Harshaw TLD Card Dosimeters

Harshaw TLD Card Dosimeters

Harshaw TLD Card Dosimeters are used for whole body dose detection and are widely used in military departments, nuclear industry, health disease control and petroleum mining industries.The dosimeter consists of three parts: a dosimeter, a holder and a hanging clip; a dose card is placed in the holder with one side of the barcode close to the inner side of the body to facilitate barcode scanning; the dosimeter is compatible with the our DA-3800 Reader and the THERMOFISHER 6600 Reader. The dosimeter selection can configure dose cards and holders with different functions according to the needs of users.

TLD Card

Four dose elements can be placed. The structure diagram of the internal carrier card of the dose meter is as follows; a transparent window is set to mark and identify the dose meter. The dose element can be configured for γ, β, and X measurements.

1 is the internal carrier card, 2.2-1 and 2-2 are the photoluminescence/thermoluminescence dose element clamping devices.

TLD Card Holder 

1.Dosimeter upper cover

2. Dosimeter lower cover

3. Beta ray window shielding material, through which Hp (0.07) can be measured

4. PTFE internal organ bionic shielding material, through which Hp (10) can be measured

5. Metal heavy filter material, through which Hp (3) can be measured

6. Copper X-ray shielding material, through which X-ray dose can be measured

7. Carrier card

8. Sealing strip

As shown in the internal structure diagram of the dosimeter, the upper and lower pieces of the dose box shell need to be locked, and need to be opened with the help of special tools. The upper part has obvious color markings (red, yellow, and blue), and the back has an observation window through which the barcode number of the internal carrier card can be seen, which is convenient for information entry into the system. There is a waterproof sealing strip inside to ensure that it has functions such as waterproof and rainproof when worn outdoors. The dosimeter has bionic functions and built-in a variety of bionic materials and shielding materials. It can measure Hp (10), Hp (0.07), Hp (3) radiation doses in internal organs, skin, eyes and other parts. The carrier card can carry multiple thermoluminescent elements and has enough space to paste barcodes. The photoluminescent/thermoluminescent elements have fixing and locking mechanisms to ensure corresponding different measurement parts.