Radiation Analyzer and Gamma Spectrometer

SK7761 is a radiation multimeter based on spectrometer analysis, featuring a scintillation detector as its primary sensing element and an integrated multi-channel analyzer. Through spectrometer analysis, it accurately identifies the energy and intensity of radiation, providing much richer radiation measurement information compared to Geiger counters.

With no consumable parts, the SK7761 offers access to all measurement functions without the need for a connected smartphone. Powered by replaceable AA batteries designed for a storage life of up to 10 years, it’s ideal for long-term storage and emergency use scenarios. It boasts comprehensive external interfaces, supporting Bluetooth and Ethernet connections, and can be powered via Power over Ethernet (PoE), enabling the formation of sensor networks for long-term online monitoring. For enthusiasts of nuclear physics, the SK7761 can output pulse signals via a 3.5mm jack to connect with a extend analysis system.

Designed with a rugged and flame-retardant shell, it’s suitable for outdoor applications such as exploration, scientific expeditions, accident investigations, and more. It operates reliably within altitudes ranging from -2000m to +30km, and even in vacuum conditions. With an IP65 waterproof rating and the ability to float if dropped in water, it’s built to withstand various environmental challenges.

Application

The main function of this instrument is energy spectrum analysis. Based on energy spectrum analysis, the nature of radiation can be clarified, and trace amounts of artificial radioactivity can be distinguished from background radiation, so as to make an accurate judgment on nuclear pollution. For example:

(1) Identify whether soil, food, utensils, etc. are contaminated by γ-nuclides leaked from nuclear facilities.

(2) Determine whether there is a nuclear reagent or drug leak.

(3) Identify the type of radioactive material, such as thorium, uranium, radium, 131 iodine, 137Cs, etc.

It can replace the Geiger counter for radiation alarm and be used for daily background and radiation material monitoring. Typical application scenarios include:

(4) Radiation monitoring of stone, tiles and other living environment items.

(5) Security, accident investigation, and production site monitoring.

(6) Radiation diagnosis and treatment site monitoring.

It can be used as a teaching instrument or for specific scientific research purposes.

Key Features

Standard 2.54cm3 cesium iodide (thallium) scintillation detector and 16mm2PIN detector.

Powered by AA battery, up to 10 days of continuous use.

Automatically switch between USB (Type-C) and POE power supply.

Weight 300g, ink display, IP65 waterproof.

Built-in WIFI, Bluetooth, RJ45 interface, TF card slot.

With light, sound and vibration alarm.

Can output pulse.

  • Usage field

    The main function of KC761 is energy spectrum analysis. Based on this measurement, artificial radioactivity can be distinguished from background radiation, So it is possible to make an accurate judgment of nuclear contamination with KC761.
    For example:
    Identify whether soil, food, utensils, etc. are contaminated with gamma nuclides leaked from nuclear facilities.
    To determine whether there is a leakage of nuclear reagents and medicines.
    Identify the types of radioactive substances, such as identifying thorium, uranium, radium, 131Iodine, 137Cs, etc.
    It can replace Geiger counter for radiation alarm and be used as daily monitoring of background and radioactive substances. Typical application scenes such as:
    Radiation monitoring of stone, tile and other living environment items.
    Security, accident investigation, production place monitoring.
    Radiation diagnosis, treatment place monitoring.
Energy range

The nominal energy range is 9keV~3MeV. When the energy is less than 15keV, the sensitivity decreases rapidly, the lowest practical energy is about 9keV, and the lowest perceptible energy is about 5keV.

Energy uncertainty of type C ray

In the range of 100~10kcps, 23±10℃, the uncertainty of 662keV γ radiation energy measurement is guaranteed to be better than ±(2%+10keV), or typical uncertainty ±(1%+5keV); the uncertainty of 9keV~1.5MeV arbitrary monoenergetic γ radiation energy measurement is guaranteed to be better than ±(5%+10keV).

Energy resolution of type C rays

SK7761A:8.2%@662keV

SK7761B:7.5%@662keV

SK7761C:6.2%@662keV

SK7761CN:6.0%@662keV

Absorbed dose rate of type C radiation

Background ~ 100μGy/h, uncertainty ±15%@662keV

Compensated energy response: ±20% (60keV~1.5MeV), -23%~+43% (30keV~2MeV)

Strong radiation alarm: 100μGy/h~10mGy/h, -50%~+100%@662keV.

Measuring time

Energy spectrum accumulation time: 1s~86400s can be set (the maximum pass rate of the scintillation detector is 30kcps, and the maximum pass rate of the PIN detector is 10kcps)

Dose accumulation time: any time, from the last time the user cleared the accumulated dose to the time the accumulated dose is checked, non-volatile storage cycle ≤1h, saved when the power is turned off.

Stability

Temperature stability: within the range of -10 to 50°C, amplitude drift ≤ ±10%, energy drift ≤ ± (5% + 10keV)

Temperature range

-10~50℃

Humidity range

0%~100% (short term, when there is no condensation inside the machine)

Altitude

-2000m~30km, vacuum operation is allowed (pressure change rate <10hPa/min)

Waterproof grade

IP65

Module No. Item Description
SK7761A Radiation Analyzer and Gamma Spectrometer 8.2% FWHM CsI + PIN
SK7761B Radiation Analyzer and Gamma Spectrometer 7.5% FWHM CsI + PIN
SK7761C Radiation Analyzer and Gamma Spectrometer 6.2% FWHM CsI + PIN
SK7761CN Radiation Analyzer and Gamma Spectrometer 5.9% FWHM 6Li + CsI + PIN

Leave A Message

    Saluki Technology