Published August 1989
| Version v1
Report
Open
Improvement in the dosimetric CaSO4: Dy obtention method
Description
With the purpose of saving up in the dosimetric CaSO4: Dy production, a new method was developed to obtain single crystals. In this method the nitrogen flux used to carry the acid vapour was substituted by compressed air. It was compared all dosimetric properties of the crystals. There is no alteration in the glow curve. The sensitivity is the same in both cases and the lower detection limit is 3.8 x 10-8C.Kg-1 (150 μR)
Availability note (English)
MF available from INIS under the Report Number.Abstract (Portuguese)
Com o objetivo de reduzir o custo de producao dos dosimetros termoluminescentes de CaSO4: Dy sem perda da qualidade, foi desenvolvido um novo processo de obtencao de monocristais de CaSO4: Dy substituindo-se fluxo de nitrogenio gasoso, utilizado para o arraste do vapor de acido sulfurico, por ar comprimido. Foram comparadas todas as propriedades dosimetricas dos cristais obtidos tendo-se verificado que nao houve alteracao na curva de emissao termoluminescente. A sensibilidade dos dosimetros permaneceu a mesma, com uma exposicao minima detectavel de 3,8 x 108C.Kg-8C.Kg-1 (150 μR)Files
21020500.pdf
Files
(153.2 kB)
| Name | Size | Download all |
|---|---|---|
|
md5:7dbb7d924827c25d2f739005fa7177fd
|
153.2 kB | Preview Download |
Additional details
Additional titles
- Original title (Portuguese)
- Aperfeicoamento do metodo de obtencao de monocristais de CaSO
Publishing Information
- Imprint Pagination
- 10 p.
- Report number
- IPEN-PUB--265
INIS
- Country of Publication
- Brazil
- Country of Input or Organization
- Brazil
- INIS RN
- 21020500
- Subject category
- S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
- Descriptors DEI
- CALCIUM SULFATES; CHEMICAL PREPARATION; MONOCRYSTALS; PERFORMANCE; THERMOLUMINESCENT DOSEMETERS
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; CALCIUM COMPOUNDS; CRYSTALS; DOSEMETERS; LUMINESCENT DOSEMETERS; MEASURING INSTRUMENTS; OXYGEN COMPOUNDS; SULFATES; SULFUR COMPOUNDS; SYNTHESIS