Ion spectroscopy — A diamond characterization tool

Abstract

Kočka, Phys. Rev. B 51 (1994) 16 668] of space-charge limited current (SCLC) transients. The evidence of the spectroscopic results is confirmed by the current-mode studies, and thus indirectly, the potential of the characterization method as well.

Pulse-height defect in single-crystal CVD diamond detectors

“…E.g., they reveal fast timing behavior and large radiation hardness while the energy resolution of ∼ 0.3% for 5 MeV α particles is comparable to that of Si detectors [7,10,11]. In addition, the charge collection for fully-ionized relativistic heavy ions was found to be close to 100% [12].…”

“…Both, the slopes and the intercepts, increase with atomic number Z. It turned out that these constants depend on Z (or mass number A): g(Z) = 0.02230 (Z 2 /10 3 ) + 0.5682 (12) f(Z) = −0.1425(100/Z) + 0.0825 (13) or g(A) = 0.03486 (A 2 /10 4 ) + 0.5728 ( 14) f(A) = −0.2840 (100/A) + 0.0381 (15) Examples of g and f for Au and Xe can be found in table 6; they were obtained only for one given Si detector and at one given value of the electric field.…”

Progress in detector properties of heteroepitaxial diamond grown by chemical vapor deposition on Ir/YSZ/Si(001) wafers

“…This procedure provides results that are more systematic by excluding the non-Gaussian low-energy tail of the 241 Am--spectrum, which is a superposition of unsolved -lines of low intensity originating from -transitions to excited states of 237 Np, signals of inelastically scattered -particles within and outside the probe, and particles impinging close to the edge of the electrodes [24]. It was shown [34] that, the energy resolution E/E of diamond sensors measured with monoenergetic charged particles is the most meaningful parameter to test the homogeneity of the crystal structure with simple detector characterization methods. Accordingly, E/E is expected strongly related to the Schubweg and to the charge-carrier lifetime (Sects.…”

“…In contrast, the SCD sensor shows the characteristics known from spectroscopic-grade diamonds supplied by [2], i.e. CCEe,h > 96% and an energy width of E/Ee,h ~ 0.4 -0.1% [5,24,34]. While the performance of the thin DOI device ID-5 resembles that of SCD ID-2 (CCEh  95%; E/Eh ~ 0.4%), the thicker detector ID-7 is affected by trapping and polarization, again particularly at e-drift (compare TCT in Fig.…”

Position‐sensitive radiation detectors made of single crystal CVD diamond

“…Using charge‐sensitive (CS) and broad‐band (BB) electronics we demonstrate the feasibility of counting mode operation of the scCVD‐PSD, where precise measurement of the single particle hit position, energy loss and timing is made possible. Bearing in mind the extraordinary physical properties of diamond and including its radiation hardness, large band‐gap, chemical inertness, low atomic mass and near tissue equivalence, such PSDs can find application in particle tracking 9 heavy ion identification 10, hadron therapy 11, deep UV 12 and low energy X‐ray beam monitoring 8, 13 in harsh environments 14.…”