packing Section
df Digital Radiation Survey meter RM701N
df VII. At the Entrance door of Cyclotron Room
df Area Gamma Monitor NXG_AGM
df VIII. Control Room Instrumentation
df Networking Software RadGrid RG910
df Pocket Dosimeter PD714 / 716
Area Gamma Monitors in installed condition
Beta-Gamma Hand, Foot & Clothing Monitor in installed condition PD714/716
Radiation doserate measurment with radiation survey meter (rm703) using external telepole detector arrangement
Gamma ray spectroscopy system with 8K mca, installed in QC lab of a medical cyclotron facility, used to test isotope purity & energy of medical isotopes produced.
All the above Picutures are equipments / instruments supplied by Nucleonix Systems in use at a medical cyclotron facility

I. INSIDE CYCLOTRON VAULT










1. Area Gamma Monitor (NXG_AGM) : Area Gamma Monitor Type NXG_AGM, manufactured & supplied by Nuceonix Systems is primarily designed to indicate dose rate in the measuring unit selected & produce, audio/visual alarms, if the dose rate exceeds preset value. By default the unit is set to be in mR/hr & the range is (0.01 - 100mR/hr). It uses latest state-of-art electronic devices including SoC based on ARM cortex A5 400MHz CPU with associated peripheral devices and other discrete ICs & components. Use of these devices makes it compact & highly reliable. Powerful embedded code adds-up and enhances its performance and gives extra advantage from the angle of fault diagnostics, programmable features & measurement of dose rate & data communication under networked environment. NXG_AGM3 is recommeded with a range of (0.01 - 1R/hr) or (0.01 - 10R/hr), for monitoring dose rates inside cyclotron vault.

 

2. Neutron Area Monitor (NXG_NAM) : This is required to monitor the Neutron flux / dose rate at just inside wall of the Cyclotron Vault. For this we recommend Neutron Area Monitor with an external detector probe (Neutron). This detector probe will have 5/10 meter long cable between the moderated Neutron detector and the Electronic measuring unit. One can preset alarm levels in dose rate / cps / cpm modes. This unit measures Neutron dose rate in mSv/hr or Flux in CPS/CPM. Dose-rate covered is (0.01 - 10mSv/hr).

 

II. EXHAUST DUCT / STACK ACTIVITY MONITORING SYSTEM

3. PET Cyclotron Stack activity monitoring system :This system designed and offered by ‘Nucleonix Systems’ is primarily meant to measure the radioactivity release levels from the stack into the atmosphere.Cyclotrons are commonly used for production of radioactive isotopes, utilized for Positron Emission Tomography (PET) imaging and other purposes.During the isotopes production process, there are routine releases of nonhazardous amounts of radioactive isotopes into atmosphere.The activity concentration of radioactive effluents, released into the atmosphere is subjected to restrictions by national regulations based on international recommendations.Uncontrolled isotopes emission through the ventilation system would increase the radiation hazard potential to nearby population.In order to control and prevent such emissions, monitoring and assessment of the released activity concentration is required.

Stack activity monitoring system offered, consists of the following sub-systems namely -
i) Smart Gamma Scintillation Probe based Stack monitor with TFT display.
ii) Smart G.M. Probe based Stack monitor with TFT display (optional) and
iii) Air flow meter.


i) Smart Gamma Scintillation Probe based Stack monitor with TFT display (NXG_STK_SD): This measuring unit electronics, facilitates connection to a smart detector probe. It is also possible to have the detector probe unit kept farther away up to a maximum of 100 meters. In case of PET stack activity monitor this probe will be installed in the stack exhaust area.

The user interface of the Electronic unit is through, touch screen display, for visual readout of stack activity, reset mode (auto or manual) selection and other system settings. Fault diagnostic info is also shown directly on touch screen. 5” TFT display indication for dose rate & configuration is provided. Large size WINDOW indication on TFT display for NORMAL & ACTIVE alarm condition.

Measures stack duct activity, using Gamma Scintillation Probe. This unit uses a 2”X2” NaI scintillation detector integral assembly to measure the stack activity in cps. Unit is provided with auto ranging & auto TC selection in the range of 30 sec to 0.5 sec depending upon detector count rate. It measure Stack activity in CPS/CPM.

