Identification of 88Se and search for delayed neutron emission from 87Se and 88Se

P. del Marmol; D. C. Perricos

doi:10.1016/0022-1902(70)80052-5

Identification of ⁸⁸Se and search for delayed neutron emission from ⁸⁷Se and ⁸⁸Se

P. del Marmol, D. C. Perricos

Research output › peer-review

Abstract

⁸⁷Se and ⁸⁸Se are separated at short time intervals from ²³⁵U irradiated with thermal neutrons. Their half-lives were measured through the neutron activities of their bromine daughters as 5·9 ± 0·2 sec for ⁸⁷Se and 1·3 ± 0·3 sec for ⁸⁸Se fission yield was 0·65 ± 0·13 per cent. From a delayed neutron activity consistent with the ⁸⁷Se half-life and in constant ratio with the ⁸⁷Br activity, a P_n value of 0·23 ± 0·07 per cent was evaluated for ⁸⁷Se. Evidence was not conclusive as regards delayed neutron emission from ⁸⁸Se, for which an upper limit of P_n ≤ 1 per cent as estimated.

Original language	English
Pages (from-to)	705-712
Number of pages	8
Journal	Journal of Inorganic and Nuclear Chemistry
Volume	32
Issue number	3
DOIs	https://doi.org/10.1016/0022-1902(70)80052-5
State	Published - Mar 1970

Funding

Funders	Funder number
IAEA - International Atomic Energy Agency

Access to Document

10.1016/0022-1902(70)80052-5

Cite this

@article{4a2a1c4b458641f6b9028b35dff5d271,

title = "Identification of 88Se and search for delayed neutron emission from 87Se and 88Se",

abstract = "87Se and 88Se are separated at short time intervals from 235U irradiated with thermal neutrons. Their half-lives were measured through the neutron activities of their bromine daughters as 5·9 ± 0·2 sec for 87Se and 1·3 ± 0·3 sec for 88Se fission yield was 0·65 ± 0·13 per cent. From a delayed neutron activity consistent with the 87Se half-life and in constant ratio with the 87Br activity, a Pn value of 0·23 ± 0·07 per cent was evaluated for 87Se. Evidence was not conclusive as regards delayed neutron emission from 88Se, for which an upper limit of Pn ≤ 1 per cent as estimated.",

author = "\{del Marmol\}, P. and Perricos, \{D. C.\}",

year = "1970",

month = mar,

doi = "10.1016/0022-1902(70)80052-5",

language = "English",

volume = "32",

pages = "705--712",

journal = "Journal of Inorganic and Nuclear Chemistry",

issn = "0022-1902",

publisher = "Pergamon Press Ltd.",

number = "3",

}

TY - JOUR

T1 - Identification of 88Se and search for delayed neutron emission from 87Se and 88Se

AU - del Marmol, P.

AU - Perricos, D. C.

PY - 1970/3

Y1 - 1970/3

N2 - 87Se and 88Se are separated at short time intervals from 235U irradiated with thermal neutrons. Their half-lives were measured through the neutron activities of their bromine daughters as 5·9 ± 0·2 sec for 87Se and 1·3 ± 0·3 sec for 88Se fission yield was 0·65 ± 0·13 per cent. From a delayed neutron activity consistent with the 87Se half-life and in constant ratio with the 87Br activity, a Pn value of 0·23 ± 0·07 per cent was evaluated for 87Se. Evidence was not conclusive as regards delayed neutron emission from 88Se, for which an upper limit of Pn ≤ 1 per cent as estimated.

AB - 87Se and 88Se are separated at short time intervals from 235U irradiated with thermal neutrons. Their half-lives were measured through the neutron activities of their bromine daughters as 5·9 ± 0·2 sec for 87Se and 1·3 ± 0·3 sec for 88Se fission yield was 0·65 ± 0·13 per cent. From a delayed neutron activity consistent with the 87Se half-life and in constant ratio with the 87Br activity, a Pn value of 0·23 ± 0·07 per cent was evaluated for 87Se. Evidence was not conclusive as regards delayed neutron emission from 88Se, for which an upper limit of Pn ≤ 1 per cent as estimated.

UR - https://www.scopus.com/pages/publications/0000671915

U2 - 10.1016/0022-1902(70)80052-5

DO - 10.1016/0022-1902(70)80052-5

M3 - Article

AN - SCOPUS:0000671915

SN - 0022-1902

VL - 32

SP - 705

EP - 712

JO - Journal of Inorganic and Nuclear Chemistry

JF - Journal of Inorganic and Nuclear Chemistry

IS - 3

ER -