It is widely used in radiation protection, radiation quality control, identification and detection of irradiated food, industrial radiation control and archaeological geology, especially for scientific research and small and medium-sized dose measurement. The system includes a sample drawer, and only one sample can be measured at a time; A linear program-controlled heating system and an optical measuring unit are used to measure the thermoluminescence information. The PMT of the optical measurement unit is equipped with a thermoelectric cooler, which can ensure the long-term stability of the PMT sensitivity;

• The temperature measuring thermocouple is welded at the bottom of the heating metal plate, and the heating repeatability is good, and the maximum heating temperature can be 600 ℃;
• Select the appropriate sample tray according to the shape and size of the selected detection element
• Optional neutral density filter to expand high range
• Dose algorithm meets doelap and nvlap certification requirements
• Software operation, storing all operation data and operation data
• Ensure instrument quality through daily inspection and online monitoring
• It can print various forms of reports directly
• Comply with en61000, iec61066, nasi and other standards

Radiation protection:

• Personal dose measurement of external exposure of radiation workers;

   

• Environmental cumulative dose measurement;

Radiotherapy quality control: verification of radiotherapy plan;

Identification and detection of irradiated food: used to identify whether food has been irradiated;

Archaeological and geological ceramic dating and geological dating;

Industrial irradiation control is used for dose control during X-ray inspection of semiconductor products.

Measuring instrument:

• Reading speed: install 1 dose element at a time
• Stability of reference light source: under certain temperature, the deviation of 10 consecutive readings is less than 0.5%
• Repeatability of temperature rise curve: ± 1 ℃
• Linearity: deviation less than 1%
• Stability: read 10 times continuously with standard deviation less than 0 µ Gy (tld700)
• Dark current: relatively less than 50 μ Gy（ 137Cs，TLD700）
• High voltage stability: ± 0.005% / h; 0.02% / 8 hours
• Maximum heating temperature: 400 ℃ (common thermocouple); 600 ℃ (special thermocouple)
• The measuring temperature tm-400 ℃ is adjustable; The measurement time is adjustable from 0 to 999 seconds;

Dosimetric performance index TLD-100 LIF (Mg, Ti):

• Ray measurement: photon: more than 5kev

Neutrons: thermal neutrons to 100MeV

β： Greater than 70kev

• Dose range: seven orders of magnitude

Linearity 10 μ Gy - 1Gy

Superlinear 1Gy - 20GY

• Lower limit of measurement: 10 μ Gy

   

• Tissue equivalence: almost tissue equivalence

   

• Uniformity of the same batch: ± 30% (without ECC correction)

   

• Decay: no heat treatment or use correction, less than 20% / 3 months

Use correction factor or preheating, less than 5% / 3 months

• Repeatability: 1mgy of 137Cs was used for 10 consecutive times, and the deviation of measurement results was less than 2%.

   

• Residual signal: less than 2% if not annealed after measurement

Management software:

• Multiple user workstations can be established
• Each user workstation does not interfere with each other and has different data storage addresses
• Users of each workstation can set multiple different TTP files as required
• When reading the dose element, you can directly call the TTP file
• The parameter settings are password protected. If you do not enter the correct user name and password, you can only browse, not change.
• Select and use correction factors according to actual needs
• You can enter the background and quality factor to be deducted
• Dose elements can be classified and managed by group
• The user can divide four regions of interest according to needs, and the instrument will calculate the dose according to the regions divided by the user
• Instrument status detection frequency adjustable
• Testing instrument
• Automatic storage of instrument operation data and operation data
• Selectable data storage location
• Records can be searched by date, dose element number, group number, etc
• The operation data is displayed in two forms of luminous curve and dose data
• You can print reports directly
• You can set the format and output the record