Preparation of actinide targets for the synthesis of the heaviest elements

J. Runke; Ch E. Düllmann; K. Eberhardt; P. A. Ellison; K. E. Gregorich; S. Hofmann; E. Jäger; B. Kindler; J. V. Kratz; J. Krier; B. Lommel; C. Mokry; H. Nitsche; J. B. Roberto; K. P. Rykaczewski; M. Schädel; P. Thörle-Pospiech; N. Trautmann; A. Yakushev

doi:10.1007/s10967-013-2616-6

Preparation of actinide targets for the synthesis of the heaviest elements

J. Runke, Ch E. Düllmann, K. Eberhardt, P. A. Ellison, K. E. Gregorich, S. Hofmann, E. Jäger, B. Kindler, J. V. Kratz, J. Krier, B. Lommel, C. Mokry, H. Nitsche, J. B. Roberto, K. P. Rykaczewski, M. Schädel, P. Thörle-Pospiech, N. Trautmann, A. Yakushev

Research output: Contribution to journal › Article › peer-review

50 Scopus citations

Abstract

The heaviest elements are synthesized in heavy-ion induced hot fusion reactions with various actinide targets. Because the actinide material is often available only in very limited amounts, a deposition method with high yields (∼90 %) is needed. We report on the production of ²⁴⁴Pu, ²⁴³Am, ²⁴⁸Cm, ²⁴⁹Bk, and ²⁴⁹Cf targets on thin Ti backings by molecular plating. Different chemical purification steps using ion chromatographic techniques were applied for the purification of ²⁴⁹Cf and ²⁴⁴Pu. The deposition procedure applied for the production of ∼0.4-0.8 mg/cm² thick targets is described. The deposition yield was determined either by α-particle or γ-ray spectroscopy. Furthermore, neutron activation analysis has been applied in the case of ²⁴⁴Pu, ²⁴³Am, and ²⁴⁸Cm. Information about the spatial distribution and homogeneity of the target layer was obtained by radiographic imaging.

Original language	English
Pages (from-to)	1081-1084
Number of pages	4
Journal	Journal of Radioanalytical and Nuclear Chemistry
Volume	299
Issue number	2
DOIs	https://doi.org/10.1007/s10967-013-2616-6
State	Published - Feb 2014

Keywords

Actinides
Berkelium
Californium
Electrodeposition
Molecular plating
Targets

Access to Document

10.1007/s10967-013-2616-6

Cite this

Runke, J., Düllmann, C. E., Eberhardt, K., Ellison, P. A., Gregorich, K. E., Hofmann, S., Jäger, E., Kindler, B., Kratz, J. V., Krier, J., Lommel, B., Mokry, C., Nitsche, H., Roberto, J. B., Rykaczewski, K. P., Schädel, M., Thörle-Pospiech, P., Trautmann, N., & Yakushev, A. (2014). Preparation of actinide targets for the synthesis of the heaviest elements. Journal of Radioanalytical and Nuclear Chemistry, 299(2), 1081-1084. https://doi.org/10.1007/s10967-013-2616-6

@article{9882cde2110f438eb969955193d63651,

title = "Preparation of actinide targets for the synthesis of the heaviest elements",

abstract = "The heaviest elements are synthesized in heavy-ion induced hot fusion reactions with various actinide targets. Because the actinide material is often available only in very limited amounts, a deposition method with high yields (∼90 %) is needed. We report on the production of 244Pu, 243Am, 248Cm, 249Bk, and 249Cf targets on thin Ti backings by molecular plating. Different chemical purification steps using ion chromatographic techniques were applied for the purification of 249Cf and 244Pu. The deposition procedure applied for the production of ∼0.4-0.8 mg/cm2 thick targets is described. The deposition yield was determined either by α-particle or γ-ray spectroscopy. Furthermore, neutron activation analysis has been applied in the case of 244Pu, 243Am, and 248Cm. Information about the spatial distribution and homogeneity of the target layer was obtained by radiographic imaging.",

keywords = "Actinides, Berkelium, Californium, Electrodeposition, Molecular plating, Targets",