 

ii) Smart G.M. Probe based Stack monitor with TFT display (optional) (NXG_STK_GM): This unit is primarily designed to indicate ‘dose rates’ in the measuring unit selected & produces audio / visual alarms, if the dose rate exceeds preset value. Stack activity monitor's measuring unit uses state-of-art electronic devices including SBC running on WINCE6 with associated peripheral devices and other discrete ICs & components. Use of these devices makes it compact & highly reliable. Powerful embedded code adds-up and enhances its performance and gives extra advantage from the angle of fault diagnostics, programmable features & dose rate & measurement of data communication under networked environment.

This measuring electronics unit facilitates connection to a smart detector probe. It is also possible to have the detector probe unit kept farther away up to a maximum of 100 meters. In case of PET stack activity monitor these probes will be installed in the stack exhaust area.

The user interface is through touch screen display, for display of dose rate, selection of reset mode (auto or manual) and other system settings. Fault diagnostic info is shown directly on touch screen.

By default the unit is set to be in µSv/h & the range is 100 mSv/h. Measures stack duct activity using GM Probe.

GM Probe measures Dose rate in (0.1µSv/h – 10.00 mSv/h), or (0.01 mR/h – 10.0 R/h). with auto ranging & auto TC selection, in the range of 30 sec to 0.5 sec depending upon detector count rate.5” TFT display indication for dose rate & configuration is provided. Large size WINDOW on indication TFT display for NORMAL & ACTIVE alarm condition.

 

iii) Air velocity transducer (NXG_FLW): Air velocity transducer used is a standard product which measures airflow in metres / sec. Anemometers have been traditionally employed for air flow measuring in industrial ducts. This cumbersome task requires performing a traverse of the opening, measuring and manually recording the velocity at numerous points, calculating the mean velocity, and then multiplying the mean velocity by the cross sectional area of the duct or opening to obtain the total volumetric flowrate measurement in cubic metre per minute.

With the newest microprocessor – based anemometers, upto to a thousand data points can be stored in the memory for mean velocity calculation. Some units can even multiply the mean velocity by cross-sectional area to give the readout in CFM. These capabilities provide tremendous new convenience for the HVAC professional. It measures flow rate in meters / sec.


III.HOT LAB NUCLEAR INSTRUMENTATION

4. Digital Radiation Survey meter with 1.2 meter telepole (RM 703E) : This digital Radiation Survey meter has a detector fixed at the end of 1.2meter tele- pole and measuring instrument is close to the user, which enables the user to view the digital display to see the dose rates away from 1.2 meter distance. This survey meter is specially designed with this 1.2 meter pole attachment to check for the dose rates in the Hot Cells,delivery lines,on the surface of the vials and other inaccssible areas in the cyclotron facility, packed cartoons/boxes/containers loaded with radioactive isotopes(such as F-18 etc).It measures dose rate in (0 - 10R/hr) or (0 - 100mSv/hr).

 

IV. ENTRY TO HOT LAB
5. Beta Gamma Hand,Foot and Clothing Monitor : (NXG_HFC1_BG) - is installed at the entrance / exit door to the Hot Lab. This is basically used for checking of the Contamination of Hand, Foot and Clothing of the Personnel Working in the Hot Lab to ensure that they are not contaminated and are clean at the end of the shift, before they leave the medical cyclotron facility.

 

V. QUALITY CONTROL (QC) LAB
6. This will have an important equipment / tool namely Gamma Ray Spectrometer, with well type scintillation detector, with 8k Multi Channel Analyser (USB) System with Software.
This equipment is basically used for Isotope identification test and Radionuclide Purity Test for the Radio-nuclides such as FDG / F-18 or Tc-99, I-131 etc., produced in the medical cyclotron facility. This becomes essential tool in the QC Lab. This system will have the following constituent units.

i. MINIM based Gamma Ray Spectrometer
ii. 2” x 2” NaI Well Type Scintillation detector
iii. Gamma Reference Source Set
iv. Lead Castle for Scintillation Detector
v. 8k MCA (USB) with Personal Computer System & Data processing Software

 

7. Digital Contamination Monitor : (CM 710P)
This is essentially a Pancake based Digital Contamination Monitor which can be used for measuring both Beta Contamination in CPS / CPM mode and to measure low gamma dose rates up to 200 mR/hr. This is used essentially to check the Contamination in QC Lab, work areas, floor space, work table, walls etc. in the QC Lab.

