Evaluation of a new self-developing instant film for imaging and dosimetry

Y. Watanabe, G. N. Patel, P. Patel

Research output: Contribution to journalArticlepeer-review

19 Scopus citations


Radiation sensitive films are standard dosimetric tools in radiation therapy. Films are used for machine quality assurance (QA) and treatment planning software evaluation. With the advent of intensity modulated radiation therapy (IMRT), simple and fast imaging technology is needed for patient-specific verification of radiation fields. Conventional radiographic films are often used. Radiochromic films, e.g. Gafchromic films, were recently introduced to the market. But these films have some disadvantages. JP Laboratories have developed a prototype radiochromic film, called SIFID (self-developing, instant film for imaging and dosimetry) with superior performance such that SIFID is unaffected by ambient light for months, stable up to 90°C and can be archived. SIFID is made of polymerisable diacetylene. The film develops blue colour instantly upon absorbing radiation. We evaluated the film for radiation therapy applications. Our preliminary data demonstrate its feasibility as a dosimetric tool for IMRT QA as well as for other applications.

Original languageEnglish (US)
Pages (from-to)121-124
Number of pages4
JournalRadiation protection dosimetry
Issue number1-4
StatePublished - Sep 2006

Bibliographical note

Funding Information:
This work was funded in part with government support under contracts from the US Department of Defense and Technical Support Working Group (TSWG) with funding also provided by the Department of Homeland Security, Department of State and Department of Justice through TSWG. We acknowledge Mr Ken Podeko for his technical support on this project. The IMRT plan for this study was created by the medical physics group at Columbia University (Dr C.-S. Wuu et al.).


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