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The CaSO₄:Tm-PTFE TLDs have been prepared and their energy dependences of TL intensity to X-rays have been investigated. The dose dependence of the prepared CaSO₄:Tm-PTFE TLDs is linear within the range of 10uGy-10Gy for X-rays and gamma rays. The spectral peaks of TL emission spectrum are at about 350㎜ 475㎜. The fading rate of the main peak has been found to be about 2% for 30days when CaSO₄:Tm-PTFE TLDs stored in the dark room at room temperature. The energy dependence of CaSO₄:Tm-PTFE TLD has been compensated by combining the TL responses of one bare TLD and five TLDs filtered with 10.㎜ Al, 0.2㎜ Cu, 0.5㎜ Cu, 1.5㎜ Cu, 2.0㎜ Pb respectively. The determined correction coefficients for filter combination are a_(0)=0.078, a₁=-0.009, a₂=-0.235, a₃=0.588, a₄=0.568 and a_(5)=0.180 respectively. From the results of these studies, the prepared TLD badge of six dosimeter combination may be useful as a radiation dosimeter for personal and environmental monitoring.
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