 

VI. PACKING SECTION

8. Digital Radiation Survey meter (RM 701N)
This unit has (0 - 10) R/hr dose rate range & is used to inspect finally packed FDG other isotopes produced in packed condition kept ready for dispatch, primarily to check for any leakage radiation.

 

VII. AT ENTRANCE DOOR OF CYCLOTRON ROOM

9. Area Gamma Monitor (NXG_AGM) : NXG_AGM (0.1 to 100 mR/hr) is required to be installed at the entrance door of the Cyclotron Room or it can be near control panel room area. This unit can be of course can be with external detector arrangement.

 
VIII. CONTROL ROOM INSTRUMENTATION

10. All the following Area Monitors measuring and alarm units are mounted in the Control Room for centralized monitoring. These include -
i. Neutron Area Monitor
ii. Area Gamma Monitor(s)
iii. Stack Monitors (GM/Scintilation) and
iv. Air Flow meter display unit

11. Personal Computer with Networking Software (Rad grid) RadGrid is a comprehensive and user friendly software that will configure, communicate and continuously monitor various Radiation Monitoring instruments manufactured by Nucleonix using MODBUS RTU protocols. It will optionally update instrument Alarm condition and status in Remote database and Nucleonix Instrument Grid database (Optional). The software runs on Windows 7 Operating system.

Parameters that are read from the instruments include Measured value, Preset value, Hardware status like LV supply, EHT status, Counts, Alarm status and other fault diagnostic information. Upto 255 MODBUS RTU instruments (max) can be connected to RadGrid.
Radgrid Software
 
12. Pocket Dosimeters & Dose Records Data Management Software
The following two types of Digital Dosimeters (Pocket / waist belt worn type) are recommended for the medical cyclotron facility with/without dose records data management software. Digital dosimeters are essential for recording the dose taken by the personnel working in the cyclotron facility in different labs. They can check for the cumulative dose recieved at the end of the shift/day. Quantities can be decided based on the centres rquirement.

1. Digital Pocket Dosimeter (DIGIDOSE) - PD714
2. Digital Pocket Dosimeter - PD716
3. Docking Station(s) - DS715
4. Dose records data Management Software - DS717

Dose records data management software may be procured & used by the centre, to maintain individual dose records data of the staff at the centre, who are enrolled for personel monitoring using these Digital Pocket Dosimeters.

Digital Pocket Dosimeter
Digital Pocket Dosimeter II
PD716_Software
Docking_Station_PD714
PD716_Software
 

Note : For details specifications refer to the technical datasheets of respective products by clicking on the products title, in the main menu.

RADIATION DETECTORS & PROBES
DETECTOR ACCESSORIES / SHEILDINGS / REFERENCE SOURCES
PRE-AMPLIFIERS
POWER SUPPLIES & INSTRUMENTATION BINS
NUCLEAR INSTRUMENT MODULES (NIMS)
NUCLEAR COUNTING SYSTEMS
RADIATION MONITORS (PORTABLES)
AREA GAMMA MONITORS
PERSONNEL MONITORING INSTRUMENTS / SYSTEMS
AIR / DUCT / STACK ACTIVITY MONITORING SYSTEMS
DATA COMMUNICATION / NETWORKING SOFTWARE SOLUTIONS
PC BASED INSTRUMENTS, SYSTEMS & ACCESSORIES
 NEW PRODUCTS (UNDER DEVELOPMENT)
   
Plot No.162 A & B, Phase-II, IDA, Cherlapally, Hyderabad-500051 India Phone:+91-40-27263701,27262146,040-68888777, Fax : 040 - 27262146
Copyrights (c) 2016, Nucleonix Systems, All rights reserved.