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http://www.alice.cnptia.embrapa.br/alice/handle/doc/26547Registro completo de metadados
| Campo DC | Valor | Idioma |
|---|---|---|
| dc.contributor.author | CARVALHO, A. A. | |
| dc.contributor.author | MASCARENHAS, S. | |
| dc.contributor.author | PAULA, M. H. de | |
| dc.date.accessioned | 2025-04-11T15:47:48Z | - |
| dc.date.available | 2025-04-11T15:47:48Z | - |
| dc.date.created | 1999-12-22 | |
| dc.date.issued | 1988 | |
| dc.identifier.citation | In: INTERNATIONAL SYMPOSIUM ON RADIATION PHYSICS, 4., Oct. 1988, São Paulo, SP. Book of abstracts... São Paulo: [s.n.], 1988. | |
| dc.identifier.uri | http://www.alice.cnptia.embrapa.br/alice/handle/doc/26547 | - |
| dc.description | We describe a new type of radiation dosimeter for the diagnostic X-ray region using a pyroelectric detector. The pulsed pyroelectric radiation dosimeter (PPERD) is a system constituted by a X-ray beam commutator, a pyroelectric chamber, a pre-amplifier and an electronic peak detector. The pyroelectric chamber consists basically of a lead zirconium titanate (PZT) ceramic (17mm x 17mm and 3mm thick) on a nylon support. The chamber is evacuated to about 1mm Hg. The thickness of the detector is such that it absorbed more than 99% of the X-ray beam used in these studies. The pyroelectric element itself absorbs a X-ray pulse and provides a voltage proportional to the energy absorbed. The PPERD has the following characteristics for diagnostic X-ray beams: 1) it responds linearly to the radiation intensity for a given radiation spectrum; 2) it responds linearly to the radiatin energy fluence rate; 3) the pyroelectric chamber is simple to construct, inexpensive and rugged; 4) the lower detection limit of energy fluence rate range and of exposure rate range are respectively 20mW/m2 and 9,0.10E-6C.KgE-1 sE-1 (35mR/s). | |
| dc.language.iso | eng | |
| dc.rights | openAccess | |
| dc.subject | Dosimeter | |
| dc.subject | Radiation | |
| dc.subject | Pyroelectric | |
| dc.subject | Pulsed | |
| dc.title | A new pulsed pyroelectric radiation dosimeter. | |
| dc.type | Resumo em anais e proceedings | |
| dc.format.extent2 | p.II-25. | |
| riaa.ainfo.id | 26547 | |
| riaa.ainfo.lastupdate | 2025-04-11 | |
| dc.contributor.institution | UNESP-Campus de Ilha Solteira; EMBRAPA-CNPDIA. | |
| Aparece nas coleções: | Resumo em anais de congresso (CNPDIA)  | |
Arquivos associados a este item:
| Arquivo | Descrição | Tamanho | Formato | |
|---|---|---|---|---|
| A-new-pulsed-pyroeletric-radiation-dosimeter.pdf | 350.74 kB | Adobe PDF |  Visualizar/Abrir |