author = "J. Runke and D{\"u}llmann, {Ch E.} and K. Eberhardt and Ellison, {P. A.} and Gregorich, {K. E.} and S. Hofmann and E. J{\"a}ger and B. Kindler and Kratz, {J. V.} and J. Krier and B. Lommel and C. Mokry and H. Nitsche and Roberto, {J. B.} and Rykaczewski, {K. P.} and M. Sch{\"a}del and P. Th{\"o}rle-Pospiech and N. Trautmann and A. Yakushev",

year = "2014",

month = feb,

doi = "10.1007/s10967-013-2616-6",

language = "English",

volume = "299",

pages = "1081--1084",

journal = "Journal of Radioanalytical and Nuclear Chemistry",

issn = "0236-5731",

publisher = "Akad{\'e}miai Kiad{\'o}",

number = "2",

}

Runke, J, Düllmann, CE, Eberhardt, K, Ellison, PA, Gregorich, KE, Hofmann, S, Jäger, E, Kindler, B, Kratz, JV, Krier, J, Lommel, B, Mokry, C, Nitsche, H, Roberto, JB, Rykaczewski, KP, Schädel, M, Thörle-Pospiech, P, Trautmann, N & Yakushev, A 2014, 'Preparation of actinide targets for the synthesis of the heaviest elements', Journal of Radioanalytical and Nuclear Chemistry, vol. 299, no. 2, pp. 1081-1084. https://doi.org/10.1007/s10967-013-2616-6

TY - JOUR

T1 - Preparation of actinide targets for the synthesis of the heaviest elements

AU - Runke, J.

AU - Düllmann, Ch E.

AU - Eberhardt, K.

AU - Ellison, P. A.

AU - Gregorich, K. E.

AU - Hofmann, S.

AU - Jäger, E.

AU - Kindler, B.

AU - Kratz, J. V.

AU - Krier, J.

AU - Lommel, B.

AU - Mokry, C.

AU - Nitsche, H.

AU - Roberto, J. B.

AU - Rykaczewski, K. P.

AU - Schädel, M.

AU - Thörle-Pospiech, P.

AU - Trautmann, N.

AU - Yakushev, A.

PY - 2014/2

Y1 - 2014/2

N2 - The heaviest elements are synthesized in heavy-ion induced hot fusion reactions with various actinide targets. Because the actinide material is often available only in very limited amounts, a deposition method with high yields (∼90 %) is needed. We report on the production of 244Pu, 243Am, 248Cm, 249Bk, and 249Cf targets on thin Ti backings by molecular plating. Different chemical purification steps using ion chromatographic techniques were applied for the purification of 249Cf and 244Pu. The deposition procedure applied for the production of ∼0.4-0.8 mg/cm2 thick targets is described. The deposition yield was determined either by α-particle or γ-ray spectroscopy. Furthermore, neutron activation analysis has been applied in the case of 244Pu, 243Am, and 248Cm. Information about the spatial distribution and homogeneity of the target layer was obtained by radiographic imaging.

AB - The heaviest elements are synthesized in heavy-ion induced hot fusion reactions with various actinide targets. Because the actinide material is often available only in very limited amounts, a deposition method with high yields (∼90 %) is needed. We report on the production of 244Pu, 243Am, 248Cm, 249Bk, and 249Cf targets on thin Ti backings by molecular plating. Different chemical purification steps using ion chromatographic techniques were applied for the purification of 249Cf and 244Pu. The deposition procedure applied for the production of ∼0.4-0.8 mg/cm2 thick targets is described. The deposition yield was determined either by α-particle or γ-ray spectroscopy. Furthermore, neutron activation analysis has been applied in the case of 244Pu, 243Am, and 248Cm. Information about the spatial distribution and homogeneity of the target layer was obtained by radiographic imaging.

KW - Actinides

KW - Berkelium

KW - Californium

KW - Electrodeposition

KW - Molecular plating

KW - Targets

UR - http://www.scopus.com/inward/record.url?scp=84893246541&partnerID=8YFLogxK

U2 - 10.1007/s10967-013-2616-6

DO - 10.1007/s10967-013-2616-6

M3 - Article

AN - SCOPUS:84893246541

SN - 0236-5731

VL - 299

SP - 1081

EP - 1084

JO - Journal of Radioanalytical and Nuclear Chemistry

JF - Journal of Radioanalytical and Nuclear Chemistry

IS - 2

ER -

Preparation of actinide targets for the synthesis of the heaviest elements

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this