EGSS is a standalone, solar powered, battery operated unit with GSM based online wireless data communication for installation in open field. It has a 2"×2" NaI(Tl) based gamma spectrometer, together with GM tube based gross gamma detectors, the former being automatically switched on when the dose rate detected by the latter increases beyond a pre-set threshold value. The establishment of a network of such field-installed systems with online communication would facilitate the real-time identification of radionuclide releases in case of radiological/nuclear emergencies. This would help in turn to facilitate prompt radionuclide-specific countermeasures in case of such incidents.

Sr. No.	Specification	Value
1	Size	Height: 92 cm Base area: 35 × 35 cm2 weight: 28 kg
2	Detectors	Gross gamma: Energy compensated GM tubes (2 redundant GM tubes for low dose rate measurement and 1 for high dose rate measurement) Spectroscopy: 2" x 2" NaI(Tl) coupled to 2" dia. bialkali PMT
3	Electronics	FPGA based MCA, automatic spectrometer triggering circuit based on feedback from GM tubes
4	Power supply	Solar Panel: 18 V/75 W Battery: 12 V/ 42 A-h lead-acid SMF battery Protection: Charge controller to protect from overcharging and deep discharge Back up: 3 days (continuous Spectroscopy), 15 days (normal operation)
5	Communication	SMS (GSM)
6	Calibration	Performed at RSS, RSSD, BARC (National Standard Laboratory)
7	Range	Dose rate: 50 nGy/h – 10 Gy/h (GM) Energy: up to 2 MeV
8	Environmental endurance	Temperature: 0 – 60 °C Relative humidity: up to 100 % Enclosure: IP68 compliant top chamber housing detectors and electronics, IP66 compliant bottom chamber housing battery (with support for solar panel)

1. Online environmental gamma Spectroscopy around
1. Research reactors
2. Nuclear power plants
3. Fuel fabrication/reprocessing facilities
4. Thermal power plants
5. Oil rigs
6. Shipping industries, etc.
2. Network of field-installed systems with online communication to facilitate real-time identification of radionuclide releases in case of radiological/nuclear emergencies, thereby facilitating prompt radionuclide-specific countermeasures in case of such incidents.

EGSS is a standalone, solar powered, battery operated unit with GSM based online wireless data communication for installation in open field. It has a 2"×2" NaI(Tl) based gamma spectrometer, together with GM tube based gross gamma detectors, the former being automatically switched on when the dose rate detected by the latter increases beyond a pre-set threshold value. The establishment of a network of such field-installed systems with online communication would facilitate the real-time identification of radionuclide releases in case of radiological/nuclear emergencies. This would help in turn to facilitate prompt radionuclide-specific countermeasures in case of such incidents.

1. Standalone, solar-powered and battery operated field-deployable system for real-time gamma Spectroscopy in open environment.
2. Online wireless GSM based data communication from field-installed system to central receiving station.
3. NaI(Tl)-PMT based spectrometer.
4. Utilizes an in-house designed and developed FPGA based MCA.
5. Only a flat surface required for installation.
6. No requirement of AC mains supply.
7. No requirement of on-site data logging computer.
8. GM counter based ERM turns-on spectrometer only when ambient gamma dose rate goes beyond a pre-set threshold level.
9. Once the battery is fully charged, works up to nearly 3 days in absence of sunlight with Spectroscopy turned-on (works for nearly 15 days in normal background radiation environment).

Sr. No.	Specification	Value
1	Size	Height: 92 cm Base area: 35 × 35 cm2 weight: 28 kg
2	Detectors	Gross gamma: Energy compensated GM tubes (2 redundant GM tubes for low dose rate measurement and 1 for high dose rate measurement) Spectroscopy: 2" x 2" NaI(Tl) coupled to 2" dia. bialkali PMT
3	Electronics	FPGA based MCA, automatic spectrometer triggering circuit based on feedback from GM tubes
4	Power supply	Solar Panel: 18 V/75 W Battery: 12 V/ 42 A-h lead-acid SMF battery Protection: Charge controller to protect from overcharging and deep discharge Back up: 3 days (continuous Spectroscopy), 15 days (normal operation)
5	Communication	SMS (GSM)
6	Calibration	Performed at RSS, RSSD, BARC (National Standard Laboratory)
7	Range	Dose rate: 50 nGy/h – 10 Gy/h (GM) Energy: up to 2 MeV
8	Environmental endurance	Temperature: 0 – 60 °C Relative humidity: up to 100 % Enclosure: IP68 compliant top chamber housing detectors and electronics, IP66 compliant bottom chamber housing battery (with support for solar panel)

1. Online environmental gamma Spectroscopy around
1. Research reactors
2. Nuclear power plants
3. Fuel fabrication/reprocessing facilities
4. Thermal power plants
5. Oil rigs
6. Shipping industries, etc.
2. Network of field-installed systems with online communication to facilitate real-time identification of radionuclide releases in case of radiological/nuclear emergencies, thereby facilitating prompt radionuclide-specific countermeasures in case of such incidents.

Space

1. No requirement of large working space
2. 250 sq. ft total area may be adequate

Manpower

1. Two Electronics or Instrumentation Engineers for production,assembly & testing of electronic components, development of firmware and application software, etc.
2. One Diploma holder in Mechanical Engineering for manufacturing of mechanical assembly

Power Supply

1. For testing, a 24 V/5 Avariable power supply can be used

Test Equipment

1. Standard Test & measuring facility for electronic systems, mainly oscilloscope, digital multimeter, soldering station, etc.

Other Facilities

1. Microcontroller programming and testing
2. FPGA program development & debugging tools and Xilinx 7 series FPGA programming facility