Response of CR-39 track detector to low-energy heavy ion beams

Ishikawa, Ippei; Kishi, Atsuya; Kada, Wataru; Sato, F.; Kato, Yushi; Iida, Toshiyuki

doi:10.1016/j.radmeas.2008.03.036

Cited by 6 publications

(2 citation statements)

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“…The CR-39 detector is widely used in various scientific fields, such as nuclear physics, radon dosimetry, and radiobiological experiments. Moreover, PADC track detectors have been suggested as effective and convenient for measuring heavy ion beams [2].…”

Section: Introductionmentioning

confidence: 99%

Development of UV-Irradiated PADC and Improvement of Etching for Reducing Experimental Time

2023

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PADC is well known as a highly sensitive solid-state nuclear track detector. A proposal is for a radiation education method that utilizes these characteristics. A significant issue in the proposed educational method using PADC is the time-consuming etching process. This study attempted to reduce etching time by using a homemade PADC. The experimental results have revealed that the homemade PADC achieves faster etch pit enlargement compared to BARYOTRAK (commercial PADC). An attempt was made to enlarge etch pit diameters rapidly by irradiating UV at a wavelength of 253.7 nm and etching with NaOHaq/ethanol solution. The results revealed that UV irradiation at a wavelength of 253.7 nm, after etching, resulted in etch pit diameters several times larger than those obtained in conventional methods within the same etching time. Therefore, UV irradiation and short-time etching with NaOHaq/ethanol solution proved to be effective. This study also investigated the effects of fading on the PADC during its storage period after UV irradiation. The experimental results confirmed that the etch pit diameters shrank by approximately 30% after 2 months of storage. However, considering the enlargement effect of the etch pit diameters due to UV irradiation, it can be concluded that UV irradiation is practical for radiation education experiments.

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Section: Introductionmentioning

confidence: 99%

Development of UV-Irradiated PADC and Improvement of Etching for Reducing Experimental Time

2023

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“…Spatially resolved detection and dosimetry of single energetic ions, (protons, α-particles, neutrons and fission fragments), by solid state nuclear track detection (SSNTD) is a valuable tool in several R&D environments. These include fusion research by magnetic confinement or laser ablation (Bhatti et al 2011), the semiconductor device industry (e.g., ion implantation and the development of nanocrystal-based polymer thin-film optical filters (Gan et al 2008)), for detection of heavy ion tracks (Ishikawa et al 2008), environmental radon monitoring (Nikolaev and Ilic 1999), dosimetry in space (Bhowmik et al 2011) and for purposes of enforcing safeguards against illicit trafficking of nuclear material (Bogard et al). Current research on the use of ion beams for nanopore technologies (Howorka andSiwy 2009, Choi et al 2006) and micro/nano-fluidic devices for biomolecular and biomedical research is a topical area.…”

Section: Introductionmentioning

confidence: 99%

Characterization of single α-tracks by photoresist detection and AFM analysis–focus on biomedical science and technology

Falzone¹,

Myhra²,

Chakalova³

et al. 2013

Phys. Med. Biol.

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The interactions between energetic ions and biological and/or organic target materials have recently attracted theoretical and experimental attention, due to their implications for detector and device technologies, and for therapeutic applications. Most of the attention has focused on detection of the primary ionization tracks, and their effects, while recoil target atom tracks remain largely unexplored. Detection of tracks by a negative tone photoresist (SU-8), followed by standard development, in combination with analysis by atomic force microscopy, shows that both primary and recoil tracks are revealed as conical spikes, and can be characterized at high spatial resolution. The methodology has the potential to provide detailed information about single impact events, which may lead to more effective and informative detector technologies and advanced therapeutic procedures. In comparison with current characterization methods the advantageous features include: greater spatial resolution by an order of magnitude (20 nm); detection of single primary and associated recoil tracks; increased range of fluence (to 2.5 × 10(9) cm(-2)); sensitivity to impacts at grazing angle incidence; and better definition of the lateral interaction volume in target materials.

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