目的:瞭解熱發光劑量計對低能量質子的回應，以供將來建立布拉格尖峰處劑量量測技術所需。確保其表面性質及真空回火後冷卻過程對熱發光反應無影響後，將其置於真空腔內之一壓克力置裝器內。由Cockroft-Walton加速器提供之質子源，能量在30-100keV間，經準直後通過一10μg/cm□之碳膜做拉塞福散射(Rutherford scattering)，散射後之質子均勻打在置於其後20°的壓克力置裝器內的熱發光劑量計，利用壓克力置裝器後之一電子倍增器(channeltron)作為量測質子工具。照射完之熱發光劑量計經計讀後分析輝光曲線與質子能量之關係。敏度隨質子能量下降(直線能量轉移(linear energy transfer, LET)下降)而上升，符合徑跡結構理論(track structure theory, TST)。而TLD-300之輝光曲線分析，亦證明其符合深陷阱競爭模型之推論(deep trap competition model)。同時其各輝光峰(第二、第三、第五輝光峰)與質子能量具相關性。其並非組織等效材料，需經一些校正因數修正，同詩尚需更多不同能量質子的靈敏度校正因數的量測配合，方可使質子劑量量測技術更為完整準確。

　　　　　Purpose: To understand the TLD response for low energy proton in order toestablish the proton dose measurement technique at Bragg peak in the future.sure the surface characteristics and cooling process after vacuum annealing had nosignificant effects to thermoluminescent response. TLD samples were put into the ABSTLD holder in the vacuum chamber. Proton generated from a Cockroft-Walton acceleratorin the energy range of 30-100 keV were appropriately collimated and made to passthrough a 10 μg/cm□ carbon foil. After Rutherford scattering, proton uniformlyirradiated TLDs which were placed at the 20° behind and 20 cm away from the carbonfoil. We used a channeltron behind TLD holder as the proton detector. Afterirradiation, readout of the TLD samples was done with a TLD reader and comparisonof the glow curve under different proton energies was initiated.while proton energy decreased (LET decreased), which was consistent with trackstructure theory. While TLD-300 glow curve analysis conformed to the deep trapcompetition model, it also showed that the glow peaks (P2, P3, P5) of TLD-300 dependedon proton energy in the range of 30-100 keV.but they are not a tissue equivalent material and need some calibration process.Furthermore, it still needs more sensitivity calibration factor measurements fordifferent energies of proton to makes proton dose evaluation complete.